US3796371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet piercing device
Assignee: Atlas Copco AB
•
Filing: 1972-07-07
•
Granted: 1974-03-12
•
Expires: 1992-07-07
Abstract
Abstract In a jet piercing device incorporating a liquid chamber wherein ultra high pressure is generated, a liquid is forced out through a nozzle having outlet means at the end of a conically contracted passage. The restricted area of flow of the outlet means is distributed and orientated in a direction transverse to the feeding direction of the nozzle so that a wide slot can be cut in the material worked upon with a low consumption of energy. The area of flow of the nozzle may be defined by a single flattened outlet or may be divided into two or more outlets extending in spaced relation longitudinally of the nozzle. The width of the pierced slot is adjusted by turning the nozzle relative to the feeding direction thereof.
Inventors
- 👤 N Taylor
- 👤 C Noren
- 👤 B Lundqvist
- 👤 O Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:46
CPC Classifications
E; E21; E21C; E21C25/00; E21C25/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing and means for hydraulically actuated differential piston means for amplifying the pressure to an ultra-high level in said chamber.
Claim 2
Dependent Claim
153 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing and means for hydraulically actuated differential piston means for amplifying the pressure to an ultra-high level in said chamber.
Claim 3
Dependent Claim
19 words
A jet piercing device according to claim 1 in which said conically contracted portion is coaxial with said nozzle.
Claim 4
Dependent Claim
153 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing, said area of flow of said outlet means being defined by a single outlet flattened relative to said nozzle.
Claim 5
Dependent Claim
153 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing, said area of flow of said outlet means being defined by a single outlet flattened relative to said nozzle.
Claim 6
Dependent Claim
134 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing, said area of flow of said outlet means being defined by a pair of outlets extending in parallel spaced relation longitudinally of said nozzle.
Claim 7
Dependent Claim
134 words
A hydraulic jet piercing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing, said area of flow of said outlet means being defined by a pair of outlets extending in parallel spaced relation longitudinally of said nozzle.
Claim 8
Dependent Claim
163 words
A hydraulic jet piecing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means, associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing means being provided in said housing for adjusting the angular orientation of said outlet means relative to said feeding direction thereby to adjust the piercing width of said jet.
Claim 9
Dependent Claim
163 words
A hydraulic jet piecing device comprising a housing, a pressure chamber in said housing, means for supplying liquid to said chamber, a nozzle connected to said chamber, outlet means in said nozzle having a restricted area of flow relative to the area of flow of said chamber, a conically contracted passage in said nozzle extending between said chamber and outlet means, means, associated with said housing for generating ultra high pressure in said chamber whereby a high velocity jet of liquid is expelled from said chamber via said passage through the restricted area of flow of said outlet means of said nozzle, means for feeding said housing in a direction transverse to said jet, and said area of flow of said nozzle being distributed and orientated transversely of the feeding direction of said housing means being provided in said housing for adjusting the angular orientation of said outlet means relative to said feeding direction thereby to adjust the piercing width of said jet.
Claim 10
Dependent Claim
39 words
A jet piercing device according to claim 5 in which said area of flow of said outlet means is defined by three outlets extending in spaced relation longitudinally of said nozzle and terminated in orifices disposed in triangular orientation.
References Cited (Backward Citations)
US2475676A
Cited
US2969190A
Cited
US3343794A
Cited
US3455515A
Cited
US3521820A
Cited
US3520477A
Cited
US3490696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |