Locks – Special application – For control and machine elements
Patent
1990-12-11
1992-02-25
Gall, Lloyd A.
Locks
Special application
For control and machine elements
70178, 70225, 70232, 70237, 116 33, 137 681, 137223, B60R 2500, F16K 3510
Patent
active
050902237
ABSTRACT:
A substantially "U" shaped break-away-bar assembly is constructed to a size and configuration to fit about a portion of an air-inflated vehicle tire. A key actuated lock latching assembly is carried by the break-away-bar assembly and includes an internally threaded connection member utilized to selectively connect the latching assembly to the external threads normally provided on a valve-stem of a tire rim for an air inflated vehicle tire. Operation of the key actuated lock to its locked condition prevents disconnection of the latching assembly from the valve stem. When the break-away-bar assembly is positioned about the vehicle tire and the latching assembly threadably connected to the valve stem rotation of the vehicle tire so that the bar assembly moves beneath the tire, rips the valve stem out of its seat and permits relatively rapid escape of the air from the tire. Slip joints provided for the break-away-bar assembly permit selective adjustment thereof to accommodate different size tires. Angular disposition of a cross-arm connecting spaced legs of the break-away-bar assembly together result in coaction of the tire and break-away-bar assembly to either pull the valve stem down and out or up and in and out.
REFERENCES:
patent: 1426119 (1922-08-01), Southard
patent: 1538843 (1925-05-01), Stanley
patent: 4375200 (1983-03-01), Bertani et al.
patent: 4651849 (1987-03-01), Givati
patent: 4969342 (1990-11-01), Marchiori
Furgang Philip
Gall Lloyd A.
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