Adjustably keyed pressure gauge construction
US4413529A · kind A · utility
4Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Sep 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/1624
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure gauge having a rotatably secured Bourdon tube, and a dial plate arcuately displaceable for effecting zero calibration of the gauge includes a rotationally presettable key for registered placement within a key-slotted receptacle in which the gauge is to be utilized. Keying is provided by a simulated Y-shaped washer mounted in an annular groove on the gauge stem and arcuately secured post-calibration at a predetermined angular setting from a reference point on the gauge dial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.