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:
Oct. 27, 2015
Filed:
Aug. 16, 2013
Little Engine, Llc, Gastonia, NC (US);
Franz W. Kellar, Gastonia, NC (US);
Harold Lloyd Crowder, Jr., Concord, NC (US);
Scott M. Duquette, Clemmons, NC (US);
Little Engine, LLC, Gastonia, NC (US);
Abstract
A seal apparatus includes: (a) first and second machine elements defining a sealing interface between two zones subject to different fluid pressures, a boundary of which lies between the two elements; (b) a seal comprising rigid material carried by the first machine element and having an annular lip defining a first contact surface; (c) a second contact surface comprising rigid material, defined by the second machine element; (c) wherein both contact surfaces are wear resistant, and the first and second contact surfaces bear directly against each other, so as to seal against fluid leakage between the first and second zones, while allowing relative sliding motion between the first and second contact surfaces; and (d) wherein the seal is configured to allow the lip to deform elastically and permit the first contact surface to conform in a regular or irregular shape to the second contact surface.