US3858358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure liquid and abrasive cleaning apparatus
Assignee: Butterworth Jetting Systems Inc
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Filing: 1973-01-02
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Granted: 1975-01-07
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Expires: 1993-01-02
Abstract
Abstract A high pressure cleaning apparatus including a blasting nozzle for separately directing a liquid and gas-abrasive mixture outwardly toward an object being cleaned; and, pumping apparatus for pumping liquid and a gas-abrasive mixture to the blasting nozzle, the blasting nozzle including mixing means for mixing the liquid with the gas-abrasive mixture outwardly of the nozzle for propelling the gas-abrasive mixture at high velocity and pressure. Control means operable at the nozzle are provided for controlling the flow of liquid and gas-abrasive mixture to the nozzle.
Inventors
- 👤 John E Stachowiak
- 👤 John B Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:31
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/02; B24C7/00; B24C7/0046; B24C7/0053; B24C7/0076
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A liquid-abrasive cleaning apparatus, comprising: a blasting nozzle for separately directing liquid and a gasabrasive mixture exclusive of any liquid outwardly toward an object for cleaning same; a liquid supply connected with said nozzle and liquid pump means for pumping said liquid outwardly of said blasting nozzle at a high blast pressure; a gas supply and an abrasive supply connected with said nozzle, and compressor means for mixing abrasive with gas and for pumping a gas-abrasive mixture outwardly of said blasting nozzle at a lower pressure than said high blast pressure; and said blasting nozzle including a central, low pressure, nozzle portion in fluid communication with said gas-abrasive mixture, said gas-abrasive mixture being directed outwardly of said central nozzle portion in a low-velocity stream; and said blasting nozzle further including a plurality of circumferentially spaced, high pressure nozzle portions positioned about said central nozzle portion, each of said circumferentially spaced nozzle being in fluid communication with said high pressure liquid and directing outwardly, separately from said gas-abrasive mixture, high velocity liquid toward said low-velocity, gas-abrasive stream whereby said gasabrasive mixture is propelled to said object with said highvelocity blasting water.
Claim 2
Dependent Claim
190 words
A liquid-abrasive cleaning apparatus, comprising: a blasting nozzle for separately directing liquid and a gasabrasive mixture exclusive of any liquid outwardly toward an object for cleaning same; a liquid supply connected with said nozzle and liquid pump means for pumping said liquid outwardly of said blasting nozzle at a high blast pressure; a gas supply and an abrasive supply connected with said nozzle, and compressor means for mixing abrasive with gas and for pumping a gas-abrasive mixture outwardly of said blasting nozzle at a lower pressure than said high blast pressure; and said blasting nozzle including a central, low pressure, nozzle portion in fluid communication with said gas-abrasive mixture, said gas-abrasive mixture being directed outwardly of said central nozzle portion in a low-velocity stream; and said blasting nozzle further including a plurality of circumferentially spaced, high pressure nozzle portions positioned about said central nozzle portion, each of said circumferentially spaced nozzle being in fluid communication with said high pressure liquid and directing outwardly, separately from said gas-abrasive mixture, high velocity liquid toward said low-velocity, gas-abrasive stream whereby said gasabrasive mixture is propelled to said object with said highvelocity blasting water.
Claim 3
Dependent Claim
31 words
The structure set forth in claim 1, wherein: each of said circumferentially spaced nozzle portions has an axis which intersects the axis of said central nozzle portion at an acute angle.
Claim 4
Dependent Claim
57 words
The structure set forth in claim 1, wherein said circumferentially spaced nozzle portions include: a first set of circumferentially spaced nozzles having axes which intersect the axis of said central nozzle at a first angle; and a second set of circumferentially spaced nozzles having axes which intersect the axis of said central nozzle at a second angle.
Claim 5
Dependent Claim
136 words
A water-abrasive cleaning device, comprising: a blasting nozzle for separately directing water and an air-abrasive mixture exclusive of any liquid outwardly toward an object for cleaning same, said blasting nozzle being adapted for connection to a supply of low pressure, air-abrasive mixture supply and to a high pressure water supply; said blasting nozzle includes a central, low pressure, nozzle portion in communication with said low pressure air-abrasive mixture supply, said air-abrasive mixture being directly outwardly of said nozzle in a low-velocity stream; and said blasting nozzle further including a pluralIty of circumferentially spaced, high pressure nozzle portions positioned about said central nozzle portion, being in communication with said high pressure water supply and directing high velocity water toward said low-velocity, air-abrasive stream whereby said air-abrasive mixture is propelled to said object with said high-velocity blasting water.
Claim 6
Dependent Claim
136 words
A water-abrasive cleaning device, comprising: a blasting nozzle for separately directing water and an air-abrasive mixture exclusive of any liquid outwardly toward an object for cleaning same, said blasting nozzle being adapted for connection to a supply of low pressure, air-abrasive mixture supply and to a high pressure water supply; said blasting nozzle includes a central, low pressure, nozzle portion in communication with said low pressure air-abrasive mixture supply, said air-abrasive mixture being directly outwardly of said nozzle in a low-velocity stream; and said blasting nozzle further including a pluralIty of circumferentially spaced, high pressure nozzle portions positioned about said central nozzle portion, being in communication with said high pressure water supply and directing high velocity water toward said low-velocity, air-abrasive stream whereby said air-abrasive mixture is propelled to said object with said high-velocity blasting water.
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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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |