Heat-sealing apparatus
US5501765A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Oct 4, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S412/902
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A heat-sealing apparatus includes a casing, a pair of lower and upper binding members for vertically binding a portion of a heat-fusible wrapper therebetween, a heater attached to a binding face of the lower binding member which is in turn fixed to the casing. The heater is operable to heat-fuse the portion of the wrapper. The apparatus further includes a switching mechanism for switching over the upper binding member between a binding position where the upper binding member is pressed against the binding face of the lower binding member and a releasing position where the upper binding member is retracted in an upper-rear direction away from the binding face of the lower binding member. The upper binding member is a heat-resistant elastic pressing roller rotatable about an axis extending along a length of the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.