US4934564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drop jet metering method and system
Assignee: Eastman Kodak Co
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Filing: 1989-03-23
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Granted: 1990-06-19
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Expires: 2009-03-23
Abstract
Abstract A dispensing system for metering precise quantitites of liquid to a use site in droplet streams. The system includes a reservoir containing a quantity of liquid to be dispensed, a droplet generator for producing a stream of uniformly sized droplets of the liquid in the reservoir; and a device for controlling the droplet generator to produce a droplet stream containing a predetermined number of droplets. The control device can include an operator-settable counter for selectively varying the quantity of dispensed liquid by adjusting the number of produced droplets or by adjusting the size of droplets comprising the droplet stream.
Inventors
- 👤 Michael J. Piatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0241; B01L3/0272; B01L3/0268; G; G01; G01F; G01F11/00; G01F11/02; G01F11/08; B01L2200/00; B01L2200/06; B01L2200/061; G01N; G01N35/00; G01N35/10; G01N2035/1027; G01N2035/1034; G01N2035/1041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
A dispensing system for metering precise quantities of liquid to a use site, said system comprising: (a) a droplet dispenser device including: (i) hand-held housing means; (ii) a reservoir within said housing for containing a quantity of liquid to be dispensed; and (iii) droplet generator means for producing a stream of uniformly sized droplets of liquid in said housing means reservoir; (b) power and control means, external to said housing means, for controlling said droplet generator to produce a droplet stream containing a predetermined number of such droplets; and (c) umbilical means for connecting said droplet dispenser device and said power and control means.
Claim 2
Dependent Claim
104 words
A dispensing system for metering precise quantities of liquid to a use site, said system comprising: (a) a droplet dispenser device including: (i) hand-held housing means; (ii) a reservoir within said housing for containing a quantity of liquid to be dispensed; and (iii) droplet generator means for producing a stream of uniformly sized droplets of liquid in said housing means reservoir; (b) power and control means, external to said housing means, for controlling said droplet generator to produce a droplet stream containing a predetermined number of such droplets; and (c) umbilical means for connecting said droplet dispenser device and said power and control means.
Claim 3
Dependent Claim
31 words
The invention defined in claim 1 wherein said power and control means includes operator-settable counter means for selectively varying the quantity of dispensed liquid by adjusting the number of produced droplets.
Claim 4
Dependent Claim
32 words
The invention defined in claim 1 wherein said power and control means includes means for adjusting said drop generator means to selectively change the uniform size of droplets comprising said droplet stream.
Claim 5
Dependent Claim
29 words
The invention defined in claim 1 wherein said power and control means includes means for adjusting said drop generator means to selectively change the rate of drop generation thereof.
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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) | 1993-06-18 | 1993-12-18 | 1994-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-18 | 1997-12-18 | 1998-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-18 | 2001-12-18 | 2002-06-19 | $7700.00 | Window Closed / Lapsed |