The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 1990
Filed:
Aug. 30, 1989
Walter Olbrisch, Bielefeld, DE;
Wolfgang Suttner, Bielefeld, DE;
Suttner GmbH & Co. KG, , DE;
Abstract
A hose pump with a pump casing (1) has a hose (2) running in a closed manner through it. The hose (2) rests on a support wall (3) of the pump casing (1) and compression elements (4, 5) squeeze-off the hose (2) in at least two places. A drive (6) for the movement of the compression elements (4, 5) becomes considerably more economical because the hose (2) is located between the support wall (3) and compression plate (9) and is sharply bent around an end of compression plate (9) that serves as the first compression element (4) with a bend of about 180.degree., and the second compression element (5) is placed opposite the support wall (3) on the other end of compression plate (9). The compression plate (9) and second compression element (5) can be moved back and forth by the drive (6) between a first pump position (I) and second pump position (II), the second compression element (5) being further from support wall (3) in the first pump position (I) than in the second pump position (II). In first pump position (I) hose (2) is essentially relaxed and second compression element (5) does not squeeze it off, and on the way from first pump position (I) to second pump position (II), the second compression element (5) and then the compression plate (9) squeezes off the hose.