Brake bleeder screw

Details Brake bleeder screw Brake bleeder screw

1990-01-22

1990-12-25

Walton, George L.

Fluid handling

Line condition change responsive valves

Direct response valves

137538, 188352, 251285, F16K 1106

Patent

active

049795414

ABSTRACT:
This invention is an improved brake bleeder screw for use in the removal of entrapped gases from a vehicle's hydraulic wheel brake system. It is comprised of a discharge section containing external threads and an internal passageway, an extending device such as a compression spring, which is partially contained within an internal passageway of the discharge section and a sealing mechanism with an internal passageway, a head and an opening from the outside of the sealing mechanism to the internal passageway of the sealing mechanism. This improved brake bleeder screw can be substituted for existing hydraulic brake bleeder valves and permits the one-person bleeding of a hydraulic brake system.

REFERENCES:
patent: 568572 (1896-09-01), Hewson
patent: 2046228 (1936-06-01), Weidmann et al.
patent: 2064573 (1936-12-01), Tatter
patent: 2771093 (1956-11-01), Wilson
patent: 3050080 (1962-08-01), Pagano
patent: 3913619 (1975-10-01), Aulner, Sr. et al.
patent: 4479511 (1984-10-01), Holland
patent: 4524800 (1985-06-01), Holland

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