US4945688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for entraining abrasive granules within a high pressure fluid jet and process of using same
Assignee: Electric Power Research Institute
•
Filing: 1985-10-22
•
Granted: 1990-08-07
•
Expires: 2005-10-22
Abstract
Abstract A high pressure fluid jet nozzle apparatus having a mixing chamber for entraining abrasive granules within a high pressure fluid jet. A plunger valve and a method for preventing wetting and caking of abrasive granules within a high pressure fluid jet nozzle are also disclosed.
Inventors
- 👤 Gene G. Yie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:26
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/02; B24C5/04; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/149; B24C3/00; B24C3/02; B24C7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A high pressure water jet nozzle for entraining an abrasive material within a high pressure water jet, comprising: (a) A nozzle body adapted for fluid communication with a high pressure fluid and a source of abrasive materials; (b) orifice means disposed in said nozzle body so as to be in fluid communication with said high pressure fluid for dividing said high pressure fluid into a predetermined pattern of smaller high pressure fluid streams; and (c) an orifice cone disposed within said nozzle body so as to be in fluid communication with said high pressure fluid, said orifice cone having orifice passages disposed therethrough at predetermined locations to provide said predetermined pattern of high pressure fluid streams, said orifice passages are disposed within said orifice cone to provide a converging pattern of high pressure fluid streams, said converging pattern of high pressure fluid streams converging at a predetermined point external to said water jet nozzle to provide for a converging shaped cut in or through a workpiece.
Claim 2
Dependent Claim
166 words
A high pressure water jet nozzle for entraining an abrasive material within a high pressure water jet, comprising: (a) A nozzle body adapted for fluid communication with a high pressure fluid and a source of abrasive materials; (b) orifice means disposed in said nozzle body so as to be in fluid communication with said high pressure fluid for dividing said high pressure fluid into a predetermined pattern of smaller high pressure fluid streams; and (c) an orifice cone disposed within said nozzle body so as to be in fluid communication with said high pressure fluid, said orifice cone having orifice passages disposed therethrough at predetermined locations to provide said predetermined pattern of high pressure fluid streams, said orifice passages are disposed within said orifice cone to provide a converging pattern of high pressure fluid streams, said converging pattern of high pressure fluid streams converging at a predetermined point external to said water jet nozzle to provide for a converging shaped cut in or through a workpiece.
Claim 3
Dependent Claim
170 words
A high pressure water jet nozzle for entraining an abrasive material within a high pressure water jet, comprising: (a) a nozzle body adapted for fluid communication with a high pressure fluid and a source of abrasive materials; (b) orifice means disposed in said nozzle body so as to be in fluid communication with said high pressure fluid for dividing said high pressure fluid into a predetermined pattern of smaller high pressure fluid stream; and (c) an orifice cone disposed within said nozzle body so as to be in fluid communication with said high pressure fluid, said orifice cone having orifice passages disposed therethrough at predetermined locations to provide said predetermined pattern of high pressure fluid streams, said orifice passages are disposed within said orifice cone to provide a diverging pattern of high pressure fluid streams, said diverging pattern of high pressure fluid steams diverging to a predetermined width at a predetermined point external to said water jet nozzle to provide for a diverging shaped cut in or through a workpiece.
Claim 4
Dependent Claim
170 words
A high pressure water jet nozzle for entraining an abrasive material within a high pressure water jet, comprising: (a) a nozzle body adapted for fluid communication with a high pressure fluid and a source of abrasive materials; (b) orifice means disposed in said nozzle body so as to be in fluid communication with said high pressure fluid for dividing said high pressure fluid into a predetermined pattern of smaller high pressure fluid stream; and (c) an orifice cone disposed within said nozzle body so as to be in fluid communication with said high pressure fluid, said orifice cone having orifice passages disposed therethrough at predetermined locations to provide said predetermined pattern of high pressure fluid streams, said orifice passages are disposed within said orifice cone to provide a diverging pattern of high pressure fluid streams, said diverging pattern of high pressure fluid steams diverging to a predetermined width at a predetermined point external to said water jet nozzle to provide for a diverging shaped cut in or through a workpiece.
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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |