U.S. patent number 3,625,774 [Application Number 05/032,309] was granted by the patent office on 1971-12-07 for battery-mounted receptacle means.
Invention is credited to Lawrence E. Rodgers.
United States Patent |
3,625,774 |
Rodgers |
December 7, 1971 |
BATTERY-MOUNTED RECEPTACLE MEANS
Abstract
I disclose a receptacle arrangement for mounting on a battery,
said arrangement comprising an insulating support, receptacle means
mounted on said support, conductors mounted on said support and
electrically connected to said receptacle means, said conductors
being disposed for electrical engagement with terminals
respectively of said battery, and cooperating means on said support
and on said battery terminals for securing said support to said
terminals at a position of electrical engagement of said conductors
with said terminals respectively.
Inventors: |
Rodgers; Lawrence E.
(Pittsburgh, PA) |
Family
ID: |
21864242 |
Appl.
No.: |
05/032,309 |
Filed: |
April 27, 1970 |
Current U.S.
Class: |
429/121; 439/359;
439/500 |
Current CPC
Class: |
H01M
50/50 (20210101); H01R 11/287 (20130101); H01M
50/20 (20210101); Y02E 60/10 (20130101) |
Current International
Class: |
H01M
2/20 (20060101); H01R 11/11 (20060101); H01R
11/28 (20060101); H01M 2/10 (20060101); H01m
001/00 (); H01r 011/00 () |
Field of
Search: |
;136/108,109,135,181
;339/152,119,159,154,156,92 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Walton; Donald L.
Claims
I claim:
1. A receptacle arrangement adapted for mounting on any one of
several batteries of different size each having different terminal
locations, said arrangement comprising an insulating support
member, receptacle means including opposite terminals mounted on
said support member, a pair of conductors mounted on said support
member and respectively connected to the opposite terminals of said
receptacle means, said pair of conductors being so constituted as
to make electrical contact with the opposite terminals respectively
of batteries of different size when said support member is mounted
thereon, and means on said support member cooperable with the
terminals of batteries of different size to secure said support
member in position thereon and to effect electrical contact of said
conductors with the battery terminals.
2. A receptacle arrangement according to claim 1, wherein the last
said means comprises a first pair of appertures in said support
member located conformably to the terminals of a first battery of
one size, and a second pair of apertures in said support member
located differently than said first pair and conformably to the
terminals of a second battery of different size than the first
battery.
3. A receptacle arrangement according to claim 1, wherein said
support member is provided with preferential weakening means
therein to enable portions of said support member to be broken away
of conform the support member to the size of the battery on which
it is mounted.
4. A receptacle arrangement according to claim 1, wherein said
receptacle means comprises characteristic slots for receipt of
complementary pronged plugs, said slots permitting entry thereinto
by conventional pronged plugs but insuring that the complementary
pronged plugs used therewith cannot enter into a conventional
standard receptacle.
5. A receptacle arrangement adapted for mounting on a battery, said
arrangement comprising an insulating support member, receptacle
means including opposite terminals mounted on said support member,
a pair of conductors mounted on said support member and
respectively connected to opposite terminals of said receptacle
means, said pair of conductors being so constituted as to make
electrical contact with the opposite terminals of a battery, means
on said support member for mounting and making electrical contact
with the battery terminals, wherein the improvement comprises the
provision of characteristically keyed slot means in said receptacle
means for receipt of complementary pronged plugs, said slot means
permitting entry thereinto by conventional pronged plugs but
insuring that the complementary pronged plugs used therewith cannot
enter into a conventional receptacle.
Description
The present invention relates to a receptacle arrangement which can
be quickly and securely mounted on a battery casing to facilitate
utilization thereof, and more particularly to a receptacle
arrangement of the character described which can be readily removed
from the battery casing for battery replacement purposes.
