Apparatus for tensioning and fusing strips of thermoplastic material
US3984278A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1975 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Jun 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1348
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an improved apparatus for tensioning and fusing together strips of plastics material, having a pair of clamping members mounted on a support base and between which members overlapping strip portions are inserted tensioned, and fused together by frictional heat generated upon movement of one clamping member relataive to the other; the improvement resides in that the clamping members comprise clamping jaws of which at least one is adaptd to be reciprocable at a frequency corresponding to the speed of a drive shaft and that the drive is effected via a gearing which presses said driven reciprocable clamping jaw against the strip abutting it during its movement in the tensioning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.