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:
Nov. 19, 2013
Filed:
Sep. 10, 2012
Chang-hsien Tai, Pingtung, TW;
Uzu-kuei Hsu, Pingtung, TW;
Jr-ming Miao, Pingtung, TW;
Geng-ren Liu, Pingtung, TW;
Chang-Hsien Tai, Pingtung, TW;
Uzu-Kuei Hsu, Pingtung, TW;
Jr-Ming Miao, Pingtung, TW;
Geng-Ren Liu, Pingtung, TW;
National Pintung University of Science & Technology, Neipu Hsiang, Pingtung County, TW;
Abstract
A heating and cooling device includes a cylinder having a chamber for receiving a gas. A guiding groove is defined in an inner periphery of the chamber. A piston assembly is movably received in the chamber of the cylinder. The piston assembly includes first and second pistons and a connecting rod connected to the first and second pistons. The first piston is mounted to a side of the second piston and rotatable relative to the connecting rod. Each of the first and second pistons includes a plurality of openings. A guiding block is formed on an outer periphery of the first piston and is slideably received in the guiding groove.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile