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. 11, 2021
Filed:
Feb. 11, 2019
Applicant:
Inpro/seal Llc, Rock Island, IL (US);
Inventor:
Neil F. Hoehle, Solon, IA (US);
Assignee:
Inpro/Seal LLC, Rock Island, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/3276 (2016.01); F16J 15/447 (2006.01); F16J 15/00 (2006.01); F16J 15/16 (2006.01); F16C 33/78 (2006.01); F16C 33/80 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3276 (2013.01); F16C 33/782 (2013.01); F16C 33/7886 (2013.01); F16C 33/805 (2013.01); F16J 15/008 (2013.01); F16J 15/164 (2013.01); F16J 15/4478 (2013.01);
Abstract
A shaft seal assembly may include a stator and a rotor. The rotor may be configured to rotate with a shaft, and the stator may be engaged with a housing. The stator and rotor may be configured with radial and/or axial recesses and/or radial and/or axial projections. These various features may be configured such that the stator and rotor cooperate to form a ring cavity. A cooperating ring may be positioned in the ring cavity, and the cooperating ring may be configured such that is circumferentially expandable so that the cooperating ring changes size and/or shape when it rotates as opposed to when it is not rotating.