Adjustable sports ramp system
US6921339B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jun 24, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C19/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The PRO-RAMP professional adjustable ramp system of this invention comprises a lower horizontal panel, hinged to a second angularly adjustable panel by a vertical plane. Two embodiments are disclosed. In the preferred embodiment the vertical member is adjusted by concentric tubular members and locking in position by a pair of pins through aligned holes. In the alternate embodiment the inside surfaces of the two panels are notched such that there is no possibility of slippage of the vertical pane and thus of accidental collapse of the plane. A variation of alternate embodiment employs a collapsible truss support instead of the vertical plane. The second horizontal plane may be sectionalized into plurality of planes such that a user can experience different gradients in a single ramp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.