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:
May. 21, 2013
Filed:
Feb. 01, 2011
Hiroshi Ogawa, Sayama, JP;
Fumito Komatsu, Shiojiri, JP;
Hiroshi Ogawa, Sayama, JP;
Fumito Komatsu, Shiojiri, JP;
Ikiken Co., Ltd., Sayama, JP;
Yugen Kaisha K. R & D, Shiojiri, JP;
Abstract
Disclosed is a small rotary cylinder device wherein friction loss is reduced and energy is conserved by reducing effects of a reaction force applied from cylinders to pistons, which is incorporated in a piston composite body and which linearly reciprocates, the piston composite body being eccentrically connected to a first crank shaft rotating about a shaft. Guide bearings () guide linear reciprocation of first and second piston assemblies () attached to second tube bodies (), which are caused by rotating a first crank shaft () about a shaft () and rotating a piston composite body (P) about the first crank shaft (), in the radial direction of a rolling circle of second imaginary crank shafts (), which has a radius 2r and which is centered at the shaft ().