Tank connector construction
First Claim
1. A tank connector assembly comprising:
- a metal spud member having an internally threaded portion and a cylindrical wall portion;
a sub-assembly comprised of an insert member made from a polymer material and having an internal groove therein and an expandable band member positioned in said groove;
the sub-assembly of the insert member and expandable band member is positioned inside the cylindrical wall portion of said spud member; and
said expandable band being expanded in said groove of said insert member to produce a tight sealing contact between the insert member and the depending wall portion of said spud member.
3 Assignments
0 Petitions
Accused Products
Abstract
A tank connector assembly for mounting in the wall of a steel tank. A metal spud member having an internally threaded portion and a cylindrical wall portion is welded to the tank. A sub-assembly comprised of an insert member made from a polymer material and having an internal groove therein and an expandable band member positioned in the groove. The sub-assembly is positioned inside the cylindrical wall portion of the spud member. The expandable band is in the groove of the insert member is expanded to force the insert member into tight sealing contact with the spud member. A polymer material is introduced into the interior of the steel tank and the tank is then subjected to a rotational casting movement in the presence of heat to cause the polymer material in the tank to be uniformly distributed over the internal surface of the tank. The heat applied during the rotational casting step serves to cause the inner tank of polymer material to become bonded to the insert member.
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Citations
10 Claims
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1. A tank connector assembly comprising:
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a metal spud member having an internally threaded portion and a cylindrical wall portion; a sub-assembly comprised of an insert member made from a polymer material and having an internal groove therein and an expandable band member positioned in said groove; the sub-assembly of the insert member and expandable band member is positioned inside the cylindrical wall portion of said spud member; and said expandable band being expanded in said groove of said insert member to produce a tight sealing contact between the insert member and the depending wall portion of said spud member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tank and tank connector therefor comprising:
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an outer steel tank having at least one opening therein; an inner tank of polymer material mounted inside said outer steel tank; a tank connector assembly to facilitate a connection between the interior of said inner tank and tile exterior of said outer tank, said tank connection assembly comprising; a metal spud member having an internally threaded portion and a cylindrical wall portion; a sub-assembly comprised of an insert member made from a polymer material and having an internal groove therein and an expandable band member positioned in said groove; the sub-assembly of the insert member and expandable band member is positioned inside the cylindrical wall portion of said spud member; and said expandable band being expanded in said groove of said insert member to produce a tight sealing contact between the insert member and the depending wall portion of said spud member. - View Dependent Claims (9, 10)
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Specification