Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1984-05-14
1985-06-25
Cohan, Alan
Fluid handling
Line condition change responsive valves
Direct response valves
137DIG2, 251347, 251348, 251354, F16K 1518, F16K 3158
Patent
active
045248001
ABSTRACT:
A one-way brake bleeder check valve is shown for use in bleeding entrapped air from the hydraulic wheel brake cylinders of automobiles and the like. This brake bleeder valve has a one-piece valve body that is mounted as a permanent part of a wheel brake cylinder. This valve body includes a longitudinal passage with a first section having its innermost end provided with a recessed valve seat. A second section of the passage is of larger diameter for receiving an adjustable valve sealing cap by means of a threaded connection. Positioned within the second section is a valve element for cooperation with the said recessed valve seat. The sealing cap has an innermost end provided with a second recessed valve seat in cooperation with a longitudinal passage through the cap that includes a compression spring that normally bears on the valve element to seal the valve element against the first recessed valve seat. When the valve sealing cap is closed the valve element is in sealing engagement with both the first recessed valve seat and the second recessed valve seat so that no air can become entrapped between the valve element and the sealing cap.
REFERENCES:
patent: 816006 (1906-03-01), Duryea
patent: 1254716 (1918-01-01), Madeksho
patent: 1275783 (1918-08-01), Steinmetz
patent: 1521081 (1924-12-01), Dooling
patent: 1564507 (1925-12-01), Barker
patent: 1706070 (1929-03-01), Methudy
patent: 2175718 (1939-10-01), Litle, Jr.
patent: 2688300 (1954-09-01), Works
Caslin Richard L.
Cohan Alan
Rivell John A.
Robbins Robert E.
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