Patent · US Active

Tape rule assembly with linear optical encoder for sensing human-readable graduations of length

US10859363B2 · kind B2 · utility

6Cited by
104References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 27, 2017
Grant dateDec 8, 2020
Priority date
Expiry dateAug 24, 2038

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B2003/1087
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A tape rule assembly includes a linear optical encoder for sensing human-readable graduations of length disposed on a surface of a tape, without requiring any other machine-readable indicia to be present on the tape. The optical encoder includes two optical sensors disposed in a sensor holder pivotably disposed in the tape rule housing and configured to be displaced relative to one another in the housing along both the “x” axis and the “z” axis, a set of intersecting “x”, “y” and “z” axes being defined relative to a tape exit in the tape rule housing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.