U.S. patent number 3,584,213 [Application Number 04/782,583] was granted by the patent office on 1971-06-08 for frustoconical trouble light with in-line outlet box.
Invention is credited to Jack A. Meltzer.
United States Patent |
3,584,213 |
Meltzer |
June 8, 1971 |
FRUSTOCONICAL TROUBLE LIGHT WITH IN-LINE OUTLET BOX
Abstract
A trouble light having a substantially frustoconical guard
containing a correspondingly shaped reflector which engages frame
members in a snap-in snap-out manner so as to be removable and
positionable. Circumferential frame members each have a
discontinuity to provide shock resistance. The trouble light power
cord is provided with an intermediate outlet connection box which
may have a plurality of outlets arranged in conventional form or in
opposed pair form when there are four outlets.
Inventors: |
Meltzer; Jack A. (Oceanside,
NY) |
Family
ID: |
25126513 |
Appl.
No.: |
04/782,583 |
Filed: |
December 10, 1968 |
Current U.S.
Class: |
362/295; 362/378;
439/650; 439/893; 439/505; 439/476.1 |
Current CPC
Class: |
F21L
14/00 (20130101); F21L 14/02 (20130101); F21V
17/00 (20130101); F21V 15/02 (20130101) |
Current International
Class: |
F21V
17/00 (20060101); F21L 14/02 (20060101); F21L
14/00 (20060101); F21v 015/00 () |
Field of
Search: |
;240/54,54.2,102,102.1,102.2,8.18,92,103 ;339/27,157 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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331,455 |
|
Jul 1930 |
|
GB |
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334,001 |
|
Aug 1930 |
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GB |
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Primary Examiner: Matthews; Samuel S.
Assistant Examiner: Mathews; Alan
Claims
What I claim is:
1. An electric light comprising:
a. a power cord, said power cord connecting between a power source
and a light bulb socket;
b. a shock-resistant handle, said shock-resistant handle enclosing
said light bulb socket and a switch therefor;
c. a guard of substantially frustoconical shape, said guard being
clamped to said shock-resistant handle, and having an open top
portion at the larger end of the frustum opposite the smaller end
thereof which is clamped to said handle, said guard comprising:
i. a circular clamp member;
ii. a plurality of substantially straight wire members, each of
said straight wire members extending upwardly and outwardly from
said circular clamp member at spaced intervals thereabout; and
iii. a plurality of circular wire members, each of said circular
wire members being joined in spaced vertical intervals to said
straight wire members; and
d. hemifrustoconical reflector means disposed within said guard for
removably snapping between any opposed pair of said straight wire
members.
2. An electrical light in accordance with claim 1, wherein:
a. one of said straight wire members extends upwardly and outwardly
beyond the others and is formed into a partial loop to form a
hinging hook.
3. An electrical light in accordance with claim 1, additionally
comprising:
a. an electrical outlet box, said electrical outlet box being
connected to said power cord intermediate its ends.
4. An electrical light in accordance with claim 3, wherein:
a. said electrical outlet box having two pairs of said outlets,
said pairs being in opposed, vertical sidewalls of said electrical
connection box.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
Portable lamps having a plug-in power cord, generally referred to
as trouble lights.
2. Description of the Prior Art
Prior hereto, virtually all trouble lights known to applicant have
comprised an enclosure having a hinged door for access to the light
bulb contained within. The enclosure has been substantially
cylindrical with closed top and bottom members. The door occupied a
substantial portion of the enclosure and a reflector was
permanently positioned within the enclosure opposite the door.
SUMMARY OF THE INVENTION
Accordingly, the present invention provides a novel and useful
trouble light which completely eliminates the hinged door of
previous trouble lights and which provides a flexibility of use
hitherto unknown.
The present invention further provides a trouble light guard
notable both for its economy of manufacture and for its great
resistance to mechanical shock.
The present invention additionally provides a trouble light having
an accessory outlet box located intermediate of the power cord.
Briefly, and not by way of limitation, the present invention
provides a trouble light having a light bulb guard which is
substantially frustoconical in shape, being made of formed welded
wires some of which extend longitudinally and some of which extend
circumferentially. The circumferential wires have their respective
ends abutting but not joined. The guard is fully open at the large
end of the frustum for ready access to the light bulb within. The
smaller end of the frustum is provided with a clamp for securing
the guard to a shockproof handle which contains a switch. The power
cord has located intermediate its ends an outlet box which may be a
two or four outlet design but which is preferably a four outlet box
with oppositely opposed outlet pairs.
A reflector, which may be substantially hemifrustoconical in shape,
is removably secured to the guard in a snap-in snap-out manner.
It is a notable advantage of the present invention that the unique
shape of the guard permits the use of large light bulbs such as the
300 watt size.
FIG. 1 is a pictorial view of the frustoconical trouble light with
outlet box of the present invention.
FIG. 2 is a side view of the trouble light portion of the present
invention.
FIG. 3 is a cross-sectional view taken across line 3-3 of FIG. 2,
but without the light bulb.
FIG. 4 is an exploded pictorial view showing the guard and
reflector portions of the present invention.
FIG. 5 is a partial cross-sectional view of a two outlet box
connected to the power cord in accordance with the present
invention.
FIG. 6 is a top view of a four outlet connection portion in
accordance with the present invention.
FIG. 7 is a top view of a four outlet opposed pair connection box
in accordance with the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION
Referring to the drawing, the frustoconical trouble light with
outlet box of the present invention comprises a power cord 10
connecting between a plug 12 and a handle 14 of the trouble light.
Handle 14 encloses a standard electric switch 16 and a threaded
socket for a light bulb, the threaded socket being located opposite
the entrance point of power cord 10.
Handle 14 is provided with an annular flange 18 which surrounds the
light bulb socket and which provides a surface about which a clamp
ring 20 may be removably secured.
Attached to clamp ring 20, as by welding or the like, are a
plurality of wire rod frame members 22 which extend upwardly and
flare outwardly therefrom to define a substantially conical shape.
A plurality of circumferential wire rings 24 are provided at spaced
intervals and are attached, as by welding, to longitudinal wire
rods 22, the uppermost ring 24 being attached near the tops of
longitudinal rods 22 preferably on the inside thereof. The plane of
each wire ring 24 is disposed perpendicularly to the axis of the
cone; the entire guard 32 thereby formed defines a frustum of the
cone.
Each wire ring 24 has its respective ends in abutting relationship
where they meet but are not joined to provide a great degree of
flexibility and give, both important to the shock resisting and
absorbing functions of the wire guard.
One of said longitudinal rods 22 may extend upwardly and be looped
to form a hinging hook 26.
A reflector 30 may be formed of sheet metal to fit within the
frustoconical guard 32. It is preferred that reflector 30 cover
approximately one-half of frustoconical guard 32; the preferred
shape of reflector 30 is accordingly substantially
hemifrustoconical.
In the preferred form of the invention, guard 32 is provided with
four longitudinal rods 22 equally spaced to form quadrants.
Reflector 30 is accordingly adapted to fit against any opposed pair
of longitudinal rods 22 as may clearly be seen in FIG. 3. Since
reflector 30 is flexible, it may be snapped into guard 32 and
similarly snapped out of guard 32.
Power cord 10 has located intermediate its ends a connection box 40
which may be provided with two outlets in standard electrical
connection. Alternatively, a four outlet connection box 42 may be
provided which has all four outlets located in the upper surface of
the outlet box. Preferably, however, it is proposed that an outlet
box 44 be provided having four outlets arranged in opposed
vertically oriented sidewall pairs as is shown in clear fashion in
FIG. 7. The advantages of such a box are clear. Outlet boxes 40 and
42 when placed flat on the ground require an upward outcropping of
accessory wires and plugs, all adapted to trip the unwary.
Applicant's proposed opposed pair sidewall outlet box 44 when
placed flat on the ground permits accessory wires and plugs to run
horizontally close to the ground and safely out of harm's way.
While the foregoing is illustrative of preferred embodiments of the
invention, it is clear that other embodiments and modifications may
be had within the broad teachings of the disclosure and the scope
of the claims.
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