Gaging finger for precision measuring instruments
US5351125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S33/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Spherical workpiece contact elements on a gaging finger of a linear measurement interferometer are positioned and supported by the establishment of four points of contact therewith. The spherical contact elements are located in a V-shaped groove, which defines two of the contact points, and are accessible for replacement by removal of a cap which establishes a third contact point with each spherical contact element. The fourth point of contact defines the position along the length of the V-groove of the contact elements and thus defines the degree of protrusion of the contact elements beyond the periphery of the supporting portion of the gaging finger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.