Gas meter temperature compensating tangents
US4040296A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1976 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Sep 1, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F3/224
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas meter temperature compensating tangent device having a tangent block to which is adjustably connected a tangent arm for journaling a crankshaft. The tangent block has a guideway formed in alignment with the axial line of the tangent arm. A plurality of nested "U" shaped bi-metal strips have one end pivotably connected to the tangent block and the other end connected to a tangent wrist which is slideably disposed in the guideway. The bi-metal strips will sense temperature changes in the gas and force the tangent wrist to slide in the guideway to increase or decrease the distance between the tangent wrist and the crankshaft. The tangent device provides improved accurate deflection due to temperature changes as a result of built-in radial rigidity of the tangent wrist relative to the tangent arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.