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:
Jan. 28, 1986
Filed:
Jun. 13, 1983
Gordon T Zitting, Sandy, UT (US);
Microdot Incorporated, Chicago, IL (US);
Abstract
A two element, high and low pressure seal assembly to be used in a hydraulic or pneumatic sealing environment between two relatively movable machine parts, the seal assembly comprising a spring element, circular or rectangular in cross-section and made of a relatively soft elastomeric material, and spring element being substantially contiguously surrounded along all but a small exposed area and contained within an annular slot of a house-shaped elastomeric annular sealing member whereby an integral assembly is formed for easy installation and unitary response. The house-shaped sealing element comprises a central body from which two anti-extrusion legs radially extend. The legs are located fore and aft of the spring element within an annular peripheral groove in one machine part and are disposed perpendicular or radial to the axis of said machine part. Projecting radially beyond said machine part is a convergingly tapered gabled surface defining a central apex or tip portion, said tip portion creating a narrow band contact dynamic seal area between the apex per se and the second machine part when the seal assembly is in said machine part groove and compressed between the two machine parts. The sealing element may project either radially inwardly or radially outwardly from the spring element. The axial dimension of the entire seal assembly is slightly smaller than the axial dimension of the machine groove.