Fluid handling – Inflatable article – Stem attached relief valve
Patent
1997-05-08
1998-12-29
Rivell, John
Fluid handling
Inflatable article
Stem attached relief valve
137231, 137524, 137539, F16K 1520
Patent
active
058530215
ABSTRACT:
A new Pressure Limiting Tire Deflator System for deflating a tire to a pre-selected pressure for increasing traction during travel within loose dirt or sand. The inventive device includes a spherical head formed for engaging a valve stem, an elongated neck, an air passage projecting through the spherical head and through the elongated neck, a plurality of air release passages, and a pressure limiter within the air passage. The pressure limiter is adjustable for preventing air pressure within the tire from falling below the pre-selected pressure.
REFERENCES:
patent: 1104902 (1914-07-01), Javris
patent: 1769240 (1930-07-01), Smith
patent: 1815533 (1931-07-01), Vincent
patent: 2505949 (1950-05-01), Vilbiss
patent: 3148707 (1964-09-01), Smyklo
patent: 5035261 (1991-07-01), Koiwa
Rivell John
Schoenfeld Meredith H.
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