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. 15, 2022
Filed:
Oct. 05, 2020
Fisher & Company, Incorporated, St. Clair Shores, MI (US);
Mircea Napau, Sterling Heights, MI (US);
Doina Napau, Sterling Heights, MI (US);
Ileana Dacia Napau, Cugir, RO;
Ioan Napau, Rochester Hills, MI (US);
Dean Lenane, Grosse Pointe Woods, MI (US);
Matthew Essian, Clinton Township, MI (US);
Antal Teer, Harrison Township, MI (US);
Sapan M. Poptani, Northville, MI (US);
Radu Calin Napau-Stoica, Lupeni, RO;
Fisher & Company, Incorporated, St. Clair Shores, MI (US);
Abstract
A method of manufacturing a gear drive for a seat adjuster assembly may include applying a cutting process to a worm gear blank to cut gear teeth into the worm gear blank and form a single-enveloping worm gear; forming a worm with a helical thread that includes a pitch surface that is configured to mesh with the gear teeth of the single-enveloping worm gear. A longitudinal crown is created on the pitch surface of the helical thread of the worm such that the pitch surface has an arcuate profile moving from a proximal end of the worm to a distal end of the worm. In addition, a crowned tooth profile is created on the helical thread of the worm that extends in an angular direction between a top land and a bottom land of the helical thread. The crowned tooth profile bows outwardly along a convex curve.