US3797049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular portable skating rink
Assignee: DE SANTO DULONG WELSH US
•
Filing: 1972-11-09
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Granted: 1974-03-19
•
Expires: 1992-11-09
Abstract
Abstract A modular portable skating rink or wading pool having preformed side elements and clamping means to secure a plastic liner material in place to the sides. In the preferred embodiment the clamp is maintained in place partially by the pressure of the water or ice within the structure.
Inventors
- 👤 Santo M De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:29
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/0018; E04H4/14; E04H2004/146
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A portable skating rink comprising: a plurality of side elements of modular length positioned to form an enclosure, said side elements having upwardly sloping inner and outer walls and means for connecting the tops of said inner and outer walls together; a thin flexible liner covering the bottom of said enclosure and extending up the sides of said enclosure; and a plurality of elongated clamping members of modular length adapted to secure the edges of said liner to said side elements, said clamping members adding to the rigidity of said enclosure structure, said clamping members being configured to closely conform with a portion of said side elements in the vicinity of the top thereof, said liner being securely held between said side elements and said clamping members.
Claim 2
Dependent Claim
127 words
A portable skating rink comprising: a plurality of side elements of modular length positioned to form an enclosure, said side elements having upwardly sloping inner and outer walls and means for connecting the tops of said inner and outer walls together; a thin flexible liner covering the bottom of said enclosure and extending up the sides of said enclosure; and a plurality of elongated clamping members of modular length adapted to secure the edges of said liner to said side elements, said clamping members adding to the rigidity of said enclosure structure, said clamping members being configured to closely conform with a portion of said side elements in the vicinity of the top thereof, said liner being securely held between said side elements and said clamping members.
Claim 3
Dependent Claim
75 words
The skating rink recited in claim 1 wherein: each of said side elements is formed with a slot in the vicinity of the top thereof; each of said clamping members is formed with a generally downwardly extending portion adapted to fit within said slot; said generally downWardly extending portion of said clamping member engaging said liner adjacent the edge thereof and securing said liner to said side element by forcing said liner into said slot.
Claim 4
Dependent Claim
40 words
The skating rink recited in claim 2 wherein said side elements are formed with laterally outwardly extending flanges at the bottom of said inner and outer walls, said flanges having holes therethrough for securing said wall elements to the ground.
Claim 5
Dependent Claim
74 words
The skating rink recited in claim 2 wherein: said inner wall is formed of a bottom portion extending to a point below the top of said side element and a top portion parallel to but spaced from said bottom portion, said top portion connecting the top of said side element to said bottom portion at a point spaced from the top edge thereof, said top and bottom inner wall portions thereby forming said slot.
Claim 6
Dependent Claim
85 words
The skating rink recited in claim 4 wherein: said clamping member is formed with a flat side and a curved side spaced from and substantially parallel to said flat side, said curved side extends into and bears against the sides of said slot, said flat side extends down the side of said bottom portion of said inner wall; whereby said liner is secured to said side elements and said flat side is held against said inner wall by the water or ice within said enclosure.
Claim 7
Dependent Claim
40 words
The skating rink recited in claim 2 wherein said means for connecting together said inner and outer walls is formed with an elongated slot extending the length of said side element at the tops of said inner and outer walls.
Claim 8
Dependent Claim
74 words
The skating rink recited in claim 6 wherein: said clamping means is formed with a short side extending into said slot to secure said liner to said side element, and a longer side extending down the side of said inner wall; whereby said longer side is held against said inner wall by the water or ice within said enclosure, said clamping means further acting to reinforce said side elements and protect them from damage.
Claim 9
Dependent Claim
32 words
The skating rink recited in claim 6 wherein said clamping means has a T-shaped cross section wherein the stem thereof extends into said slot to secure said liner to said side element.
Claim 10
Dependent Claim
67 words
The skating rink recited in claim 1 wherein: said means for connecting said inner and outer walls together is a rounded member, the transition between said walls and said connecting means being an indented surface; said clamping means being formed to fit over said connecting means and into said indented transitional surface, said clamping means having a flat side extending down the side of said inner wall.
Claim 11
Dependent Claim
33 words
The skating rink recited in claim 1 wherein adjacent ones of said side elements are interconnected by said clamping members, said clamping members being mounted to overlap the joints between adjacent side elements.
Claim 12
Dependent Claim
45 words
The skating rink recited in claim 1 and further comprising: bridging clamps adapted to secure together adjacent side elements; said side elements being formed with holes therein near their ends; said bridging clamps having pins to fit within the holes in two adjacent side elements.
References Cited (Backward Citations)
US2807026A
Cited
US2996896A
Cited
US2869140A
Cited
US2886828A
Cited
US3012596A
Cited
US3142069A
Cited
US3354473A
Cited
US3639921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |