Distance measuring instrument
US4265021A · kind A · utility
Inventor
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distance measuring instrument having a pair of identical, substantially planar, juxtaposed measuring members wherein each measuring member includes an elongated base and a distance measuring scale or indicator located on the base. An arm projects from an end of each base, and each arm defines a first measuring surface for making "outside" measurements and a second measuring surface for making "inside" measurements. A spring or other elastic member is attached to and extends between each arm for urging the first measuring surfaces toward each other. A handle may also project from the base of each measuring member for enabling the user to operate the instrument with one hand, leaving the other hand free to hold the object being measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.