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:
Jun. 30, 2009
Filed:
Jul. 19, 2005
Fausto Casaro, Turin, IT;
Fausto Casaro, Turin, IT;
Varian, S.p.A., Leini, Torino, IT;
Abstract
A support ring () for rolling bearings (), especially for rolling bearings applied to rotors with very high rotation speed, such as rotors of rotary vacuum pumps, the ring comprising a pair of concentric cylindrical shells () connected together by a plurality of oblique radial plates (), at least one of said shells () being circumferentially broken so as to define a plurality of shoes (), each shoe being connected to at least one of the radial plates () in such a manner as to define shoe portions or arcs (A, A) of different length, wherein the plates () are resilient and allow for the radial displacement of the shoes () so as to restrain vibrations of the rotating portion.