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. 31, 1984
Filed:
Feb. 10, 1982
Applicant:
Inventor:
James M Herring, Jr, Merion Station, PA (US);
Assignee:
The Budd Company, Troy, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
B61F / ;
U.S. Cl.
CPC ...
1051 / ; 267 / ; 267 6411 ;
Abstract
Emergency springs are disposed within air springs which are used for normally supporting a railway car body. When the air springs fail, the car body is supported by the emergency springs. Each of the emergency springs includes a conventional spring in combination with a pair of angularly disposed springs which changes operating chracteristics when the load is increased.