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. 02, 2018
Filed:
Dec. 19, 2013
Applicant:
Wabco Automotive Uk Limited, Batley Yorkshire, GB;
Inventors:
Simon Warner, Batley Yorkshire, GB;
David Heaps, Batley Yorkshire, GB;
Assignee:
WABCO AUTOMOTIVE UK LIMITED, Batley, Yorkshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 29/00 (2006.01); F04C 18/356 (2006.01); F04C 18/344 (2006.01); F04C 28/06 (2006.01); F04C 25/02 (2006.01); F04C 28/28 (2006.01);
U.S. Cl.
CPC ...
F04C 29/005 (2013.01); F04C 18/344 (2013.01); F04C 18/356 (2013.01); F04C 25/02 (2013.01); F04C 28/06 (2013.01); F04C 29/0071 (2013.01); F04C 28/28 (2013.01);
Abstract
To provide a failsafe drive coupling capable of high torque transmission in direct dog drive, a vacuum pump drive is disconnectable from a drive shaft upon movement of a piston against a return spring, under the action of oil pressure. The piston comprises a speed synchronizing clutch engageable with the input shaft to rotate the piston at the speed of the input shaft, and teeth to directly dog the piston and input shaft together.