Film dispenser and cutoff
US4014229A · kind A · utility
3Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Mar 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/293
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Wrapping apparatus including a film cutoff element. The cutoff element being an internally heated rod-type heating unit having an external periphery designing a corner edge. The element is maintained at a temperature below the melting point of the plastic film to be severed by a thermostat which energizes and deenergizes the cutoff element in dependence upon the temperature of the cutoff element. A bimetal thermostat in good heat transferring relationship with the cutoff element is utilized to control the energization of the heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.