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. 03, 2024
Filed:
Feb. 10, 2021
Gunderson Llc, Portland, OR (US);
Scott Hart, Milwaukie, OR (US);
Gunderson LLC, Lake Oswego, OR (US);
Abstract
Manway assemblies for railroad tank cars are disclosed. In some embodiments, the manway assemblies include a cover having a perimeter portion with a plurality of spaced grooves. The manway assemblies additionally include a plurality of spaced fasteners pivotably attached to the nozzle adjacent to the opening. The manway assemblies further include an interference member attached to the cover adjacent to at least one groove. The interference member prevents pivoting of the at least one fastener from a secured position in which the fastener is received in a corresponding groove, to an unsecured position in which the fastener is spaced from the corresponding groove when the cover is in a closed position. The interference member allows pivoting of the at least one fastener from the secured position to the unsecured position when the cover is in a partially open position in which pressure contained within the railroad tank car is vented.