Locks – Portable – Padlocks
Patent
1986-12-31
1987-12-08
Wolfe, Robert L.
Locks
Portable
Padlocks
E05B 6736
Patent
active
047111062
ABSTRACT:
A locking device which may be used in locking two objects together, includes a stud having a threaded axial hole extending rearwardly from the forward end thereof and a keyed portion having at least one key, and a knob which locks over a forward portion of the stud and includes a casing with an inner surface including at least one keyway each of which receives the corresponding key on the stud to prevent rotation of the casing with respect to the stud. The knob also includes a tumbler housing which is mounted in an axially fixed position within the casing to rotate freely when a key is inserted into the tumbler housing, and to remain locked in a fixed position when the key is withdrawn. Connected to a rear end of the tumbler housing is a threaded stud which engages the threaded axial hole of the stud when the tumbler housing is turned by a key to thereby pull a forward portion of the stud into the casing hole.
REFERENCES:
patent: 1444214 (1923-02-01), Shultz
patent: 1491691 (1924-04-01), Godshalk
patent: 1828658 (1931-10-01), Henke, Jr.
patent: 1971797 (1934-08-01), Shinn
patent: 2999377 (1961-09-01), Raye
patent: 3139291 (1964-06-01), Geresy
patent: 3605457 (1971-09-01), Foster
patent: 4428211 (1984-01-01), Hermann
patent: 4619122 (1986-10-01), Simpson
Advertising Sheet for "New Deadbolt Safety for Hi-Lo Utility Hitches", by C. T. Johnson Enterprises.
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