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US 5,513,954 AGranted
Multilayer pump liner
AssigneeEnviroTech Pumpsystems, Inc.
InventorRonald J. Bourgeois
Life of this patent
Estimating the term…
Abstract
A liner member for a pump comprises an inner layer of a rigid abrasion resistant material and an outer layer of an elastomer material adhesively bonded to the inner layer and forming a backing therefor. One or more metal connectors are embedded in the elastomer layer for connecting the elastomer layer (and concomitantly the abrasion resistant inner layer) to a pump casing so that the elastomer layer is sandwiched between the inner layer and the pump casing.
Claims20
A liner member for a pump, comprising:
- an inner layer of a rigid abrasion resistant material;
- an outer layer of an elastomer material bonded to said inner layer and forming a backing therefor;
- and
- connection means disposed solely on an outer side of said outer layer, opposite said inner layer, for connecting said outer layer and said inner layer to a pump casing so that said outer layer is sandwiched between said inner layer and the pump casing, said inner layer being attached to said connection means, and thus to said pump casing, only via said outer layer.
1 more element
A liner part for a pump, comprising:
- an inner layer of a rigid abrasion resistant material;
- and
- an outer layer of an elastomer material bonded to said inner layer and forming a backing therefor,
- said inner layer having a transversely oriented surface juxtaposable to an analogous surface of another liner part in forming an entire liner, said outer layer being provided with an integral runner extending over said transversely oriented surface.
1 more element
A pump comprising:
- a pump casing;
- an impeller rotatably mounted to said casing;
- an inner liner layer of a rigid abrasion resistant material;
- an outer liner layer of an elastomer material bonded to said inner layer and forming a backing therefor;
- and
- connection means for connecting said outer layer to said pump casing so that said outer layer is sandwiched between said inner layer and the pump casing;
- said inner liner layer including a plurality of liner parts made of said rigid abrasion resistant material, said liner parts being provided along respective outer surfaces with respective elastomer layers together forming said outer liner layer, said liner parts having abutting faces provided with said elastomer material.
4 more elements
Dependencies are inferred from the claim text.