Patent US3700170A successfully refreshed from Google Patents.
US3700170A
Expired / Lapsed
US
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Generator of monodisperse aerosols
Assignee: Czech Academy of Sciences
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Filing: 1971-06-02
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Granted: 1972-10-24
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Expires: 1991-06-02
Abstract
Abstract Generator of monodisperse aerosols, which forms fine droplets of liquid of equal size by breaking a liquid bridge formed from a constant liquid volume between curved contact surfaces comprising a capillary filled with a liquid and having a blade-like projection at the outlet end strand means such as a wire or fiber of which one extremity is attached to an oscillatory or vibrating means or device having a cylindrical portion at the one extremity thereof and which is arranged so as to be located in the dead center of the extreme limits of oscillations, the strand means being a contact with the blade-like projection of the capillary and with the surface level of the liquid in the capillary, and means for directing a supply of a gaseous phase for breaking the liquid bridge located substantially perpendicular to that of the strand motion.
Inventors
- 👤 Dohnalova-Binkova Blanka
- 👤 Bedrich Binek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:40
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/21; B05; B05B; B05B17/00; B05B17/04; B05B17/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
Generator of monodisperse aerosols which forms in a repetitive mechanical manner fine droplets of liquid of equal size by breaking a liquid bridge formed by a constant volume of liquid dispersed between curved contact surfaces comprising a capillary filled with a liquid and having a blade-like projection at the outlet end thereof, oscillating means having a cylindrical end portion located in the dead center of the extreme limits of oscillatory distance and the opposite end provided with strand means in oscillatory contact with said projection and with the level surface of liquid in said capillary to form a bridge of said liquid and means for carrying gaseous material into contact with and to break said liquid bridge located substantially perpendicular to the direction of movement of said strand means.
Claim 2
Dependent Claim
129 words
Generator of monodisperse aerosols which forms in a repetitive mechanical manner fine droplets of liquid of equal size by breaking a liquid bridge formed by a constant volume of liquid dispersed between curved contact surfaces comprising a capillary filled with a liquid and having a blade-like projection at the outlet end thereof, oscillating means having a cylindrical end portion located in the dead center of the extreme limits of oscillatory distance and the opposite end provided with strand means in oscillatory contact with said projection and with the level surface of liquid in said capillary to form a bridge of said liquid and means for carrying gaseous material into contact with and to break said liquid bridge located substantially perpendicular to the direction of movement of said strand means.
Claim 3
Dependent Claim
36 words
Generator as defined in claim 1, wherein the capillary is conically ground at the outlet end to form a circular blade-like projection defining an apex angle varying within the range of from 10* to 120* .
Claim 4
Dependent Claim
25 words
Generator as defined in claim 1, wherein the axes of the strand means and the capillary define an adjustable angle of from 90 to 150*.
Claim 5
Dependent Claim
28 words
Generator as defined in claim 1, including a micro-shift device enabling the relative position of the strand means and the capillary to be three-dimensionally adjusted along three co-ordinates.
Claim 6
Dependent Claim
35 words
Generator as defined in claim 1 wherein the capillary is conically ground at the outlet end to form a circular blade-like projection defining an apex angle varying within the range of from 30* to 45*.
Claim 7
Dependent Claim
13 words
Generator as defined in claim 1 wherein the strand means is a wire.
Claim 8
Dependent Claim
13 words
Generator as defined in claim 1 wherein the strand means is a fiber.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |