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:
Jan. 19, 1982
Filed:
Mar. 26, 1980
Edwin S Carlson, St. Charles, MO (US);
ACF Industries, Incorporated, New York, NY (US);
Abstract
In a railway tank car, a tank mounting flange is integrally connected to the tank bottom. The tank mounting flange includes an opening into which is inserted a ball valve housing. The ball valve housing includes an upper housing portion and a lower housing portion. Mechanical housing fasteners hold the upper housing portion in engagement with the lower housing portion. The lower housing portion has an outwardly extending housing flange portion which engages the tank mounting flange. Removable fasteners hold the housing flange portion in place in engagement with the mounting flange. A ball valve is located within both the lower housing portion and the upper housing portion. A pair of vertically extending seals seal the ball valve with respect to the tank when the ball valve is in closed position. The ball valve may be either bottom operated or top operated.