US Patent No: 4,781,609

Number of patents in Portfolio can not be more than 2000

Wall system with multicircuit electrical system

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Importance

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Abstract

An electrical system for a wall system formed from a plurality of serially connected wall panels. Each panel has at least one electrical terminal mounted thereon, and the terminals are joined by electrical cables or flexible electrical connectors. The electrical system is a seven-conductor system employing three live and three neutral conductors for defining three separate electrical circuits each having a separate neutral. A portable power-tap unit, specifically a receptacle unit, can be plugged into the power block for selective engagement with any one of the three circuits. The power-tap unit has a connector portion which plugs into the power block, which connector portion is defined soley by three contacts. Two of the three contacts, namely the live and neutral contacts, are mounted on a carrier which is slidably supported on the power-tap housing so as to be slidably displaced between three selected positions so that the power-tap can be selectively joined to any one of the three circuits.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HAWORTH, INC.HOLLAND, MI351

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nestell, David E Spring Lake, MI 28 406
Wilson, Harold R Hudsonville, MI 42 1042

Cited Art

Patent Info (Count) # Cites Year
 
HAWORTH, INC. (2)
4,367,370 Power panel system with selective multiple circuits 64 1979
4,666,223 Switchable receptacle unit 31 1985
 
HERMAN MILLER, INC. (1)
4,382,648 Electrical energy supply system for work stations in a space divider system 34 1979
 
STEELCASE INC. (1)
4,429,934 Panel wiring system 25 1982
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,494,808 Electrical collector rail with connectable adapter 22 1982

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
HAWORTH, INC. (13)
4,882,885 Panel port retention system 22 1989
5,595,495 Electrified interior space-dividing members with low-voltage switching system 22 1994
5,607,317 Electrical powerway for furniture panel 11 1994
5,606,919 Space-dividing fence for power and/or communication distribution 57 1995
6,123,562 Electrical powerway for furniture panel 15 1997
7,114,971 Multi-system plug-in power receptacle for modular power distribution system 2 2005
7,614,896 Solid wire modular electrical system for office areas 3 2005
7,841,878 Modular electrical distribution system for a building 3 2008
7,826,202 Modular electrical distribution system for a building 0 2008
7,697,268 Modular electrical distribution system for a building 8 2008
7,648,379 Modular electrical distribution system for a building 0 2008
8,172,588 Modular electrical distribution system for a building 0 2010
8,172,589 Modular electrical distribution system for a building 0 2010
 
GROUP DEKKO, INC. (7)
5,186,640 Wiring harness assembly 11 1992
5,503,565 Receptacle assembly 39 1993
6,948,972 Overhead lighting splitter 9 2003
7,108,532 Circuit selectable receptacle 3 2004
7,303,417 Circuit selectable receptacle 1 2006
7,544,076 Circuit selectable receptacle 1 2007
8,258,412 Switchable electrical power system 0 2009
 
STEELCASE DEVELOPMENT CORPORATION (5)
5,092,786 Modular powerway for office furniture and the like 25 1989
5,158,472 Modular powerway for office furniture and the like 26 1991
5,277,609 Modular powderway for partition panels and the like (C-39) 32 1992
5,252,086 Modular powerway with selectable receptacle 40 1992
5,318,454 Off-module bus electrical system (C-13) 22 1992
 
AMP INCORPORATED (4)
4,952,164 Plug-in outlet unit for modular furniture power distribution system 42 1989
5,092,787 Power distribution for modular furniture units 44 1991
5,203,713 Power distribution system for modular furniture unit 27 1991
5,203,712 Circuit wiring device 25 1992
 
HERMAN MILLER, INC. (4)
5,013,252 Electrified wall panel system 36 1990
5,112,240 Electrified wall panel system 23 1991
5,214,889 Electrified wall panel system 54 1992
5,562,469 Electrified wall panel system 38 1995
 
SIEMENS INDUSTRY, INC. (4)
5,619,014 Busway busbar with plug-in tab 13 1993
5,486,651 Multi-neural electrical busway 9 1993
5,466,889 Electrical power busway and insulator assembly 9 1993
5,442,135 Electrical power distribution busway and housing 10 1993
 
INNOTEC CORPORATION (3)
6,948,962 Flexible jumper receptacle 2 2004
7,993,150 Power distribution assembly with grounding feature 0 2010
7,955,106 Flex connector and manufacturing process 0 2010
 
KRONE GMBH (3)
5,816,836 High density high performance connector 4 1996
6,186,808 High density high performance telecommunications/data link and connector with tap and contact displacement assembly 1 1998
6,206,711 High density high performance telecommunications/data link and connector with tap and contact displacement assembly 8 1999
 
MAGNA MIRRORS OF AMERICA, INC. (2)
8,048,529 Vehicular rear sliding window assembly 1 2010
8,322,073 Vehicular rear sliding window assembly 0 2011
 
AIRBUS OPERATIONS GMBH (1)
8,128,030 Line system for an aircraft 2 2007
 
AMERICAN PASSENGER RAIL CAR COMPANY, L.L.C. (1)
5,236,370 Electrical system for interior space-dividing system 40 1992
 
GROUP DEKKO INTERNATIONAL A CORP. OF INDIANA (1)
5,104,332 Modular furniture power distribution system and electrical connector therefor 52 1991
 
LIGHTPOWER EXPO LIMITED (1)
7,728,460 Power supply system 0 2008
 
MOLEX INCORPORATED (1)
7,044,772 Electrical connector and cable assembly 1 2004
 
NETWORK POWER SYSTEMS, INC. (1)
5,412,529 Modular wall panel assembly comprising power surge protector and/or uninterruptable power supply components, and connector adapter unit therefor 13 1992
 
NIPPON AIR BRAKE CO., LTD. (1)
4,969,838 Latch and locking handle for an electrical connector 14 1989
 
PENT ASSEMBLIES, INC. (1)
RE34977 Modular furniture power distribution system and electrical connection therefor 3 1993
 
USM HOLDING AG (1)
6,830,468 Wiring of a modular furniture system 1 2002
 
ZUMTOBEL STAFF GMBH (1)
6,541,720 Electrical connecting device for contacting conductor wires 7 2001
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (10)
5,046,963 Electrical power distribution system 15 1990
5,096,431 Outlet receptable with rearrangeable terminals 43 1990
5,902,148 Multiple receptacle extension cord 18 1998
7,494,356 Wireless and adjustable raceway 3 2005
7,410,379 Multiple circuit receptacles 10 2005
7,905,736 Temporary lighting fixture having a fastener 0 2007
7,808,761 Extension cord having a temperature indicator 0 2007
7,744,409 Adjustable anchor for extension cord 0 2007
7,688,563 Power cord having thermochromatic material 0 2007
8,029,307 Swing fastener for securing 120V electrical connectors 0 2009