Closure fasteners – Operators with knobs or handles
Patent
1989-11-28
1990-07-17
Gall, Lloyd A.
Closure fasteners
Operators with knobs or handles
70218, 70422, 70472, 70476, 74527, 292252, 292359, 292DIG27, 464 36, E05B 1300
Patent
active
049416979
ABSTRACT:
An over-loading idling lock set having an actuating shaft connected to an indoor lock core and an outdoor sealing block wherein the sealing block is connected to an outdoor lock core, and plural ball members pushed by corresponding restricting springs are disposed between the sealing block and outdoor lock core whereby the ball members are partially extended into corresponding restricting holes formed on the sealing block to associate the outdoor lock core with the sealing block. By means of turning an indoor or outdoor handle, the actuating shaft is rotated to open the lock set. When closing the lock set, a controlling bolt is inserted into a longitudinal groove formed on the indoor lock core to lock the same and thus when turning the outdoor handle, the ball members are separate from the restricting holes due to insufficient spring force. Therefore, the outdoor handle can only idle without opening the lock set. In this position, the lock set can be unlocked via pushing the indoor handle to separate the controlling bolt from the longitudinal groove.
REFERENCES:
patent: 1840682 (1932-01-01), Sheldrick et al.
patent: 2525340 (1950-10-01), Clark
patent: 4073518 (1978-02-01), Goodwin
patent: 4641868 (1987-02-01), Miron
patent: 4762212 (1988-08-01), Fish et al.
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