On/off switch for liquid additive injection pump

Details On/off switch for liquid additive injection pump On/off switch for liquid additive injection pump

2005-06-28

2005-06-28

Look, Edward K. (Department: 3745)

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

Cyclically operable motor with port reversing

C091S322000, C091S330000, C091S331000

Reexamination Certificate

active

06910405

ABSTRACT:
Operation of a system for injecting a predetermined amount of a secondary fluid into a primary fluid stream. The system uses a liquid additive injection pump driven by a fluid powered motor that is driven by the primary fluid stream and can be selectively suspended by an on/off switch mechanism. The fluid powered motor includes a housing enclosing a differential pressure piston assembly having a piston movable within housing between upstroke and down stroke positions; a valve mechanism establishing a differential pressure within the housing to produce movement of the piston; an over-center mechanism coupled to the valve mechanism to toggle the valve mechanism between open and closed positions; and an actuating shall coupled to the over-center mechanism.

REFERENCES:
patent: 3228560 (1966-01-01), Tacchi
patent: 3610264 (1971-10-01), Flagg
patent: 4809731 (1989-03-01), Walton et al.
patent: 5137435 (1992-08-01), Walton
patent: 5513963 (1996-05-01), Walton
patent: 5951265 (1999-09-01), Bryant
patent: 6684753 (2004-02-01), Urrutia

Affiliated with

Also associated with

Rating

On/off switch for liquid additive injection pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On/off switch for liquid additive injection pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On/off switch for liquid additive injection pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3464869