Pedometer stop watch
US4741001A · kind A · utility
Inventor
Key dates
| Filing date | May 2, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | May 2, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C22/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The substantial structure of this invention consists of an intensive mechanical swing device and a group of electronic circuits situated in a small-size box body. The swing device features a highly balanceable and sophisticated pendulum designed to absorb the natural swing energy of a human body during running. While the pendulum is swinging, a microswitch will turn on or off to transmit every signal to an IC where precise number of running steps is calculated. In the surface of the box body, a hanging ear is equipped so that the device can be hung on the waist. On the face of the box body is a display and four control keys are equipped to control and lay out all the designed functions of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.