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:
Jan. 15, 1985
Filed:
Apr. 22, 1983
Jerry Kirsch, Grosse Pointe Farms, MI (US);
Kerry F Kirsch, Livonia, MI (US);
Kenneth J Hornacek, Pontiac, MI (US);
Rimrock Corporation, Columbus, OH (US);
Abstract
A rotary and linear actuating device is disclosed for imparting precision rotary and linear movement to an external member or assembly. In a preferred form of the invention a rotatable assembly is rotated about an axis within a housing by selectively varying the relative pressures of an actuating fluid in at least a pair of fluid pressure chambers defined by the housing, the rotatable assembly and at least a pair of vane members extending therebetween. An elongated shaft member is rotationally fixed relative to the rotatable assembly and is supported by at least a pair of linear bearing assemblies to allow linear movement of the elongated shaft member along said axis. The linear bearing assemblies remain a fixed axial distance from one another in order to adequately support heavy loads on the elongated shaft member and the external member or assembly attached thereto. The device also preferably includes adjustment means for selectively adjusting the clearance between the elongated shaft member and the linear bearing assemblies.