| CPC F16K 15/044 (2013.01) [B60C 29/005 (2013.01); B60C 29/06 (2013.01); F16K 15/20 (2013.01); Y10T 137/3724 (2015.04)] | 16 Claims |

|
1. A pneumatic valve adapter configured to couple with a valve stem of a bicycle tire, the pneumatic valve adapter comprising:
a cap member having a pin passage therethrough having a first diameter and having a circumferential concavity on an outer diameter;
a receiver coupled to the cap member and having a fastener configured to removably couple with the valve stem, the receiver having a first opening on an end that is fluidly coupled to a central passage, the first opening having a second diameter;
a seal having a circular shape and a circular cross-section, the seal disposed between the cap member and the end of the receiver, the seal having a second hole with a third diameter that fluidly couples the first opening and the pin passage, the third diameter being smaller than the first diameter;
a biasing member disposed in the central passage;
a sealing member movably disposed within the central passage and biased against the seal by the biasing member, the sealing member being movable between a first position engaging the seal and a second position separated from the seal and allowing a flow of gas from the pin passage to the central passage; and
an actuator pin at least partially disposed in the receiver, the actuator pin being sized to extend into the valve stem of the bicycle tire;
wherein the actuator pin displaces a plug in the valve stem when the pneumatic valve adapter is coupled to the valve stem allowing the flow gas through the valve stem;
wherein the actuator pin is fixed relative to the receiver.
|