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:
Sep. 02, 2025
Filed:
Sep. 05, 2023
Greene, Tweed Technologies, Inc., Wilmington, DE (US);
Devin Prate, Philadelphia, PA (US);
Steve Okladek, Bethlehem, PA (US);
Laurence S. London, Lansdale, PA (US);
Greene, Tweed Technologies, Inc., Wilmington, DE (US);
Abstract
The present invention provides fire-resistant seal assemblies that are particularly suited for use in hydraulic components in fire zones. The fire-resistant seal assemblies include a first seal made from an elastomeric material; a first anti-extrusion seal having a first seal-facing surface for receiving the first seal and defining a groove extending therealong, and an exterior surface having a truncated V-shaped portion with beveled end portions in a longitudinal cross sectional view; at least one second anti-extrusion seal having a second seal-facing surface for receiving the first anti-extrusion seal and defining a groove extending therealong, and an exterior surface having a truncated V-shaped portion with beveled end portions in a longitudinal cross sectional view; and at least one backer ring having a third seal-facing surface for receiving the second anti-extrusion seal and defining a groove extending therealong, and an exterior surface having a truncated V-shaped configuration in a longitudinal cross sectional view.