Hatch cover having a removable gasket
AssigneeSalco Products, Inc.
InventorsWilliam F. Burian, Brian Walker
Life of this patent
Estimating the term…
Abstract
A hatch cover for railroad car hatch openings has a body member with inner and outer depending circular flanges. The flanges are located so as to span the loading nozzle or coaming of the hatch. The flanges and body portion define a three-sided pocket between them which receives a removable gasket. The gasket is retained in the pocket by a plurality of clips either integrally molded into the lower edges of the flanges or held by fasteners. The clips extend radially toward the opposite flange. The gasket is sufficiently resilient to allow a user to flex the gasket past the clips during installation and removal of the gasket in and out of the pocket. During opening and closing of the cover the clips retain the gasket in the pocket.
Claims15
A hatch cover for a railroad car hatch, comprising a body member having an underside and adapted to overlie an upstanding loading nozzle of a railroad car hatch, the body member defining a gasket receiving pocket which is aligned with the upstanding nozzle when the cover is closed upon the hatch, a first set of individual, spaced-apart hooks on the underside of the body member outwardly of the upstanding nozzle when the cover is closed on a hatch, a second set of individual, spaced-apart hooks on the underside of the body member inwardly of the upstanding nozzle when the cover is closed on a hatch, each of said hooks including a leg portion and a clip integrally formed on the leg, the clips being spaced from the body member and extending toward the center of the pocket a distance sufficient to enable the clips to retain an otherwise unsecured gasket in the pocket while also allowing the gasket to be flexed past the clips for installation in and removal from the pocket, the clips having a width which is small compared to the total extent of the pocket.
A hatch cover comprising a body member, an outer flange attached to the body member and extending downwardly from a location at or near the perimeter of the body member, an inner flange attached to the body member and extending downwardly therefrom interiorly of the outer flange such that the body member, outer flange and inner flange define a three-sided, downwardly-open, gasket receiving pocket between them, and a plurality of individual, spaced-apart clips integrally molded on the inner and outer flanges, the clips being spaced from the body member and extending from one flange toward the opposite flange a distance sufficient to enable the clips to retain an otherwise unsecured gasket in the pocket while also allowing the gasket to be flexed past the clips for installation in and removal from the pocket the clips having a width which is small compared to the total extent of the pocket.
Dependencies are inferred from the claim text.