Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1978-06-29
1980-07-29
Gluck, Richard E.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
F04D 4312, F24B 4508
Patent
active
042148553
ABSTRACT:
A peristaltic type pump comprising a pump housing having a circular supporting track for a pump hose and a member mounted rotatably within the pump housing. The member has at two diametrically opposite points, seen in radial direction, dimensions that are substantially equal to the internal radius of the supporting track reduced by the thickness of the pump hose in squeezed shut condition. The rotatable pumping member has a substantially elliptical shape, while the pump hose can be squeezed shut by flattened portions of the pumping member which are substantially perpendicular to the ends of the major axis of said ellipse. The lengths of said portions in tangential direction is substantially equal to the internal diameter of the pump hose, while said flattened portions are adapted for sliding movement over the pump hose when the pumping member is rotating.
REFERENCES:
patent: 1596933 (1926-08-01), Kister et al.
patent: 2849962 (1958-09-01), Musser
patent: 3011684 (1961-12-01), Corneil
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