IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0940899
(2010-11-05)
|
등록번호 |
US-8443530
(2013-05-21)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Holaday-Parks-Fabricators, Inc.
|
대리인 / 주소 |
Christensen O'Connor Johnson Kindness PLLC
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
An ice resurfacing sled including a fuel source directing fuel to a manifold which distributes it under a regulated pressure to a plurality of orifices where it is burned in expansion chambers. The hot gas flows into a melting chamber formed by a top surface, two lateral sled runners and the surface
An ice resurfacing sled including a fuel source directing fuel to a manifold which distributes it under a regulated pressure to a plurality of orifices where it is burned in expansion chambers. The hot gas flows into a melting chamber formed by a top surface, two lateral sled runners and the surface of the ice to be melted. The melting chamber is shaped to have a reduced cross sectional area near its rear outlet to assist in maintaining the flow of heated gas beneath the sled to optimize melting. A wind screen is provided at the rear of the sled to prevent tail winds from disrupting the flow of hot gas through the melting chamber.
대표청구항
▼
1. A portable ice resurfacer for resurfacing a sheet of ice, the resurfacer comprising: a sled having a top plate and a pair of opposed parallel runners, wherein said sled defines a volume between said opposed runners that cooperatively with the sheet of ice defines a melting chamber having as front
1. A portable ice resurfacer for resurfacing a sheet of ice, the resurfacer comprising: a sled having a top plate and a pair of opposed parallel runners, wherein said sled defines a volume between said opposed runners that cooperatively with the sheet of ice defines a melting chamber having as front entry and a rear exit;a bracket for mounting at least one tank containing a combustible fuel to said top plate;a manifold disposed at a forward end of said sled, wherein said manifold is configured to be fluidly connected to said at least one tank; anda plurality of nozzles fluidly connecting said manifold to said front entry of said melting chamber, such that ignition of combustible fuel exiting said nozzles will direct combustion gases into said melting chamber front entry, wherein the plurality of nozzles are configured to be angled with respect to the sheet or ice, such that the combustion gasses are directed to flow from the front entry toward the rear exit of the melting chamber;wherein said melting chamber slopes downwardly from said front entry to said rear exit such that said rear exit has a smaller area than said front entry of said melting chamber. 2. The portable ice resurfacer of claim 1, further comprising a plurality of expansion chambers, each expansion chamber receiving the combustion gasses from an associated one of said plurality of nozzles, wherein said expansion chambers expand the combustion gases horizontally and further direct the combustion gasses from the front entry toward the rear exit of the melting chamber. 3. The portable ice resurfacer of claim 1, further comprising a fuel tank mounted to said top plate, said fuel tank being configured to selectively deliver a combustible fuel to said manifold. 4. The portable ice resurfacer of claim 3, wherein said fuel tank comprises a propane tank. 5. The portable ice resurfacer of claim 3, further comprising a second fuel tank mounted tri said top plate, said second fuel tank being configured to selectively deliver a combustible fuel to said manifold. 6. The portable ice resurfacer of claim 5, further comprising a hose assembly fluidly connecting said fuel tanks to said manifold, wherein said hose assembly includes gas pressure regulator means. 7. The portable ice resurfacer of claim 3, further comprising insulation disposed between said melting chamber and said top plate. 8. The portable ice resurfacer of claim 3, further comprising a windscreen mounted to said sled and positionable to screen tail wind from said melting chamber rear exit. 9. The portable ice resurfacer of claim 3, further comprising means for manually towing said ice resurfacer over said sheet of ice. 10. The portable ice resurfacer of claim 9, wherein said means for manually towing said ice resurfacer over said sheet of ice comprises at least one flexible guideline that is attached to the sled. 11. The portable ice resurfacer of claim 3, wherein said bracket for mounting at least one tank containing a combustible fuel to said top plate is configured to selectively retain any of one, two and three fuel tanks. 12. An ice resurfacing sled comprising a top plate, a pair of runners extending downwardly therefrom, and a melting chamber open to the ice to be resurfaced; said melting chamber including a forward end having a plurality of burning gas nozzles, configured to direct hot combustion gas into the melting chamber and toward a rear gas exit, a pair of sidewalls and a top surface below the top plate of said sled;said melting chamber top surface sloping downwardly from said forward end toward said rear gas exit such that the cross-sectional area of said melting chamber is reduced from its forward end toward its rear gas exit end;where each nozzle is configured to direct combustion gasses into an associated expansion chamber, wherein each expansion chamber is configured to expand the combustion gasses in a plane and to direct the combustion gas at an oblique angle toward the ice and toward the rear gas exit. 13. The ice resurfacing sled of claim 12, including a fuel source mounted above said melting chamber, said fuel source being connected to a fuel distribution manifold positioned adjacent said expansion chambers, said manifold including a plurality of orifices directing fuel to be burned into said expansion chambers. 14. The ice resurfacing sled of claim 13, wherein said fuel source comprises a propane tank mounted on said ice resurfacing sled top plate, said propane tank being fluidly connected to said fuel distribution manifold by hose means. 15. The ice resurfacing sled of claim 13, wherein said fuel source comprises a plurality of propane tanks mounted on said ice resurfacing sled top plate, and further comprising hose means configured to carry a gas from said tanks to said fuel distribution manifold; and a gas pressure regulator means interconnected with said hose means to control the pressure of said gas carried from said tanks to said manifold. 16. The ice resurfacing sled of claim 12, wherein an inner surface of each of said pair of runners comprises said sidewalls of said melting chamber. 17. The ice resurfacing sled of claim 16, wherein said top surface of said melting chamber extends between said sidewalls below said sled top plate, said top surface sloping downwardly from said forward end toward said rear gas exit end to define a space between said top surface and said top plate, and further comprising insulation disposed in said space. 18. The ice resurfacing sled of claim 12, including a windscreen mounted adjacent said rear gas exit end of said melting chamber.
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