Although the battery-mounted receptacle arrangement of the
invention is illustrated and described in connection with
particular types of 6 -volt and 12 -volt batteries, it will be
apparent that the arrangement can be readily modified, within the
teachings of the invention, for other types, styles, and sizes of
batteries.
Various types of receptacles for installation on a battery or a
number of batteries have been known for many years, for example,
the U.S. Pat. to Kammerhoff No. 1,266,814. Battery receptacles of
this type, however, require excessive hardware both for mounting
and securing the receptacle arrangement on the battery and for
establishing electrical contact between the receptacles and the
battery terminal. Moreover, these and other types of battery
receptacles, for example, those disclosed in the U.S. Pat. Nos. to
Koch 1,983,037, Hautala 2,582,330, Hall 3,007027 and Knight
3,177,463 require specialized receptacle constructions and
specialized plug connectors which are not readily available. In
many cases, such as in the battery receptacles of U.S. Pat. Nos.
3,177,463 (supra) and 1,983,037 (supra) the receptacle arrangements
are not readily removable from the battery and must be discarded
when the batteries are worn out.
Other battery receptacle arrangements of known construction utilize
receptacle contacts which are unshielded, and care must be taken
that they do not undesirably contact an electrically conducting
component, when in use. This frequently necessitates the provision
of an electrically insulating shield or suitably spacing the socket
from the conducting parts with which it is to be associated. The
provision of such shield involves additional complexity and
manufacturing difficulty, while spacing the socket from adjacent
conductive components undesirably increases the bulk of the
receptacle and battery combination.
In many of these prior receptacle arrangements, it is necessary to
modify the casing or other structure of the battery. In the
present-day standardization of various battery sizes, this is
highly undesirable from a manufacturing point of view. Such
modification, moreover, increases the bulk or complexity of the
batteries in the first instance and usually complicates and
increases the size of the receptacle arrangement.
In other cases such as in U.S. Pat. No. 3,177,463 (supra) the
receptacle arrangement is configures such that portions of the
receptacle must extend into a cavity defined by a number of
batteries. That is to say, the last-mentioned receptacle
arrangement can only be used with a group of batteries, without
exposing the receptacle contacts.
In the foregoing references and in other receptacle arrangement,
the battery terminals usually are completely enclosed which renders
recharging of the battery difficult, in those cases where the
battery is of the rechargeable variety. Of course, prior receptacle
and battery combination can be recharged through the receptacle
itself, but as noted previously, specialized plug connectors are
required, instead of the usual alligator clamps furnished with
conventional battery-recharging apparatus.
In general, no prior receptacle and battery arrangement is
assembled solely through the use of the battery terminal means.
Instead, complicated and excessive hardware is employed in making
known battery and receptacle assemblies. The battery terminals
therefore are not accessible for direct connection by external
circuit components. This complicates the aforementioned
battery-recharging operation when used.
I overcome these deficiencies of the prior art by providing a
receptacle and battery assembly, in which the components are
assembled primarily through use of the battery terminals usually
provided with the battery. The manufacture of the receptacle
arrangement is considerably simplified in the first instance, and
only minimal labor is entailed in completing the receptacle and
battery assembly. Further, the receptacle arrangement can be
readily removed from the battery for replacement or recharging
purposes as desired. On the other hand, the battery terminals
remain accessible after assembly of the receptacle and battery
combination for connection to external circuitry, for example in a
battery-recharging operation with the receptacle arrangement
remaining attached to the battery.
My novel receptacle and battery arrangement can be assembled
without exposure of electrical contacts, without modifying the
conventional battery, and without unduly increasing the bulk of the
battery. More particularly, my novel receptacle arrangement is
adaptable for mounting on a variety of conventional battery sizes
and shapes, and moreover, utilizes conventional receptacle
structures, which in turn can be engaged by conventional plugs and
appliance cords. On the other hand, both the plug and receptacle
structure can be modified in a minor manner to prevent a
low-voltage appliance used with my novel receptacle and battery
combination from being inadvertently plugged into a high-voltage or
line voltage outlet.
My invention further contemplates a receptacle arrangement on which
one or more duplex or triplex receptacle structures can be mounted
in engagement with contact means forming part of the receptacle
arrangement and capable of quick-attach assembly to the battery
terminals. My receptacle and battery arrangement is admirably
suited for emergency lighting sources, and when provided with a 12
-volt battery is readily adaptable for use with most vehicular
emergency lighting systems or other emergency lighting systems
employing a source of similar voltage.
In a specific applicative embodiments, for example for use with
certain vehicular electric systems, I additionally provide means
forming part of the receptacle arrangement for quick-disconnecting
the receptacle arrangement from the attached battery to permit
energization only from the vehicle battery during that time in
which the vehicle ignition battery contains adequate potential.
Thereafter, warning lights or other appliances can be energized
directly from the attached emergency battery by the barest minimum
of circuit manipulation.
As an example of the last-described application, my invention can
be utilized with the electrical system of my copending application
entitled Safety Lighting System for Vehicles, filed Mar. 20, 1969,
Ser. No. 808,794, now abandoned.
I accomplish these desirable results by providing a receptacle
arrangement for mounting on a battery, said arrangement comprising
an insulating support, receptacle means mounted on said support,
conductors mounted on said support and electrically connected to
said receptacle means, said conductors being disposed for
electrical engagement with terminals respectively of said battery,
and cooperating means on said support and on said battery terminals
for securing said support to said terminals at a position of
electrical engagement of said conductors with said terminals
respectively.
I also desirably provide a similar receptacle arrangement wherein
said conductors are embedded in said insulating support.
I also desirably provide a similar receptacle arrangement wherein
said cooperating means include conductive members disposed to
engage said battery terminals respectively upon mounting said
insulating support thereon, and said conductors are secured to said
conductive members respectively in electrical contact
therewith.
I also desirably provide a similar receptacle arrangement wherein
said conductive members protrude through an upper surface of said
insulating support for engagement respectively with conductive
portions of said cooperating means, said conductive portions being
shaped for engagement with said terminals respectively for
electrically connecting said conductive members to said
terminals.
I also desirably provide a similar receptacle arrangement wherein
said receptacle means are arranged to accommodate at least three
electrical plugs, means for electrically connecting said conductors
in parallel respectively to related contacts of said receptacle
means, one of said electrical plugs being connected to an external
source of electrical potential, the remaining plugs being connected
to electrical appliances, said battery being capable of supplying a
similar potential, and quick-disconnect means for connecting at
least one of said conductors to the associated battery terminal so
that said battery can be electrically connected to said receptacle
means for emergency purposes in the event of failure of said
external source.
During the foregoing discussion, various objects, features and
advantages of the invention have been set forth. These and other
objects, features and advantages of the invention together with
structural details thereof will be elaborated upon during the
forthcoming description of certain presently preferred embodiments
of the invention and presently preferred methods of practicing the
same.
In the accompanying drawings I have shown certain presently
preferred embodiments of the invention and have illustrated certain
presently preferred methods of practicing the same, wherein:
FIG. 1 is an isometric view of one form of receptacle arrangement
shown in its mounted position on a battery;
FIG. 2 is a vertically sectioned view of the apparatus as shown in
FIG. 1 and taken along reference line II--II thereof;
FIG. 2A is a partial view generally similar to the related portion
of FIG. 2 but illustrating a conductor modification in accordance
with my invention;
FIG. 2B is a similar view of a modified form of securance means for
assembling my novel receptacle and battery combination;
FIG. 3 is a top plan view of another form of my novel receptacle
arrangement adapted here for use with differing sizes of
batteries;
FIG. 4 is a partial cross-sectional view of the apparatus as shown
in FIG. 3 and taken along reference line IV--IV thereof;
FIG. 5 is a top plan view of still another modification of my
receptacle arrangement;
FIG. 6 is a similar view of a further modification of my receptacle
arrangement; and
FIG. 7 is an elevational view illustrating an exemplary application
of my receptacle and battery combination.
With particular reference to FIGS. 1 and 2 of the drawings, my
receptacle and battery combination 10 includes a terminal-mounted
receptacle arrangement 12 formulated in this example from an
insulating support in the form of a plate 14 having a duplex
receptacle 16 or the like mounted thereon. The receptacle 16 can be
secured to the insulating support 14 by a pair of mounting bolts
18, and desirably is otherwise of conventional construction. In
this arrangement, contact blades 20 in plug openings 22 of the
receptacle 16 are electrically connected to conductors 24 extended,
in this example, from the receptacle casing through the insulating
plate 14 and thence along the underside thereof to the battery
terminal means. The conductors 24 are secured to the insulating
plate 14 by passage through closely fitted apertures 26 therein and
by their securance to the conductive members 24 described
below.
Alternatively, as described below in connection with FIG. 4, the
conductors can be embedded in the insulating plate 14, in
printed-circuit fashion or otherwise, in order to mount the
conductors on the insulating plate.
The outer ends of the conductors 24 are soldered, brazed, or
otherwise joined to a pair of conductive members or ringlets 28
(FIG. 2) embedded at apertures 29 therefor in the insulating plate
14. The ringlets 28 are so located on the plate 14 and are provided
with internal apertures 30 which are alignable respectively with
battery posts 32.
The plate 14 is mounted on battery 34 by inserting the battery post
32 through the ringlet apertures 30 until the outer periphery 36 of
the insulating plate engages a battery casing flange or lip 38
surrounding the terminal area of the battery. As the threaded
battery posts 32 project through the insulating plate 14, the
receptacle arrangement 12 can be secured to the battery 34 by a
pair of thumb nuts 40. Other cooperating securing means (e.g. as
shown in FIG. 2B) can be mounted on the support 14 and on the
battery terminals 32 for securing and electrically connecting the
support to the terminals.
The thumb nuts 40 conventionally include a conductive metallic
insert 42 (FIG. 2) which both threadedly engages the associated
battery post 32 and beamingly engages the surrounding conductive
ringlet 28 of the insulating support 14. An electrical conductive
path is thereby established from each battery post 32 through the
associated conductor 24 to the associated receptacle contact 20.
The thumb nuts 40, therefore, both retain the receptacle
arrangement 12 on the battery 34 and establish electrical contact
between the electrical components of the receptacle arrangement 12
and the battery posts 32.
Desirably, the periphery 36 of the insulator plate 14 is configured
similarly to the plan area of the battery 34, such that the
insulating plate 14 does not extend appreciably beyond the casing
lip or flange 38. Similarly, the receptacle 16 does not extend a
significant distance above the thumb nuts 40 (FIG. 2). In
consequence the receptacle arrangement 12 does not add appreciably
to the initial bulk of the battery 34.
The battery 34 may be of the conventional type having a dished top
surface 44 to accommodate common mounting hardware, such as the
screws 18 and nuts 45 for the receptacle 16. The dished surface 44
also permits the receptacle conductors 24 to be passed along the
undersurface of the insulating plate 14 without any possibility of
contacting the battery casing 46. If desired, insulating washers or
spacers 48 can be inserted over the battery posts 32 to bridge
substantially the gap between the casing 46 and the insulating
plate 14 in those areas respectively adjacent the battery posts 32.
When thumb nuts 40 are tightened upon the battery posts 32, little
or no bending forces can be applied to the insulating plate 14.
As apparent from the foregoing and from FIGS. 1-2, the receptacle
arrangement 14 can be readily installed on and removed from the
battery 34. Thus the battery 34 can be replaced without discarding
the receptacle arrangement 12. Similarly, the receptacle
arrangement 12 can be readily removed for battery-recharging
purposes or for some other, independent use of the battery 34, as
desired. Alternatively, the battery 34, if of the rechargeable
variety, can be recharged simply by removing the thumb nuts 40 and
attaching alligator clamps or similar connectors directly to the
protruding ends of the battery posts 32. As a further alternative,
the thumb nuts 40 can be removed and eyeletted conductors (not
shown) for external circuit means (not shown) can be slipped over
the protruding battery post 32 and the thumbscrews replaced to
operate an external circuit in parallel with the load device
plugged into the receptacle 16.
