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:
Mar. 03, 1987
Filed:
Apr. 25, 1984
Elmer C Yang, Orange, CA (US);
Pacific Scientific Company, Anaheim, CA (US);
Abstract
A pressurized gas spring having an extended useful operating life is provided. The cylinder is pressurized with a gas that exists in a gas-liquid phase equilibrium at the operating temperatures and pressures of the gas spring. The liquid within the cylinder promptly converts to the gaseous form upon any reduction in pressure within the cylinder. The equilibrium pressure between the liquid and gas phases assures constant cylinder pressure regardless of the gradual, normal leakage of gas from the cylinder, and the cylical changes in volume within the cylinder due to the reciprocating action of the piston rod during operation of the gas spring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile