Locks – Operating mechanism – Key
Patent
1994-01-31
1995-09-05
Cuomo, Peter M.
Locks
Operating mechanism
Key
70DIG20, 70DIG79, 70491, E05B 2708
Patent
active
054470498
ABSTRACT:
An improved push-button locking device has an outer sleeve in which an inner sleeve is received. The inner sleeve is used to receive therein a locking rod, a front ring seat, a rear ring seat, and a plurality of front and rear retaining tenons and urging springs. The outer sleeve is provided in the wall thereof with a bar hole. A locating pin is fastened to the wall of the inner sleeve such that the locating pin extends into the bar hole for enabling the inner sleeve to move axially within the bar hole. A retrieving spring is located between the inner sleeve and the outer sleeve for enabling the inner sleeve to remain outwards in the absence of an external force. The locking rod is provided with an extra portion capable of extending outwards through the axial hole of the outer sleeve. The axial hole is provided in the wall thereof with a recess in which a compression spring and an urging pin are disposed. The extra portion is provided with a horizontal tangent slot engageable with the urging pin so as to arrest the inner sleeve when the inner sleeve is pushed inwardly for a predetermined distance.
REFERENCES:
patent: 2046831 (1936-07-01), Lowe
patent: 3910082 (1975-10-01), Patriquin
patent: 4009599 (1977-03-01), Patriquin
patent: 4418554 (1983-12-01), Wolfgang
patent: 5020349 (1991-06-01), Lee
patent: 5036683 (1991-08-01), Geuvjehizian
patent: 5133203 (1992-07-01), Huang
patent: 5349835 (1994-09-01), Liao
Boucher Barnell M.
Cuomo Peter M.
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