US4099764A — Overhead door locking device

Claim 1

Independent Claim 380 words

A locking device for at least one overhead door which includes a plurality of superimposed hinged-together sections to fit in a frame structure having door-supporting tracks, the sides of the door being supported and slidable within said tracks for upwardly opening and downwardly closing movements of the door, said locking device comprising: (a) an elongate rod member mounted to extend in closely spaced parallel relationship with the upper edge of the door in the downwardly closed position of the latter, said rod member being supported by said frame structure for rotation about its longitudinal axis; radially projecting means being fastened to said rod member for concommitant rotation therewith intermediate the ends thereof so as to be pivotable into and out of engagement with the upper edge of the downwardly closed door; (b) radially extending arm means having one end thereof rigidly fastened to one end of said rod member, said arm means being rotatable conjointly with said rod member; (c) elongate lever means having a first end thereof pivotally connected to the distal end of said arm means; (d) and actuating means mounted on a fixed support on said frame structure operatively connected to a second end of said elongate lever means, said actuating means including a pivotable lever fastened to said fixed support and having first and second lever arm portions extending oppositely radially thereof, the distal end of said first lever arm portion being pivotally connected to said second end of said elongate lever means and said second lever arm position forming a handle portion for imparting rotational movement thereto, rotation of said pivotable lever in a predetermined direction causing said elongate lever means to rotate said rod member and the radially projecting means and the latter to engage the upper edge of an associated closed door; and biasing means operatively interconnecting the pivot between said elongate lever means and first lever arm portion and a projection mounted on said fixed support so as to impart a biasing force to said pivotable lever portion in the direction of rotation thereof whereby said biasing force is transmitted through said elongate lever means to said rod member and radially projecting means to cause the latter to push and maintain said closed door in a fully downwardly closed and locked condition.

Claim 2

Dependent Claim 380 words

A locking device for at least one overhead door which includes a plurality of superimposed hinged-together sections to fit in a frame structure having door-supporting tracks, the sides of the door being supported and slidable within said tracks for upwardly opening and downwardly closing movements of the door, said locking device comprising: (a) an elongate rod member mounted to extend in closely spaced parallel relationship with the upper edge of the door in the downwardly closed position of the latter, said rod member being supported by said frame structure for rotation about its longitudinal axis; radially projecting means being fastened to said rod member for concommitant rotation therewith intermediate the ends thereof so as to be pivotable into and out of engagement with the upper edge of the downwardly closed door; (b) radially extending arm means having one end thereof rigidly fastened to one end of said rod member, said arm means being rotatable conjointly with said rod member; (c) elongate lever means having a first end thereof pivotally connected to the distal end of said arm means; (d) and actuating means mounted on a fixed support on said frame structure operatively connected to a second end of said elongate lever means, said actuating means including a pivotable lever fastened to said fixed support and having first and second lever arm portions extending oppositely radially thereof, the distal end of said first lever arm portion being pivotally connected to said second end of said elongate lever means and said second lever arm position forming a handle portion for imparting rotational movement thereto, rotation of said pivotable lever in a predetermined direction causing said elongate lever means to rotate said rod member and the radially projecting means and the latter to engage the upper edge of an associated closed door; and biasing means operatively interconnecting the pivot between said elongate lever means and first lever arm portion and a projection mounted on said fixed support so as to impart a biasing force to said pivotable lever portion in the direction of rotation thereof whereby said biasing force is transmitted through said elongate lever means to said rod member and radially projecting means to cause the latter to push and maintain said closed door in a fully downwardly closed and locked condition.

Claim 3

Dependent Claim 16 words

A locking device as claimed in claim 1, wherein said biasing means comprise a tension spring.

Claim 4

Dependent Claim 32 words

A locking device as claimed in claim 2, wherein said tension spring interconnects said first lever arm portion and said projection for effecting over-the-center movements responsive to rotation of said pivotable lever.

Claim 5

Dependent Claim 45 words

A locking device as claimed in claim 1, wherein said at least one overhead door is mounted on a vehicle body providing at least one compartment for the storage of goods, said device being supported on frame portions of said vehicle body adjacent said door.

Claim 6

Dependent Claim 88 words

A locking device as claimed in claim 4, including a plurality of overhead doors positioned in contiguous and coplanar relationship, said rod member being of a length commensurate with the collective width of said plurality of doors; and a plurality of said radially projecting means being fastened to said rod member in axially spaced relationship, at least one of each of said radially projecting means being in axial alignment with respectively one of said doors whereby said locking device is adapted to simultaneously lock said plurality of doors.

Claim 7

Dependent Claim 47 words

A locking device as claimed in claim 5, wherein said overhead doors are mounted on a vehicle body providing a plurality of compartments for the storage of goods, said device supported on end walls of said vehicle adjacent an endmost one of said plurality of said doors.

Claim 8

Dependent Claim 118 words

In a locking device for locking at least one overhead door in a downwardly closed position, a plurality of articulated operatively interconnected levers; a stationarily positioned mounting element; means for locking said door responsive to predetermined manipulation of said levers; and a tension spring biasing means, operatively interconnecting a pivot between two of said articulated, operatively interconnected levers and said stationarily positioned mounting element, for effecting an over-the-center movement between a first position of the spring, wherein the tension spring urges the levers into first positions to lock said door into a fully closed locked position, and a second position of the spring wherein the tension spring urges the levers into second positions wherein the door is unlocked.

Claim 9

Dependent Claim 118 words

In a locking device for locking at least one overhead door in a downwardly closed position, a plurality of articulated operatively interconnected levers; a stationarily positioned mounting element; means for locking said door responsive to predetermined manipulation of said levers; and a tension spring biasing means, operatively interconnecting a pivot between two of said articulated, operatively interconnected levers and said stationarily positioned mounting element, for effecting an over-the-center movement between a first position of the spring, wherein the tension spring urges the levers into first positions to lock said door into a fully closed locked position, and a second position of the spring wherein the tension spring urges the levers into second positions wherein the door is unlocked.

Claim 10

Dependent Claim 21 words

A locking device as claimed in claim 7, including a plurality of doors adapted to be simultaneously locked by said levers.

Claim 11

Dependent Claim 21 words

A locking device as claimed in claim 7, for use in locking at least one overhead door of a transport vehicle.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-07-10	1982-01-09	1982-07-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-07-10	1986-01-09	1986-07-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-07-10	1990-01-09	1990-07-11	$7700.00	Window Closed / Lapsed

Overhead door locking device

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