Wall climbing toy
US9731209B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jun 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D57/024
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A wall climbing toy includes a frame body, a drive shaft, a plurality of spring-loaded release valves, a cam shaft, a drive unit, a left gear train, a shaft extension, a plurality of primary crank arms, a plurality of connecting rods, a plurality of suction cups, and a plurality of air tube units. When each of the spring-loaded release valves is displaced from a seal position to an open position, an air seal formed between a corresponding one of the suction cups and a flat surface is broken. When the drive shaft is driven concurrently with the cam shaft to rotate, the air seals formed between the suction cups and the flat surface are broken alternately so as to permit the connecting rods to be alternately pulled away from a flat surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.