Wiper actuating mechanism for an oil-pressure gauge
US5443551A · kind A · utility
Inventor
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0057
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wiper actuating mechanism for use in an oil pressure measuring gague is equipped with an additional auxiliary spring plate and a push rod guide sleeve in addition to an improved two-arm wiper and a round diaphram board which is provided with a vertical flange on the periphery thereof for confining a rubber packing in place. The two-arm wiper can assure constant contact of the wiper with two sides of a winding board on which a resistive wire is attached; and the push rod guide sleeve can retain a slidable push rod in place which is not welded to the diaphram board and to move linearly so as to precisely pivot the two-arm wiper; the auxiliary spring plate disposed right under the diaphram board is also intended to reinforce the operation of the diaphram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.