Locking cover for dead bolt actuators

Details Locking cover for dead bolt actuators Locking cover for dead bolt actuators

1996-10-15

1999-02-02

Gall, Lloyd A.

Locks

Operating mechanism

Key

70471, 70476, 70482, 70483, 70DIG62, 295150, 295347, E05B 1308

Patent

active

058650504

ABSTRACT:
A locking cover for a dead bolt lock assembly that permits a user to put it in one of three positions: neutral, locked and unlocked. The cover in the neutral position permits the operation of the bolt lock assembly normally. The other positions limit the rotational travel of the actuating shaft to one quarter of a turn. The actuating shaft is rotated by turning the locking cover that includes a central tubular cylinder for selective engagement with the actuating shaft. A pin mounted on the interior of the cover is receivable within one of three holes on an annular base plate that limits the rotation of the actuating shaft.

REFERENCES:
patent: 1495820 (1924-05-01), Tierney
patent: 5000498 (1991-03-01), Upchurch
patent: 5313812 (1994-05-01), Eklund et al.
patent: 5421074 (1995-06-01), Moore
patent: 5515704 (1996-05-01), Van Nguyen
patent: 5551188 (1996-09-01), Davlantes

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