US4150794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid jet cutting nozzle and housing
Assignee: Gerber Camsco Inc
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Filing: 1977-07-26
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Granted: 1979-04-24
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Expires: 1997-07-26
Abstract
Abstract A high-velocity liquid jet cutting nozzle and housing for use with high-pressure fluid sources is disclosed. The nozzle housing eliminates the use of elastically deformable collars by having a nozzle mount of a material which yields only under the pressure of the liquid in the system. The nozzle mount extends downstream of the nozzle element and provides a yielding support, under pressure, for the nozzle element in the direction of fluid flow. The nozzle element, constructed from a jewel, typically sapphire, is thereby supported in a mounting element in a yieldable high-pressure seal when in operation. Different configurations can be used to produce a variety of cutting streams, depending on the material to be cut.
Inventors
- 👤 Bobby L. Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/02; B05B1/10; B26; B26F; B26F3/00; B26F3/004; E; E21; E21B; E21B7/00; E21B7/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
In a high-velocity liquid cutting jet system having a high-velocity nozzle with an orifice emitting a collimated jet of liquid for cutting purposes, a high-pressure conduit to deliver the liquid to the nozzle, a housing for said nozzle, a mounting plate for positioning said nozzle in the housing, the improvement wherein said housing is made from a material that is substantially undeformable at ambient conditions but yields under the working pressure of the liquid and said nozzle being loosely positioned on a portion of said mounting plate, said portion receiving pressure generated by said liquid onto said nozzle in the direction of liquid flow to effectuate a sealing arrangement between said nozzle and said mounting plate.
Claim 2
Dependent Claim
116 words
In a high-velocity liquid cutting jet system having a high-velocity nozzle with an orifice emitting a collimated jet of liquid for cutting purposes, a high-pressure conduit to deliver the liquid to the nozzle, a housing for said nozzle, a mounting plate for positioning said nozzle in the housing, the improvement wherein said housing is made from a material that is substantially undeformable at ambient conditions but yields under the working pressure of the liquid and said nozzle being loosely positioned on a portion of said mounting plate, said portion receiving pressure generated by said liquid onto said nozzle in the direction of liquid flow to effectuate a sealing arrangement between said nozzle and said mounting plate.
Claim 3
Dependent Claim
10 words
The apparatus of claim 1 wherein said housing is brass.
Claim 4
Dependent Claim
15 words
The apparatus of claim 1 further including means coupling said housing to said high-pressure conduit.
Claim 5
Dependent Claim
18 words
The apparatus of claim 1 wherein said mounting plate has a recess, said nozzle positioned in said recess.
Claim 6
Dependent Claim
28 words
The apparatus of claim 1 wherein said nozzle is placed directly on top of said mounting plate, said housing for said nozzle being treaded into said high-pressure conduit.
Claim 7
Dependent Claim
42 words
The apparatus of claim 1 further including a nozzle element mount positioned in said mounting plate, said nozzle element mount having a recessed portion for receiving said nozzle, said nozzle and nozzle element mount defining a flush face in the upstream direction.
Claim 8
Dependent Claim
63 words
The apparatus of claim 1 wherein said nozzle is generally cylindrical and having an axial bore therethrough, said nozzle having a tapered surface at the upstream end of the axial bore, said taper having a depth in the range of 0.005-0.015 inches from the upstream surface of said nozzle and said bore having a length to diameter ratio in the range of 0.2-2.5.
Claim 9
Dependent Claim
37 words
The nozzle of claim 7 wherein said bore produces a fine collimated jet for cutting homogeneous solids and wherein the length to diameter ratio is in the range of 1.5-2.5 with a taper depth of 0.005 inches.
Claim 10
Dependent Claim
25 words
The nozzle of claim 7 wherein said depth of taper is 0.01-0.015 inches and said length to diameter ratio is in the range of 1.5-1.8.
Claim 11
Dependent Claim
32 words
The nozzle of claim 7 for producing a wide, high-strength fluid jet wherein said depth of taper is 0.015 inches and said length to diameter ratio is in the range of 0.2-1.5.
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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |