Helical tube recreational component
US5711744A · kind A · utility
23Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A one-piece helical tube component for use in forming spiral or helical playground units is disclosed. The helical tube component includes an interconnected series of helical tube segments each having a constant predetermined diameter and slope. Complementary male and female tube segments are provided adjacent opposite ends of the interconnected series of helical tube segments for corresponding mating engagement with complementary male and female tube segments of another similarly formed helical tube component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.