Propulsion means actuated by weight
US4451055A · kind A · utility
Inventor
Key dates
| Filing date | Apr 11, 1978 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Apr 11, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C17/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Weight carriers, and a method of propulsion by applying weight force on the weight carrier, wherein the weight load forces extending arms to apply a force to the axles having clutched pinions which engage the racks forcing the wheels secured to the axles to rotate in one direction. When the weight is unloaded or lifted, the upper frame carrying the weight is then extended back to the elevated position permitting the oscillation cycle to continue as the weight force is applied and relative to the purpose desired. When used as a roller skate with one of the same secured to each foot, the oscillation cycle, if so desired, may continue or stop functioning at the will of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.