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:
May. 04, 1982
Filed:
Nov. 10, 1980
Gunter R Behle, St. Peters, MO (US);
ACF Industries, Incorporated, New York, NY (US);
Abstract
In accordance with the present invention an open and closed position indicator assembly is provided for use with a bottom operable tank car valve assembly. An operating shaft for the lading valve extends downwardly through the outlet chamber and includes a connection portion at its lower end. An indicator housing is integrally connected to that portion of the outlet chamber above the connection portion which surrounds the operating shaft. An indicator member located within the indicator housing is internally threaded and engages an externally threaded portion of the outlet chamber. The indicator member includes a lower non-round opening which is adopted to be driven by a cooperating non-round portion of the operating shaft. Rotation of the operating shaft with an operating handle will move the lading valve between open and closed positions and will also move the indicator member downwardly to a position below the indicator housing to a position viewable by the operator when the lading valve is in the open position, and will move the indicator member upwardly to a position within the indicator housing which is not viewable by the operator when the valve is in the closed position. In addition the extent to which the indicator member extends below the indicator housing may be used as a measure of the extent to which the lading valve is moved toward the open position.