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:
Dec. 23, 1986
Filed:
Nov. 18, 1983
Applicant:
Inventors:
Henry K Wiger, Arlington, VA (US);
Manfred Katz, Statesville, NC (US);
Assignee:
Pullman Standard Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D / ;
U.S. Cl.
CPC ...
105416 ; 105418 ; 280787 ; 52729 ;
Abstract
A railway car underframe includes a centersill having a central section and opposite end sections. The sill includes spaced vertical walls, and upper and lower walls which are slotted and in registry the length of the central section, and which form in cross section a spaced I-beam construction. The construction provides a sill having high torsional flexibility which is necessary to accommodate the railway car to track conditions tending to derail the car when single axle trucks with two wheels are utilized.