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:
Jun. 01, 1999
Filed:
Jan. 21, 1997
Applicant:
Inventor:
Russell J Huggins, Wellsville, PA (US);
Assignee:
Keystone Industries, Inc., Camp Hill, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61G / ;
U.S. Cl.
CPC ...
213223 ; 188287 ; 267219 ;
Abstract
A rail car buffer has a capsule body and a spring assembly with an elastomer spring and a gas filled hydraulic spring in the body. Expansion of the buffer after collapse is snubbed by the gas filled hydraulic spring to convert energy stored in the elastomer spring to heat.