U.S. patent number 3,905,667 [Application Number 05/463,756] was granted by the patent office on 1975-09-16 for shorting plug for an integrating circuit socket.
This patent grant is currently assigned to Aries Electronics, Inc.. Invention is credited to David J. Crimmins, William Y. Sinclair.
United States Patent |
3,905,667 |
Crimmins , et al. |
September 16, 1975 |
Shorting plug for an integrating circuit socket
Abstract
A low profile shorting plug for interconnecting two contacts for
an integrated circuit socket includes an elongated housing made of
electrically insulated material having an opening in which is
disposed a U-shaped electrically conductive pin, with the leg
portions of the pin extending perpendicular to the longitudinal
axis of the housing in order to engage two opposed contacts of an
integrated circuit socket for effecting shorting of such contacts.
In addition, formed integral with the elongated housing, and
extending from the opposite surface of the housing to the leg
portions of the metallic pin is a pair of spaced insulated storage
ears which may also be inserted into two opposed contacts of an
integrated circuit socket for storage of the shorting plug when not
in use.
Inventors: |
Crimmins; David J. (Stockton,
NJ), Sinclair; William Y. (Frenchtown, NJ) |
Assignee: |
Aries Electronics, Inc.
(Frenchtown, NJ)
|
Family
ID: |
23841252 |
Appl.
No.: |
05/463,756 |
Filed: |
April 24, 1974 |
Current U.S.
Class: |
439/511 |
Current CPC
Class: |
H01R
13/60 (20130101) |
Current International
Class: |
H01R
13/60 (20060101); H01R 13/00 (20060101); H01R
031/08 () |
Field of
Search: |
;339/19,38,222 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
|
645,795 |
|
Nov 1950 |
|
GB |
|
531,232 |
|
Jul 1955 |
|
IT |
|
Primary Examiner: Lake; Roy
Assistant Examiner: Bicks; Mark S.
Attorney, Agent or Firm: Casella, Esq.; Anthony J.
Claims
What is claimed is:
1. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket comprising:
an elongated housing made of an insulated material having an
opening extended along the longitudinal axis thereof, which housing
includes an upper surface and a lower surface;
a U-shaped metallic pin disposed in the opening of said elongated
housing and extending from the lower surface and having its leg
portions perpendicular to the longitudinal axis of said housing;
and
a pair of spaced insulated storage ears extending from the upper
surface of the housing, with the spacing and size of said storage
ears being substantially equal to the spacing and size of said leg
portions of said U-shaped metallic pin whereby either the leg
portions of the U-shaped metallic connecting pin or the storage
ears may be inserted into two contacts of an integrated circuit
socket.
2. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket as in claim 1 wherein the storage ears
are formed integral with said elongated housing.
3. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket as in claim 2 wherein said elongated
housing is made of Nylon.
4. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket as in claim 1 wherein the elongated
housing includes internal shoulders against which the metallic pin
is maintained.
5. A low shorting plug for interconnecting to contacts of an
integrated circuit socket comprising:
an elongated housing made of an insulated material having an
opening extending along the longitudinal axis thereof, said
elongated housing further including an upper surface and a lower
surface, with a pair of integral, spaced insulated storage ears
extending from the upper surface of the housing; and
a U-shaped metallic connector pin disposed in the opening of said
elongated housing and having spaced leg portions extending from the
lower surface of the housing perpendicular to the longitudinal axis
thereof, with the spacing and size of said storage ears being
substantially equal to the spacing and size of said leg portions of
the U-shaped metallic connector pin, whereby either said leg
portions or said storage ears may be inserted into two contacts of
an integrated circuit socket.
6. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket as in claim 5 wherein the housing and
integral storage ears are made of Nylon.
7. A low profile shorting plug for interconnecting two contacts of
an integrated circuit socket as in claim 5 wherein the elongated
housing includes side walls disposed between the upper and lower
surfaces thereof, each of which side alls includes an elongated
slot therein extending perpendicular to the longitudinal axis of
the elongated housing.
Description
BACKGROUND OF THE INVENTION
This invention relates to shorting plugs for use with integrated
circuits sockets, and more particularly, a low profile shorting
plug having means for storage of the plug when not in use.
Miniturized circuits have been in use for some time and are
employed on an ever-increasing scale in complex electronic
equipment. The practices in the technology have evolved such that
it is now common practice to use what has become known as
integrated circuits, or physically small units contained an entire
circuit (rather than a single electric terminal), and to mount
these integrated circuit packs or units to printed circuit boards
and the like. It was early practice to solder the electrical
contacts or terminals of these integrated circuits directly to
points on the integrated circuit board. In other cases the
electronic packs were mounted directly to a dielectric board with
terminals extending through the board for connection to other
conductors.
Through a gradual evolutionary use of these techniques, it is now
more common and desirable to mount electronic integrated circuit
units to a terminal board or printed circuit board for easy removal
and exchanging of individual units. Accordingly, sockets are now
often provided for receiving the pins (contacts) ot the integrated
circuit pack. These sockets generally include a dielectric housing
supporting electrical contacts for receiving the pins of the
integrated circuit packs, the contacts having long pins, or posts,
extending from the lower part of the housing for insertion through
holes in the printed circuit board. When the socket is mounted in
place on the circuit board, the terminal posts extend to the back
side of the printed circuit board, providing posts for receiving a
wrapped wire or other common type of conductor connection for
joining the integrated circuit to other components on the same or
other circuit boards.
During the assembly of a printed circuit board including sockets
and integrated circuit packs, it is often desirable to conduct
preliminary tests. For certain tests it is often necessary to
effect the shorting of certain contacts of the various sockets in
the circuit board assembly. Realizing the size of the miniturized
elements in a circuit board, it is apparent that a single shorting
plug for interconnecting two contacts of an integrated socket is of
very small size, and not readily manually manipulated. Furthermore,
when the shorting plug is removed, and placed at a location near
the technician's station, it often happens that the shorting plugs
become dirty, misplaced, etc. In addition, during the assembling of
an integrated circuit panel board, it is often necessary to employ
shorting plugs which remain in place, and in order to maintain
miniaturization of the overall panel board, it is particularly
desirable that the shorting plug have a low profile, and of course
because of the miniaturazation required, it is difficult to achieve
the low profile, while still providing a shorting plug that is
capable of being manually handled by the technician or assembler of
the integrated circuit panel board.
Accordingly, there are several attributes considered desirable in a
shorting plug including: the ease of replacement of shorting plugs;
means for storing the shorting plug when not in use; and having the
shorting plug of a configuration which provides a low profile. It
is an object of the present invention to provide all of these
attributes in a single shorting plug, and to this end, to obviate
the shortcomings of the prior art devices to satisfy one or more of
these requirements.
SUMMARY OF THE INVENTION
In general, these and other object of the invention are met by a
low profile shorting plug for interconnecting two contacts of the
integrated circuit socket, which shorting plug basically comprises
an elongated housing made of an insulated material having an
opening extending along the longitudinal axis thereof, and with a
U-shaped metallic connector pin disposed in the opening of the
elongated housing and having its leg portions extending from the
housing perpendicular to the longitudinal axis of the housing. The
leg portions of the U-shaped metallic connector pin may readily be
inserted into opposed contacts of an integrated circuit socket for
effecting shorting of the connectors. In addition, extending from
the opposite surface of the elongated housing, and preferably
formed integral therewith, are a pair of spaced insulated storage
ears which may also be inserted into two opposed contacts of the
integrated circuit socket when the subject low profile shorting
plug is not in use.
From the construction of the subject invention, there is achieved
the desirable attributes of a low profile shorting plug, as well as
a shorting plug having storage capabilities.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the invention, together with the
further objects and advantages thereof, the following detailed
description of preferred embodiments in the drawings may be
referred to, in which:
FIG. 1 is an exploded perspective view of a conventional integrated
socket, together with one embodiment of a shorting plug made
according to the subject invention;
FIG. 2 is a frontal view of the shorting plug of FIG. 1, partially
in section, wherein the shorting plug as mounted in the socket is
in the stored position;
FIG. 3 is a bottom view of the shorting plug of FIG.1.
FIG. 4 is a plan view of second embodiment of a shorting plug of
the subject invention;
FIG. 5 is a sectional view taken along line 5--5 in FIG. 4;
FIG. 6 is a sectional view of the shorting plug of FIG. 4 taken
along line 6--6 in FIG. 5;
FIG. 7 is a cross-sectional view of the shorting plug of FIG. 4
taken along line 7--7 in FIG. 5; and
FIG. 8 is a frontal view, partially in section, of a third
embodiment of a shorting plug made according to the teachings of
the subject invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to FIG. 1, an integrated circuit socket is shown at 10
and includes a base portion 12 and a mating upper housing 14.
