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:
Dec. 23, 2025
Filed:
Jun. 24, 2023
Scott C. Mancl, Johnson City, TN (US);
Scott C. Mancl, Johnson City, TN (US);
Abstract
Some examples of a motor bearing seal include silicone glue bonding a Teflon tube to the inboard end of a motor housing. The Teflon tube's ID is in close sliding contact with the OD of a sleeve on the motor's shaft. The motor housing's inboard end, the silicone glue and the Teflon tube are stationary, while the sleeve and the shaft rotate. In some examples, the shaft supports a stack of fan wheels held in axial compression by a nut on the end of the shaft. In some examples, another adhesive sealingly bonds the ID of the sleeve to the shaft. In some examples, a relatively thin gasket is axially compressed between the sleeve and the stack of the fan wheels. In some examples, the silicone glue contains embedded reinforcement, e.g., fibers, mesh, or protrusions extending integrally from the motor's inboard end.