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:
Aug. 12, 1980
Filed:
Nov. 13, 1978
Applicant:
Inventor:
Keith J Hallam, Merrillville, IN (US);
Assignee:
Pullman Incorporated, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61D / ; B61D / ;
U.S. Cl.
CPC ...
105348 ; 105443 ; 49141 ; 296146 ;
Abstract
A combination end door and emergency stairway unit operates as a conventional rapid transit door to allow movement between cars. The unit also includes an auxiliary door inner frame pivotally mounting a staircase that may be rotated and lowered to the ground to allow passengers to alight from the vehicle. A locking, linkage mechanism securely interconnects the auxiliary door, the inner frame, and the movable staircase to form the vehicle end door unit.