Non-metallic obround blanking hatch apparatus

Receptacles – Vehicle mountable tank

Patent

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Details

220327, 220328, 220565, 220661, 49463, B65D 8812

Patent

active

054890411

ABSTRACT:
Apparatus for holding materials including a container having a container wall, a non-circular container opening extending through the container wall, a non-circular container flange connected to the exterior of the container wall and surrounding the container opening. A non-metallic, non-circular access hatch connectable to the container flange by bolting and having a plurality of apertures extending therethrough is provided. The non-metallic, non-circular access hatch preferably includes a primary opening having a removable cover and a variety of associated components being accommodated by respective apertures such as a recirculation line, a pressure relief valve, a vacuum relief valve, and a fluid level indicator. Preferably the hatch apparatus and the primary opening cover are made of an ultra high molecular weight polyethylene material.

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Exhibits A, B, and C relate to a Clay & Bailey Model 1890 manway hatch.
Exhibit D is a brochure provided by Poly Processing Company entitled Transtore Tanks Series II dated Jun. 1, 1988.
Exhibit E is a photograph of a threaded hatch opening and cover associated with the Poly Processing tank described in Exhibit D.
Exhibit F is a brochure provided by Bonar Plastics entitled Bonar plastics Poly Payloader.RTM..
Exhibit G is a photograph of a threaded access opening and cover associated with the Bonar Plastics device described in Exhibit F.

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