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:
Sep. 01, 2026
Filed:
Jul. 11, 2025
Fositek Corporation, New Taipei City, TW;
An-Szu Hsu, New Taipei City, TW;
Yung-Chih Tseng, New Taipei City, TW;
PO-Yun Chen, New Taipei City, TW;
Zoen Ryon Ryan Wong, New Taipei City, TW;
FOSITEK CORPORATION, New Taipei City, TW;
Abstract
A worm gear linear drive structure includes an internal helical gear member having an inner bore with a helical gear structure and a rod extending through the bore along an axial direction. A plurality of worm gear assemblies are disposed within the bore between the internal helical gear member and the rod. Each worm gear assembly includes at least one worm gear with a gear structure on its outer circumferential surface, the gear structure being in cross-axis meshing engagement with the helical gear structure, and the worm gear being in frictional contact with the outer circumferential surface of the rod. A preload assembly is disposed radially outward of the worm gear assemblies and applies a preload force to the worm gear assemblies, generating static frictional force between the worm gears and the rod to enable axial linear movement of the rod when the internal helical gear member is rotated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile