Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1992-03-27
1993-10-19
Neuder, William P.
Road structure, process, or apparatus
Traffic steering device or barrier
256 1, E01F 1300
Patent
active
052539504
ABSTRACT:
An improved vehicle tire deflator that is a foldable and can be deployed by pushing it or pulling it to an extended attitude across at least one full traffic lane. The deflator includes a plurality of rocker arms that are each pivotally coupled to base supports, forming a frame that is collapsible and when extended, includes a stop arrangement for holding the rocker arms apart. The rocker arms each include a plurality of actuators that incorporate spaced center holed and countersunk spike base bosses, each boss to accommodate an end of a hollow spike and attached resilient grommet fitted therein. When a tire rolls onto a rocker arm actuator, that rocker arm is canted towards the rolling tire tread, directing a hollow spike sharp and into the tire tread to lodge therein as the tire continues to roll over the actuator, the resilient grommet absorbing forces as are exerted by the tire rolling over the hollow spike pointed end and the hollow spike is pulled out from its spike base boss seat and travels fully into the tire, allowing air from within that tire to vent therethrough. Alternatively, for penetrating a steel belted tire, or the like, an insert that is formed of a hard steel, or the like, and has a pointed end can be fitted longitudinally into and maintained in which hollow spike, the insert pointed end to extend beyond the hollow spike pointed end to first contact the tread of a tire rolling thereover.
REFERENCES:
patent: 4995756 (1991-02-01), Kilgrow et al.
Kilgrow Donald C.
Pedersen Melvin H.
Neuder William P.
Russell M. Reid
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