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:
Jul. 06, 2021
Filed:
Aug. 31, 2018
Rolls-royce Corporation, Indianapolis, IN (US);
Daniel Feinstein, Zionsville, IN (US);
Joseph Swift, Indianapolis, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Abstract
A machine can include a radially inner component, a radially outer component, and a circumferential seal assembly between the inner and outer components. At least one (e.g., both) of the inner and outer components can be a rotor. The circumferential seal assembly can include a circumferential metallic mount, a circumferential ceramic runner, a circumferential carbon seal, and one or more spring energized seals. The spring energized seals can prevent rotational slippage between the metallic mount and the ceramic runner. The spring energized seals can be necessary to prevent rotational slippage between the metallic mount and the ceramic runner for at least one standard operating state of the machine.