Manway cover with integrally formed vent
AssigneeIreland, Inc. D/B/A Core-Rosion Products
InventorSteven Ireland
Life of this patent
Estimating the term…
Abstract
A venting solution to large storage tanks is disclosed wherein a manway cover is formed with a vent, eliminating the need to affix a vent to the wall of the tank and allowing standardized manway covers with different vent sizes to be applied either in a retrofit or in new tanks. The covers can be formed two at a time to increase production, and can be fitted with a larger vent than would otherwise be practical with some tank diameters.
Claims8
A combination vent and cover for a tank, comprising:
- a circumferential base plate adapted to fit over a port of a tank and seal the tank, the base plate having a bolt hole pattern coinciding with a bolt hole pattern of the tank;
- an integral stem formed centrally in the base plate projecting outwardly from the plate;
- a vent sized to fit over the stem and connect to the stem, the vent allowing the tank to dispel air as the tank is being filled.
A double molded manway cover for a tank having a first cover molded to a second cover, each cover having a circumferential base plate adapted to fit over a port of a tank, and an integral stem formed centrally in the base plate of each manway cover, where both covers are formed in a single molding operation and separated to yield two covers.
A tank for storing materials comprising:
- a storage compartment defined by a plurality of surfaces and a conical upper wall with a manway opening;
- a manway cover adapted to cover the manway opening, the manway cover including a vent structure for venting the tank when material is forced into the tank.
Dependencies are inferred from the claim text.