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:
May. 30, 1989
Filed:
Jan. 15, 1987
Applicant:
Inventors:
Seppo I Leppanen, Vancouver, CA;
V Erik Kumpa, North Vancouver, CA;
Richard S McDiarmid, North Vancouver, CA;
Assignee:
Devron-Hercules Inc., North Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ; F16H / ;
U.S. Cl.
CPC ...
74625 ; 74 8915 ; 74640 ;
Abstract
A compact system for converting a rotational movement, of relatively low torque, into an accurate linear movement, of relatively high force. The system includes a low torque actuator and a backlash-free gear reducer. A linearly movable shaft, capable of exerting a high linear force in either direction, has a long axis in direct line with the long axis of the actuator. A direct linkage, essentially free of backlash, connects the actuator to the shaft through the gear reducer. A body and housing enclose the system.