CA1128328A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
High pressure snow gun
Assignee: Froid Industriel York Sa (le)
•
Filing: 1980-04-18
•
Granted: 1982-07-27
•
Expires: 2000-04-18
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A snow gun for making artificial snow by atomizing a mixture of air and water is disclosed. The snow gun comprises a hollow body, a compressed air supply conduit terminated by an injection nozzle accommodated inside the hollow body and opening at an end into the hollow body. A pressurized water supply conduit opens into a space between the hollow body and the air supply conduit. A mixing chamber for mixing air and water communicates through an inlet port with the interior of the hollow body, the inlet port facing the discharge nozzle of the injection nozzle. The injection nozzle is displaceable longitudinally relative to the inlet port of the mixing chamber for adjusting the water flow passage to the mixing chamber. A needle valve adjusts the cross sectional area of discharge orifice of the air injection nozzle. The mixing chamber comprises the bore of a main nozzle extending in the continuation of the injection nozzle. A divergent nozzle extends from the discharge end of the bore and opens to the surrounding air.
Inventors
- 👤 Pierre Girardin
- 👤 Max Duplan
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-05 14:31
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/0433; F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/463; F25; F25C; F25C3/00; F25C3/04; F25C2303/00; F25C2303/048; F25C2303/0481
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
159 words
A snow gun for making artificial snow by atomizing a mixture of air and water, said snow gun comprising a hollow body, a compressed air supply conduit or passageway terminated by an air injection nozzle, said injection nozzle being accommodated inside said hollow body and opening at an end into said hollow body, a pressurized water supply conduit or passageway opening into a space between said hollow body and said air supply conduit or passageway, a mixing chamber for mixing air and water communicating with the interior of said hollow body through an inlet port, said inlet port being located facing a discharge orifice of said injection nozzle, means for adjusting air flow and water flow passages into said mixing chamber, said mixing chamber being constituted by an elongated bore of a main nozzle extending in the continuation of said injection nozzle, and a divergent nozzle extending from the discharge end of said bore opening into the surrounding air.
Claim 2
Dependent Claim
159 words
A snow gun for making artificial snow by atomizing a mixture of air and water, said snow gun comprising a hollow body, a compressed air supply conduit or passageway terminated by an air injection nozzle, said injection nozzle being accommodated inside said hollow body and opening at an end into said hollow body, a pressurized water supply conduit or passageway opening into a space between said hollow body and said air supply conduit or passageway, a mixing chamber for mixing air and water communicating with the interior of said hollow body through an inlet port, said inlet port being located facing a discharge orifice of said injection nozzle, means for adjusting air flow and water flow passages into said mixing chamber, said mixing chamber being constituted by an elongated bore of a main nozzle extending in the continuation of said injection nozzle, and a divergent nozzle extending from the discharge end of said bore opening into the surrounding air.
Claim 3
Dependent Claim
38 words
The snow gun according to claim 1, said means for adjusting including means for displacing said injection nozzle longitudinally relative to said inlet port of said mixing chamber for adjusting the water flow passage into said mixing chamber.
Claim 4
Dependent Claim
31 words
The snow gun according to claim 1 or 2, wherein said means for adjusting further comprises means for adjusting the cross-sectional area of said air discharge orifice of said injection nozzle.
Claim 5
Dependent Claim
32 words
The snow gun according to claim 3, wherein said means for adjusting the cross-sectional area of said air discharge orifice essentially comprises needle valve incorporated inside said air supply conduit or passageway.
Claim 6
Dependent Claim
18 words
The snow gun according to claim 1, wherein said injection nozzle has a discharge orifice of convergent-divergent configuration.
Claim 7
Dependent Claim
19 words
The snow gun according to claim 5, wherein said needle valve comprises helical grooves for the flow of air.
Claim 8
Dependent Claim
35 words
The snow gun according to claim 1, further comprising helical vanes inside said hollow body opening proximate to said inlet port of said mixing chamber for setting the flow of pressurized water into rotational motion.
Claim 9
Dependent Claim
25 words
The snow gun according to claim 1, wherein said bore of said mixing chamber comprises means for intermixing the mixture of air and water therein
Claim 10
Dependent Claim
16 words
The snow gun according to claim 8, wherein said means for intermixing comprise grooves or ramps.
Claim 11
Dependent Claim
36 words
The snow gun according to claim 1, wherein said main nozzle is extended by a diffusion tip or nozzle of constant cross-sectional area equal to the cross-sectional area of the end section of said divergent nozzle.
Claim 12
Dependent Claim
55 words
A battery or snow guns according to claim 1, and a source of compressed air for supplying said snow guns with air at substantially constant pressure, said battery comprising and automatic control means for adjusting the water flow rate oh each of said snow guns as a function of the wet temperature of the air.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.