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. 28, 1989
Filed:
Oct. 14, 1987
Daniel P Morgan, Sonoma, CA (US);
Veriflo Corp., Richmond, CA (US);
Abstract
A fluid flow control device and a compression member therefore permit the clamping of a seal of the device without the presence of internal threads so that high purity can be maintained. The compression member comprises a first suface centrally located on one side of the member for applying a concentrated central force to the seal and a diametrically larger second surface on a second side of the compression member opposite the first side. At least a radially outer portion of the second surface is elevated with respect to a radially inner portion thereof to provide a contact surface upon which the diametrically larger force is applied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile