US3843759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a reinforced resinous housing
Assignee: Individual
•
Filing: 1970-01-05
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Granted: 1974-10-22
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Expires: 1990-01-05
Abstract
Abstract The present invention discloses a method of making a reinforced, cured, resinous housing such as a pump housing which has high strength and a high resistance to corrosive and errosive fluids. The method includes the steps of forming an initial housing from a synthetic resin which has an internal portion which is essentially in its finished form and which will be subjected to the action of fluids, and an exterior, with the exterior of the initial housing being in unfinished form. A tensioning member is movably located adjacent or contiguous the exterior of the initial housing and has wall means for receiving and securing portions of an elongated reinforcing member. The elongated reinforcing member is wrapped about the exterior of the initial housing to cover at least a portion thereof and separated portions of the reinforcing member are secured to the wall means of the tensioning member. Thereafter, a force is exerted on the tensioning member to move the same relative to the initial housing to tension the wrapped reinforcing member and after this is accomplished, the wrapped reinforcing member is covered with a resin to finish the exterior of the housing. The resins which are capable of use in the method are quite varied and may be either thermosetting of thermplastic in nature. It has been found in the practice of the present invention that an epoxy resin system works extremely well.
Inventors
- 👤 D Keeham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:04
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29C70/06; B29C70/08; B29C70/081; B29C70/54; B29C70/56; B29C70/68; B29C70/86; B29L; B29L2031/00; B29L2031/748; B29L2031/7496; B29L2031/7506
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
158 words
THE METHOD OF MAKING AN IRREGULARLY SHAPED, REINFORCED RESINOUS PUMP OR VALVE HOUSING HAVING HIGH STRENGTH AND A HIGH RESISTANCE TO CORROSIVE FLUIDS INCLUDING THE STEPS OF FORMING AN INITIAL HOUSING FROM A RESIN WHICH INITAL HOUSING HAS AN INTERNAL PORTION AND AN EXTERIOR WITH THE EXTERIOR OF THE INITIAL HOUSING BEING IN UNFINISHED FORM AND HAVING A TENSIONING MEMBER LOCATED CONTIGUOUS TO THE EXTERIOR OF THE SAID INITIAL HOUSING AND MOVABLE RELATIVE THERETO WHICH TENSIONING MEMBER HAS WALL MEANS FOR RECEIVING AND SECURING PORTIONS OF AN ELONGATED REINFORCING MEMBER, WRAPPING AN ELONGATED REINFORCING MEMBER ABOUT THE EXTERIOR OF THE INITAL HOUSING TO COVER AT LEAST A PORTION THEREOF AND SECURING SEPARATED PORTIONS OF THE REINFORCING MEMBER TO THE WALL MEANS EXERTING A FORCE ON THE TENSIONING MEMBER TO MOVE SAME RELATIVE TO THE HOUSING TO TENSION THE WRAPPED REINFORCING MEMBER, AND THEREAFTER COVERING THE WRAPPED REINFORCING MEMBER WITH A RESIN TO FINISH THE EXTERIOR OF THE HOUSING.
Claim 2
Independent Claim
158 words
THE METHOD OF MAKING AN IRREGULARLY SHAPED, REINFORCED RESINOUS PUMP OR VALVE HOUSING HAVING HIGH STRENGTH AND A HIGH RESISTANCE TO CORROSIVE FLUIDS INCLUDING THE STEPS OF FORMING AN INITIAL HOUSING FROM A RESIN WHICH INITAL HOUSING HAS AN INTERNAL PORTION AND AN EXTERIOR WITH THE EXTERIOR OF THE INITIAL HOUSING BEING IN UNFINISHED FORM AND HAVING A TENSIONING MEMBER LOCATED CONTIGUOUS TO THE EXTERIOR OF THE SAID INITIAL HOUSING AND MOVABLE RELATIVE THERETO WHICH TENSIONING MEMBER HAS WALL MEANS FOR RECEIVING AND SECURING PORTIONS OF AN ELONGATED REINFORCING MEMBER, WRAPPING AN ELONGATED REINFORCING MEMBER ABOUT THE EXTERIOR OF THE INITAL HOUSING TO COVER AT LEAST A PORTION THEREOF AND SECURING SEPARATED PORTIONS OF THE REINFORCING MEMBER TO THE WALL MEANS EXERTING A FORCE ON THE TENSIONING MEMBER TO MOVE SAME RELATIVE TO THE HOUSING TO TENSION THE WRAPPED REINFORCING MEMBER, AND THEREAFTER COVERING THE WRAPPED REINFORCING MEMBER WITH A RESIN TO FINISH THE EXTERIOR OF THE HOUSING.
Claim 3
Dependent Claim
14 words
The method as claimed in claim 1, wherein the resin is a thermosetting resin.
Claim 4
Dependent Claim
30 words
The method as claimed in claim 1, wherein the elongated reinforcing member is selected from the group of materials consisting of metal, graphite, nylon, polyester resin, fiberglass and combinations thereof.
Claim 5
Dependent Claim
14 words
The method as claimed in claim 3, wherein the resin is a thermosetting resin.
Claim 6
Dependent Claim
14 words
The method as claimed in claim 3, wherein the resin is a thermoplastic resin.
Claim 7
Dependent Claim
15 words
The method as claimed in claim 4, wherein the thermosetting resin is an epoxy resin.
Claim 8
Dependent Claim
23 words
The method as claimed in claim 4, wherein the thermosetting resin is selected from the resins consisting of polyesters, phenolics, melamines and urethanes.
Claim 9
Dependent Claim
18 words
The method as claimed in claim 2, wherein the elongated reinforcing member is pre-wetted with a thermosetting resin.
Claim 10
Dependent Claim
18 words
The method as claimed in claim 3, wherein the elongated reinforcing member is pre-wetted with a thermosetting resin.
Claim 11
Dependent Claim
18 words
The method as claimed in claim 3, wherein the elongated reinforcing member is pre-wetted with a thermoplastic resin.
Claim 12
Dependent Claim
34 words
The method as claimed in claim 3, wherein a layer of woven cloth constructed of said selected material is placed on the exterior of the housing prior to the wrapping of the reinforcing member.
Claim 13
Dependent Claim
15 words
The method as claimed in claim 11, wherein the cloth is pre-wetted with a resin.
Claim 14
Dependent Claim
33 words
The method as claimed in claim 1, wherein the resin is applied to the wrapped reinforcing member by placing the housing and wrapped reinforcing member in a mold and forcing the resin thereinto.
Claim 15
Dependent Claim
29 words
The method as claimed in claim 4, wherein the resin from which the initial housing is constructed or the resin covering the wrapped fiberglass may have chopped fiberglass therein.
Claim 16
Dependent Claim
32 words
The method as claimed in claim 1, wherein the internal portion of the initial housing is in its finished condition as formed and is the portion to be subjected to corrosive fluids.
Claim 17
Dependent Claim
17 words
The method as claimed in claim 1, wherein the wall means of the tensioning member are pins.
Claim 18
Dependent Claim
57 words
The method as claimed in claim 1, wherein when the tensioning member is moved relative to the housing in exerting a tensioning force on the reinforcing member a space is created between the tensioning member and the initial housing and means are inserted in the space to prevent return relative movement and untensioning of the reinforcing member.
Claim 19
Dependent Claim
64 words
The method as claimed in claim 1, wherein when the tensioning member is moved relative to the housing in exerting a tensioning force on the reinforcing member a space is created between the tensioning member and the initial housing and the resin which covers the wrapped reinforcing member also fills the space preventing return of the tensioning member and untensioning of the reinforcing member.
Claim 20
Dependent Claim
64 words
The method as claimed in claim 13, wherein when the tensioning member is moved relative to the housing in exerting a tensioning force on the reinforcing member a space is created between the tensioning member and the initial housing and the resin which covers the wrapped reinforcing member also fills the space preventing return of the tensioning member and untensioning of the reinforcing member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |