U.S. patent number 3,673,546 [Application Number 05/030,126] was granted by the patent office on 1972-06-27 for electrical connectors.
Invention is credited to John L. Green, Robert Nelson.
United States Patent |
3,673,546 |
Green , et al. |
June 27, 1972 |
ELECTRICAL CONNECTORS
Abstract
Means for establishing electrical connection selectively between
coaxial electrical connectors having similar or different coupling
end configurations comprises a plurality of adapters each having
first and second coupling ends, the first coupling end of each
adapter being such that it can matingly engage the coupling end of
a respective one of the said electrical connectors, and the second
coupling ends of all the adapters being of the same internally
threaded configuration, and a conductive coupler having an external
threaded configuration fitting with both adaptors and conductor
ends that can matingly engage the conductors of each of the
adapters.
Inventors: |
Green; John L. (Harlow, Essex,
EN), Nelson; Robert (Harlow, Essex, EN) |
Family
ID: |
21852650 |
Appl.
No.: |
05/030,126 |
Filed: |
April 20, 1970 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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706488 |
Feb 19, 1968 |
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Current U.S.
Class: |
439/172; 439/675;
439/579 |
Current CPC
Class: |
H01R
24/542 (20130101); H01R 2103/00 (20130101) |
Current International
Class: |
H01R
13/00 (20060101); H01R 13/646 (20060101); H01r
013/54 () |
Field of
Search: |
;339/47-49,89,177 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: McGlynn; Joseph H.
Parent Case Text
This is a continuation-in-part of our copending application Ser.
No. 706,488 filed Feb. 19, 1968 for Electrical Connectors, now
abandoned.
This invention relates to electrical connectors of the coaxial
type, and it contemplates a readily assembled and detachable
connector assembly whereby may be effected the efficient and rapid
joining of any two similar or differing coupling faces with a
common coupler link so that any two cables or electrical circuits
to be joined together when they have been terminated in similar or
differing electrical connectors.
More specifically the invention contemplates a kit or collection of
coaxial adaptor components having the same or different coupling
faces at one end but all having identical coupling formations at
the other end, so that any one of the adaptor components may be
readily assembled to or detached from any other adaptor component,
using the same common coupler link, and this is a major object of
the invention.
By virtue of this invention the number of coupling assemblies of
standard design required to allow inter linking of any given number
of coupling faces is reduced. For example, if facilities had to be
provided for the random linking of any ten different coupling
faces, to ensure complete coverage there would have to be available
45 different standard types of assemblies (permutating any two
coupling faces from a possible 10). By use of this invention the
same coverage could be achieved by adaptors having ten coupling
faces each with a common rear face for being coupled together by a
common coupler link. In practice a kit containing fifty different
coaxial interfaces is available, any two being connected by the
same coupler, and this makes available over 1,300 different
possible adaptor assemblies.
A more specific object of the invention is to provide an assembly
wherein two electrical adaptor connectors of the coaxial type
having similar or different coaxial end face configurations are
secured together by mutual threaded connection with a common
coupler containing an axially fixed conductor that is automatically
electrically connected during assembly to axially fixed conductors
in the respective adaptor connectors.
Claims
What is claimed and desired to be secured by Letters Patent is:
1. A three component connector assembly for establishing electrical
connection between two electrical fittings having similar or
different coaxial conductor coupling end configurations, comprising
two coaxial conductor adaptors each having first and second
coupling ends, the first coupling end of each adaptor having a
coaxial conductor structure and arrangement such that it can
selectively detachably matingly engage the coupling end of a
respective one of the said electrical fittings, and the second
coupling ends of all the adaptors being of the same coaxial
conductor configuration, and a conductive coaxial conductor coupler
disposed between the second coupling ends of said adaptors, said
coupler comprising means coacting with means on said second
coupling ends for securing said adaptors together in end abutment
and in surrounding relation to said coupler.
2. The connector assembly defined in claim 1, wherein said coupler
comprises an externally threaded member mounting an insulated
central conductor that is substantially identical at both ends, and
said second coupling ends of the adapters being internally threaded
bores receiving the coupler and mounting insulated socket means
slidably receiving said coupler conductor ends.
3. A three component connector assembly for establishing electrical
contact between two coaxial conductor electrical cables or the like
having electrical fittings provided with coaxial conductor coupling
end configurations comprising an externally threaded coupler, means
mounting an axially fixed insulated solid metal inner central
conductor therein, and two end adaptors each having one end
similarly detachably threadedly attached to said coupler, means
providing the other ends of said adaptors with coaxial conductor
structure for detachably coupling them with the associated
fittings, means mounting axially fixed outer insulated central
conductors in said adaptors, the outer ends of said inner conductor
being of similar configuration and circular cross-section, and the
inner ends of each of the outer conductors being of similar
flexible socket configuration for engaging said inner conductor
whereby the conductors are assembled in aligned contact upon
threaded assembly of the coupler and adaptors and whereby any of a
series of adaptors having said similar inner end configurations and
any outer end configurations suitable to the electrical fitting
associated therewith may be incorporated in the connector
assembly.
