Strip chart temperature recorder with movable bi-metallic element assembly
US7317466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Oct 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K1/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One embodiment of the invention is directed to a method of creating and maintaining a calibrated bi-metallic element assembly configuration in a strip chart recorder including a housing having top and bottom portions. The method includes acts of positioning a bi-metallic element assembly on the bottom portion of the housing while the housing is in an open configuration, closing the housing, and attaching the bi-metallic element assembly to the top portion of the housing when the housing is closed. Another embodiment of the invention is directed to a strip chart recorder, including a housing comprising top and bottom portions, the top portion of the housing having a first mating feature, a bi-metallic element assembly having a second mating feature, and a strip chart positioned on the bottom portion of the housing. The first and second mating features are adapted to engage each other upon closing of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.