Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Patent
1996-09-10
1999-02-02
Thorpe, Timothy
Pumps
One fluid pumped by contact or entrainment with another
Liquid pumped by supplying or exhausting gaseous motive...
F04B 908
Patent
active
058656030
ABSTRACT:
A snap-over toggle linkage valve actuating mechanism for alternately opening and closing a gas inlet valve and a gas outlet valve utilizes a plurality of stiff compression coil springs of an axial length preferably less than four times the coil turn diameter mounted between oppositely facing end plates, with the compression coil ends carried by circular bosses symmetrically positioned on the faces of the opposing faces of the end plates bearing the coil springs and constituting a second toggle link for the snap-over valve actuating mechanism. A gas pressure and a vent valve assembly consists of a valve actuator rod operatively coupled to the first toggle link and terminating in a right angle valve actuator plate fixed thereto at an off center lateral position. The valve actuator plate detachably mounts a valve stem of a poppet type vent valve whose large diameter plug seats in a chamfered valve seat radially outward of a combined guide plate and valve seat.
REFERENCES:
patent: Re34957 (1995-05-01), Armand
patent: 5141405 (1992-08-01), Armand
patent: 5426990 (1995-06-01), Armand
Moses Daniel E.
Thorpe Timothy
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