US3986342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of securing a perimeter fence around an ice rink without embedding into ground
Assignee: Individual
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Filing: 1975-08-29
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Granted: 1976-10-19
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Expires: 1995-08-29
Abstract
Abstract With the great increase in the game of ice hockey there is demand for large numbers of lower cost portable ice rinks that can make dual use of recreational land. Heretofore, the hockey "dasher" boards around the perimeter of the ice rink have had to be fastened by embedding into concrete or other special solid base in order to withstand the battering and collisions of players, resurfacing machines and hockey equipment as well as the expanding pressure of the ice as it is constantly melted and refrozen at its edges. This has meant special preparations and difficulty in dual use of recreational areas as playing field, tennis courts, lawn area, parking lot, etc. A method of securing the dasher boards into the refrigerated ice slab is disclosed so that no attachment is required into the ground below and no damage is done to it. The ice is frozen as a continuous slab extending out for a foot or so behind the boards, the boards being supported on cantilever metal posts which provide bonding with the ice and provision for refrigerant piping underneath and behind the boards, and a cover box is provided which not only covers the bonding ice behind the boards but also acts as a cover for refrigerant header pipes instead of the usual expensive trench. Now for the first time unskilled personnel can completely assemble a refrigerated ice rink, make and maintain the ice, and then pack it away at the end of the season, allowing for the alternate recreational area use to begin.
Inventors
- 👤 Calvin D. MacCracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:11
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; E01C13/102; E01C13/105
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
134 words
A method of preventing high stress forces between the ice slab of an ice skating rink and its perimeter fence including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under and outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said fence panels and said vertical posts will be frozen rigidly in said ice slab and will be free to move with the expansion and contraction forces of said ice slab.
Claim 2
Independent Claim
134 words
A method of preventing high stress forces between the ice slab of an ice skating rink and its perimeter fence including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under and outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said fence panels and said vertical posts will be frozen rigidly in said ice slab and will be free to move with the expansion and contraction forces of said ice slab.
Claim 3
Independent Claim
157 words
A method of securing uniform freezing effect on the ice adjoining the perimeter of an ice rink including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under and outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby the actual edge of the ice slab is moved outward behind the perimeter fence so that the thermal heat flow into the edge does not affect the ice inside the perimeter fence, and the freezing conduits, being distributed uniformly under and behind said perimeter fence, give uniform heat withdrawal from said ice just inside the perimeter fence.
Claim 4
Independent Claim
157 words
A method of securing uniform freezing effect on the ice adjoining the perimeter of an ice rink including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under and outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby the actual edge of the ice slab is moved outward behind the perimeter fence so that the thermal heat flow into the edge does not affect the ice inside the perimeter fence, and the freezing conduits, being distributed uniformly under and behind said perimeter fence, give uniform heat withdrawal from said ice just inside the perimeter fence.
Claim 5
Independent Claim
135 words
A method of constructing a rigid, vertical-standing, perimeter fence around an ice skating rink without fastening the fence into the ground including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under the outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said perimeter fence panels the vertical supporting posts will be held rigidly in position by the freezing of the ice surrounding them which is a part of the entire ice slab.
Claim 6
Independent Claim
135 words
A method of constructing a rigid, vertical-standing, perimeter fence around an ice skating rink without fastening the fence into the ground including the steps of A. securing perimeter fence panels to vertical supporting posts whose feet rest on the ground below the bottom edge of said fence panels, B. placing ice freezing conduits over the ground rink area and extending under the outside said fence panels, C. refrigerating said freezing conduits by conventional refrigerating means, and D. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said perimeter fence panels the vertical supporting posts will be held rigidly in position by the freezing of the ice surrounding them which is a part of the entire ice slab.
Claim 7
Dependent Claim
45 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink as claimed in claim 3 in which sand is used as a binder to strengthen the ice bond between the ice behind and the ice inside of the perimeter fence.
