US 12,466,448 B1
Railroad tank car manway nozzle assembly gasket
Robert Ridgway, Northbrook, IL (US)
Assigned to MPRC Products LLC, Cedar Rapids, IA (US)
Filed by MPRC PRODUCTS LLC, Cedar Rapids, IA (US)
Filed on Aug. 3, 2021, as Appl. No. 17/392,771.
Int. Cl. B61D 5/00 (2006.01); B65D 90/00 (2006.01); F16J 15/3268 (2016.01); F16J 15/3284 (2016.01)
CPC B61D 5/08 (2013.01) [F16J 15/3268 (2013.01); F16J 15/3284 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A gasket for sealing around a railroad tank car manway nozzle having an exterior portion, an end surface, and an interior portion, the gasket comprising:
a first portion defining an external gasket extension for overlapping an external portion of the manway nozzle;
a second portion defining a sealing surface contact portion for overlapping an end surface of the manway nozzle; and
a third portion defining an internal gasket extension for overlapping an internal portion of the manway nozzle;
wherein the third portion includes a ring portion extending at an angle from the internal gasket extension.