Weight measuring arrangement for cooking appliance surface unit
US4476946A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1982 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Nov 3, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/27543
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A weight measuring arrangement for a cooking appliance in which a surface heating unit also functions as a scale platform. A three arm cantilever beam supports the heating unit. A set of four strain gages measures the strain of the three support arms, with one gage each being attached to each of two identical support arms and the remaining two gages being attached to the third arm, which arms are constructed such that the strain measured by each of the gages secured to the third arm is one-half that measured by each of the gages secured to the two identical arms when the ends of all three arms are equally deflected by a utensil placed on the surface unit for heating. The gages are electrically connected in a Wheatstone bridge network such that the output voltage from the bridge network is proportional to the weight of the load carried on the surface unit. This arrangement can be used to monitor the weight of the items being heated, throughout the heating period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.