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:
May. 05, 2009
Filed:
Sep. 08, 2005
Jun Shi, Glastonbury, CT (US);
David Bombara, New Hartford, CT (US);
Kevin E. Green, Broad Brook, CT (US);
Connic Bird, Rocky Hill, CT (US);
John Holowczak, South Windsor, CT (US);
Jun Shi, Glastonbury, CT (US);
David Bombara, New Hartford, CT (US);
Kevin E. Green, Broad Brook, CT (US);
Connic Bird, Rocky Hill, CT (US);
John Holowczak, South Windsor, CT (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.