US3838815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow maker
Assignee: Individual
•
Filing: 1973-01-22
•
Granted: 1974-10-01
•
Expires: 1993-01-22
Abstract
Abstract A snow maker uses a blower forcing an air stream outward at at least 7000 feet per minute, and an injector receives pressurized water and directs it as a fine spray into the air stream so that the water is broken into fine drops that are carried along by the air stream and freeze into snow before landing.
Inventors
- 👤 B Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
F; F25; F25C; F25C3/00; F25C3/04; F25C2303/00; F25C2303/046; F25C2303/048; Y; Y10; Y10S; Y10S239/00; Y10S239/13
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
A snow maker comprising: a. a blower drawing in ambient air and acceleratiNg said ambient air into an output air stream traveling outward at at least 7000 feet per minute; b. a water injector having an axis approximately concentric with said air stream; c. means for supplying water under pressure to said injector; d. said injector having openings formed as arcuate slos around said injector for directing said water into said air stream; and e. said openings being from .010 to .030 inches across and angled at approximately 45* to said axis of said injector so said water is directed outward in a plurality of thin, conical sheets that break into fine drops carried along by said air stream so said drops freeze into snow before landing.
Claim 2
Dependent Claim
127 words
A snow maker comprising: a. a blower drawing in ambient air and acceleratiNg said ambient air into an output air stream traveling outward at at least 7000 feet per minute; b. a water injector having an axis approximately concentric with said air stream; c. means for supplying water under pressure to said injector; d. said injector having openings formed as arcuate slos around said injector for directing said water into said air stream; and e. said openings being from .010 to .030 inches across and angled at approximately 45* to said axis of said injector so said water is directed outward in a plurality of thin, conical sheets that break into fine drops carried along by said air stream so said drops freeze into snow before landing.
Claim 3
Dependent Claim
18 words
The snow maker of claim 1 wherein said injector is recessed into an output housing of said blower.
Claim 4
Dependent Claim
20 words
The snow maker of claim 2 wherein said water directed out of said injector is angled to clear said housing.
References Cited (Backward Citations)
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Cited
US2647800A
Cited
US2813753A
Cited
US3107060A
Cited
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Cited
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Cited
US3703991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |