Hydraulic motor
Patent 6345501 Issued on February 12, 2002. Estimated Expiration Date: 
September 24, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 24, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3785157 Hydraulic swing motor control circuit Boom crane centering Pressure limiting acceleration control system and valve for hydraulic motors Boom crane centering Two speed hydraulic door operator Patent #: 5410842 InventorsAssigneeApplicationNo. 405415 filed on 09/24/1999US Classes:60/468, Of by-pass of motor, pump or flow control element60/494, Including by-pass or restrictor controlling flow circuit91/489ValvedExaminersPrimary: Ryznic, John E.Attorney, Agent or FirmInternational ClassesF16D 031/02F01B 001/00 Foreign Application Priority Data1998-09-25 GBAbstractA hydraulic motor arrangement including a hydraulic motor having an inlet port arranged to receive a driving fluid, and an outlet port whereby fluid can exhaust from the motor, the arrangement incorporating a by-pass line interconnecting the inlet and the outlet ports, a non-return valve being located within the by-pass line and being arranged to permit fluid flow from the outlet port to the inlet port but to substantially prevent fluid flow in the reverse direction. | |
