Measuring device with a test tape cassette
US4955934A · kind A · utility
3Cited by
2References
8Claims
0Family size
Inventor
Key dates
| Filing date | May 3, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | May 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/43
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A measuring device with a test tape cassette, in which sensors are placed on the tape spools comprising a hub and a spool body arranged in rotary manner with respect to the hub, which determine the angular displacement between hub and spool body in conjunction with a test circuit and display same as a measure of the torque acting on the tape spools. The hub and spool body are interconnected in per se known manner by means of a spring element. Preferably the test tape cassette has a printed circuit board as the upper cover, on which are located the sensors and the necessary electrical lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.