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:
Sep. 05, 1978
Filed:
Aug. 17, 1977
John R Murphy, Amory, MS (US);
Other;
Abstract
An oil-operated motor driven from an air-pressurized oil supply tank. The motor has sets of opposing cylinders having oil admission valves and containing drive pistons connected to a crankshaft. The cylinders are connected to the pressurized supply tank through the admission valves and respective ones of a pair of compressed air-controlled pilot valves. The pilot valves are controlled by relay valves alternately opened by a rotating cam driven by the crankshaft. The pilot valves control the delivery of pressurized oil to cylinders arranged to be alternately supplied with pressurized oil, with their pistons acting to drive the crankshaft in a common direction by alternate power pulsations. A common compressed air supply is employed to pressurize the oil reservoir and to operate the pilot valves. The exhaust oil from the motor is returned to the oil reservoir by a hydraulic pump driven by the main oil-operated motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile