US4872975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for separating abrasive material from a fluid used in fluid jet cutting
Assignee: Ingersoll Rand Co
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Filing: 1989-01-31
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Granted: 1989-10-10
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Expires: 2009-01-31
Abstract
Abstract A system for separating abrasive material from fluid used in fluid jet cutting includes a catcher tank, a settling tank and a pumping device which pumps fluid containing an abrasive material from the catcher tank and centrifugally separates an abrasive slurry from the fluid. A fluid conduit returns the fluid separated from the slurry to the cathcher tank. Another conduit directs the slurry to the settling tank where a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the pumping device.
Inventors
- 👤 Dan T. Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:02
CPC Classifications
B; B24; B24C; B24C9/00; B24C9/006; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
107 words
A system for separating abrasive material from a fluid used in fluid jet cutting, comprising: a catcher tank; a settling tank; means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; and second conduit means for directing of the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the means for pumping.
Claim 2
Independent Claim
107 words
A system for separating abrasive material from a fluid used in fluid jet cutting, comprising: a catcher tank; a settling tank; means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; and second conduit means for directing of the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the means for pumping.
Claim 3
Dependent Claim
24 words
The system as defined in claim 1, further including: fluid level control means for limiting fluid in the catcher tank to a desired level.
Claim 4
Dependent Claim
19 words
The system as defined in claim 2, further including: a dump valve connected to the fluid level control means.
Claim 5
Dependent Claim
20 words
The system as defined in claim 1, further including: means for regulating fluid flow rate in the first conduit means.
Claim 6
Dependent Claim
20 words
The system as defined in claim 4, further including: means for regulating fluid flow rate in the second conduit means.
Claim 7
Dependent Claim
124 words
In a system for separating abrasive material from a fluid used in fluid jet cutting having a catcher tank, a settling tank and interconnecting fluid conduits, the improvement comprising: means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; second conduit means for directing the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which the some of the abrasive material has settled is returned to the means for pumping; and means for regulating fluid flow rate in the system.
Claim 8
Dependent Claim
124 words
In a system for separating abrasive material from a fluid used in fluid jet cutting having a catcher tank, a settling tank and interconnecting fluid conduits, the improvement comprising: means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; second conduit means for directing the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which the some of the abrasive material has settled is returned to the means for pumping; and means for regulating fluid flow rate in the system.
Claim 9
Dependent Claim
24 words
The system as defined in claim 6, further including: fluid level control means for limiting fluid in the catcher tank to a desired level.
Claim 10
Dependent Claim
19 words
The system as defined in claim 7, further including: a dump valve connected to the fluid level control means.
Claim 11
Independent Claim
130 words
A system for separating abrasive material from a fluid used in fluid jet cutting, comprising: a catcher tank; means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; a settling tank; second conduit means for directing the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the means for pumping; fluid level control means for limiting fluid in the catcher tank to a desired level; and means for regulating fluid flow rate in the system.
Claim 12
Independent Claim
130 words
A system for separating abrasive material from a fluid used in fluid jet cutting, comprising: a catcher tank; means for pumping fluid, having an abrasive material suspended therein, from the catcher tank and centrifugally separating an abrasive slurry from the fluid; first conduit means for returning the fluid separated from the slurry to the catcher tank; a settling tank; second conduit means for directing the slurry to the settling tank wherein a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the means for pumping; fluid level control means for limiting fluid in the catcher tank to a desired level; and means for regulating fluid flow rate in the system.
Claim 13
Dependent Claim
19 words
The system as defined in claim 9, further including: a dump valve connected to the fluid level control means.
Claim 14
Dependent Claim
44 words
The system as defined in claim 10, wherein the means for regulating fluid flow rate in the system includes first means for regulating fluid flow rate in the first conduit means, and second means for regulating fluid flow rate in the second conduit means.
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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |