EP0206031A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Reinforced rubber liner for centrifugal pump casings
Assignee: Baker Hughes Holdings LLC
•
Filing: 1986-06-05
•
Granted: —
•
Expires: 2006-06-05
Abstract
Abstract A half-shell rubber lining for a centrifugal pump reinforced in selective regions of its outer surface with a fabric mesh impregnated with a thermoset resin is disclosed.
Inventors
- 👤 J. Eugene Grisz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 18:30
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/426; F04D29/4286
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
76 words
A centrifugal pump reinforced rubber lining comprising: an uncured rubber lining having a volute region, a central region, an inlet region and a discharge region; reinforcement means in selective regions of said pump liner, said reinforcement means comprising a fabric mesh impregnated within a curable thermosetting resinous material which cures under substantially the same conditions as said rubber lining and which has a shrinkage factor upon curing which is substantially the same as said rubber lining.
Claim 2
Dependent Claim
76 words
A centrifugal pump reinforced rubber lining comprising: an uncured rubber lining having a volute region, a central region, an inlet region and a discharge region; reinforcement means in selective regions of said pump liner, said reinforcement means comprising a fabric mesh impregnated within a curable thermosetting resinous material which cures under substantially the same conditions as said rubber lining and which has a shrinkage factor upon curing which is substantially the same as said rubber lining.
Claim 3
Dependent Claim
71 words
In a rubber lining for a centrifugal pump, the improvement comprising: arch-like reinforcement means, the external surface of such lining being integral with the lining in the discharge nozzle of said lining; semi-arch reinforcement means in at least that portion of the volute section of the lining integral with the external surface of the lining proximate to said discharge nozzle, wherein said reinforcement means comprises a substantially rigid resin impregnated fabric.
Claim 4
Dependent Claim
71 words
In a rubber lining for a centrifugal pump, the improvement comprising: arch-like reinforcement means, the external surface of such lining being integral with the lining in the discharge nozzle of said lining; semi-arch reinforcement means in at least that portion of the volute section of the lining integral with the external surface of the lining proximate to said discharge nozzle, wherein said reinforcement means comprises a substantially rigid resin impregnated fabric.
Claim 5
Dependent Claim
45 words
A rubber lining for a centrifugal pump having integral reinforcing means, said integral reinforcing means comprising an outer shell of multiple plys of a resin impregnated fabric, said outer shell positioned in at least the discharge nozzle and the volute section of said rubber lining.
Claim 6
Dependent Claim
45 words
A rubber lining for a centrifugal pump having integral reinforcing means, said integral reinforcing means comprising an outer shell of multiple plys of a resin impregnated fabric, said outer shell positioned in at least the discharge nozzle and the volute section of said rubber lining.
Claim 7
Dependent Claim
25 words
The rubber lining of Claim 3 wherein a ply of resin impregnated fabric comprises a loose mesh of nylon filaments impregnated within a phenolic resin.
Claim 8
Dependent Claim
57 words
A half-shell, bowl-shaped elastomeric lining with a split cylinder discharge nozzle for a centrifugal pump, said lining having resin impregnated mesh-like substantially rigid reinforcements in half-cylinder form in said discharge region and in the two quadrants of the bowl adjacent to the discharge, said reinforcement in said quadrants located in the curved sidewall portion of the lining.
Claim 9
Dependent Claim
57 words
A half-shell, bowl-shaped elastomeric lining with a split cylinder discharge nozzle for a centrifugal pump, said lining having resin impregnated mesh-like substantially rigid reinforcements in half-cylinder form in said discharge region and in the two quadrants of the bowl adjacent to the discharge, said reinforcement in said quadrants located in the curved sidewall portion of the lining.
Claim 10
Dependent Claim
14 words
The lining of Claim 5, wherein said reinforcement is a resin reinforced fabric mesh.
Claim 11
Dependent Claim
19 words
The lining of Claim 6, wherein the reinforcement consists essentially of multiple plys of said resin reinforced fabric mesh.
Claim 12
Dependent Claim
28 words
The lining of Claim 5, wherein said reinforcing fabric mesh forms substantially the outer surface of the lining in those regions in which said reinforcing means is present.
Claim 13
Dependent Claim
12 words
The lining of Claim 5, wherein said fabric is a nylon material.
Claim 14
Dependent Claim
13 words
The lining of Claim 5, wherein said resin is a thermosetting phenolic resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.