Compression limiting manway gasket
AssigneeSalco Products, Inc.
InventorsVedran Dzolovic, David A. Oestermeyer, Thomas A. Kohls, William Borowski
Life of this patent
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Abstract
A gasket for sealing between the open end of a manway nozzle body of a containment vessel and an associated cover comprising a resilient annular ring member having a bail including a plurality of rigid arcuate inserts spaced about the bail that extends between radially inner and radially outer depending legs. The bail includes at least one annular upstanding chevron extending about an upper surface and at least one annular depending chevron extending about a lower surface. The inserts and bail have about the same thickness. A method includes compressing the gasket between the manway nozzle and cover, and the rigid inserts limit the compression of the gasket.
Claims17
A gasket for sealing between the open end of a manway nozzle body of a containment vessel and an associated cover comprising:
- a resilient annular ring member having radially inner and radially outer depending legs with an annular bail extending between said legs and including a plurality of rigid arcuate inserts spaced about said bail;
- and
- wherein said radially outer leg includes at least one tab depending from a distal end positioned in a predetermined relation to said inserts.
A railroad car having a tubular manway body defining an access opening, said body having an upper generally planar annular gasket contact surface, a cover pivotally mounted to said manway body to close said opening, defining a lower generally planar annular gasket contact surface,
- wherein said manway body includes a plurality of securement brackets disposed about said opening;
- an eye bolt pivotally supported on each said securement bracket, each said eye bolt including a threaded end and a threaded nut thereon;
- said cover including a clamping plate having a plurality of slots aligned with said securement brackets sized to receive said eye bolts with said nuts positioned about said clamping plate;
- a resilient annular ring member having a bail including a plurality of rigid arcuate inserts spaced about said bail;
- wherein said gasket is compressed between said upper generally planar annular gasket contact surface of said manway body and said lower generally planar annular gasket contact surface of said cover by said eye bolts and nuts of said securement brackets,
- wherein said inserts are circumferentially spaced about said bail and disposed in radial alignment with said securement brackets, and
- wherein said bail includes a radially inner annular depending leg and a radially outer annular depending leg having at least one tab extending from a distal end thereof, and said tab is disposed in a predetermined position relative to said inserts.
Dependencies are inferred from the claim text.