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. 05, 1982
Filed:
Dec. 12, 1977
Applicant:
Inventors:
Hugo R Larson, Ridgewood, NJ (US);
Chandi P Biswas, Ramsey, NJ (US);
Assignee:
Abex Corp., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
1882 / ; 7512 / ; 1921 / ;
Abstract
A cast iron railroad brake shoe containing more than 2% phosphorus with sulfur and manganese present in the ratio of weight % sulfur>weight % manganese/1.8; the amount of sulfur in excess of weight % Mn/1.8 accounts for increased wear resistance in proportion to said excess.