4. The connector assembly defined in claim 3, wherein said coupler
comprises an annular outer conductor member externally threaded
from end to end, and said adaptors comprise outer conductor shells
that abut tightly in a planar face when mounted with said
coupler.
5. The connector assembly defined in claim 3 wherein said coupler
comprises an externally threaded annular outer conductor member,
annular solid insulation means fixed within said member, and a
central conductor axially fixed to said insulation means midway
between its ends and comprising similar opposed prongs, said
insulation means having outwardly open bores in surrounding spaced
relation to said prongs and adapted to slidably receive the
flexible socket inner ends of the adaptor conductors.
6. A connector assembly for establishing electrical contact between
any of a plurality of different coaxial electrical cables or the
like having different coupling end configurations comprising an
externally threaded coupler, means mounting an axially fixed
insulated inner central conductor therein, and two end adaptors
each detachably threadedly attached to said coupler, means mounting
axially fixed outer insulated central conductors in said adaptors,
the outer ends of said inner conductor being of similar
configuration and circular cross-section, and the inner ends of
each of the outer conductors being of similar configuration whereby
the conductors are assembled in aligned contact upon assembly of
the coupler and adaptors and whereby any of a series of adaptors
having said similar inner conductor end configurations and any
outer end configurations suitable to the cables to be connected may
be incorporated in the connector assembly, said coupler comprising
an externally threaded annular outer member, annular solid
insulation means fixed within said annular member and a central
conductor axially fixed to said insulation means midway between its
ends and comprising similar opposed prongs extending in radially
spaced relation to said insulation means, and each of said adaptors
comprising a conductor shell mounting annular insulation means and
having an internally threaded inner end bore inwardly of said
insulation means for attaching it to said coupler component, and a
central conductor axially fixed to the insulation means of said
shell having a resilient socket end extending through said threaded
end bore, said adaptor insulation means comprising a plurality of
annular bodies axially confining an enlarged flange on the
associated conductor, and a retainer ring axially holding said
bodies in the shell.
Description
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is an elevation showing a coupling of the invention
according to a preferred embodiment;
FIG. 2 is an exploded view in section showing the coupling
components in aligned ready to assemble position;
FIG. 3 is a section showing the parts of FIG. 2 in assembly;
and
FIGS. 4 and 5 are end views substantially on lines 4--4 and 5--5 of
FIG. 2 showing structure detail of components.
PREFERRED EMBODIMENTS
An electrical connection coupling of the invention shown in the
drawings comprises three coaxial coupling components, two end
adaptor components 11 and 12 and a central coupler component
13.
End coupling components 11 comprises a relatively rigid hollow
member of shell 14 having a cylindrical inner wall 15, an
internally threaded end bore 16 providing for connection to another
component at one end, and a pair of 180.degree. apart external
bayonet pins 17 providing for connection to another component or
fitting at the other end.
At one end of wall 15, an annular internal rib 18 is provided and
formed with an annular flat face 19 normal to the coupling axis. An
annular body 21 of electrically insulating material such as solid
polytetrafluoroethylene has an external cylindrical surface 22
snugly confined by shell wall 15 and a flat annular face 23 seated
on rib face 19.
Insulating body 21 has a reduced external diameter projection 24
extending from face 23 outwardly to the adjacent open end of shell.
As shown the outer surface 25 of projection 24 has a smooth
converging taper toward an annular end surface 26. The internal
surface 27 of shell 14 surrounding projection 24 has a smooth
diverging taper toward annular end surface 28. Internally block 21
throughout its length including projection 24 has a uniform
diameter cylindrical bore 29.
A metal conductor 31 has a cylindrical section 32 snugly fitted in
bore 29, and conductor 31 is formed with an enlarged flange 33
having a flat annular face 34 seated against the flat end face 35
of body 21.
A second body 36 of the same insulating material has a cylindrical
surface 37 fitted snugly within shell wall 15, and a flat inner
surface 38 flushly seating on surface 35 of the first body.
Insulation body 36 has a counter bore 39 fitting over conductor
flange 33, and is formed with a bore 41 of the same diameter as
bore 29 which snugly receives conductor section 32. At the end of
section 32, conductor 31 has a reduced inner section 42 that
extends through a bore 43 of the same diameter in body 36. Annular
radial surface 44 of body 36 abuts a corresponding surface 45 on
the conductor.
