Contact-free push-button key for generating an electrical signal

Details Contact-free push-button key for generating an electrical signal Contact-free push-button key for generating an electrical signal

1982-07-07

1985-03-26

Groody, James J.

Communications: electrical

Audible indication

Percussion-type sound producer

357 2, 4004792, G08C 900

Patent

active

045076510

ABSTRACT:
A contact-free push-button key for converting mechanical energy into an electrical signal has a toroidal tape core comprised of material having a low magnetic retentivity such as an amorphous metal alloy, the toroidal tape core having an electrical winding thereabout and being deformable upon actuation of a key button thereby inducing a voltage change in the associated winding as a result of the changing magnetic characteristics during deformation. The deformable toroidal core is contained in a housing covered by a slidable push-button key which deforms the core when pressed.

REFERENCES:
patent: 3735058 (1973-05-01), Berry
patent: 3767878 (1973-10-01), Sykora
patent: 3895203 (1975-07-01), Leworthy
patent: 3920943 (1975-11-01), Lapointe
patent: 4028696 (1977-06-01), Madland
patent: 4116728 (1978-09-01), Becker
patent: 4262233 (1981-04-01), Becker
patent: 4322973 (1982-04-01), Iwasaki
Luborsky et al., "Potential of Amorphous Alloys for Application in Magnetic Devices", Journal of Applied Physics, vol. 49, (1978).
Chen, "A Keyswitch Using Extraordinary Hall Effect of Amorphous RE-TM Materials", Xerox Disclosure Journal, vol. 6, No. 6, (1981).
"Sensitive Force Transducers Using a Single Amorphous Core Multivibrator Bridge", K. Mohri et al., IEEE Transactions on Magnetics, vol. MAG-15, No. 6, Nov. 1979, pp. 1806-1808.

Affiliated with

Also associated with

Rating

Contact-free push-button key for generating an electrical signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Contact-free push-button key for generating an electrical signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact-free push-button key for generating an electrical signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1296510