Extending from the lower portion of the integrated circuit socket
10 are a plurality of a terminal contacts or pins 16 which include
receptacle portions 20, (see FIG. 2) disposed within the mating
upper housing 14. Openings 18 in the upper surface of upper housing
14 provide access to the receptacle portions 20 of pins 16.
Integrated circuit socket 10 is of the type disclosed in U.S.
Letters Pat. No. 3,732,529 which issued on May 8, 1973 and is
assigned to the assignee of the subject invention. As is readily
apparent, the low profile shorting plug of the subject invention
may likewise be employed with other types of integrated circuit
sockets.
In order to electrically interconnect two opposed contacts 16, 16
of the integrated circuit socket, the subject low profile shorting
plug is provided. The shorting plug is designated by the numeral 30
and basically comprises an elongated housing 32 made of an
electrically insulating material, such as Nylon, and having an
opening 34 therein, which opening 34 extends along the longitudinal
axis of housing 32. Disposed in the opening 34 is a U-shaped
metallic pin 36. The housing 32 includes an upper surface 38 and a
lower surface 40, as well as two opposed side surfaces 42 and 44,
and end surfaces 46, 48. The leg portions of the U-shaped metallic
pin 36 extend from the lower surface 40 of the elongated housing,
and are spaced so as to engage opposed receptacle portions 20, 20
of the integrated circuit contacts 16, 16 of socket 10. Extending
from the upper surface 38 of the housing 32 are a pair of spaced,
electrically insulated storage ears 50, 52 which, as shown in FIG.
2, may be inserted into opposed receptacle portions of the contacts
of the integrated circuit socket when the low profile shorting plug
30 is in the stored, or non-electrically conducting, position.
In operation, in order to interconnect or electrically short two
opposed contacts of the integrated circuit socket, the shorting
plug 30 is inserted into opposed contacts 16, 16, with the leg
portions of the U-shaped metallic member 36 extending into the
receptacles 20, 20 of the contacts. When the shorting plug is not
in use, the shorting plus is stored in the position as indicated in
FIG. 2, thereby insuring that the shorting plug is maintained in a
safe position, as well as in a readily accessible place for
possible future use.
As shown in FIGS. 1 and 2, elongated slots 60 may be provided in
the respective side walls 42 and 44 of the shorting plug 30 (see
FIG. 3) for affording greater flexibility of the leg portions of
U-shaped pin 36.
The elongated housing 32 is made of an insulating material, such as
Nylon or other suitable dielectric material, and preferably the
storage ears 50, 52 are formed integral with the elongated
housing.
Referring to FIGS. 4 to 7, a second embodiment of the subject low
profile shorting plug is indicated by the numeral 70 and comprises
an elongated housing 72 having an opening extending longitudinally
therethrough. As shown in FIGS. 4 through 7, the housing 72 is
internally formed so as to have two lower shoulders 74, 74 and an
upper shoulder 76 against which the U-shaped metallic pin 78 is
maintained. The leg portions of the U-shaped metallic pin 78 extend
perpendicular to the longitudinal axis of the elongated housing 72
and are suitably spaced to engage opposed contacts of an integrated
circuit socket.
In the third embodiment of FIG. 8, the housing 72 is provided with
integral, spaced, insulated storage ears 80, 82 extending from the
top surface 73 of the housing 72.
In the assembly of the low profile shorting plug 70 of the
embodiments illustrated in FIGS. 4-7 and FIG. 8, one leg of the
U-shaped pin would be pre-bent, and the opposite leg would be
inserted through the the longitudinal opening within the elongated
housing 72, and after the first leg is securely positioned, the
second leg 78 would be bent downwardly to the final position, as
shown in FIGS. 5 and 8. It is noted that the upper and lower
internal shoulders 76 and 74 are operative to positively engage the
U-shaped metallic pin 78 for maintaining the integrity of the low
profile shorting plug, even after repeated insertions and removals
from opposed contacts of an integrated circuit socket.
In summary, the subject invention provides a new and improved
shorting plug having the desirable characteristics of a low
profile, as well as having inherent storage capability.
Although the invention has been described with reference to
preferred and specific embodiments, numerous modifications and
variations in form and detail, might occur to those skilled in the
art. Accordingly, all such modifications and variations are
intended to be included within the scope and spirit of the appended
claims.
* * * * *