US3755876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for repairing valve seats
Assignee: Individual
•
Filing: 1972-07-10
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Granted: 1973-09-04
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Expires: 1992-07-10
Abstract
Abstract A system and apparatus for the repair of valves that use a faucet washer for mating engagement with a seat disposed perpendicular to the axis of the valve stem wherein the washer and seat are damaged. A provided cutter that is centered with respect to the seat and/or stem cuts a torus groove in the original seat structure for the reception of a ring formed replacement seat. A bond cement that is non-soluble with respect to the fluid carried by the valve holds the replacement seat engaged in the groove, and a soluble adhesive can be used to bond the replacement ring to a replacement washer to assure correct alignment of such seat, its receiving groove and the replaced washer.
Inventors
- 👤 J Beasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:29
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/46; B; B23; B23C; B23C3/00; B23C3/02; B23C3/05; B23C3/051; B23C3/053; B23C3/056; B23P; B23P13/00; B23P13/02; B23P6/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49407; Y10T29/49409; Y10T29/49718; Y10T29/49719; Y10T29/53; Y10T29/53552
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
104 words
A method for the repair of the damaged valve seat of valves wherein the seat surrounds a flow opening and is disposed perpendicular to the axis of the bonnet guided stem for such valve comprising the steps of removing the valve stem and washer, cutting a torus groove in the structure providing the original valve seat utilizing a cutter centered with respect to said flow opening, providing and inserting a ring structure in said torus groove with a flat surface of said ring exposed above the groove to provide a replacement valve seat structure, and adhesively cementing said ring in place in said groove.
Claim 2
Independent Claim
104 words
A method for the repair of the damaged valve seat of valves wherein the seat surrounds a flow opening and is disposed perpendicular to the axis of the bonnet guided stem for such valve comprising the steps of removing the valve stem and washer, cutting a torus groove in the structure providing the original valve seat utilizing a cutter centered with respect to said flow opening, providing and inserting a ring structure in said torus groove with a flat surface of said ring exposed above the groove to provide a replacement valve seat structure, and adhesively cementing said ring in place in said groove.
Claim 3
Dependent Claim
27 words
The method as set forth in claim 1 wherein the exposed face of said replacement ring-seat is positioned perpendicularly with respect To the stem of said valve.
Claim 4
Dependent Claim
22 words
The method as set forth in claim 1 wherein said cutter is further centered with respect to the original valve stem location.
Claim 5
Dependent Claim
25 words
The method as set forth in claim 3 wherein a bonnet component is applied to the valve body to provide additional centering for said cutter.
Claim 6
Dependent Claim
24 words
The method as set forth in claim 1 and further comprising the additional step wherein a replacement washer is applied to said valve stem.
Claim 7
Dependent Claim
36 words
The method as set forth in claim 5 wherein the replacement ring and replacement washer are adhered each to each utilizing an adhesive that is soluble with respect to the fluid being carried by the valve.
Claim 8
Dependent Claim
44 words
The method as set forth in claim 6 wherein the replacement ring and washer are applied to the valve stem for reinsertion into the valve body to assure proper alignment of all components as the replacement ring is moved into the cut torus groove.
Claim 9
Dependent Claim
47 words
The method as set forth in claim 7 inclusive of the further step of applying an adhesive that is non-soluble with respect to the fluid being carried by the valve to the lower face of the replacement ring structure for adhesively joining said ring in said groove.
Claim 10
Dependent Claim
123 words
Apparatus for the replacement of damaged valve seats and washers in valves wherein the original seat surrounds a centrally disposed flow passage that is aligned with the axis of the stem for said valve comprising a hollow cutter for insertion into said valve, tapered guide means for reciprocal engagement within said cutter and adapted for engagement in the flow passage of said valve for centering said cutter with respect thereto, cutter elements on said cutter for cutting a torus groove in the valve structure originally providing the valve seat, means for inserting and placing a ring formed replacement seat in said groove, said ring being secured and held in place so that an exposed face thereof defines a new seat for said valve.
Claim 11
Dependent Claim
123 words
Apparatus for the replacement of damaged valve seats and washers in valves wherein the original seat surrounds a centrally disposed flow passage that is aligned with the axis of the stem for said valve comprising a hollow cutter for insertion into said valve, tapered guide means for reciprocal engagement within said cutter and adapted for engagement in the flow passage of said valve for centering said cutter with respect thereto, cutter elements on said cutter for cutting a torus groove in the valve structure originally providing the valve seat, means for inserting and placing a ring formed replacement seat in said groove, said ring being secured and held in place so that an exposed face thereof defines a new seat for said valve.
Claim 12
Dependent Claim
35 words
Apparatus as set forth in claim 9 wherein said cutter is cylindrical with a cooperatively formed guide means, and additionally comprising a resilient element for urging said guide outwardly toward engagement with said flow passage.
Claim 13
Dependent Claim
28 words
Apparatus as set forth in claim 9 and further comprising a bonnet guide element for engagement with said valve body and providing additional guide means for said cutter.
Claim 14
Dependent Claim
35 words
Apparatus as set forth in claim 9 wherein said ring formed seat is of height slightly greater than the depth of said groove whereby the thus exposed face provides the replacement seat for said valve.
Claim 15
Dependent Claim
34 words
Apparatus as set forth in claim 9 wherein an adhesive cement that is non-soluble with respect to the fluid carried by said valve is used to secure and hold the replacement ring-seat in place.
Claim 16
Dependent Claim
35 words
Apparatus as set forth in claim 13 wherein a replacement washer is used in said with, with washer and ring-seat being provided as a unitary component to facilitate said inserting and placing within said valve.
Claim 17
Dependent Claim
41 words
Apparatus as set forth in claim 14 wherein an adhesive that is soluble with respect to the fluid that is carried by the valve is used to join the washer and the replacement ring-seat together prior to said inserting and placing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |