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. 25, 2011
Filed:
Sep. 14, 2005
Mario Pecchioli, Prato, IT;
Dino Bianchi, Florence, IT;
Mario Pecchioli, Prato, IT;
Dino Bianchi, Florence, IT;
Nuovo Pignone, S.p.A., Florence, IT;
Abstract
Convex sealing bottom () for a twin-shaft turbine of the type comprising a series of convex disks constrained to each other by means of a series of pins, each disk of said disks comprises an outer shaped edge which is engaged with a corresponding annular surface () of an inner grooved surface () of a ring () for obtaining an axial seal. The series of disks comprises three disks, a first disk (), a second disk () and a third disk () respectively. The three disks are fixed to each other centrally by means of a series of spokes () and are constrained in pairs respectively by means of a series of pins which are arranged orthogonally to the three disks to minimize the relative movements of the three disks in an axial direction at the same time allowing the radial dilatations of the three disks themselves.