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:
Sep. 07, 1976
Filed:
May. 10, 1974
Lowell L Malo, St. Peters, MO (US);
ACF Industries, Incorporated, New York, NY (US);
Abstract
A box car anti-pilferage device for plug doors mounted a sufficient distance above the rail whereby the device is usually beyond the reach of thieves standing on the ground in a railroad yard. The device includes a first plate having at least one opening therein mounted upon the door, and a second, movable plate having at least one opening therein mounted upon the plug door operating rod. The second plate obtains a position adjacent but spaced from the first plate when said box car door is in closed position. A locking member is mounted upon one of the first and second plates, and is biased toward a locked position passing through the openings in the first and second plates. The locking member is manually movable from said locked position to an open position out of engagement with one of the openings. A stop maintains the locking member in the open position during initial rotation of said operating rod from a door closed position toward a door open position. A tripping device moves the locking member to a tripped position engaging a surface on one of the first and second plates. The locking member because of the bias automatically assumes the locked position engaging the openings in the plates.