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:
Apr. 24, 2001
Filed:
Apr. 12, 1999
John R Webster, Derby, GB;
David S Knott, Loughborough, GB;
Rolls-Royce plc, London, GB;
Abstract
A seal arrangement (,) between relatively movable components (,) includes at least one magnet (,) on a first component (,) and at least one magnet (,) on the second component (,). A clearance (,) is defined between the at least one magnet (,) on the first component (,) and the at least one magnet (,) on the second component (,). Springs (,) bias the at least one magnet (,) on the first component (,) and the at least one magnet (,) on the second component (,) towards each other. The at least one magnet (,) on the first component (,) and the at least one magnet (,) on the second component (,) are arranged to repel each other against the spring (,) to control the clearance (,).