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:
Oct. 14, 1997
Filed:
Oct. 07, 1996
Graydon Choinski, Harrisburg, NC (US);
Indian Head Industries, Inc., , NC (US);
Abstract
A small envelope is achieved for an inelastically deformed connection between a spring cover and a central housing in a spring brake actuator. The connection is deformed radially inwardly and then extends radially outwardly from the radially inwardly extending portion. This eliminates the radially outwardly extending portion and flanges as are typically utilized in the prior art. Thus, a much smaller envelope is provided. In preferred embodiments of this invention, a seal groove is positioned axially adjacent a securement groove in the central housing. A seal is positioned in the seal groove to ensure an air-tight seal. In addition, a unique diaphragm guiding structure is incorporated into one embodiment of this invention.