Hydraulic device

Details Hydraulic device Hydraulic device

2005-05-17

2005-05-17

Tyler, Cheryl (Department: 3746)

Pumps

Expansible chamber type

Having separate noncyclic valve

C417S269000, C417S270000, C417S521000, C091S472000

Reexamination Certificate

active

06893231

ABSTRACT:
The invention relates to a hydraulic device provided with a housing having at least a first line connection and a second line connection and, if appropriate, further line connections, a rotor which can rotate in the housing and chambers which are alternately connected to one of the line connections as a result of the rotation of the rotor. According to the invention, chambers are connected by connecting lines in which there are means for closing a connecting line after a limited volume of fluid has flowed through the connecting line in one direction.

REFERENCES:
patent: 3156192 (1964-11-01), Austin et al.
patent: 3202105 (1965-08-01), Badenoch et al.
patent: 4007663 (1977-02-01), Nagatomo et al.
patent: 4096786 (1978-06-01), Schauer
patent: 4945816 (1990-08-01), Mestieri
patent: 5634776 (1997-06-01), Leemhuis et al.
patent: 5918529 (1999-07-01), Forster
patent: 6024541 (2000-02-01), Perstnev et al.
patent: 1260078 (1961-08-01), None
patent: 2082604 (1971-12-01), None
patent: 1009607 (2000-01-01), None
International Search Report for PCT Application No. PCT/NL01/00840 mailed Mar. 14, 2002.

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