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:
Mar. 10, 2020
Filed:
Feb. 06, 2018
Applicant:
Federal Signal Corporation, Oak Brook, IL (US);
Inventor:
Xiaolun Huang, Naperville, IL (US);
Assignee:
Federal Signal Corporation, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 53/14 (2006.01); F16J 7/00 (2006.01); F16J 1/12 (2006.01); F04B 5/02 (2006.01); F04B 9/109 (2006.01); F04B 53/16 (2006.01);
U.S. Cl.
CPC ...
F04B 53/147 (2013.01); F04B 5/02 (2013.01); F04B 9/109 (2013.01); F04B 53/144 (2013.01); F16J 1/12 (2013.01); F16J 7/00 (2013.01); F04B 53/162 (2013.01);
Abstract
A piston assembly is provided with a piston head retaining structure. The piston assembly includes a piston shaft and a piston head disposed around the piston shaft and providing a piston head face that faces a cylinder wall. The piston assembly further includes a piston head mount element arranged adjacent to the piston head and mounted around the piston shaft and a tensioning device that generates an axial tension between the piston shaft and the piston head.