Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1975-12-15
1978-09-26
Schwadron, Martin P.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
91 19, 91 32, 91376R, F16K 1116
Patent
active
041162188
ABSTRACT:
A sequential valve mechanism for power brake units moves in one direction for sequentially connecting a chamber to three different pressure sources, and moves in an opposite direction for sequentially connecting the chamber to the different pressure sources in reverse order.
REFERENCES:
patent: 3174285 (1965-03-01), Stelzer
patent: 3434388 (1969-03-01), Julow
patent: 3661054 (1972-05-01), Brown
patent: 3678959 (1972-07-01), Liposky
patent: 3719044 (1973-03-01), Bach
patent: 3780620 (1973-12-01), Gardner
patent: 3921501 (1975-11-01), Rosback
patent: 3937126 (1976-02-01), Grabb
Acre Sydney R.
Lake, Sr. Marquis J.
Hershkovitz Abraham
Midland-Ross Corporation
Schwadron Martin P.
Switzer H. Duane
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