Belt drive cartridge
US4162774A · kind A · utility
16Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1977 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Oct 17, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08778
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape cartridge of the belt drive type, wherein an elastomeric member is coupled to the drive belt to be continually deformed by the drive belt, so that hysteresis energy losses in the elastic member create drag on the drive belt. In one cartridge, the belt guide rollers, about which the belt extends, have rubber-like cores. In a second cartridge, a thick rubber-like auxiliary belt extends around the belt guide rollers so that the auxiliary belt is driven by the drive belt as it rotates the guide rollers. In a third cartridge, a rubber-like auxiliary roller presses against a belt guide roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.