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. 01, 2014
Filed:
Jan. 17, 2011
Peter J. Dowd, Granby, CT (US);
John M. Dehais, Windsor, CT (US);
Blair A. Smith, South Windsor, CT (US);
Kevin M. Rankin, Windsor, CT (US);
Timothy R. Boysen, Windsor Locks, CT (US);
Keith J. Brooky, Wallingford, CT (US);
Aaron T. Nardi, East Granby, CT (US);
Peter J. Dowd, Granby, CT (US);
John M. Dehais, Windsor, CT (US);
Blair A. Smith, South Windsor, CT (US);
Kevin M. Rankin, Windsor, CT (US);
Timothy R. Boysen, Windsor Locks, CT (US);
Keith J. Brooky, Wallingford, CT (US);
Aaron T. Nardi, East Granby, CT (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
A butterfly valve comprises a housing including a bore, a rotatable shaft passing through the bore, a disc mounted to the shaft for controlling the flow of a fluid through the bore, a thrust load reacting section and a wear interface. The thrust load reacting section includes a thrust plug assembled in a thrust reacting end of the shaft and a thrust plate secured to the housing. The thrust plate has a well for axially retaining the thrust plug and the thrust reacting end of the shaft. The wear interface includes a first contact region on the thrust plug with a first contact surface and a second contact region at the base of the well with a second contact surface. A portion of the first contact surface is spherical and in contact with a portion of the second contact surface.