Combination of a chamber and a piston, a pump, a motor, a...

Details Combination of a chamber and a piston, a pump, a motor, a... Combination of a chamber and a piston, a pump, a motor, a...

2002-03-27

2008-09-09

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Effective area of working member end face selectively variable

With diaphragm

C092S247000, C092S250000

Reexamination Certificate

active

07421939

ABSTRACT:
A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall and comprising an elastically deformable piston comprising a container in said chamber to be sealingly movable relative to said chamber at least between first and second longitudinal positions of said chamber, said chamber having cross-sections of different cross-sectional areas at the first and second longitudinal positions of said chamber and at least substantially continuously different cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions thereof, the cross-sectional area at the first longitudinal position being larger than the cross-sections area at the second longitudinal position, said piston including a piston body and sealing means supported by the piston body being designed to adapt itself and said sealing means to said different cross-sectional areas of said chamber during the relative movements of said pistion from the second longitudinal position through said intermediate longitudinal positions to the first longitudinal position of said chamber.

REFERENCES:
patent: 1536426 (1925-05-01), Deakins et al.
patent: 1678365 (1928-07-01), Sutliff
patent: 2710077 (1955-06-01), Fabel et al.
patent: 2023715 (1980-01-01), None
patent: 2070731 (1981-09-01), None
patent: 0065235 (2000-11-01), None
patent: 0070227 (2000-11-01), None

Affiliated with

Also associated with

Rating

Combination of a chamber and a piston, a pump, a motor, a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combination of a chamber and a piston, a pump, a motor, a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination of a chamber and a piston, a pump, a motor, a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3991437