Locks – Portable – Padlocks
Patent
1992-04-06
1995-03-21
Cuomo, Peter M.
Locks
Portable
Padlocks
70 39, 70 53, E05B 6722
Patent
active
053985290
ABSTRACT:
A lock is provided having a thick U-shaped shackle, a transverse housing for receivably locking extending ends of the shackle, a pair of longitudinal members which lockably intersect the shackle ends and which are actuated by a lock protected within the intermediate portion of the housing. In an exemplary embodiment of the lock, the shackle and housing are constructed of substantially thick tubular metal, and the shackle ends may be conformed to openings in the housing. The longitudinal members may be extended post members which intersect inserted shackle ends or may be forked members which slidably engage flat portions on inserted shackle ends. The locking mechanism may be activated through a rack-and-pinion, cam-and-pin, or hook-and-pin assembly, and may further comprise shackle ends having flat sections conformed to the housing openings to prevent rotation. In another exemplary embodiment of the lock, the lock incorporates a second U-shaped shackle on the opposite side of the housing from the first shackle. The compact and integral design affords improved resistance to tampering such as by shattering or cutting/twisting methods.
REFERENCES:
patent: 263212 (1882-08-01), Pettibone
patent: 410027 (1889-08-01), Rueckert
patent: 1542016 (1925-06-01), Stull
patent: 1616449 (1927-02-01), Horak
patent: 2889451 (1959-06-01), Longo
patent: 3739607 (1973-06-01), Smedley
patent: 3754418 (1973-08-01), Miller
patent: 3924426 (1975-12-01), Zane et al.
patent: 3967475 (1976-07-01), Zane
patent: 3979931 (1976-09-01), Man
patent: 4070879 (1978-01-01), Thompson
patent: 4155231 (1979-05-01), Zane et al.
patent: 4290280 (1981-09-01), Yun
patent: 4545224 (1985-10-01), Zane
patent: 4584855 (1986-04-01), Burlingame
patent: 4881387 (1989-11-01), Kortenbrede
patent: 4918949 (1990-04-01), Newbold
patent: 4964706 (1990-10-01), Cook
patent: 5010746 (1991-04-01), Zane et al.
patent: 5092142 (1992-03-01), Zane et al.
patent: 5101646 (1992-04-01), Goldman et al.
Goldman David S.
Krigsman Craig L.
Cuomo Peter M.
Dino Suzanne L.
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