US Patent No: 4,759,726

Number of patents in Portfolio can not be more than 2000

Screwless type electrical terminal block

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Importance

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Abstract

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A cam-operated screwless electrical terminal block is provided having a generally box-shaped housing with an open top and an aperture in its front side and containing a generally C-shaped electrical terminal having vertically disposed opposing gripping elements the ends of which are adjacent the front aperture of the housing. The top opening carries a cam-lever pivotally mounted such that when the lever arm of the cam-lever is raised the electrical terminal ends are separated, and when the lever arm of the cam-lever is depressed the upper gripping element of the electrical terminal is depressed toward the lower gripping element so that a wire inserted in the front aperture of the housing between the ends of the gripping elements of the electrical terminal is securely held. The electrical terminal within the housing is adapted to make electrical contact with a circuit board and the terminal block is configured in such a way that a wide range of wire sizes may be conveniently and securely held. The cam-lever is provided with a flattened area on the portion of its face which contacts the upper gripping element of the electrical contact when the cam-lever arm is in the depressed position, and the housing and cam-lever arm possess respectively latching detents so that the cam-lever arm is securely maintained in its depressed position after an electrical connection has been made.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THOMAS & BETTS INTERNATIONAL, INC.SPARKS, NV635

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gross, Deanna L Bartlett, IL 1 51
Naylor, Herbert C West Dundee, IL 5 80
Smith, Gregory J Tucson, AZ 94 765

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
LEVITON MANUFACTURING CO., INC. (8)
8,137,145 Wiring termination mechanisms and use thereof 1 2009
8,047,883 Wire termination mechanisms and methods of use 0 2009
7,955,096 Modular wiring system with locking elements 5 2010
8,096,818 Modular wiring system with locking elements 2 2010
8,058,552 Electrical wiring system 1 2010
8,613,624 Modular wiring system with locking elements 0 2011
8,371,863 Modular wiring system 0 2011
8,602,799 Modular wiring system 0 2013
 
ADC TELECOMMUNICATIONS, INC. (5)
8,064,182 Overvoltage protection plug 2 2007
D591691 Overvoltage protection plug 4 2007
D620896 Overvoltage protection plug 4 2008
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8,579,641 Multi-orientation plug 0 2012
 
Supplie & Co. Import/Export, Inc. (3)
6,146,187 Screwless terminal block 22 1998
D423458 Terminal block 2 1998
6,250,950 Screwless terminal block 57 2000
 
TYCO ELECTRONICS CORPORATION (3)
6,832,938 Electrical connector with integral wire release member 8 2002
6,783,385 Electrical connector for securing a wire to a contact 10 2003
D612811 Contact isolator 1 2008
 
AMP Incorporated (2)
5,173,058 Zero insertion force electrical connector 22 1989
4,971,571 Self-locking pin field connector 23 1990
 
GENERAL ELECTRIC COMPANY (2)
5,810,628 Circuit breaker line and load terminal 1 1996
6,019,647 Circuit breaker line and load terminal 3 1998
 
PHOENIX CONTACT GMBH & CO. KG (2)
7,354,319 Electrical terminal 4 2006
8,475,191 Electrical terminal having a constantly visible labeling field 0 2009
 
RIA-BTR Produktions GmbH (2)
D471876 Actuator element for a connecting terminal assembly 7 2001
D472877 Connecting terminal assembly 21 2001
 
ABB AG (1)
8,129,641 Installation switchgear having a spring-loaded terminal arrangement 3 2008
 
APPLE INC. (1)
8,636,526 Connector receptacles having contact protection during improper insertion of a card 0 2010
 
AVX CORPORATION (1)
8,262,405 Wire-to-wire connector 3 2011
 
CHENG UEI PRECISION INDUSTRY CO., LTD. (1)
8,262,422 Electrical connector 0 2011
 
Dynedeem Limited (1)
5,575,695 Electrical connectors 8 1995
 
EATON INDUSTRIES GMBH (1)
7,766,689 Plug adapter for an electrical switching device 4 2009
 
FCI AUTOMOTIVE HOLDING (1)
6,619,964 Connection system for flexible flat strip cables with cam 1 2002
 
Functional Devices, Inc. (1)
D489278 Current sensor housing 5 2003
 
HARTING ELECTRIC GMBH & CO. KG (1)
6,712,640 Connecting arrangement 0 2002
 
HUBBELL INCORPORATED (1)
7,213,961 Low voltage luminaire assembly 5 2003
 
KYOCERA ELCO CORPORATION (1)
5,902,142 Connector for a flexible printed circuit board or a flexible flat cable 3 1996
 
MOLEX INCORPORATED (1)
5,083,947 Electrical conductor trap terminal and connector 4 1991
 
OMRON CORPORATION (1)
6,851,967 Wire connector 18 2003
 
OSRAM SYLVANIA INC. (1)
5,711,596 Mechanical electrical connector for an electric lamp 3 1995
 
PATENT STORE LLC, THE (1)
8,257,109 Lever waterproof wire connectors 0 2009
 
SWITCHLAB INC. (1)
D694191 Electrical wire connection terminal block 0 2012
 
Telzon, Inc. (1)
4,971,572 Electrical connector 5 1989
 
WAGO VERWALTUNGSGESELLSCHAFT MBH (1)
8,328,586 Actuating device for an electrical connection terminal 1 2011
 
Other [Check patent profile for assignment information] (3)
5,449,300 Connection terminal assembly having elastically mounted wire contacting plates 9 1993
6,962,512 Unit for connecting conductors to terminals 0 2001
6,666,707 Unit for connecting conductor terminals 5 2001

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