Title: Process and apparatus for compatible wet and dry paper signal recording

Abstract: This disclosure is concerned with adapting helical electrode-grounding electrode signal recording apparatus, normally suitable for wet paper signal recording, alternatively to operate with dry coated recording paper of the type previously recordable upon by point stylii and the like, through a combination of novel signal feeding circuits, electrode shaping, paper orientation and electrode pressure.

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Inventors: Klein, Martin (Salem, NH, US)

Application Number: 823608
Filing Date: 1977-08-11
Publication_date: 1979-01-30
Assignee: Klein Associates, Inc. (Salem, NH)
Primary Class(es): 347/164 347/169
Other Classes:
US Patent Ref:

3166752	Jan, 1965	Waterman	346/165.
3233244	Feb, 1966	Winterhalter	346/165.
3491365	Jan, 1970	Desautels	346/165.
3546707	Dec, 1970	Dixon	346/165.
3596283	Jul, 1971	Baumann	346/165.
3769629	Oct, 1973	Sambucetti	346/165.

Other Refs:
Primary Examiner: Lucas, Jay P.
Assistant Examiner:
Attorney: Rines and Rines, Shapiro and Shapiro