Hydraulic fluid devices

Details Hydraulic fluid devices Hydraulic fluid devices

1975-07-16

1977-05-03

Freeh, William L.

Pumps

Motor driven

Fluid motor

417367, F04B 908

Patent

active

040211487

ABSTRACT:
A pump with a plunger assembly that is received within an outer housing containing a fluid. The plunger assembly includes a slidable sleeve portion defining a vertical channel. A pair of flexible membranes form outer and inner chambers within the vertical channel, one of the flexible membranes constituting a common wall that separates the chambers. A charging fluid is fed to the outer chamber through an inlet valve and exits therefrom through an exhaust valve. A fluid to be pumped is fed to the inner chamber through an inlet valve and exits therefrom through an exhaust valve. The charging fluid governs the interior profile within the vertical channel for providing variable pressure to volume ratios within the chambers.

REFERENCES:
patent: 1389635 (1921-09-01), Dunkle
patent: 1764712 (1930-06-01), Brackett et al.
patent: 2102665 (1937-12-01), Allen
patent: 2505198 (1950-04-01), Moskowitz et al.
patent: 2795196 (1957-06-01), Moskowitz
patent: 2915016 (1959-12-01), Weaver et al.

Affiliated with

Also associated with

Rating

Hydraulic fluid devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic fluid devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic fluid devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342565