US2753536A - Clamps for holding electric connectors together - Google Patents

Clamps for holding electric connectors together Download PDF

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Publication number
US2753536A
US2753536A US370353A US37035353A US2753536A US 2753536 A US2753536 A US 2753536A US 370353 A US370353 A US 370353A US 37035353 A US37035353 A US 37035353A US 2753536 A US2753536 A US 2753536A
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jaws
cable
plug
clamps
pair
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Expired - Lifetime
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US370353A
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Tjader Hugo
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H01R13/6392—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for extension cord

Definitions

  • the primary object of the invention is to provide a holding clamp that will embrace the female and male plug of the connectors, preventing the plugs from separating.
  • Another object of the invention is to provide a clamp that will permit a slight movement of the plugs, but will return them back together on releasing the cable.
  • the purpose of this object is to protect the plugs from a sudden jerk, which in many cases would separate the cables from the plugs, but with my resilient feature incorporated with the clamp a sudden jerk can be absorbed by this resilient connection.
  • Figure l is a perspective view of my new and improved holding clamp associated with one of the electric plug terminals of a connector.
  • Figure 2 illustrates the clamp holding the plug terminals together.
  • Figure 3 is a side view of Figure 2.
  • Figure 4 is an end view, taken on line 4-4 of Figure 2 of the clamp installed on the plugs.
  • Figure 5 is a sectional view, taken on line 55 of Figure 2.
  • the electric cable is indicated by numeral 1, having the usual female terminal or plug 2 thereon.
  • Another cable 3 has the usual male plug 4 forming part thereof.
  • the invention consists of a pair of jaws 5 and 6 connected together by the cross member 7 forming part thereof at their one end.
  • the jaws 5 and 6 consist of bifurcated right angled bends 8 at their opposite ends, which are adapted to embrace the electric cable 1 at the rear end of the terminal or plug 2, as best illustrated in Figures 2 and 4.
  • Sloping cams 9 are bent up at right angles to the jaws or bars 5 and 6 and are adapted to cooperate with the ring or keeper 10. As the keeper 10 is pushed towards the ends 11 of the cams they will compress or bring together the bifurcated ends 8 embracing the electric cable 1 behind the plug 2.
  • a spring 12 or other resilient material has one of its ends resting against the cross member 7 of the jaws 5 and 6, and its opposite end bearing against the rear 13 of the electric plug as indicated in Figure 2. This spring tends to keep the plug 4 in contact with the plug 2 at all times.
  • the cross or connecting member '7 of the jaws 5 and 6 has an opening 14 therein, adapted to embrace the electric cable 3 at all times.
  • My new and improved holding clamp for electric plugs or conductors is admirably adapted to be used in heavy duty work, but it can be used anywhere, as for instance outdoors in connection with electric lawn mowers and the like.
  • a holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, said projections overlapping each other when said jaws are in clamping position, said jaws being biased for movement away from each other, and a ring engaging about said jaws and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables.
  • a holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, said projections overlapping each other when said jaws are in clamping posi tion, said jaws being biased for movement away from each other, cam means carried by and extending lengthwise of each jaw, and a jaw compressing ring engaging about said jaws and cams and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables.
  • a holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, and said projections overlapping each other when said jaws are in clamping position, said jaws being biased for movement away from each other, cam means carried by and extending lengthwise of each jaw, a jaw compressing ring engaging about said jaws and cams and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables, and a spring about said one cable interposed between the connector carried by said one cable and said connecting member whereby to resiliently resist movement in one direction of said connectors between said jaws.

