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. 30, 2025
Filed:
Feb. 20, 2024
Aigi Environmental Inc., Nanjing, CN;
Jingwei Zhao, Nanjing, CN;
Jun Zhang, Nanjing, CN;
AIGI Environmental Inc., Nanjing, CN;
Abstract
A mechanical sealing device for sealing fluid from escaping a housing through which a rotating shaft is arranged includes a rotatable ring fixed to and disposed about the rotating shaft. A stationary ring is disposed about the rotating shaft, and abuts a stationary ring at a contact point. A peripheral rim is provided and surrounds the rotatable ring and the stationary ring. The peripheral rim defines an inclined surface exposed to the fluid and includes a distal end that protrudes radially beyond the rotatable ring and the stationary ring. One of either the rotatable or stationary rings includes an inclined chamfer adjacent the contact point, the inclined chamfer defining a plane that is parallel to the inclined surface.