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. 26, 1991
Filed:
Jan. 03, 1989
Michael J Zawaski, Alliance, OH (US);
Don B Van Possen, Alliance, OH (US);
Westmont Inc., Minerva, OH (US);
Abstract
A self-compensating seal for a rotating shaft includes a seal ring (13) having a plurality of trapezoidal and/or triangular shaped seal sections (15). A ring housing (22) is affixed to a shaft (12) and engages the inside trailing edge (20) of the seal ring (13). Means (30, 31) are provided to prohibit circumferential rotational movement of the seal ring (13) within the ring housing (22). The ring housing (22) and the seal ring (13) rotate with the shaft (12). The centrifugal forces generated by the rotation causes the seal sections (15) to move outward from the ring housing (22) and toward a wear plate (24). Engagement of the outside leading edge (21) of the seal ring (13) and the wear plate (24) perfects the seal.