Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices
Patent
1997-09-22
1999-10-05
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electrical power distribution systems and devices
361609, 361615, 361732, 361740, 200 5002, 200 5003, H02B 11133, H05K 502, H05K 503, H01H 920
Patent
active
059634200
ABSTRACT:
An electrical apparatus housing having a door for accessing the apparatus within the interior of the housing and a switch for activating the apparatus accessible from the exterior of the housing. When in the on position, the switch is operable to block the door from being opened; thus functioning as an interlock to prevent access to the interior of the housing when the apparatus is activated. The invention includes a key for bypassing the interlock so that under certain circumstances the housing door can be opened while the equipment is operating, so it can be tested in its energized state.
REFERENCES:
patent: 1412488 (1922-04-01), Pickareck
patent: 1561248 (1925-11-01), Krantz
patent: 1730311 (1929-10-01), Baxter et al.
patent: 2695934 (1954-11-01), Wills
patent: 2851548 (1958-09-01), Edmunds
patent: 3171908 (1965-03-01), Malota
patent: 4079214 (1978-03-01), Castonguay et al.
Bailey James Rodney
Frushour Douglas Eugene
Randall Alfred Lee
Eaton Corporation
Moran Martin J.
Picard Leo P.
Vortman Anatoly
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