Closure fasteners – Cross bars – Vehicle door latches
Patent
1982-03-01
1984-02-07
Smith, Gary L.
Closure fasteners
Cross bars
Vehicle door latches
292244, 292272, E05C 1918, E05C 1706
Patent
active
044299117
ABSTRACT:
A security bar system for physically preventing unwanted opening of a door. The system preferably comprises an elongated, rigid, generally cylindrical bar which is adapted to extend in front of the door between a pair of mounting brackets. The door bar terminates at its opposite ends in flange members which are separated from the major length of the bar by reduced diameter segments of predetermined length. The door bar is adapted to axially penetrate, and be restrained by and between, the bracket members. Each bracket member includes a symmetrical slot geometry whereby to permit mounting of the system in either a right or left sided application. A first mounting bracket includes an elongated slot, the center of which is provided with a clearance hole to axially receive one bar flange. The reduced diameter segment of the door bar tracks within the extremities of the slot. The opposite door bracket includes a generally T-shaped slot, the intersection of horizontal and vertical portions of the slot admitting the opposite door bar flange. Similarly, the reduced diameter segment of the door bar tracks within the slots, and tracking within the horizontal slot permits the door to be opened a predetermined amount without sacrificing security integrity.
REFERENCES:
patent: 1722736 (1929-07-01), Derbyshire
patent: 3167840 (1965-02-01), Hoffman
patent: 3806179 (1974-04-01), Roessle
patent: 3971582 (1976-07-01), Walker
patent: 4017104 (1977-04-01), Walker
patent: 4082332 (1978-04-01), Palmer
patent: 4119336 (1978-10-01), Sparrevohn
patent: 4335910 (1982-06-01), Massie
Grasby James L.
O'Neal William C.
Carver Stephen D.
Illich R.
Smith Gary L.
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