US4487411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Playground tube slide
Assignee: Miracle Recreation Equipment Co
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Filing: 1982-09-30
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Granted: 1984-12-11
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Expires: 2002-09-30
Abstract
Abstract A tube slide includes a combination of common curved and straight tube bed sections connected through a radially extending flange where the lowermost tube section is curved and may be rotated in either direction to accommodate space limitations. A contoured apron open from above having a protective handrail and a radially extending arcuate end flange on its upper end adjustably connected to the end flange of the lower end of the slide provides for safe exiting from the slide.
Inventors
- 👤 Paul W. Ahrens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:52
CPC Classifications
A; A63; A63G; A63G21/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A playground tube slide comprising, an elevated deck, an elongated slide bed extending from said deck to the ground, said slide bed including a plurality of straight and curved tube sections connected together in end-to-end relation, said curved tube sections including identical top and bottom half sections interconnected by fastening means engaging laterally outwardly extending flanges along the length of said top and bottom half sections, each tube section further comprising laterally outwardly extending arcuate end flanges on the opposite ends of said top and bottom half sections, the end flanges on one end of said curved tube section being connected to the end flanges on one end of another tube section so that said curved tube section turns in one lateral direction, said curved tube section being adapted to be turned in the opposite lateral direction by rotating said curved tube section relative to said another tube section with the top and bottom half sections becoming the bottom and top half sections respectively, and a contoured apron open from above having protective handrail means and a laterally outwardly extending arcuate end flange on its upper end adjustably connected to the end flange of the lower end of said slide bed for safe exiting from said slide.
Claim 2
Dependent Claim
207 words
A playground tube slide comprising, an elevated deck, an elongated slide bed extending from said deck to the ground, said slide bed including a plurality of straight and curved tube sections connected together in end-to-end relation, said curved tube sections including identical top and bottom half sections interconnected by fastening means engaging laterally outwardly extending flanges along the length of said top and bottom half sections, each tube section further comprising laterally outwardly extending arcuate end flanges on the opposite ends of said top and bottom half sections, the end flanges on one end of said curved tube section being connected to the end flanges on one end of another tube section so that said curved tube section turns in one lateral direction, said curved tube section being adapted to be turned in the opposite lateral direction by rotating said curved tube section relative to said another tube section with the top and bottom half sections becoming the bottom and top half sections respectively, and a contoured apron open from above having protective handrail means and a laterally outwardly extending arcuate end flange on its upper end adjustably connected to the end flange of the lower end of said slide bed for safe exiting from said slide.
Claim 3
Dependent Claim
193 words
A playground tube slide comprising, an elevated deck, an elongated slide bed extending from said deck to the ground, said slide bed including a plurality of tube sections connected together in end-to-end relation, said tube sections including identical top and bottom sides, each tube section including laterally outwardly extending arcuate end flanges on the opposite ends thereof, at least one of said tube sections having a curved center axis, thereby providing a curved tube section, and the end flange on one end of said curved tube section being connected to the end flange on one end of another tube section so that said curved tube section turns in one lateral direction, said curved tube section being adapted to be turned in the opposite lateral direction by rotating said curved tube section relative to said another tube section with the top and bottom sides becoming the bottom and top sides respectively, and a contoured apron open from above having protective handrail means and a laterally outwardly extending arcuate end flange on its upper end adjustably connected to the end flange of the lower end of said slide bed for safe exiting from said slide.
Claim 4
Dependent Claim
193 words
A playground tube slide comprising, an elevated deck, an elongated slide bed extending from said deck to the ground, said slide bed including a plurality of tube sections connected together in end-to-end relation, said tube sections including identical top and bottom sides, each tube section including laterally outwardly extending arcuate end flanges on the opposite ends thereof, at least one of said tube sections having a curved center axis, thereby providing a curved tube section, and the end flange on one end of said curved tube section being connected to the end flange on one end of another tube section so that said curved tube section turns in one lateral direction, said curved tube section being adapted to be turned in the opposite lateral direction by rotating said curved tube section relative to said another tube section with the top and bottom sides becoming the bottom and top sides respectively, and a contoured apron open from above having protective handrail means and a laterally outwardly extending arcuate end flange on its upper end adjustably connected to the end flange of the lower end of said slide bed for safe exiting from said slide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |