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. 18, 2004
Filed:
Dec. 27, 2001
Olivier L. Tremoulet, Jr., Edmonds, WA (US);
Lennart Svensson, Västerås, SE;
Chidambaram Raghavan, Kent, WA (US);
Mohamed Hashish, Bellevue, WA (US);
Flow International Corporation, Kent, WA (US);
Abstract
High-pressure static seals and pressure vessels with static seals for containing fluid at high pressures are shown and described. Embodiments of the invention allow a plug to be easily, manually inserted into and removed from the pressure vessel. A metallic ring in the seal is configured to expand under pressure to prevent an O-ring in the seal from being extruded into a gap between the plug and the vessel wall, but not to expand so much as to cause galling or similar damage when the seal moves with respect to the wall under elevated pressure.