Description

H. TJADER 2753,536
CLAMPS FOR HOLDING ELECTRIC CONNECTORS TOGETHER July 3, 1956 Filed July 27, 1953 INVENTOR. HUGO TJADER United States Patent (3 i CLAMPS FUR HOLDING ELECTRIC CONNECTORS TOGETHER Hugo Tjader, Corvallis, Oreg. Application July 27, 1953, Serial No. 370,353 3 Claims. (Cl. 339-45) This invention relates to clamps for holding electric connectors together, and is particularly adapted to be used in connection with electric extension cables used in connection with electric motors on portable equipment and the like.
The primary object of the invention is to provide a holding clamp that will embrace the female and male plug of the connectors, preventing the plugs from separating.
Another object of the invention is to provide a clamp that will permit a slight movement of the plugs, but will return them back together on releasing the cable. The purpose of this object is to protect the plugs from a sudden jerk, which in many cases would separate the cables from the plugs, but with my resilient feature incorporated with the clamp a sudden jerk can be absorbed by this resilient connection.
These and other incidental objects will be apparent in the drawings, specification and claims.
Referring to the drawings:
Figure l is a perspective view of my new and improved holding clamp associated with one of the electric plug terminals of a connector.
Figure 2 illustrates the clamp holding the plug terminals together.
Figure 3 is a side view of Figure 2.
Figure 4 is an end view, taken on line 4-4 of Figure 2 of the clamp installed on the plugs.
Figure 5 is a sectional view, taken on line 55 of Figure 2.
Referring more specifically to the drawings:
The electric cable is indicated by numeral 1, having the usual female terminal or plug 2 thereon. Another cable 3 has the usual male plug 4 forming part thereof.
The invention consists of a pair of jaws 5 and 6 connected together by the cross member 7 forming part thereof at their one end. The jaws 5 and 6 consist of bifurcated right angled bends 8 at their opposite ends, which are adapted to embrace the electric cable 1 at the rear end of the terminal or plug 2, as best illustrated in Figures 2 and 4.
Sloping cams 9 are bent up at right angles to the jaws or bars 5 and 6 and are adapted to cooperate with the ring or keeper 10. As the keeper 10 is pushed towards the ends 11 of the cams they will compress or bring together the bifurcated ends 8 embracing the electric cable 1 behind the plug 2. A spring 12 or other resilient material has one of its ends resting against the cross member 7 of the jaws 5 and 6, and its opposite end bearing against the rear 13 of the electric plug as indicated in Figure 2. This spring tends to keep the plug 4 in contact with the plug 2 at all times. The cross or connecting member '7 of the jaws 5 and 6 has an opening 14 therein, adapted to embrace the electric cable 3 at all times.
I will now describe the operation of my new and improved clamp for holding electric conductors together. The plug 4 is disconnected from the cable 3 and the clamp assembly is placed thereon by running the cable 3 through the opening 14 of the cross member 7, also placing the spring 12 over the end of the cable 3, after which the terminal or plug 4 is reconnected to the cable 3.
When it is desired to connect the opposite plug, as for instance the female plug 2 to the plug 4, the keeper 10 2,753,536 Patented July 3,
ice
is moved to the position best illustrated in Figure 1. This allows the jaws to open, permitting the plugs to be connected. The operator then compresses the jaws together embracing the plugs and slipping the keeper up over and along the cams 9 until the bufurcated ends 8 of the jaws grip or engage the cable 1 behind the plug 2. The keeper will remain in this position by friction, holding the clamp in its holding position.
Any pull tending to separate the plugs 2 and 4 will be absorbed by the spring 12. After this pull has been released, the plugs will again be forced "together by the action of the spring.
My new and improved holding clamp for electric plugs or conductors is admirably adapted to be used in heavy duty work, but it can be used anywhere, as for instance outdoors in connection with electric lawn mowers and the like.
What is claimed is:
1. A holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, said projections overlapping each other when said jaws are in clamping position, said jaws being biased for movement away from each other, and a ring engaging about said jaws and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables.
2. A holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, said projections overlapping each other when said jaws are in clamping posi tion, said jaws being biased for movement away from each other, cam means carried by and extending lengthwise of each jaw, and a jaw compressing ring engaging about said jaws and cams and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables.
3. A holder for a pair of cable connectors of the type connecting adjacent ends of a pair of cables comprising a pair of elongated resilient jaws, a connecting member connecting the jaws together at one end thereof, said member having an opening through which one cable of said pair is adapted to loosely engage, a notched projection at the other end of each jaw, and said projections overlapping each other when said jaws are in clamping position, said jaws being biased for movement away from each other, cam means carried by and extending lengthwise of each jaw, a jaw compressing ring engaging about said jaws and cams and movable lengthwise thereof for moving said jaws toward each other in clamping engagement about the other of said cables, and a spring about said one cable interposed between the connector carried by said one cable and said connecting member whereby to resiliently resist movement in one direction of said connectors between said jaws.
References Cited in the file of this patent UNITED STATES PATENTS 1,139,083 Takacs May 11, 1915 2,434,521 Savage Jan. 13, 1948 2,464,893 Ross Mar. 22, 1949 2,473,321 Yanko June 14, 1949 2,611,801 Hammerly Sept. 23, 1952
US370353A 1953-07-27 1953-07-27 Clamps for holding electric connectors together Expired - Lifetime US2753536A (en)

