Pen body exhibiting opposing strain to counter thermal inward st

Details Pen body exhibiting opposing strain to counter thermal inward st Pen body exhibiting opposing strain to counter thermal inward st

1995-08-17

1998-10-20

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

058253890

ABSTRACT:
An inkjet pen is formed by a pen body, flex circuit and silicon substrate. The pen body includes a first arm and a second arm upon which the substrate rests. The flex circuit is attached to the substrate and to regions of the pen body. Contact between the substrate and the arms define fulcrum points for the arms. The first arm and second arm are forced to rotate about their respective fulcrums during thermal expansion and thermal contraction. During cooling, the rotational force counters a contractive force along the pen body region contacting the flex circuit. The countering force reduces the degree of contraction by the pen body. Without such counter-force component the pen body contracts more than the flex circuit imposing a compressive tension of the flex circuit. With such counter-force, the compressive tension is reduced or eliminated. As such compressive force was the source of buckling in prior configurations, circuit, such buckling source is eliminated.

REFERENCES:
patent: 5189787 (1993-03-01), Reed et al.
patent: 5506608 (1996-04-01), Marler et al.
"Adhesive Material And Equipment Selection For The HP DeskJet 500C/Desk Writer C Color Print Cartridge"; Douglas J. Reed and Terry M. Lambright; Aug. 1992; Hewlett-Packard Journal vol. 43, No. 4, pp. 84-86.
"Automated Assembly Of The HP DeskJet 500C/Desk Writer C Color Print Cartridge"; Lee S. Mason and Mark C. Huth; Aug. 1992; Hewlett-Packard Journal vol. 43 No. 4 pp. 77-83.

Affiliated with

Also associated with

Rating

Pen body exhibiting opposing strain to counter thermal inward st does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pen body exhibiting opposing strain to counter thermal inward st, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pen body exhibiting opposing strain to counter thermal inward st will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-249906