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:
Jan. 27, 2009
Filed:
Dec. 29, 2006
Jiaxiong Gong, Changzhou, CN;
Ming Yin, Changzhou, CN;
Xiaojun Gong, Changzhou, CN;
Quan Liu, Ames, IA (US);
Xiaoxiang Zhang, La Palma, CA (US);
Yongyong Mao, Shanghai, CN;
Jiaxiong Gong, Changzhou, CN;
Ming Yin, Changzhou, CN;
Xiaojun Gong, Changzhou, CN;
Quan Liu, Ames, IA (US);
Xiaoxiang Zhang, La Palma, CA (US);
Yongyong Mao, Shanghai, CN;
I-Trust Better Life Corp., Buena Park, CA (US);
Abstract
An actuator usable in a support frame for use in a lift chair. In one embodiment, the actuator has a housing, a reversible electric motor positioned in the housing, a worm that connects with a worm wheel, wherein the worm is driven by the electric reversible motor in operation, an outer tube member that extends through an opening defined in a front end of the housing and has a central axis, an activation rod configured to be telescopically movable relative to the outer tube member, a first pushing member movable with the activation rod and having a threaded opening, a first protrusion member and a second protrusion member spaced apart from the first protrusion member, a first push button switch with a push button, and a second push button switch with a push button, the first push button switch and second push button switch electrically coupled to the electric reversible motor and positioned apart in the housing such that when, during operation, the motion of the activation rod relative to the outer tube member causes the first pushing member to move along with a direction parallel to the central axis, the first protrusion member engages with or disengages from the push button of the first push button switch to cause the first push button switch to be in a first state or in a second state.