Patent US3796067A successfully refreshed from Google Patents.
Patent US3983740A successfully refreshed from Google Patents.
US3983740A
Expired / Lapsed
US
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Method and apparatus for forming a stream of identical drops at very high speed
Assignee: Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
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Filing: 1975-02-07
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Granted: 1976-10-05
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Expires: 1995-02-07
Abstract
Abstract A method and apparatus for producing a very fast succession of identical well-defined drops, driven at very high speed, in which a jet of liquid which is divided into droplets by high-frequency vibration is produced at very high speed.
Inventors
- 👤 Francois Danel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0241; B01L3/0268; B01J; B01J19/00; B01J19/08; B01J19/10; B01J2/00; B01J2/18; B05; B05B; B05B12/00; B05B12/16; B05B12/18; B05B17/00; B05B17/04; B05B17/06; B05B17/0607; B26; B26F; B26F3/00; B26F3/004; G; G01; G01N; G01N35/00; G01N35/10; G01N2035/1027; G01N2035/1034; G01N2035/1041; Y; Y10; Y10T; Y10T83/00; Y10T83/364
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
99 words
A method of forming a very fast succession of identical and well-defined drops driven at a very high speed, comprising the steps of supplying a liquid under very high pressure of approximately 750 psi or greater to the inlet of a high pressure chamber, generating a very high speed jet of liquid under very high static pressure at the outlet of said high pressure chamber, and dividing said very high speed jet of liquid into a stream of drops by the application of high-frequency vibration at high power in a direction along the path of said jet of liquid.
Claim 2
Independent Claim
99 words
A method of forming a very fast succession of identical and well-defined drops driven at a very high speed, comprising the steps of supplying a liquid under very high pressure of approximately 750 psi or greater to the inlet of a high pressure chamber, generating a very high speed jet of liquid under very high static pressure at the outlet of said high pressure chamber, and dividing said very high speed jet of liquid into a stream of drops by the application of high-frequency vibration at high power in a direction along the path of said jet of liquid.
Claim 3
Dependent Claim
25 words
A method s defined in claim 1, wherein the step of generating includes generating a jet having a speed of approximately 100 meters/second or greater.
Claim 4
Dependent Claim
21 words
A method as defined in claim 1, wherein the step of dividing includes applying high-frequency vibration of approximately 200Kc/s or greater.
Claim 5
Dependent Claim
35 words
A method as defined in claim 1, further comprising the step of applying the well-defined drops driven at very high speed to a surface for at least one of cleaning, cutting and drilling holes therein.
Claim 6
Dependent Claim
21 words
A method as defined in claim 1, wherein the high pressure is in the range of 750 psi to 3,000 psi.
Claim 7
Independent Claim
88 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed, comprising a high pressure chamber; means for supplying said chamber with liquid under high pressure of approximately 750 psi or greater, means for generating a high speed jet including one wall of said chamber forming an injector nozzle capable of providing a fast jet; and ultrasonic generator means for generating a high-frequency field focused at a given point in said liquid on the level of the origin of said jet.
Claim 8
Independent Claim
88 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed, comprising a high pressure chamber; means for supplying said chamber with liquid under high pressure of approximately 750 psi or greater, means for generating a high speed jet including one wall of said chamber forming an injector nozzle capable of providing a fast jet; and ultrasonic generator means for generating a high-frequency field focused at a given point in said liquid on the level of the origin of said jet.
Claim 9
Dependent Claim
23 words
device according to claim 6, wherein said generating means generates a jet having a very high speed of approximately 100 meters/second or greater.
Claim 10
Dependent Claim
20 words
A device according to claim 6, wherein said generating means generates a high-frequency field of approximately 200 Kc/s or greater.
Claim 11
Dependent Claim
19 words
device according to claim 6, wherein said ultrasonic generator means is situated in said chamber upstream from said injector.
Claim 12
Dependent Claim
28 words
A device according to claim 6, wherein said ultrasonic generator means comprises a generator producing a field whose wavelength is equal to the diameter of said injector nozzle.
Claim 13
Dependent Claim
44 words
A device according to claim 6, wherein said injector nozzle forms a reverse taper towards the exterior of said chamber in the direction of the path of said drops, said nozzle being wider at the exterior of said chamber than at the interior thereof.
Claim 14
Dependent Claim
30 words
A device according to claim 11, wherein said chamber is in the shape of a cylinder, the longitudinal axis of said cylinder being parallel to said path of said drops.
Claim 15
Dependent Claim
25 words
A device according to claim 12, wherein the wall of said cylinder through which said jet passes is perpendicular to said path of said drops.
Claim 16
Dependent Claim
45 words
A device according to claim 6, further including a container surrounding said injector nozzle and into which said drops enter, said container being kept at the vapor pressure of the liquid used and a sample disposed in said container to which said drops are directed.
Claim 17
Dependent Claim
43 words
A device according to claim 6, wherein said high pressure chamber is provided with at least one orifice disposed parallel to the longitudinal axis of the chamber and said means for supplying said chamber with liquid under high pressure supplies the liquid therethrough.
Claim 18
Independent Claim
99 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed, comprising a high pressure chamber; means for supplying said chamber with liquid under high pressure, one wall of said chamber forming an injector nozzle capable of providing a fast jet; and ultrasonic generator means for generating a high-frequency field focused at a given point in said liquid on the level of the origin of said jet; and further including at the output of said injector nozzle, means for supplying gas surrounding said drops and having the same speed as said drops.
Claim 19
Independent Claim
99 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed, comprising a high pressure chamber; means for supplying said chamber with liquid under high pressure, one wall of said chamber forming an injector nozzle capable of providing a fast jet; and ultrasonic generator means for generating a high-frequency field focused at a given point in said liquid on the level of the origin of said jet; and further including at the output of said injector nozzle, means for supplying gas surrounding said drops and having the same speed as said drops.
Claim 20
Independent Claim
96 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed comprising a chamber supplied with liquid under very high pressure of approximately 750 psi or greater, means for generating a jet including one wall of said chamber forming an injector nozzle means for supplying a fast jet, said injector nozzle means being provided with means for generating an ultrasonic vibration along the axis of said injector nozzle means provided in the form of a magnetrostrictive element in surrounding relation thereto and connected to a source of high frequency.
Claim 21
Independent Claim
96 words
A device for forming a very fast succession of identical and well-defined drops at a very high speed comprising a chamber supplied with liquid under very high pressure of approximately 750 psi or greater, means for generating a jet including one wall of said chamber forming an injector nozzle means for supplying a fast jet, said injector nozzle means being provided with means for generating an ultrasonic vibration along the axis of said injector nozzle means provided in the form of a magnetrostrictive element in surrounding relation thereto and connected to a source of high frequency.
Claim 22
Dependent Claim
24 words
A device according to claim 17, wherein said generating means generates a jet having a very high speed of approximately 100 meters/second or greater.
Claim 23
Dependent Claim
22 words
A device according to claim 17, wherein said source of high frequency provides a high-frequency of approximately 200 Kc/s or greater. pg,30
Claim 24
Dependent Claim
46 words
A device according to claim 17, wherein said injector nozzle means forms a reverse taper towards the exterior of said chamber in the direction of the path of said drops, said nozzle means being wider at the exterior of said chamber than at the interior thereof.
Claim 25
Dependent Claim
30 words
A device according to claim 20, wherein said chamber is in the shape of a cylinder, the longitudinal axis of said cylinder being parallel to said path of said drops.
Claim 26
Dependent Claim
25 words
A device according to claim 21, wherein the wall of said cylinder through which said jet passes is perpendicular to said path of said drops.
Claim 27
Dependent Claim
34 words
A device according to claim 17, characterized in that it includes, at the output of said injector nozzle means, means for supplying gas surrounding said drops and having the same speed as said drops.
Claim 28
Dependent Claim
46 words
A device according to claim 17, further including a container surrounding said injector nozzle means and into which said drops enter, said container being kept at the vapor pressure of the liquid used and a sample disposed in said container to which said drops are directed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |