Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1986-01-27
1987-05-12
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
235145R, 340365R, 340365F, 400472, 400477, H01H 1370
Patent
active
RE0324191
ABSTRACT:
A moldable, impulse operation synthetic resin keyboard, and a method of fabricating the same, are provided wherein the keyboard achieves essentially standard, tactile feed and feedback, mechanical N-key rollover protection and precise, reliable output. The keyboard includes a synthetic resin base plate having a plurality of elongated, cantilever mounted flippers, along with a plurality of elongated, laterally spaced, inwardly and opposedly extending, pivotal, key-supporting arms. Upon depression of a key, the associated flipper is deformed until a release point is reached, whereupon the flipper is disengaged, allowing the flipper to quickly return to its rest position. A keyboard output is developed as the flipper, during overtravel thereof past its rest position, strikes a signal-generating assembly.
REFERENCES:
patent: 232692 (1880-09-01), Da Costa
patent: 259825 (1882-06-01), Davis
patent: 1882106 (1932-10-01), Wise
patent: 1953066 (1934-04-01), Griffith
patent: 2262777 (1941-11-01), Roper
patent: 2320774 (1943-06-01), Flynt
patent: 2408754 (1946-10-01), Bush
patent: 2641753 (1953-06-01), Oliwa
patent: 2684418 (1954-07-01), Koch
patent: 2891649 (1959-06-01), Peterson
patent: 2909092 (1959-10-01), De Armond et al.
patent: 2978086 (1961-04-01), Hickerson
patent: 3017463 (1962-01-01), Dinsmore et al.
patent: 3018332 (1962-01-01), Johnson et al.
patent: 3032163 (1962-05-01), Flieg
patent: 3104388 (1963-09-01), Balenger
patent: 3107771 (1963-10-01), Debus
patent: 3120584 (1964-02-01), Grunfelder et al.
patent: 3133170 (1964-05-01), Nanninga
patent: 3189153 (1965-06-01), Barnard et al.
patent: 3191740 (1965-06-01), Smusz et al.
patent: 3233715 (1966-02-01), Flieg
patent: 3234331 (1966-02-01), Holstein et al.
patent: 3241648 (1966-03-01), Stenudd
patent: 3290439 (1966-12-01), Willcox et al.
patent: 3294927 (1966-12-01), Hill
patent: 3337076 (1967-08-01), Ast
patent: 3353038 (1967-11-01), Mason et al.
patent: 3369643 (1968-02-01), Avgerinos et al.
patent: 3472974 (1969-10-01), McGough
patent: 3579047 (1971-05-01), Sturm et al.
patent: 3600528 (1971-08-01), Leposavic
patent: 3603756 (1971-09-01), Carpentier et al.
patent: 3603983 (1971-09-01), Mitchell
patent: 3617627 (1971-11-01), McLean
patent: 3627935 (1971-12-01), Spievak
patent: 3632937 (1972-01-01), Nanninga
patent: 3700087 (1972-10-01), Ahrns
patent: 3707609 (1972-12-01), Dapot et al.
patent: 3717235 (1973-02-01), Dannatt
patent: 3723673 (1973-03-01), Clary et al.
patent: 3725908 (1973-04-01), Brisebarre et al.
patent: 3731014 (1973-05-01), Brady
patent: 3746802 (1973-07-01), Sandi et al.
patent: 3750150 (1973-07-01), Cramer et al.
patent: 3800104 (1974-03-01), Lien et al.
patent: 3811024 (1974-05-01), Sevigny
patent: 3818485 (1974-06-01), Harrison et al.
patent: 3829646 (1974-08-01), Lorteije et al.
patent: 3899648 (1975-08-01), Murata
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 3916135 (1975-10-01), Holden et al.
patent: 3941953 (1976-03-01), Misson et al.
patent: 3947390 (1976-03-01), Johnson
patent: 3971902 (1976-07-01), Wulf et al.
patent: 3978297 (1976-08-01), Lynn et al.
patent: 3982081 (1976-09-01), Demler, Jr.
patent: 3995126 (1976-11-01), Larson
patent: 4066860 (1978-01-01), Kawasaki
patent: 4258356 (1981-03-01), Jalbert
N. K. Perkins, et al., "Molded Spring Keyboard", IBM Technical Disclosure Bulletin, vol. 23, No. 10, pp. 4548-4549, 1981, New York.
Popular Science; Free, John; "Electronic Typewriter Has Ultrasonic Keyboard"; Mar., 1981; p. 75.
IBM Technical Disclosure Bulletin; Lynott, J. J.; "Photo Keyboard"; vol. 3, No. 11, Apr. 1961, p. 44.
IBM Technical Disclosure Bulletin; Taris, J. A.; "Keyboard"; vol. 8, No. 8, Jan. 1966, p. 1064.
Electrical Design News (EDN); "Reliable and Flexible Keyboards Feature Optical Input Detection"; Apr. 5, 1980, p. 146.
Electrical Design News (EDN); Larson, Willis; "Effective Membrane Switches Need More Than Good Looks"; Jan. 20, 1980, p. 147.
HI-TEK Keyboards catalog; 4 pages.
SABRECOIL.RTM. Keyboard catalog; Mechanical Enterprises, Inc., 8 pages.
Reprint from Dupont Magazine, vol. 73, No. 6; Nov.-Dec. 1979 issue; Chromerics, Inc.; "Keyboards by the Mile", 8 pages.
K-B Denver Inc., Tactile Switch Keyboard catalog, Oct. 1979, 7 pages.
STACKPOLE Keyswitches, Keyboards and Arrays (Preliminary Data Sheet), 9-1979, 3 pages.
TEC, Inc.; Your Complete Source for Keyboards; 9-1979; 5 pages.
Product Index & Directory, eem/1977, pp. 224, 1480, 2671, 3999, 4000, 4065, 4082, 4083, 4154, 4155, 4158, 4184, 4227 and 4310.
Engineering Research Applications, Inc.
Scott J. R.
LandOfFree
Molded keyboard and method of fabricating same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Molded keyboard and method of fabricating same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molded keyboard and method of fabricating same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1792013