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Патент USA US3045215

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July 17, 1962
w. G, OSBORN
3,045,205
CLAMP CONNECTOR
Filed June 26, 1959
INVENTOR
WILLIAM q. 055 oe/u
BYMZM
ATTO R N EY
United States Patent
[ice
Patented July 17,v 1 962
1
2
3,045,205
The connector can be installed by hand ‘and without
tools, in the matter of seconds, affecting a saving in time
over other installation methods.‘ A reliable electrical con
-
CLAMP CONNECTOR
‘
William G. Osborn, Stamford, Conn., assignor to Bnrndy
Corporation, a corporation of New York
tact is provided by the light but constant force provided
,
5 by the interengagement of the resilient housing and the
inserted knife. This may be distinguished from compres
Filed June 26, 1959, Ser. No. 823,029
6 Claims. (Cl. 339—247)'
sion and bolted connectors which relyron the ability of
the connector body to retain some unknown part of the
My invention relates to electrical connectors and more
particularly to a manually operable clamp connector.
initially tremendous force supplied during installation.
My device has the additional advantage, during in
Clamp connectors presently available are either of the 10
compression or the bolted types. In the compression type
stallation of causing a “wiping" action between the con-.
a special crimping tool is. used to secure the conductors
ductors and the current carrying knife. ' This action
which are held in place by hand. In the bolted type, the
serves to cut through the oxide ?lm, thus providing a
bolt is tightened by hand until the conductors are held
sound electric joint.
fast and then mechanically tightened by wrench, screw 15
I have thus described my invention but I desire it un
driver, or pliers.
derstood that it is not con?ned to the particular form or
,
Accordingly, the object of my invention is to. provide
uses shown and described, the same being ‘merely illus-p
a clamping type of connector that may be assembled with
out special tools. Other objects are to provide such a
trative, and that the invention may be carried out in other
ways without departing from the spirit of the invention,
and therefore I claim broadly the right to employ all
equivalent instrumentality coming within the scope of
the appended claims, by means of which objects of my
connector requiring a minimum number of parts; a con
nector thatis easily manufactured and assembled; and
one that is reliable in operation.
I accomplished these and other objects and obtain my
invention are attained and new results accomplished, as
new results as will be apparent from the device described
it is obvious that the particular embodiment herein shown
in the following speci?cation, particularly pointed out in
the claims, and illustrated in the accompanying drawing
and described is only one of the many that can be em
ployed to attain these objects and accomplish these re
sults.
in which:
FIGURE 1 is an exploded view in perspective of the
I claim:
connector and conductors used therewith.
1. A knife type electrical connector for a plurality of
FIGURE 2 is an end view of the parts in an assembled 30 side by side conductors comprising a longitudinally ex
position. ’
tending housing member having an opening at both ends
FIGURE 3 is a side elevation of an alternate embodi
and a slot extending between said openings laterally
ment of a connectorduring installation.
through the wall of said housing member; a knife mem
Generally, my invention comp-rises a knife-like spacer
ber having a leading edge“ for transverse movement
which is pushed into a resilient C-shaped housing, the
opposing walls of which are shaped into conductor receiv
ing seats.
Speci?cally, the C-shaped housing 10 can be made of
springy sheet metal with an arched back 12 joining two
walls 14 and 16 curved to provide conductor receiving
seats 18 and 20.
The knife or spacer element 22 may be made of simi
‘through said housing member slot; a conductor receiving
seat provided on each side of said knife member; a mat
ing conductor receiving seat provided in said housing
,
..
member on each side of said slot; pivot means provided
on one end of said knife member; and including means
to operatively connect said pivot means to said housing
member; force receiving means provided on the other end
of said knife member; whereby said knife member is
lar material in a substantial U shape, provided with
adapted for pivotal transverse insertion into said housing
curved wing sections 24 and 26 to correspond with the
member; at least one of said members being made of re- ’ V
conductor receiving seats 18 and 20. The wing sections 45 silient metal that is stressed when conductors are secured
terminate in a rounded leading edge 28 for entering the
therebetween.
I
'
opening 30 of the housing 10. The knife element 22 is
' 2. The connector of claim 1 wherein said pivot means
pivoted about rivet 38 which is inserted through opening
comprises an ear for positioning under a conductor seated
40 in housing 10 and opening 42 in the extension 44 of
in said housing member.
50
the knife element 22.
7
3. The connector of claim 1 wherein said pivot means
comprises an element interconnecting said housing and
Instead of sheet metal, the parts may be made of ex
truded metal having the desired cross section. The
knife members.
_
spacer element may be made of solid metal instead of
4. A knife type electrical connector for a plurality of
having a U-shaped cross section.
side by side conductors comprising a longitudinally ex.
The thickness of the leading edge of the knife element 55 tending housing member having an opening at both ends;
22 is slightly greater than the distance between conduc
a slot extending between said openings laterally through
tors at the seats 18 and 20. This slight difference pro
vides a snap or locking action on installation of the knife
between conductors 32 and 34. The dimensions of the
housing and knife are such that when the knife is forced
the wall of said housing member; a knife member having '
a leading edge for transverse movement through said
housing member slot; a conductor receiving seat provided
on each side of said knife member, and a mating conduc
between the conductors, the housing is resiliently opened,
tor receiving seat provided in said housing member on
the knife supplying the contact pressure. The knife ele
each side of said slot; means to ?x one end of said knife
ment 22 is prevented from collapsing by spacer elements
member with respect to one end of said housing member
46 and 48.
for transverse insertion of said knife member into said
The knife may be provided with a pair of ears 36 lo 65 housing member by the pivoting of the other end of said
cated on one end of the leading edge and extending
knife about said means; at least one of said members
below it.
being made of a resilient material that is stressed when
As shown in FIGURE 3, the ears may be inserted un
conductors are secured therebetween.
derneath the positioned conductors and the knife pivoted
5. A knife type electrical connector for a plurality of
downward into the closed position. The cars maintain 70 side by side conductors, comprising: a longitudinally ex
the proper knife position and insure that the conductors
tending housing member having an opening at both ends;
will be properly seated when the knife is closed.
a slot extending bet-ween said openings laterally through
'
3,045,205
3
the wall of said housing member; a knife member having
a leading edge for transverse movement through said
housing member slot; a conductor receiving seat provided
on each side of said knife member, and a mating conduc
tor receiving seat provided in said housing member on
each side of said slot; means to pivot said knife member
with respect to said housing member for transverse in
sertion of said knife member into said housing member,
the wall of said housing member; a knife member having
a leading edge for transverse movement through said
housing member slot; a conductor receiving seat provided
on each side of said knife member, and a mating conduc
tor receiving seat provided in said housing member on
each side of said slot; means to pivot said knife member
with respect to said housing member for transverse in
including an ear on said knife member for positioning
sertion of said knife member into said housing member,
including an element interconnecting said housing and
under a conductor seated in said housing member; at least
one of said members being made of a resilient material
that is stressed when the conductors are secured therebe
are secured therebetween.
tween.
6. A knife type electrical connector for a plurality of
side by side conductors, comprising: a longitudinally ex 15
tending housing member having an opening at both ends;
a slot extending between said openings laterally through
knife members; at least one of said members being made
of a resilient material that is stressed when the conductors
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,666,991
2,106,724
Cohen ______________ __ Apr. 24, 1928
Cope ________________ .. Feb. 1, 1938
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