Hand-held vacuum pump

Details Hand-held vacuum pump Hand-held vacuum pump

1986-09-05

1989-02-21

Neils, Paul F.

Pumps

Expansible chamber type

Having separate noncyclic valve

417566, 417569, 92194, F04B 4100, F04B 3910

Patent

active

048060844

ABSTRACT:
A small and compact vacuum pump which serves as a postable vacuum source is disclosed. The pump includes a cylinder coupled with one handle and a piston therein coupled with another handle, along with a wafer valve assembly for allowing a vacuum to be drawn at an inlet of the pump. A previous version of the pump is improved upon by the use of different valve assemblies, to produce a more reliable, more easily assembled and less expensive vacuum pump. A vacuum release mechanism is provided operable with a finger of the hand about the handle.

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Photograph of Neward Vacuum Pump.

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