An alternative conductor arrangement is illustrated in FIG. 2A. The
eyelets 30 of FIG. 2 are omitted and the insulating plate 14' is
apertured at 50 for close-fitting insertion of the battery
terminals 32'. The receptacle conductors 24' are bent or eyeletted
at 52 as the case may be for close-fitting insertion over the
battery posts 32'. The eyelets 52 and conductors 24' are disposed
such that the battery terminals are inserted respectively
therethrough upon their substantially simultaneous insertion
through the support apertures 50. Insulators 48' isolate the
conductors 24' from the battery casing 46'. If desired, the
conductors 24' and eyelets 52 can be shellacked or otherwise
adhered to the undersurface of the insulating plate 14' to maintain
a proper alignment of the eyelets with the support apertures.
Alternatively, the conductors 24', particularly, if separately
insulated, can be maintained in their proper positions by their
passage through the insulating plate apertures 26' and by securance
of their eyeletted portions 52 to the battery posts 32'.
A modified form of securance means for assembling my receptacle and
battery combination 10" is shown in FIG. 2B. In the latter
arrangement the conductors 24" are each connected to a modified
conductive member or ringlet 51 securely positioned in the
insulating plates apertures 30" after the manner of ringlets 28 in
FIG. 2. In the instant modification, however, each of the
conductive members 51 is provided with means for frictionally
engaging the battery posts or terminals 32" respectively. Such
frictional means not only retains the insulating plate or support
14" on the battery 34", but simultaneously establishes a reliable
electrical contact between the battery terminals 32-, the
conductive members 51 and the receptacle conductors 24" secured
thereto. One form of such frictional means includes a number of
spring arms 53 which can be formed integrally with the conductive
member or ringlet 51, for example by lancing or stamping therefrom.
Retention of the engagement between the spring arms 53 and the
battery posts 32" is aided by the fact that the battery posts are
threaded in most cases. The conductive ringlets 51 can be
fabricated from a suitable, resilient structural material such as
brass or bronze with requisite electrical conductivity.
FIGS. 3 and 4 of the drawings illustrate another feature of the
invention involving an adaptation of a single receptacle
arrangement 54 to accommodate various battery sizes. In an
exemplary application, the receptacle arrangement 54 is shaped to
overlie lip or flange 56 at the top of battery 58. In this example,
the battery 58 is of the 12 -volt variety having terminals 60. A
triplex receptacle 62 or the like is secured to the insulating
plate 64 by means of mounting screws 66. Naturally, a duplex
receptacle such as that shown in the preceding figures can be
substituted. The insulating plate or support 64 is shaped to seat
flushly around the battery top flange or lip 56 to preserve the
compact nature of the receptacle and battery combination. As better
shown in FIG. 4, the receptacle 62 is provided with contacts 68
connected to conductors 70. The conductors 70 can be embedded, in
this example, on the top surface of the insulating plate 64, as by
printed circuit or similar techniques.
The insulating support or plate 64 is provided with a pair of
apertures 72 through which the battery posts 60 respectively
protrude when the receptacle arrangement 54 is mounted on the
battery 58. Each conductor 70 terminates in an annular member 74
surrounding the associated insulating plate aperture 72. The
conductors 70 are secured to the annular conductive member 74 by
soldering or brazing or by fabricating the annular member 74 and
the conductors 70 integrally. The annular members 74, likewise are
recessed or embedded in the top surface of the insulating plate 64.