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975391A (en) * 1957-02-19 1961-03-14 Electrolux Corp Combined handle and electric plug retainer
US2984815A (en) * 1959-06-25 1961-05-16 Richard E Landon Clamping device for electrical extension cord couplings
US3097034A (en) * 1961-10-20 1963-07-09 Bernard V Jamrosy Extension cord lock and keeper
US3389367A (en) * 1966-03-25 1968-06-18 Cable Electric Products Inc Safety cap for extension cord sets
US3469864A (en) * 1967-06-19 1969-09-30 Continental Oil Co Conduit connector
US3475716A (en) * 1967-12-08 1969-10-28 Miller Electric Co Retainer for electric cord connectors
US4097105A (en) * 1977-02-04 1978-06-27 Zumwalt Floyd A Harness for plug and socket
US4204738A (en) * 1978-03-31 1980-05-27 The Toro Company Electrical connector retaining device
US4407556A (en) * 1981-09-21 1983-10-04 Teletype Corporation Retaining clip for an electrical connector
US4418976A (en) * 1981-10-16 1983-12-06 Teletype Corporation Retaining clip for an electrical connector
US4519014A (en) * 1983-05-09 1985-05-21 Magnetic Controls Company Cable access assembly
US4664463A (en) * 1985-05-31 1987-05-12 Pacific Electricord Company Plug and connector clamp
US4875874A (en) * 1988-11-03 1989-10-24 Windsor Jr John F Electrical connector securing arrangement
US5393243A (en) * 1994-04-08 1995-02-28 Pacific Electricord Company Releasable cord connecting lock
US5733138A (en) * 1995-12-13 1998-03-31 Ray Clark Securing device for mating electrical cords
US6135803A (en) * 1999-06-03 2000-10-24 Alert Safety Lite Products Co., Inc. Electrical plug lock
US6612619B2 (en) * 1999-01-05 2003-09-02 Martin H. Wieder Quick coupler retention clip and method
US20050017506A1 (en) * 2003-04-16 2005-01-27 Cary Caldwell Method and apparatus for a retractable pneumatic line coupling protector
US6957977B1 (en) 2003-11-13 2005-10-25 Tmc Enterprises, A Division Of Tasco Industries, Inc. Plug retention apparatus
US20060194464A1 (en) * 2005-02-28 2006-08-31 Credo Technology Corporation Anti-disengagement connect system for a power tool
US7182624B1 (en) 2003-11-13 2007-02-27 Tmc Enterprises Plug retention apparatus
US7186130B1 (en) 2003-11-13 2007-03-06 Tmc Enterprises Plug retention apparatus
US20110086532A1 (en) * 2009-10-08 2011-04-14 Shawn Jackson Electrical Conduit Coupling Apparatuses and Adapters
US7972165B1 (en) 2010-02-22 2011-07-05 Charles Lifson Apparatus for providing a secure connection between different devices
US20110207362A1 (en) * 2010-02-22 2011-08-25 Charles Lifson Apparatus for providing a secure connection between different devices
WO2012045675A1 (en) * 2010-10-04 2012-04-12 Robert Bosch Gmbh Electrical clip connector, electrical clip connection and also ready-to-use electrical cable
US20120171883A1 (en) * 2010-12-29 2012-07-05 Hon Hai Precision Industry Co., Ltd. Securing apparatus for connector
US20150093932A1 (en) * 2013-09-30 2015-04-02 Hon Hai Precision Industry Co., Ltd. Fixing device and connector assembly having the same
US9048595B2 (en) 2012-03-21 2015-06-02 Advanced Powertrain Engineering, Llc Retaining clip for electrical connectors
US9077111B2 (en) 2012-08-03 2015-07-07 Synapsense Corporation Plug retention apparatus
US9895265B1 (en) * 2017-06-30 2018-02-20 Safe Tool Technology Corporation Safety apparatus and system for use with eye protection
US11316301B2 (en) * 2020-03-20 2022-04-26 Ningbo Well Electric Appliance Co., Ltd. Electrical connection assembly
US11450995B2 (en) * 2019-10-23 2022-09-20 Edward Stagner Releasable power assembly
US20220320798A1 (en) * 2021-04-05 2022-10-06 Hyundai Translead Linear Locking Electrical Connectors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1139083A (en) * 1914-08-03 1915-05-11 Steve Takacs Screw-driver.
US2434521A (en) * 1947-01-08 1948-01-13 Savage Joseph Plug and socket clamp
US2464893A (en) * 1945-08-21 1949-03-22 Allen R Ross Extension cord connection lock
US2473321A (en) * 1945-07-27 1949-06-14 Yanko Michael Plug-in clip
US2611801A (en) * 1949-02-24 1952-09-23 Gen Electric Collector or power take-off plug for bus bar duct systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1139083A (en) * 1914-08-03 1915-05-11 Steve Takacs Screw-driver.
US2473321A (en) * 1945-07-27 1949-06-14 Yanko Michael Plug-in clip
US2464893A (en) * 1945-08-21 1949-03-22 Allen R Ross Extension cord connection lock
US2434521A (en) * 1947-01-08 1948-01-13 Savage Joseph Plug and socket clamp
US2611801A (en) * 1949-02-24 1952-09-23 Gen Electric Collector or power take-off plug for bus bar duct systems