Claim 8
Dependent Claim
75 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink as claimed in claim 3 in which a water proof liner is spread over the ground under the entire rink and the edge of the liner raised and attached to part of said supporting posts spaced behind said perimeter fence panels whereby said liner will hold water in a shallow pool to aid in the freezing of said ice slab.
Claim 9
Dependent Claim
36 words
A method of constructing rigid, vertical standing, perimeter fence around an ice skating rink as claimed in claim 5 in which said ice freezing conduits together with the antifreeze liquid inside them are lighter than water.
Claim 10
Dependent Claim
38 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink as claimed in claim 3 in which the ice outside the perimeter fence is enclosed in a box attached to said supporting posts.
Claim 11
Dependent Claim
37 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink as claimed in claim 7 in which the box which encloses the ice outside the perimeter fence also encloses the header pipes.
Claim 12
Independent Claim
223 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink without embedding support members for the fence into the ground including the steps of A. positioning supporting posts at intervals around the perimeter of the rink on relatively flat ground, said posts having a horizontal ground member substantially at right angles to the rink perimeter, a vertical member spaced above, separated from and rising over the middle portion of said horizontal ground member, and connecting members between said ground member and vertical member to hold said vertical member in position by attachment near the outer end of said ground member, B. attaching rigid fence panels to said vertical members leaving a space between the lower edge of said panels and the ground or said ground members, C. placing ice freezing conduits over the ground rink area and extending under said fence panels to a position outside of said fence panels, D. refrigerating said freezing conduits by conventional refrigerating means, and E. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said fence panels and supporting posts will be held rigidly in position by the freezing of the ice surrounding them which is a part of the entire ice rink slab.
Claim 13
Independent Claim
223 words
A method of constructing a rigid, vertical standing, perimeter fence around an ice skating rink without embedding support members for the fence into the ground including the steps of A. positioning supporting posts at intervals around the perimeter of the rink on relatively flat ground, said posts having a horizontal ground member substantially at right angles to the rink perimeter, a vertical member spaced above, separated from and rising over the middle portion of said horizontal ground member, and connecting members between said ground member and vertical member to hold said vertical member in position by attachment near the outer end of said ground member, B. attaching rigid fence panels to said vertical members leaving a space between the lower edge of said panels and the ground or said ground members, C. placing ice freezing conduits over the ground rink area and extending under said fence panels to a position outside of said fence panels, D. refrigerating said freezing conduits by conventional refrigerating means, and E. covering said freezing conduits with water and freezing an ice slab over the rink area and behind and above the lower edge of said fence panels whereby said fence panels and supporting posts will be held rigidly in position by the freezing of the ice surrounding them which is a part of the entire ice rink slab.
Claim 14
Dependent Claim
45 words
A method of constructing a rigid vertical standing, perimeter fence around an ice skating rink as claimed in claim 9 in which sand is used as a binder to strengthen the ice bond between the ice behind and the ice inside of the perimeter fence.
Claim 15
Dependent Claim
75 words
A method of constructing a rigid vertical standing, perimeter fence around an ice skating rink as claimed in claim 9 in which a water proof membrane is spread over the ground under the entire rink and the edge of the membrane raised and attached to part of said supporting posts spaced behind said perimeter fence panels whereby said membrane will hold water in a shallow pool to aid in the freezing of said ice slab.
Claim 16
Dependent Claim
37 words
A method of constructing a rigid vertical standing, perimeter fence around an ice skating rink as claimed in claim 11 in which said ice freezing conduits together with the antifreeze solution inside them are lighter than water.
Claim 17
Dependent Claim
38 words
A method of constructing a rigid vertical standing, perimeter fence around an ice skating rink as claimed in claim 9 in which the ice outside the perimeter fence is enclosed in a box attached to said supporting posts.
Claim 18
Dependent Claim
37 words
A method of constructing a rigid vertical standing, perimeter fence around an ice skating rink as claimed in claim 13 in which the box which encloses the ice outside the perimeter fence also encloses the header pipes.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |