US4369850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure fluid jet cutting and drilling apparatus
Assignee: Valley Systems Inc
•
Filing: 1980-07-28
•
Granted: 1983-01-25
•
Expires: 2000-07-28
Abstract
Abstract A high pressure fluid jet drilling system operable to produce the same drilling effect as a rotating nozzle, but without utilizing a high pressure rotary seal or coupling. The drilling effect is obtained by mounting a non-rotating drilling nozzle within a rotatable case eccentrically with respect to the axis of rotation of the case.
Inventors
- 👤 Clark R. Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/028; B26; B26F; B26F3/00; B26F3/004; E; E21; E21B; E21B10/00; E21B10/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A high pressure fluid jet drilling and cutting system adapted to be connected to a source of high pressure fluid, and comprising: a fluid jet nozzle for ejecting a high velocity fluid jet stream; a non-rotating fluid supply conduit interconnecting said nozzle with said source of high pressure fluid; and eccentric drive means including a rotatable cylindrical shell surrounding said conduit attached to said nozzle and operable to move said nozzle in a general circular path without rotating said nozzle with respect to said supply conduit.
Claim 2
Dependent Claim
86 words
A high pressure fluid jet drilling and cutting system adapted to be connected to a source of high pressure fluid, and comprising: a fluid jet nozzle for ejecting a high velocity fluid jet stream; a non-rotating fluid supply conduit interconnecting said nozzle with said source of high pressure fluid; and eccentric drive means including a rotatable cylindrical shell surrounding said conduit attached to said nozzle and operable to move said nozzle in a general circular path without rotating said nozzle with respect to said supply conduit.
Claim 3
Dependent Claim
27 words
The system of claim 1 wherein: said supply conduit includes a deformable section near said nozzle which can flex under the influence of said eccentric drive means.
Claim 4
Dependent Claim
36 words
The system of claim 1 wherein: said eccentric drive means includes a rotatable tubular case having a longitudinal axis of rotation and wherein said nozzle is mounted within said case and radially offset from said axis.
Claim 5
Dependent Claim
25 words
The system of claim 3 wherein: said tubular case has an axial end wall formed with a radially offset aperture through which said nozzle extends.
Claim 6
Dependent Claim
16 words
The system of claim 4 including: a bearing mounted within said aperture for supporting said nozzle.
Claim 7
Dependent Claim
29 words
The system of claim 5 wherein: said nozzle is mounted through said aperture with said jet stream directed at some desired angle with respect to said axis of rotation.
Claim 8
Dependent Claim
17 words
The system of claim 6 including: a replaceable plug surrounding said nozzle and mounted within said aperture.
Claim 9
Dependent Claim
17 words
The system of claim 3 including: a non-rotatable tubular case surrounding and protecting said rotatable tubular case.
Claim 10
Dependent Claim
81 words
The drilling system of claim 1 wherein: said rotatable cylindrical shell has an end wall mounted thereon formed with an aperture that is radially offset from the axis of said shell; a cutting bit mounted on the exterior of said end wall; and said fluid jet nozzle is rotatably mounted within said aperture and directed to eject a high velocity jet stream in the direction of advance of said cutting bit, whereby said nozzle does not rotate as said shell rotates.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |