US3914053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice nuclei counter
Assignee: United States Department of the Navy
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Filing: 1974-12-09
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Granted: 1975-10-21
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Expires: 1994-12-09
Abstract
Abstract An ice nuclei counter having a moving film the surface of which is coated by super cooled water. The film is moved past a port through which the ice nuclei pass, and over an ice crystal counter.
Inventors
- 👤 Carl H Morley
- 👤 Lohr A Burkardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
G; G01; G01W; G01W1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
An appartus for counting ice nuclei, comprising; an air inlet port for providing a flow of ice nuclei within a preselected range of sizes; water wetted film; means to supercool the wetted film; means for moving said film past said port such that said film is in the path of said flow of ice nuclei; and means for interrogating said film subsequent to its movement past said port to measure the number of ice crystals present in said flow, in which, each ice crystals has a very high probability of representing a single ice nuclei.
Claim 2
Dependent Claim
95 words
An appartus for counting ice nuclei, comprising; an air inlet port for providing a flow of ice nuclei within a preselected range of sizes; water wetted film; means to supercool the wetted film; means for moving said film past said port such that said film is in the path of said flow of ice nuclei; and means for interrogating said film subsequent to its movement past said port to measure the number of ice crystals present in said flow, in which, each ice crystals has a very high probability of representing a single ice nuclei.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |