Stylus for recording on heat sensitive material

Details Stylus for recording on heat sensitive material Stylus for recording on heat sensitive material

1975-03-19

1976-10-19

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

Stylus feature

346 76R, 338 28, G01D 1516, G01D 1510, H01C 702

Patent

active

039874931

ABSTRACT:
A hot stylus using a mandrel of soft material having good heat conductivity and good electrical conductivity is used to carry heat to the writing end of the mandrel. That end fits in an aperture of a jewel bearing surface which rides on the heat sensitive paper. The mandrel is soldered in a groove along a thermistor having a positive temperature coefficient. The mandrel also provides one electrical connection to the thermistor. The other electrical connection is by way of a foil contact soldered to an opposite face of the thermistor. That assembly is potted and assembled on a circuit board which provides the electrical leads from the stylus body to which the foil is soldered and from the mandrel itself.

REFERENCES:
patent: 3402378 (1968-09-01), Catlin et al.
patent: 3699588 (1972-10-01), Warrington et al.
patent: 3735417 (1973-05-01), Holzhauser

Affiliated with

Also associated with

Rating

Stylus for recording on heat sensitive material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stylus for recording on heat sensitive material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stylus for recording on heat sensitive material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-107054