Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1989-08-30
1990-08-14
Smith, Leonard E.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
417479, 604153, F04B 4308
Patent
active
049483501
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.
REFERENCES:
patent: 2816514 (1957-12-01), Freese
patent: 3170360 (1965-03-01), Walton
patent: 3182602 (1965-05-01), Price
patent: 3418940 (1968-12-01), Martin
patent: 3518033 (1970-06-01), Anderson
patent: 3778195 (1973-12-01), Bamberg
patent: 4015914 (1977-04-01), Kushner et al.
patent: 4252447 (1981-02-01), Borodin
patent: 4479797 (1984-10-01), Kobayashi et al.
patent: 4501405 (1985-02-01), Usry
Lexicon of Technology (Lexikon der Technik), vol. 7, Lexicon of Power Technology and Engines, DVA, Stuttgart, 1965, p. 264.
Lexicon of Technology (Lexikon der Technik), vol. 13, Lexicon of Precision Technology, pp. 86, 87.
Olbrisch Walter
Suttner Wolfgang
Smith Leonard E.
Suttner GmbH & Co. KG
Szczecina Eugene L.
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