US4716611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning pipes, tubes, and the like by launching pigs
Assignee: Barry Brothers Specialised Services Pty Ltd
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Filing: 1985-10-04
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Granted: 1988-01-05
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Expires: 2005-10-04
Abstract
Abstract Pipes, tubes and the like, for example, in heat exchangers, can be cleaned internally using sonic energy, a relatively incompressible pig and a flushing liquid. The flushing liquid is supplied via a pressure outlet from a quick operating valve to one or more launchers for launching pigs. The launchers are mounted on either an x-y frame movable support or a rotary axis adapter and radially movable support for positioning the launchers with respect to the ends of the tubes to be cleaned.
Inventors
- 👤 Peter L. Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
F; F28; F28G; F28G15/00; F28G15/02; F28G7/00; B; B08; B08B; B08B2209/00; B08B2209/005
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
Apparatus for cleaning one or more tubes which comprises in combination a source of high pressure liquid and quick-operating valve means connected via a pressure outlet or outlets to one or more launchers for launching pigs, wherein each launcher comprises a high pressure connecting means and a launcher tip, which launcher tip has a frustoconical nozzle section for sealingly engaging the end of a tube to be cleaned, said one or more launchers being mounted upon movable location and support means, which means comprises an X-Y frame for maintaining said one or more launchers in position with respect to the ends of said one or more tubes, whereby said one or more tubes may be cleaned sequentially or simultaneously.
Claim 2
Dependent Claim
119 words
Apparatus for cleaning one or more tubes which comprises in combination a source of high pressure liquid and quick-operating valve means connected via a pressure outlet or outlets to one or more launchers for launching pigs, wherein each launcher comprises a high pressure connecting means and a launcher tip, which launcher tip has a frustoconical nozzle section for sealingly engaging the end of a tube to be cleaned, said one or more launchers being mounted upon movable location and support means, which means comprises an X-Y frame for maintaining said one or more launchers in position with respect to the ends of said one or more tubes, whereby said one or more tubes may be cleaned sequentially or simultaneously.
Claim 3
Dependent Claim
38 words
Apparatus as claimed in claim 1, wherein said movable location and support means includes means for maintaining said one or more launchers in position and for resisting back pressure when said one or more launchers are being used.
Claim 4
Dependent Claim
116 words
Apparatus for cleaning one or more tubes which comprises in combination a source of high pressure liquid and quick-operating valve means connected via a pressure outlet or outlets to one or more launchers for launching pigs, wherein each launcher comprises a high pressure connecting means and a launcher tip, which launcher tip has a frustoconical nozzle section for sealingly engaging the end of a tube to be cleaned, said one or more launchers being mounted upon a rotary axis adapter having radially-movable support means for maintaining said one or more launchers in position with respect to the ends of said one or more tubes, whereby said one or more tubes may be cleaned sequentially or simultaneously.
Claim 5
Dependent Claim
116 words
Apparatus for cleaning one or more tubes which comprises in combination a source of high pressure liquid and quick-operating valve means connected via a pressure outlet or outlets to one or more launchers for launching pigs, wherein each launcher comprises a high pressure connecting means and a launcher tip, which launcher tip has a frustoconical nozzle section for sealingly engaging the end of a tube to be cleaned, said one or more launchers being mounted upon a rotary axis adapter having radially-movable support means for maintaining said one or more launchers in position with respect to the ends of said one or more tubes, whereby said one or more tubes may be cleaned sequentially or simultaneously.
Claim 6
Dependent Claim
73 words
Apparatus as claimed in claim 3 wherein said rotary axis adapter comprises one or more radial support beams in combination with an axial support means and said radially-movable support means for said one or more launchers, which axial support means attaches to a bundle of said tubes and which radially-movable support means maintains said one or more launchers in position and resists back pressure when said one or more launchers are being used.
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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) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |