Pumps – Expansible chamber type – Fluid serially moved to opposite side of pumping member
Patent
1988-03-07
1989-07-25
Smith, Leonard E.
Pumps
Expansible chamber type
Fluid serially moved to opposite side of pumping member
92247, F04B 2104
Patent
active
048508268
ABSTRACT:
A hand operated pump for liquids including dirty water and the like, which includes a cylindrical chamber having a foot valve at its lower end and reciprocal plunger including a rod mounted slidably in the upper end of the cylindrical chamber. The plunger includes a rod and a bellows of flexible sheet material including a generally circular central portion which is attached at its center to the end of the rod. A plurality of legs extending radially from the central portion are also attached to the rod a short distance from its end, so that the bellows can fill with liquid and expand radially to engage the interior of the chamber sealingly as the plunger moves up, and leaving the bellows free to collapse radially inwardly against the rod as the plunger moves downward within the lift chamber.
REFERENCES:
patent: 1507134 (1924-09-01), Mowers
patent: 1756678 (1930-04-01), Cumming
patent: 2463458 (1949-03-01), Freyn
patent: 2476545 (1949-07-01), Hayward
patent: 2634684 (1953-04-01), Alvarez et al.
patent: 2913293 (1959-11-01), Dibley et al.
patent: 2915986 (1959-12-01), Sisson
patent: 2951620 (1960-09-01), Sego
patent: 3029742 (1962-04-01), Curtis
patent: 3062415 (1962-11-01), Anderson
patent: 3094076 (1963-06-01), Hyde
LandOfFree
Suction pump with collapsible bellows does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction pump with collapsible bellows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction pump with collapsible bellows will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2354190