Receptacles – Closures – Removable closure guided in rotary movement
Patent
1990-08-16
1992-05-12
Marcus, Stephen
Receptacles
Closures
Removable closure guided in rotary movement
220203, 220204, 220254, 220288, 220304, 220327, 220366, 220367, 220368, B65D 5116
Patent
active
051119552
ABSTRACT:
A non-corrosive, non-metallic hatch apparatus is provided for use on a container having a container opening with a container flange surrounding the container opening. A hatch base includes a base flange complementary to and constructed to be bolted to the container flange. The hatch base has a hatch opening defined therethrough and includes a base thread surrounding the hatch opening. A non-metallic hatch lid includes a lid thread defined thereon which is complementary to the base thread so that the hatch lid can be attached to the hatch base to close the hatch opening by threaded engagement of the lid thread with the base thread.
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Exhibit D--Brochure of Poly Processing Company entitled "Transtore Tanks Series II" dated Jun. 1, 1988.
Exhibit F--Brochure of Bonar Plastics entitled "Bonar Plastics Poly Payloader" dated Mar. 1988.
Baker Robert L.
Billingsley Larry D.
Stegemoeller Calvin L.
Beavers L. Waune
Cronin Stephen
Duzan James R.
Halliburton Company
Marcus Stephen
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