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. 21, 2023
Filed:
Jul. 18, 2016
Persimmon Technologies, Corp., Wakefield, MA (US);
Persimmon Technologies Corporation, Wakefield, MA (US);
Abstract
A substrate transport arm including a first link; a second link rotatably connected to the first link; a third link rotatably connected to the second link at a wrist joint; and a mechanical transmission having a pulley. The third link includes an end effector configured to support a substrate thereon. The mechanical transmission is connected to the third link to control rotation of the third link on the second link. The mechanical transmission is configured to control rotation of the third link as a function of an angle between the first and second links such that, as the first and second links are rotated relative to each other, the wrist joint follows a wrist path which includes a curved portion, and where a center of the substrate supported on the end effector is moved along a substantially straight substrate path as the wrist joint follows the curved portion.