Patent · US Expired

Mounting structure for rotary electrical stylus device

US4178599A · kind A · utility

0Cited by
8References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 22, 1978
Grant dateDec 11, 1979
Priority date
Expiry dateMar 22, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D15/08
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

The device records images in the form of dots on electrical discharge-sensitive paper. A plurality of styli are mounted on a rotor. The paper is fed past the rotor. The paper has a coating which is eroded away by sparks between the styli and the paper. This divisional patent is directed to the provision of a support structure which supports the device with the coated side of the paper down so that when it is recorded on any debris caused by the erosion will fall away from the paper under the force of gravity and will not accumulate near the styli.

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