Lightweight video cassette cartridge
US5398881A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jan 7, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08785
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lightweight, limited use video cassette cartridge that performs all of the needed functions of permanent-use video cassette cartridges, but comprises only eight parts, all made of thin gauge, recyclable synthetic resin material. The lightweight video cassette cartridge includes a top panel and a bottom panel which are mated to form the cartridge shell, a supply reel and a take-up reel rotatably mounted within the cartridge shell, a novel structure for maintaining the position of the reels within the cartridge while in use, leader tape for attaching the recorded video tape to the reels, two pieces of low coefficient Teflon tape, and a removable dust cover to protect the exposed video tape. The cartridge weighs less than 1.3 ounces when completely assembled and can be recycled without removing parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.