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:
Apr. 18, 1978
Filed:
Sep. 16, 1976
Applicant:
Inventors:
Andrew M Kunz, Dolton, IL (US);
Donald B Yates, Park Forest, IL (US);
Richard L Tuck, Highland, IN (US);
Assignee:
Pullman Incorporated, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; B61D / ;
U.S. Cl.
CPC ...
105240 ; 92 14 ;
Abstract
An automatic device for locking and unlocking a hopper door operating mechanism which prevents accidental opening of the hopper doors due to car oscillations and provides a protective lock while the car is in transit but which has a novel lock which is releasable by intuitional actuation of the operating mechanism.