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:
Jul. 14, 1981
Filed:
May. 31, 1979
Applicant:
Inventor:
Willis H Knippel, Palos Park, IL (US);
Assignee:
Pullman Incorporated, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61D / ;
U.S. Cl.
CPC ...
414388 ; 105239 ; 105243 ; 105280 ;
Abstract
A bottom dump hopper car includes a pair of closure doors interconnected for conjoint movement. One of the doors is provided with a pivoted arm extending toward the center sill and is in operative engagement with a pivoted locking latch. The latch includes a stop and a follower element and is pivotally moved between door opening and closing position by means of a reciprocating actuation rod containing a cam element engagable with the follower element.