Locks – Special application – For control and machine elements
Patent
1995-03-03
1997-06-03
Boucher, Darnell M.
Locks
Special application
For control and machine elements
70203, 70212, 70224, 70452, 70379R, E05B 1310, G05G 500
Patent
active
056343574
ABSTRACT:
A latch handle (20) includes a grip portion (22) and a housing portion (24) with a spindle (28) extending therefrom to actuate a latch. The handle (20) rotates about an escutcheon (26) and is configured for receiving two or more padlocks. The handle grip portion (22) includes a padlock receiving portion (32) while the escutcheon (26) has a raised portion (34) aligning with the lock receiving portion (32). The escutcheon (26) takes on a second embodiment (126) for rotation in an opposite direction. A defeater device (30) includes a retainer (40) coupled to a plunger member (50). The plunger member (50) slides axially within a bore (70) and rotates relative to an insert (60). The insert includes a cammed surface (62) which receives tabs (52) of the plunger member (50). The plunger member (50) is biased by compression spring (48) and torsion spring (56) to urge the tabs (52) against the cammed surface (62) so that the plunger member (50) moves axially as the retainer (40) is rotated.
REFERENCES:
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P. 502 of Hoffman Engineering Company Specifier's Guide, 1995-1996, showing lock kits for enclosures and junction boxes.
Pp. 574-575 of Hoffman Engineering Company Specifier's Guide, 1995-1996, showing handles, latches and clamps for use on Hoffman custom enclosures.
Cover page of a DECO brochure, dated Apr., 1993, showing a latch handle.
Myers Jim I.
Nutter Curtis F.
Boucher Darnell M.
Federal-Hoffman Inc.
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