Patent · US Expired

Apparatus for measuring the center-to-center distance between point wires of print solenoids

US4894614A · kind A · utility

0Cited by
9References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 9, 1989
Grant dateJan 16, 1990
Priority date—
Expiry dateMar 9, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B7/14
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A center-to-center distance measuring device for measuring the exact spacing between print solenoids. The devie uses a test block having a top surface and a bottom surface which are parallel. The top surface has first and second bevel surfaces which are parallel to each other, extend from the top surface towards the bottom surface and are spaced apart at a predetermined distance. The print solenoids are positioned perpendicularly to the top surface of the test block such that the print wires of the print solenoids impact against the test block when energized. The displacement of the print wires from the solenoids is used to determine the center-to-center spacing as the print wires impact against the bevel surfaces as the test block is moved.

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