Invertable pump for liquid media

Details Invertable pump for liquid media Invertable pump for liquid media

1986-04-23

1988-10-11

Shaver, Kevin P.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222376, 222385, 22240219, 239334, B05B 9043, B05B 1102

Patent

active

047764988

ABSTRACT:
The thrust piston pump of a delivery apparatus for liquid media and the like is provided with a valve arrangement in the suction passage. The valve arrangement has two valve seats acting in opposing manner and is associated with a single common valve body. This permits a rapid transfer of the valve body into the closed position engaging on the valve seat, particularly during operation in an inverted position. In addition, the discharge passage has a mechanically openable discharge valve which can be simply opened by displacing the actuating head of the pump with respect to a collar of the pump piston.

REFERENCES:
patent: 2332007 (1943-10-01), Parker
patent: 3185354 (1965-05-01), Lipman
patent: 3211346 (1965-10-01), Meshberg
patent: 3414169 (1968-12-01), Corsette
patent: 3556353 (1971-01-01), Echols
patent: 3640470 (1972-02-01), Susuki et al.
patent: 3724726 (1973-04-01), Susuki et al.
patent: 3908870 (1975-09-01), Nozawa et al.
patent: 4117957 (1978-10-01), Duffey
patent: 4174790 (1979-11-01), Nozawa et al.
patent: 4193551 (1980-03-01), Saito et al.
patent: 4277001 (1981-07-01), Nozawa
patent: 4371098 (1983-02-01), Nozawa et al.
German Search Report for Appln P 35 17 558.3.

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