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:
Nov. 18, 1986
Filed:
Jul. 30, 1984
Applicant:
Inventor:
Roy W Miller, Highland, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D / ;
U.S. Cl.
CPC ...
105377 ; 220314 ; 220324 ; 292241 ; 2922565 ; 2922 / ; 292D / ;
Abstract
The hatch of a cargo vessel, such as the hopper of a covered hopper car, is sealed by a hatch cover having a locking arrangement which prevents the hatch cover from being blown open by pressure within the hopper upon unlocking the lock. An over center locking arm has two locking detents on it which coact with two locking detents on a locking bar to selectively provide a sealed, pressure blow off and hatch open position. A rotative adjustment is provided to enable the sealing pressure of the hatch cover on the hatch to be selectively adjustable.