Helical coil spring toy and a response device therefor
US6000991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Mar 26, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An amusement device for a helical coil spring toy that generates a response such as sound or light whenever the wave of the helical coil spring changes direction. The amusement device includes two end caps affixed to the two free ends of the coil spring. One of the two end caps is an active end cap which houses the mechanism for generating the response. When the helical coil spring is compressed at the active end cap end a trigger switch activates an integrated circuit thereby producing the desired response. When the wave of compressed coils travels to the passive end cap a second response is produced by a time delay circuit so that user selective alternating responses are produced each time the wave of coils travels from one end cap to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.