Portable food freezer with internal helical conveyor
US4798062A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1988 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Apr 28, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2207/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A refrigeration device includes an enclosed housing and a framework in the housing supporting an endless conveyor for movement in a helical path between inlet and outlet openings formed in the housing. Items of prepared food are provided to the housing at the inlet, then frozen as they are serially conveyed toward the outlet. The conveyor support framework includes pairs of radially inward and radially outward uprights, with elongate rods arranged radially and in a helical path between pairs of the uprights. Two flexible steel bands, provided with spaced apart apertures to slidably accommodate the rods, are installed upon the rods in concentric helixes. Low friction strips are installed with the bands and support the conveyor with respect to the bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.