Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1996-07-19
1997-08-12
Dougherty, Elizabeth L.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
116 34R, B60C 2304
Patent
active
056567723
ABSTRACT:
A handheld detachable gas pressure gauge shaped like a hypodermic syringe. The gas pressure gauge has an upper pair of side arms mounted perpendicular to an inner cylinder and a lower pair of side arms each below and parallel to each of the upper pair of side arms. A socket in the inner cylinder has pivotal gripping fingers for grasping about a gas pressure valve. Compressing the upper and lower arms together moves the gripping fingers inwardly to grip about the valve which depresses a spring loaded valve core and allows pressure to be measured. Various embodiments use an extendible metering stick, a digital readout, and a dial gauge/Bourdon tube to measure the pressure. Extra attachments include an angled head for improved accessibility to valves located in confined areas, a side adapter socket for allowing gas to be added, a purge button to allow the gauge to release excessive gas pressure and a locking lever for allowing the gas pressure gauge to remain clamped about the valve.
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Dougherty Elizabeth L.
Felber Joseph L.
Heyman John
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