As shown in FIG. 4, tapped metal inserts 42' of the thumb nuts 40'
engage both the annular conductive members 74 and the battery posts
60 for reliable electrical contact. Alternatively, the conductors
70 and annular members 74 can be embedded or otherwise disposed on
the underside of the insulating plate 64. As a further alternative,
the thumb nuts can be omitted in favor of the quick-attach ringlets
51 of FIG. 2B.
In order to adapt the receptacle arrangement 54 to a different size
battery, for example a 6 -volt battery denoted by chain outline 76
thereof, a second pair of insulating plate apertures 78 are
suitably spaced therein to accommodate terminal posts 80 of the
different size battery 76. The auxiliary insulating plate apertures
78 likewise are surrounded, in this example, by embedded annular
conductor members 82 which are electrically connected to the
adjacent portions of the conductors 70. Here again, the annular
conductor members 82 can be formed integrally with the balance of
the conductors 70 after the manner of FIG. 2A.
As shown in FIGS. 3, the outer end portions 65 of the insulating
plate 64 can, if desired, be broken off when the insulating plate
is utilized with the smaller sized battery 76. In furtherance of
this purpose, a row of perforations 81, or other preferentially
weakening means, can be formed in the insulating support or plate
64 in conformance with each end of the smaller batter 76.
In the battery and receptacle combination of FIGS. 3 and 4, the
contacts 68 of the receptacle 62 are electrically connected to the
battery posts 60 or 80 irrespective of whether the receptacle
arrangement 54 is mounted on the battery 58 by protruding its
terminals 60 through the insulating support 64 securing with thumb
nuts 40', or on the different size battery 76 by protruding its
terminals 80 through the support 64 and securing with thumb nuts
40" (FIG. 4).
In FIG. 5, another form of my novel receptacle arrangement 84 is
shown with modified receptacle structures. In this modification, a
pair of duplex receptacles 16' are connected in parallel to posts
60' of battery 58' by means of eyeletted conductors 86. Eyelet
portions 88 of the conductors 86 surround suitably placed apertures
in insulating plate or support 90 through which the battery
terminals 60' project for securance of the insulating receptacle
plate 90, for example by means of the thumb nuts shown in the
preceding figures. Although the conductors 86 and annular
conductive members 88 are shown as supported on the top insulating
plate surface, these conductive members can be formed in accordance
either with FIGS. 2, 2A, 2B, or 4 of the drawings.
Each conductor 86 is electrically connected, as shown in FIG. 5, to
an associated pair of receptacle contacts of each duplex receptacle
16'. Alternatively, two or more triplex receptacles, such as the
receptacles 62 in FIG. 3, can be substituted. Similarly one or more
single-type receptacles (not shown) can be substituted for the
illustrated duplex or triplex receptacles.
In FIG. 6, receptacle arrangement 92 mounted on battery 94 includes
insulating plate 96 shaped similarly to that shown in FIGS. 1-2. A
triplex receptacle 62' or the like is mounted on the insulating
plate 96. The receptacle 62' is similar to that shown in FIG. 3
except that at least one opening of each receptacle can be keyed at
98 to accept a similarly keyed appliance plug (not shown). Thus, an
appliance adapted for relatively low battery voltage cannot be
plugged into a house wiring circuit or other high-voltage circuit
that may use similar receptacles. The receptacle 62' is connected
to insulating plate conductors 100 which in turn are connected to
battery posts 102 protruding through aperture means in the
insulating support or plate 96. The several components of the
receptacle arrangement 92 can be assembled and secured to the
battery 94 in accord with the teachings of any of the preceding
figures.
FIG. 6 illustrated a further feature of my invention in that a
single-pole, single throw switch means such as toggle switch 104
can be connected in one of the conductors 100. This provides
energization and deenergization of external electric appliances,
such as the light fixtures shown in FIG. 7, without withdrawing the
appliance plugs from the receptacle 62'. It is also contemplated
that a similar function can be provided by any of the other
receptacle arrangements illustrated herein by removing one of the
thumbscrews 40 or other securance means and springing the adjacent
end portion of the insulating plate sufficiently upward to withdraw
the associated battery post. The insulating plate then can be
angularly displaced about the other battery post whereupon the
undersurface of the insulator plate will rest upon the withdrawn
battery post at a point removed from the adjacent receptacle
conductor.
