Energy saving heating vessel
US4432340A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1982 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Oct 5, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J36/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Energy saving heating vessel adapted for heating by contact with bottom surface heating means, such as a hotplate, is disclosed. The described vessels typically have a heating rate 2 to 5 times faster than a conventional glass vessel while consuming about half the energy or less. The vessel includes sidewalls of a non-metal material such as a plastic, and a composite bottom. The composite bottom has a high heating surface contact area and includes a liquid-impervious innermost film of a non-metal material of a minimal thickness to minimize its resistance to heat transfer through it, bonded to and supported by an outermost layer of a rigid good thermal conductivity material preferably a graphitic material having a conductivity at least ten times higher than the sidewalls and the inner film, such outermost layer being the hot plate contacting element. The vessel can be made in a variety of shapes adapted for use in laboratory, domestic, service and industrial applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.