At the inner end of the threaded bore 16, shell 14 is formed with a
cylindrical wall 46 of greater diameter than wall 15, and an
annular metal retainer ring 47 is press fitted into the bore formed
by wall 46 into abutment with insulator body 36.
Thus, as shown in FIG. 2, insulator bodies 21 and 36 are axially
fixed within the shell between rib 18 and retainer ring 47, and
since flange 33 is in axial abutment with both insulator bodies
conductor 31 is fixed axially in shell 14.
When ring 47 is removed, the conductor 31 and both insulator bodies
21 and 36 may be removed. The outer end of central conductor 31,
which is coaxial with and insulated from shell 14, is
longitudinally slitted so as to provide an expansible hollow
resilient socket 48 adapted to receive a connecting prong (not
shown). Similarly the inner end of conductor 31 is a longitudinally
slitted hollow expansible resilient socket 49 adapted to receive a
conductor end as will appear.
The other end coupling component 12 comprises a relatively rigid
metal hollow member or shell 51 having at its inner end an
internally threaded bore 52, at the inner end of which is a
cylindrical wall 53 wherein is press-fitted a retainer ring 54
abutting the outer end of an annular body 55 of electrically
insulating material. Body 55 abuts a second annular body of
insulating material 56 that has its inner end seated in the flat
radial surface 57 of an internal rib 58. Both insulator bodies are
snugly surrounded by internal cylindrical shell wall 59.
A central conductor 61 has its intermediate cylindrical section 62
snugly fitted in cylindrical bores 63 and 64 of the respective
insulator bodies, and it has an annular flange 65 axially extending
snugly within an annular recess 66 formed within one of the bodies.
Also conductor 61 has an inner reduced diameter section 67
extending through a corresponding reduced bore 68 in body 55, and
the conductor axially abuts insulator body 55 at the radial surface
indicated at 69. Thus retainer ring 54 axially fixes both insulator
bodies and the central conductor within shell. 51. When ring 54 is
removed conductor 61 and insulator bodies 55 and 56 may be
removed.
The inner end of conductor 61 is a longitudinally slitted hollow
expansive resilient socket 71, and similarly the outer end of
conductor 61 is a longitudinally slitted hollow expansible
resilient socket 72. Both sockets terminate within the shell
51.
The outer end of shell 51 is externally threaded at 73 for
attachment to another fitting (not shown).
Coupling component 13 comprises an annular metal member 74 having
an externally threaded periphery 75 and a central cylindrical wall
76. Within the bore defined by wall 76 two annular insulator bodies
77 and 78 are mounted in end abutment, and an internal annular
recess 79 is formed at the inner end of body 77. The insulator
bodies are axially fixed by integral annular lips 81 and 82 turned
over their outer edges at the ends of the bore.
A solid metal central conductor 83 extends through aligned bores 84
and 85 of the insulator bodies, and an enlarged conductor flange 86
extends into recess 79 to be axially clamped between the insulator
bodies.
The opposite ends of conductor 83 are cylindrical and of the same
diameter and length on the opposite sides of flange 86 with
slightly tapered rounded terminals and this provides axially fixed
end prongs 87 and 88 which, as shown in FIG. 2, are equally
radially spaced from the surrounding bores 84 and 85
respectively.
FIG. 3 shows the components of FIG. 2 in assembled position. This
assembly is made by engaging the externally threaded configuration
of coupler component 13 within the identical internally threaded
ends 16 and 52 of the adapter components. When the assembly is
turned tight the outer shells 14 and 51 engage tightly on a planar
interface 50 that is normal to the coupling axis, and coupler 13 is
entirely enclosed and axially fixed between the adaptors. Prongs 87
and 88 enter the resilient sockets 49 and 71 respectively with
relative rotation as the assembly takes place. The axial dimensions
are such that the respective insulator bodies are in substantial
end to end contact throughout the assembly.
From the foregoing it will be seen that the assembly of FIG. 2
comprises an electrical connector having different coaxial faces at
opposite ends, and any one of the adaptors 11 or 12 may be replaced
by an adaptor having the same internally threaded bore
configuration and a different coaxial interface suitable for rapid
interconnection to an associated coaxial cable terminal. Only two
different outer end adaptor faces are shown but only necessary
number is possible as above indicated.
The invention may be embodies in other specific forms without
departing from the spirit or essential characteristics thereof. The
present embodiments are therefore to be considered in all respects
as illustrative and not restrictive, the scope of the invention
being indicated by the appended claims rather than by the foregoing
description, and all changes which come within the meaning and
range of equivalency of the claims are therefore intended to be
embraced therein.
* * * * *