My novel receptacle and battery combinations as shown herein and
their reasonable equivalents are useful in a wide variety of
applications, particularly those wherein it is desired to energize
two or more electric light fixtures or other appliances from a
single battery.
The receptacle and battery combinations are also useful in
connection with emergency and/or warning lighting systems, for
example that illustrated in FIG. 7. Although the FIG. 7
organization utilizes the receptacle arrangement of FIG. 6, it will
be understood that others of my illustrated receptacle arrangements
can be so used, depending upon the number of plug outlets desired.
In the arrangement of FIG. 7, the triplex receptacle 62' is
connected to the electrical system of vehicle 106, through cord
108. The vehicle 106 can be provided with my novel warning light
system as described and claimed in my aforementioned copending
application. In such case, the extension cord 108 is doubly
plug-ended for contacting both the receptacle 62' and the vehicle
outlet receptacle 110, which is in turn connected to the vehicle
electric system as set forth in my aforementioned application.
Assuming the vehicle 106 to be stalled or otherwise parked along a
roadway for repair work or the like, a pair of light fixtures 112,
114 can be electrically connected to the triplex receptacles 62' by
means of their conventional plug-ended appliance cords 116. The
light fixtures 112, 114 can be directed forwardly and rearwardly of
the vehicle 106 along the roadway for warning oncoming traffic
under nighttime conditions. Alternatively, one or both of the light
fixtures 112, 114 can be employed as a trouble light. Other
appliances, such as power tools (not shown), can be plugged into
the receptacle 62' along with or in place of one or both of the
light fixtures. As shown in my aforementioned copending
application, an overhang warning light 118 can also be plugged into
the vehicle receptacle 110. Alternatively the overhang light 118
can be connected to the receptacle 62'.
Additional receptacles can be provided, as required, in conjunction
with the receptacle arrangement 92 FIG. 7, after the manner of FIG.
5.
The receptacle arrangement 92 of FIG. 7, as described thus far,
serves as a convenient connection point for a plurality of
electrical appliances, as the several outlets of the triplex
receptacle 62', or the like, are energized in parallel from a
single point or outlet of the vehicle electric system or other
electric system. Thus, a multiple electrical connection is afforded
at a single point connection in the vehicle electrical system for
operation from the vehicle battery. During such operation, switch
104 of the receptacle arrangement 92 can be switched off to
conserve the battery 94 of the receptacle and battery combination
for emergency or other subsequent use. In the absence of a switch
104, as when using any of my novel receptacle arrangement as
illustrated in FIGS. 1-5, one of the battery terminals can be
withdrawn from the insulating plate 96, which can then be swung
slightly aside about the other battery terminal as described above,
to disconnect temporarily the battery 94.
When the vehicle battery commences to run down, or when it is
otherwise no longer desirable to use the vehicle battery, the
receptacle arrangement switch 104 is switched on to supply the
electric appliances such as light fixtures 112, 114 from the
emergency battery 94 instead of the vehicle battery, or other
source of electric potential. At this time, one of the plugs of
extension cord 108 can be removed from its respective receptacle.
Naturally, it is contemplated that the potential of battery 94 will
be the same as that of the vehicle battery or other potential
source supplying the electric system with which my novel receptacle
and battery arrangement is used.
From the foregoing it will be apparent that novel and efficient
forms of battery-mounted receptacle means have been described
herein. While I have shown and described certain presently
preferred embodiments of the invention and have illustrated
presently preferred methods of practicing the same it is to be
distinctly understood that the invention is not limited thereto but
may be otherwise variously embodied and practiced within the spirit
and scope of the invention.
* * * * *