Patent US3658124A successfully refreshed from Google Patents.
US3658124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air operated ice rink
Assignee: Individual
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Filing: 1970-08-06
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Granted: 1972-04-25
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Expires: 1990-08-06
Abstract
Abstract A skating rink having a flat ice supporting surface consisting of a plurality of adjacent air passageways, and one or more automatically controlled blowers connected to the passageways for forcing frigid air from the atmosphere through the passageways to maintain a slab of ice on the surface of the support.
Inventors
- 👤 Joseph R Tippmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:04
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; E01C13/102; E01C13/105; F; F25; F25C; F25C3/00; F25C3/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
An ice skating rink comprising: a.a plurality of longitudinally extending air ducts positioned adjacent eaCh other to form a surface for supporting a layer of ice, one end of each of said air ducts being opened to the atmosphere, b. a plenum connected to the other end of each of said air ducts, said plenum having one or more fans for forcing outside air through said air ducts, c. means between said supporting surface and said layer of ice for collecting water from the surface of said ice as said ice melts, and d. means connected to said fans for controlling the operation of said fans in response to the temperature of said outside air and said ice to thereby refreeze said collected water.
Claim 2
Dependent Claim
124 words
An ice skating rink comprising: a.a plurality of longitudinally extending air ducts positioned adjacent eaCh other to form a surface for supporting a layer of ice, one end of each of said air ducts being opened to the atmosphere, b. a plenum connected to the other end of each of said air ducts, said plenum having one or more fans for forcing outside air through said air ducts, c. means between said supporting surface and said layer of ice for collecting water from the surface of said ice as said ice melts, and d. means connected to said fans for controlling the operation of said fans in response to the temperature of said outside air and said ice to thereby refreeze said collected water.
Claim 3
Dependent Claim
46 words
An ice skating rink as set forth in claim 1 wherein said air ducts are formed by two U-shaped members positioned adjacent each other such that the arms of one of said U-shaped members extends a short distance over the arms of said adjacent U-shaped member.
Claim 4
Dependent Claim
31 words
An ice skating rink as set forth in claim 1 wherein said means between said supporting surface and said layer of ice is a plastic liner which forms a waterproof pan.
Claim 5
Dependent Claim
46 words
An ice skating rink as set forth in claim 3 further comprising a plurality of members positioned below said air ducts for supporting said air ducts and a plurality of blocks positioned between said members and the earth for leveling said members and said air ducts.
Claim 6
Dependent Claim
42 words
An ice skating rink as set forth in claim 1 wherein said means connected to said fans comprises a first thermostat for sensing the ambient air temperature and a second thermostat positioned in said ice for sensing the temperature of said ice.
Claim 7
Dependent Claim
56 words
An ice skating rink as set forth in claim 5 wherein said first thermostat turns on said fan when said air temperature reaches approximately 25* F and turns off said fans when said air temperature reaches approximately 27* F and wherein said second thermostat turns off said fans when said ice temperature reaches approximately 23* F.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |