Conductive warmer for foam packaging bags
US5986239A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/3415
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A conductive warmer for flexible plastic bags containing foam precursor chemicals includes a heat-conducting member of thermally conductive material having a plurality of fins which are parallel and spaced apart to define a plurality of spaced-apart bag-receiving compartments. The fins are connected to a back portion of the heat-conducting member, to which a heating element is attached in heat-exchanging relationship. Operation of the heating element conducts heat through the back portion and the fins of the heat-conducting member to the bags. The heat-conducting member is contained within a housing having an opening providing access to the open side of the compartments. The housing preferably is formed in two portions, a first portion containing the heat-conducting member and a second portion supporting the first portion, the first and second portions being pivotally interconnected to allow selective variation of the angular orientation of the first portion with respect to the second portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.