Expansible chamber devices – With removal conduit for liquid seepage from expansible chamber
Reexamination Certificate
2005-03-15
2005-03-15
Lopez, F. Daniel (Department: 3745)
Expansible chamber devices
With removal conduit for liquid seepage from expansible chamber
C092S154000, C060S456000
Reexamination Certificate
active
06865980
ABSTRACT:
The invention relates to a method and apparatus for returning the oil drained from a working pressure space of a hydraulic motor into a motor casing to an oil line, which is connected to the motor and which is in communication via a divider with intra-motor flow channels which are in communication with the working pressure spaces. The oil seeping into the casing is conveyed by means of pressure variations internal of the hydraulic motor, pulsating consistently with rotating motion, into the oil line presently at a lower pressure and connected to the motor by way of said divider. Therefor, the casing space is connected by a return conduit through a one-way valve to at least one flow channel, which lies between the divider of the motor and the working pressure space of the motor.
REFERENCES:
patent: 2298850 (1942-10-01), Vickers
patent: 2455330 (1948-11-01), Denison, Jr.
patent: 4762479 (1988-08-01), Uppal
patent: 29 46 590 (1980-06-01), None
patent: 43 04 403 (1993-08-01), None
patent: 0 534 067 (1993-03-01), None
patent: WO 0165113 (2001-09-01), None
Ideachip Oy
Kershteyn Igor
Lopez F. Daniel
Synnestvedt & Lechner LLP
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