Patent US4172472A successfully refreshed from Google Patents.
US4172472A
Expired / Lapsed
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Method of applying a repair clamp to a pipe
Assignee: Sensus Spectrum LLC
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Filing: 1978-02-16
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Granted: 1979-10-30
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Expires: 1998-02-16
Abstract
Abstract A method for rapidly clamping a repair clamp tightly around a pipe which contemplates a number of steps including the steps of taking up slack in the clamp and then applying the necessary clamping force for tightening the clamp on the pipe.
Inventors
- 👤 Thomas D. Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:04
CPC Classifications
B; B25; B25B; B25B25/00; B25B25/005; F; F16; F16L; F16L55/00; F16L55/18; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/598; Y10T137/6109; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49826; Y10T29/49947; Y10T29/49948
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
A method of pulling opposed flanges toward each other comprising the steps of: (1) Opening the jaws of the tool used in pulling the flanges to the widest setting; (2) Engaging said jaws with the outer sides of said opposed flanges; (3) Using one lever system on said tool to effect rapid closing movement of said jaws, until resistance to jaw movement equals or exceeds the force applied through said one lever system; and, (4) Using a second lever system to effect further closing movement of said jaws, until the desired flange proximity is attained.
Claim 2
Independent Claim
95 words
A method of pulling opposed flanges toward each other comprising the steps of: (1) Opening the jaws of the tool used in pulling the flanges to the widest setting; (2) Engaging said jaws with the outer sides of said opposed flanges; (3) Using one lever system on said tool to effect rapid closing movement of said jaws, until resistance to jaw movement equals or exceeds the force applied through said one lever system; and, (4) Using a second lever system to effect further closing movement of said jaws, until the desired flange proximity is attained.
Claim 3
Independent Claim
135 words
A method of applying a repair clamp to a pipe, comprising the steps of: (1) Selecting the proper repair clamp; (2) Encircling the pipe with said clamp; (3) Opening the jaws of the repair clamp application tool to the widest setting; (4) Engaging said jaws with the outer faces of the flanges on said repair clamp; (5) Using one lever system on said tool to effect rapid closing movement of said jaws, until resistance to jaw movement equals or exceeds the force applied through said one lever system; (6) Using a second lever system to effect further closing movement of said jaws, until said repair clamp is tightened sufficiently to control leakage from said pipe; (7) Tightening the fastener assemblies associated with said repair clamp; and, (8) Loosening and removing said repair clamp application tool.
Claim 4
Independent Claim
135 words
A method of applying a repair clamp to a pipe, comprising the steps of: (1) Selecting the proper repair clamp; (2) Encircling the pipe with said clamp; (3) Opening the jaws of the repair clamp application tool to the widest setting; (4) Engaging said jaws with the outer faces of the flanges on said repair clamp; (5) Using one lever system on said tool to effect rapid closing movement of said jaws, until resistance to jaw movement equals or exceeds the force applied through said one lever system; (6) Using a second lever system to effect further closing movement of said jaws, until said repair clamp is tightened sufficiently to control leakage from said pipe; (7) Tightening the fastener assemblies associated with said repair clamp; and, (8) Loosening and removing said repair clamp application tool.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |