US3897904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing artificial snow
Assignee: Individual
•
Filing: 1974-02-21
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Granted: 1975-08-05
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Expires: 1994-02-21
Abstract
Abstract Mixing chamber means define a mixing chamber adapted to be filled with water. Said mixing chamber means comprise a wall. At least one discharge nozzle communicates with said mixing chamber. An air inlet pipe has an outlet opening in said mixing chamber. A water supply pipe is directly connected to said wall and has a water outlet opening through which said water supply pipe communicates with said mixing chamber. Said water outlet opening is smaller in area than the cross-section of said mixing chamber so that said water supply pipe is formed with a turbulenceproducing edge defining said water outlet opening.
Inventors
- 👤 Karl Kiegerl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F25; F25C; F25C3/00; F25C3/04; F25C2303/00; F25C2303/048; F25C2303/0481
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
An apparatus for producing artificial snow, which comprises mixing chamber means defining at least one mixing chamber adapted to be filled with water, said mixing chamber means comprising a wall, a discharge nozzle connected to said mixing chamber, an air inlet pipe having an outlet opening in said mixing chamber, and a water supply pipe directly connected to said wall and having a water outlet opening through which said water supply pipe communicates with said mixing chamber, said water outlet opening being smaller in area and in diameter than the cross-section of said mixing chamber and smaller in diameter than the internal diameter of said water supply pipe so that said water supply pipe is formed with a turbulenceproducing edge defining said water outlet opening.
Claim 2
Independent Claim
125 words
An apparatus for producing artificial snow, which comprises mixing chamber means defining at least one mixing chamber adapted to be filled with water, said mixing chamber means comprising a wall, a discharge nozzle connected to said mixing chamber, an air inlet pipe having an outlet opening in said mixing chamber, and a water supply pipe directly connected to said wall and having a water outlet opening through which said water supply pipe communicates with said mixing chamber, said water outlet opening being smaller in area and in diameter than the cross-section of said mixing chamber and smaller in diameter than the internal diameter of said water supply pipe so that said water supply pipe is formed with a turbulenceproducing edge defining said water outlet opening.
Claim 3
Dependent Claim
59 words
An apparatus as set forth in claim 1, in which said air inlet pipe extends through said water supply pipe and beyond said water outlet opening, said water supply pipes comprises a wall which is opposite to said water outlet opening and joined to said air inlet pipe, and said air inlet pipe communicates with an air supply pipe.
Claim 4
Dependent Claim
47 words
An apparAtus as set forth in claim 2, in which said water supply pipe and said air supply pipe are curved and, a plurality of said mixing chambers are provided, which are spaced apart and disposed on the outside of the curvature of the water supply pipe.
Claim 5
Dependent Claim
33 words
An apparatus as set forth in claim 1, said air inlet pipe and discharge nozzle and water outlet opening being coaxial, said water outlet opening being annular and surrounding said air inlet pipe.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |