Manually operated dual invertible pump

Details Manually operated dual invertible pump Manually operated dual invertible pump

1986-04-10

1989-04-25

Bartuska, F. J.

Dispensing

With discharge assistant

Plural

222278, 222321, 222376, 417526, B65D 802, B67D 542, B67D 552

Patent

active

048239917

ABSTRACT:
A manually operated dispensing pump has dual pump mechanisms, one pump being operable in a normal upright position and the other pump being operable when the apparatus is inverted. The dual pumps are fed from the same storage vessel for the media to be pumped. A preferred embodiment arranges the dual pumps successively along the same axis, each having suction ports and valves operable to enable the respective pump when the apparatus is correctly positioned and to seal off the pump when the other pump is enabled.

REFERENCES:
patent: 211168 (1879-01-01), Loudon
patent: 1470469 (1923-10-01), Nybakken
patent: 1514724 (1924-11-01), Pittman
patent: 2765963 (1956-10-01), Langguth
patent: 2792974 (1957-05-01), Smith et al.
patent: 3760986 (1973-09-01), Castner et al.
patent: 4140249 (1979-02-01), Majima
patent: 4249681 (1981-02-01), French
patent: 4277001 (1987-07-01), Nozawa
patent: 4371098 (1983-02-01), Nozawa et al.
Search Report for German Appln. P 3513575.1.

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