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975391A (en) * 1957-02-19 1961-03-14 Electrolux Corp Combined handle and electric plug retainer
US2984815A (en) * 1959-06-25 1961-05-16 Richard E Landon Clamping device for electrical extension cord couplings
US3097034A (en) * 1961-10-20 1963-07-09 Bernard V Jamrosy Extension cord lock and keeper
US3389367A (en) * 1966-03-25 1968-06-18 Cable Electric Products Inc Safety cap for extension cord sets
US3469864A (en) * 1967-06-19 1969-09-30 Continental Oil Co Conduit connector
US3475716A (en) * 1967-12-08 1969-10-28 Miller Electric Co Retainer for electric cord connectors
US4097105A (en) * 1977-02-04 1978-06-27 Zumwalt Floyd A Harness for plug and socket
US4204738A (en) * 1978-03-31 1980-05-27 The Toro Company Electrical connector retaining device
US4407556A (en) * 1981-09-21 1983-10-04 Teletype Corporation Retaining clip for an electrical connector
US4418976A (en) * 1981-10-16 1983-12-06 Teletype Corporation Retaining clip for an electrical connector
US4519014A (en) * 1983-05-09 1985-05-21 Magnetic Controls Company Cable access assembly
US4664463A (en) * 1985-05-31 1987-05-12 Pacific Electricord Company Plug and connector clamp
US4875874A (en) * 1988-11-03 1989-10-24 Windsor Jr John F Electrical connector securing arrangement
US5393243A (en) * 1994-04-08 1995-02-28 Pacific Electricord Company Releasable cord connecting lock
WO1995028023A1 (en) * 1994-04-08 1995-10-19 Pacific Electricord Company Releasable cord connecting lock
US5733138A (en) * 1995-12-13 1998-03-31 Ray Clark Securing device for mating electrical cords
US6612619B2 (en) * 1999-01-05 2003-09-02 Martin H. Wieder Quick coupler retention clip and method
US6135803A (en) * 1999-06-03 2000-10-24 Alert Safety Lite Products Co., Inc. Electrical plug lock
US20050017506A1 (en) * 2003-04-16 2005-01-27 Cary Caldwell Method and apparatus for a retractable pneumatic line coupling protector
US7052046B2 (en) 2003-04-16 2006-05-30 Cary Caldwell Method and apparatus for a retractable pneumatic line coupling protector
US6957977B1 (en) 2003-11-13 2005-10-25 Tmc Enterprises, A Division Of Tasco Industries, Inc. Plug retention apparatus
US7186130B1 (en) 2003-11-13 2007-03-06 Tmc Enterprises Plug retention apparatus
US7101214B1 (en) 2003-11-13 2006-09-05 Tmc Enterprises Plug retention apparatus
US7182624B1 (en) 2003-11-13 2007-02-27 Tmc Enterprises Plug retention apparatus
US7175456B2 (en) 2005-02-28 2007-02-13 Robert Bosch Gmbh Anti-disengagement connect system for a power tool
WO2006093718A1 (en) * 2005-02-28 2006-09-08 Robert Bosch Gmbh Anti-disengagement connect system for a power tool
US20060194464A1 (en) * 2005-02-28 2006-08-31 Credo Technology Corporation Anti-disengagement connect system for a power tool
