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:
Feb. 15, 2000
Filed:
May. 26, 1998
Ed Miller, Newark, DE (US);
Joy Sawyer Bloom, Wilmington, DE (US);
Charles Keller, West Chester, PA (US);
James Carroll, Sr, Philadelphia, PA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A uniform cross-section and ribbed thermoplastic compressor valve which can be used as a discharge valve for a compressor and has internal rib structure and uniform wall thickness. The valve member can be made of high-performance polymeric resin such as polyimide. The valve member comprises a base member, an annular wall member, a central member protruding from the base member, and a plurality of internal wall members. The internal wall members provide the internal rib structure which strengthens the valve member and allows for light-weight construction. Preferably, there are six internal wall members and the central member has a cavity.