Decompression device for suction pumps

Details Decompression device for suction pumps Decompression device for suction pumps

1991-02-04

1991-11-12

Shaver, Kevin P.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222385, 239333, 417435, B05B 1102

Patent

active

050641050

ABSTRACT:
A decompression device for suction pumps having a pumping chamber and a plunger formed with a resilient lower lip, which in the end-of-stroke position reaches a lower limit level and which comprises at least one protuberance in the surface of the pumping chamber extending on both sides of the lower limit level and determining a lower edge and an upper edge, between which at least one continuous slot extends.

REFERENCES:
patent: 3774849 (1973-11-01), Boris
patent: 4051983 (1977-10-01), Anderson
patent: 4437588 (1984-03-01), Shay
patent: 4895279 (1990-01-01), Schultz
patent: 4941595 (1990-07-01), Montaner

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