US20110086532A1 (en) * 2009-10-08 2011-04-14 Shawn Jackson Electrical Conduit Coupling Apparatuses and Adapters
US7972165B1 (en) 2010-02-22 2011-07-05 Charles Lifson Apparatus for providing a secure connection between different devices
US20110207362A1 (en) * 2010-02-22 2011-08-25 Charles Lifson Apparatus for providing a secure connection between different devices
US8535082B2 (en) 2010-02-22 2013-09-17 Charles Lifson Apparatus for providing a secure connection between different devices
WO2012045675A1 (en) * 2010-10-04 2012-04-12 Robert Bosch Gmbh Electrical clip connector, electrical clip connection and also ready-to-use electrical cable
CN103119798A (en) * 2010-10-04 2013-05-22 罗伯特·博世有限公司 Electrical clip connector, electrical clip connection and also ready-to-use electrical cable
US8932073B2 (en) 2010-10-04 2015-01-13 Robert Bosch Gmbh Electrical clip connector, electrical clip connection and also ready-to-use electrical cable
CN103119798B (en) * 2010-10-04 2016-06-15 罗伯特·博世有限公司 Electricity clip junctor, electricity clip connect structure and complete cable
US20120171883A1 (en) * 2010-12-29 2012-07-05 Hon Hai Precision Industry Co., Ltd. Securing apparatus for connector
US8337236B2 (en) * 2010-12-29 2012-12-25 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Securing apparatus for connector
US9048595B2 (en) 2012-03-21 2015-06-02 Advanced Powertrain Engineering, Llc Retaining clip for electrical connectors
US9761986B2 (en) 2012-03-21 2017-09-12 Advanced Powertrain Engineering, Llc Retaining clip for electrical connectors
US9077111B2 (en) 2012-08-03 2015-07-07 Synapsense Corporation Plug retention apparatus
US20150093932A1 (en) * 2013-09-30 2015-04-02 Hon Hai Precision Industry Co., Ltd. Fixing device and connector assembly having the same
US9895265B1 (en) * 2017-06-30 2018-02-20 Safe Tool Technology Corporation Safety apparatus and system for use with eye protection
US10022272B1 (en) * 2017-06-30 2018-07-17 Safe Tool Technology Corporation System, apparatus and method for eye protection
WO2019006308A1 (en) * 2017-06-30 2019-01-03 Safety Tool Technology Corporation Safety system, apparatus and method
US10617565B2 (en) 2017-06-30 2020-04-14 Safe Tool Technology Corporation Safety system, apparatus and method
US11450995B2 (en) * 2019-10-23 2022-09-20 Edward Stagner Releasable power assembly
US11316301B2 (en) * 2020-03-20 2022-04-26 Ningbo Well Electric Appliance Co., Ltd. Electrical connection assembly
US20220320798A1 (en) * 2021-04-05 2022-10-06 Hyundai Translead Linear Locking Electrical Connectors
US11522317B2 (en) * 2021-04-05 2022-12-06 Hyundai Translead Linear locking electrical connectors

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