Heat sensitive film shrinking machine
US3978874A · kind A · utility
Inventors
Key dates
| Filing date | Jun 23, 1975 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Jun 23, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B53/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A machine employing heated water as the medium for shrinking heat sensitive film wrapping on food products and the like, wherein the machine provides a hot water distribution and recirculation system incorporating a variable speed propeller pump operable to provide a combination of droplet type hot water sprinkling and cascaded hot water drenching in order to quickly and efficiently accomplish the close encasement shrinking of the heat sensitive film wrapping upon food product items conveyably transported through the shrinking chamber of the machine, thereby precluding thermal degradation of the food products with a consequent discoloring thereof when the same are otherwise exposed to elevated temperatures during the film shrinking operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.