US 3,953,991 AGranted

Lock construction

AssigneesAlbert M. Stein, Vincent G. Siliato, Paul Grossman, Elliot Daskal

InventorPaul M. Grossman

Life of this patent

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Abstract

A radio-operated lock construction is adapted to be mounted on a door and is positioned to engage a mating piece mounted on the adjacent door jamb to lock the door in the closed position. The lock comprises a lock housing having means for mounting the housing on the door. A drop bolt is movably mounted on the housing for movement between an extended position wherein the bolt engages with the mating piece and a retracted position wherein the bolt and mating piece are disengaged. The drop bolt comprises an operating member which is movable from a first position corresponding to the extended position of the bolt to a second position corresponding to the retracted position of the bolt. An opening slide is connected with the operating member and is movable upon actuation from a first to a second position to move the operate member from the first to the second position thereby retracting the drop bolt. A retainer in the form of a reciprocating plate is responsive to the movement of the opening slide to the second position to retain the operating member in its second position. Actuating means is connected to the opening slide for actuating the opening slide. The actuating device comprises a receiver responsive to the reception of a preselected signal for operating the opening slide whereby external openings on the face or front of the door for a key or the like are eliminated.

Claims14

Dependent claims

A lock construction for a door or the like comprising a mating piece adapted to be mounted on a door jamb;

said mating piece having at least an outwardly extending ear provided with an aperture;
and a lock mechanism adapted to be mounted on a door;
said lock mechanism comprising:
a lock housing having at least a slot sized and positioned to receive said mating piece ear therein when the door is closed, bolt means movably mounted on the housing for movement between an extended position wherein said bolt means extends through said ear aperture and a retracted position wherein said bolt means and said ear are disengaged, said bolt means comprising an outwardly extending pin movable from a lower position corresponding to the extended position of said bolt means to an upper position corresponding to the retracted position of the bolt means, and spring means for normally biasing said pin to said lower position whereby said bolt means is normally in the extended position;
a slide mounted for movement between an extended and a retracted position in said housing, biasing means for biasing siad slide to the extended position, a tapering slot in said slide receiving said pin therethrough whereby movement of said slide from said extended to said retracted position affects concomitant movement of said pin from said lower to said upper position, a retaining plate mounted for movement in said housing between a retracted and an extended position, said plate having a slot having a transverse portion receiving said pin therein for movement between said lower and upper positions, and a longitudinal portion positioned to be aligned with said pin when said pin is in said upper position, a spring normally biasing said plate to said extended position, whereyb said plate moves to the extended position when said pin is moved to the upper position to receive said pin in said longitudinal portion of said plate slot, striker means on said mating piece for moving said plate to said retracted position to permit movement of said pin to said lower position when said ear is received in said housing slot, and actuating means for moving said slide to said retracted position.

2 more elements

A lock mechanism for a door or the like adapted to engage the mating piece to lock the door comprising:

a lock housing
bolt means movably mounted on said housing for movement between an extended position wherein said bolt means engages with the mating piece and a retracted position wherein said bolt means and the mating piece are disengaged;
said bolt means comprising an operating member movable from a first position corresponding to the extended position of said bolt means to a second position corresponding to the retracted position of said bolt means, and spring means for normally biasing said operating means to said first position whereby said bolt means is normally in the extended position;
opening means connected with said operating means and movable upon actuation from a first to a second position to move said operating member from said operating member first position to said operating member second position;
retaining means for retaining said operating member in said second position;
actuating means connected to said opening means for actuating said opening means;
said retaining means being operable from a retracted position to an extended position when said retaining means retains said operating member in said second position, biasing means for normally urging said retaining means to the extended position;
and striker means adapted to be mounted on one of the door or a door jamb, mounting means on said lock housing for mounting said lock housing on the other of said door or door jamb, said striker means being positioned to engage and move said retaining means to the retracted position as the door is closed to permit movement of said operating member to the first position, whereby said bolt means is moved to the extended position to engage with the mating piece, said operating member comprising a projecting pin, and said opening means comprising a slide within said housing mounted for movement between an extended position corresponding to said first position of said opening means and a retracted position corresponding to said second position of said opening means, a tapering slot in said slide receiving said pin therethrough and positioned to move said pin from a lower position corresponding to said operating member first position to an upper position corresponding to said operating member second position when said slide is moved from the extended to the retracted position, said actuating means comprising biasing means for normally biasing said slide to the extended position.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/497,518Filed 15 Aug 1974
Granted: 4 May 1976
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G07C 9/00182
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers…:…
G07C 2009/00793
With data transmission performed by wireless means: by Hertzian waves
G07C 2209/08
Indexing scheme relating to groups G07C9/00 - G07C9/38: with time considerations, e.g. temporary activation, valid time window or time limitations
Y10S 292/65
Closure fasteners: emergency or safety