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:
Feb. 22, 2000
Filed:
Sep. 10, 1998
Carmine Gabriel Tortora, Lowell, MA (US);
Robert P Lascelles, York, ME (US);
Kenji Tejima, Hisai, JP;
Joseph John Aubin, Georgetown, MA (US);
Harmonic Drive Technologies, Peabody, MA (US);
Abstract
The present invention comprises a novel harmonic drive transmission arrangement having an input member and an output member, and its method of manufcature. The transmission comprises a generally cylindrically-shaped housing including a circular spline gear arranged therein, and a cup-shaped flexspline with an array of radially outwardly directed gear teeth on a first end thereof, engaged with the circular spline teeth. A wave generator is rotatably supported on the input member radially inwardly of the gear on the flexspline. An annular diaphragm is arranged at a second end of the cup-shaped flexspline, and a flange is attached or integral to the diaphragm to permit the cup-shaped flexspline to be securely attached to the output member, the flange having a annular outmost surface thereon. An outer bearing race is attached to a second end of the housing, and an arrangement of bearing members are arranged between the outer bearing race and the radially outermost surface of the flange, the bearing members between rotatable radially about said radially outer surface of the flange, in a structurally supportive manner therewith.