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:
Jul. 14, 2020
Filed:
Dec. 02, 2019
Kan Cui, Mercer Island, WA (US);
Margaret C. Liu, Mercer Island, WA (US);
Samuel K. Liu, Mercer Island, WA (US);
Kan Cui, Mercer Island, WA (US);
Margaret C. Liu, Mercer Island, WA (US);
Samuel K. Liu, Mercer Island, WA (US);
Other;
Abstract
The linear-to-rotary actuator is a device that has two rotors at opposite ends of a main housing tube, the rotors being driven to rotate by a slider disposed between the rotors, the slider being attached to the piston of a linear actuator. The device may be configured so that angular displacement between the rotors may be adjusted for use with apparatus that may require variable angular displacement between articulated segments, such as a robotic arm, the arm of an excavator or crane, and the like. In one embodiment, the device has rollers mounted on opposite sides of the slider that engage tracks defined in adaptors selectively coupled to the rotors by 'boltless' connectors. In another embodiment, the device has gear trains driven by the slider that are coupled to the rotors for multiplying angular displacement between the rotors.