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:
Nov. 10, 1987
Filed:
Aug. 20, 1986
Minoru Okada, Suita, JP;
Osaka Taiyu Co., Ltd., Osaka, JP;
Abstract
A fluid motor for converting reciprocation of a piston within a cylinder to rotation by a crankshaft includes a valve for supplying a fluid to the cylinder and discharging the fluid therefrom. The valve comprises a rotary valve member rotatable with the crankshaft and a fixed valve body slidably in contact with the rotary valve member. When the motor stops, at least one-half portion of a fluid intake groove formed in the rotary valve member is positioned at one side, toward a direction opposite to the direction of rotation of the rotary valve member, of a position opposed to a cylinder connection port formed in the fixed valve body so that a sufficient amount of pressure fluid can be supplied to the cylinder at the start when the motor is initiated into operation again.