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:
Mar. 21, 1995
Filed:
Mar. 31, 1993
Richard W Rees, Rochester Hills, MI (US);
ITT Corporation, New York, NY (US);
Abstract
A gear reducer includes a first non-rotatable gear. A second transfer gear formed of a resilient material engages the first gear. The second gear is eccentrically driven about the first gear by an eccentric collar mounted in the second gear and coupled to a motor output shaft. The second transfer gear nutatingly engages a rotatable third gear and moves one tooth of the third gear into alignment with one tooth of the first gear for each predetermined amount of rotation of the second transfer gear. A rotatable driven shaft is coupled to and rotated by the third gear. The first and third gears each have a plurality of gear teeth arranged at the same pitch circle diameter; but provided in a different number of teeth on each of the first and third gears to provide a selective reduction between the speed of rotation of the motor output shaft and the speed of rotation of the driven shaft coupled to the third gear.