US4953496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure water jet cleaner and coating applicator
Assignee: Cepi Holdings Inc
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Filing: 1989-07-17
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Granted: 1990-09-04
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Expires: 2009-07-17
Abstract
Abstract An automated pipeline rehabilitation apparatus (10) is disclosed. The apparatus employs a centering assembly (24) with pivoting arms (26, 28) which can pivot between an operating position and a installation/removal position to allow the unit to be removed from a pipeline. Arcuate rings (38, 40) are mounted on the arms. Spray nozzles (44) are mounted on the arcuate rings for reciprocating arcuate motion along the rings to treat the pipeline. The nozzles (44) can be used to clean the pipeline and prepare the outer surface of the pipeline with high pressure water jets in training abrasives. The nozzles (44) can also be used to apply a coating, preferably a polyurethane coating to the pipeline.
Inventors
- 👤 Sidney A. Taylor
- 👤 Stanely J. Rogala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:34
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/023; B05; B05B; B05B13/00; B05B13/02; B05B13/0207; B05B13/0214; B05B13/04; B05B13/0436; B24; B24C; B24C3/00; B24C3/02; B24C3/06; B24C3/32; Y; Y10; Y10S; Y10S118/00; Y10S118/11; Y10S239/00; Y10S239/13
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
An apparatus for treating a pipeline, comprising: a centering assembly mounted on the pipeline for movement along the pipeline, said centering assembly having a frame member and at least one arm pivotally mounted to the frame member for movement between a first operating position and a second installation position; a nozzle carriage assembly mounted on the arm and defining at least one arcuate ring, the arcuate ring being concentric to the center axis of the pipeline when the arm is in the first operating position and spaced from the pipeline when the arm is in the second installation position to allow the apparatus to be installed and removed from the pipeline; and at least one spray nozzle mounted on the arcuate ring.
Claim 2
Independent Claim
122 words
An apparatus for treating a pipeline, comprising: a centering assembly mounted on the pipeline for movement along the pipeline, said centering assembly having a frame member and at least one arm pivotally mounted to the frame member for movement between a first operating position and a second installation position; a nozzle carriage assembly mounted on the arm and defining at least one arcuate ring, the arcuate ring being concentric to the center axis of the pipeline when the arm is in the first operating position and spaced from the pipeline when the arm is in the second installation position to allow the apparatus to be installed and removed from the pipeline; and at least one spray nozzle mounted on the arcuate ring.
Claim 3
Dependent Claim
99 words
The apparatus of claim 1 further comprising a second arm pivotally mounted to the frame member for movement between a first operating position and a second installation position; a second arcuate ring mounted on the second arm, the second arcuate ring being concentric to the center axis of the pipeline when the second arm is in the first operating position and spaced from the pipeline when the second arm is in the second installation position to allow the apparatus to be installed and removed from the pipeline; and at least one spray nozzle mounted on the second arcuate ring.
Claim 4
Dependent Claim
27 words
The apparatus of claim 1 wherein the spray nozzle is mounted on the arcuate ring for reciprocating arcuate travel for a predetermined arc along the annular ring.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein the spray nozzle is fixedly mounted on the arcuate ring.
Claim 6
Dependent Claim
27 words
The apparatus of claim 1 further comprising means for mixing a two-component coating material and providing the mixed material to said spray nozzle for coating the pipeline.
Claim 7
Dependent Claim
21 words
The apparatus of claim 1 further comprising means for supplying high pressure water to said spray nozzle for cleaning the pipeline.
Claim 8
Dependent Claim
28 words
The apparatus of claim 6 wherein the apparatus further comprises means for supplying an abrasive for entrainment in the water flow to enhance the cleaning of the pipeline.
Claim 9
Dependent Claim
139 words
The apparatus of claim 1 wherein the nozzle carriage assembly is removably mounted on the arm, said one spray nozzle being fixedly mounted on the arcuate ring of the nozzle carriage assembly, said apparatus further comprising a second nozzle carriage assembly defining at least one second arcuate ring, the second nozzle carriage assembly being mountable on the arm in substitution for the nozzle carriage assembly, the second arcuate ring being concentric to the center axis of the pipeline when the arm is in the first operating position and spaced from the pipeline when the arm is in the second installation position to allow the apparatus to be installed and removed from the pipeline; and at least one second spray nozzle mounted on the second arcuate ring for reciprocating arcuate travel for a predetermined arc along the second arcuate ring.
Claim 10
Dependent Claim
36 words
The apparatus of claim 1 further having a shield assembly for movement between a first position isolating the pipeline from the spray nozzle and a second position for the nozzle spray to impinge on the pipeline.
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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) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |