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:
Oct. 28, 1986
Filed:
Oct. 11, 1984
Li-Hsiung Liu, Matthews, NC (US);
Textron Inc., Providence, RI (US);
Abstract
Automatic compression release for a two-cycle engine is provided in a simple and effective manner by connecting a chamber defined by a diaphragm to the crankcase of the engine with a fluid flow path defining structure. In the fluid flow path, a check valve and orifice are disposed in parallel. The check valve, for example, a duckbill valve, allows the flow of fluid from the diaphragm chamber to the crankcase but not vice versa, and fluid can bleed through the orifice in either direction. The diaphragm operatively engages a valve stem, and a first spring biases the valve stem so that the valve is in open position. A second spring biases the valve to the closed position, and when the first spring is neutralized by a vacuum drawn in the diaphragm chamber, the valve will close. The valve is in communication with a pressure relief opening at an end of the engine cylinder opposite the crankcase.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile