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. 28, 2013
Filed:
Oct. 23, 2012
Ruei-ting Gu, Kaohsiung, TW;
Ruei-Ting Gu, Kaohsiung, TW;
Other;
Abstract
A four-stroke engine without a crankshaft and valves contains a base including a gas groove, a first cylinder, a second cylinder, two gas flowing holes, a first inlet, a first outlet, and a holder; a gas valve including a connecting rod, a second inlet, and a second outlet; a driving device including two pushing posts, a rotating arm, a rotary shaft; a gear set including a panel, an upper gear, and a bottom gear, wherein the drive gear has a second tilted bar, the second tilted bar has a second opening arranged thereon, a second rotatable bearing; a seat including a peripheral side coupling with a top rim of the holder, a fixed pole axially connecting with the holder and the base; wherein a top end of the rotary shaft extends out of the seat.