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. 22, 2019
Filed:
Jan. 23, 2017
John Crane Inc., Chicago, IL (US);
Antonio Raul Leal, Philadelphia, PA (US);
John Crane Inc., Chicago, IL (US);
Abstract
A mechanical end face seal having an induction heated seal ring is provided to be used for sealing high-viscosity thermo-sensitive fluids in pressure containing rotating equipment. The different embodiments particularly provide a sealing member fixed to the housing, the sealing element is constructed using ferromagnetic materials. An induction coil attached to a power source is installed outside the housing, said induction coil is supplied with an alternating current producing a time dependent magnetic field that induces eddy currents in the aforementioned sealing member generating heat thus affecting the operating temperatures of the sealing member and hence the interface temperature to achieve greater sealing efficiency, longer seal life and faster equipment startup.