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US3553336A Expired / Lapsed US ⏱️ 0.0 years remaining

Accenter touch bar for electronic musical instrument

Assignee: MUSICCO LLC
•
Filing: 1968-06-20
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Granted: 1971-01-05
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Expires: 1988-06-20
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Abstract

Abstract A touch bar is located closely adjacent the keyboard of an electronic musical instrument and forms part of a switch. The switch is connected in the instrument circuit so that when it is closed (or opened) the tonal quality of the audio output of the instrument is changed. The change may affect the intensity, pitch and/or timbre of the audio output. The touch bar is located so that it may be facilely struck by the player to produce varying musical effects.

Inventors

  • 👤 Jerome Markowitz
  • 👤 Errol R Griffith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 18:10
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H1/34

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 195 words
In an electronic musical instrument of the keyboard type comprising at least one manual keyboard, said keyboard having a bank of keys arranged in a row, said keys being connected to electrical switch means responsive to the physical operation of said keys, said switch means being connected to an electric circuit to control the energization of an audio system for an electronic signal source, electric circuit means for modifying the electronic signal for energizing said audio system whereby the tonal qualities of said audio system may be modified, and manually operable switch means for selectively controlling said electronic circuit means, said manual switch means including a base supporting an elongated push bar, said push bar being positioned adjacent said keyboard with its longitudinal axis extending generally transversely of said keys so that it may be facilely struck by a performer, resilient mounting means for said push bar so that it may be displaced relative to said base, and switch contact means responsive to the displacement of said push bar, said contact means being connected in electric circuit with said electronic circuit for modifying the electronic signal, whereby changes in said signal may be rapidly effected.
Claim 2
Dependent Claim 195 words
In an electronic musical instrument of the keyboard type comprising at least one manual keyboard, said keyboard having a bank of keys arranged in a row, said keys being connected to electrical switch means responsive to the physical operation of said keys, said switch means being connected to an electric circuit to control the energization of an audio system for an electronic signal source, electric circuit means for modifying the electronic signal for energizing said audio system whereby the tonal qualities of said audio system may be modified, and manually operable switch means for selectively controlling said electronic circuit means, said manual switch means including a base supporting an elongated push bar, said push bar being positioned adjacent said keyboard with its longitudinal axis extending generally transversely of said keys so that it may be facilely struck by a performer, resilient mounting means for said push bar so that it may be displaced relative to said base, and switch contact means responsive to the displacement of said push bar, said contact means being connected in electric circuit with said electronic circuit for modifying the electronic signal, whereby changes in said signal may be rapidly effected.
Claim 3
Dependent Claim 24 words
An electronic musical instrument in accordance with claim 1 wherein said electronic circuit means includes means for changing the amplitude of the electronic signal.
Claim 4
Dependent Claim 23 words
An electronic musical instrument in accordance with claim 1 wherein electronic circuit means includes means for modifying the timbre of the electronic signal.
Claim 5
Dependent Claim 24 words
An electronic musical instrument in accordance with claim 1 wherein said electronic circuit means includes means for modifying the pitch of the electronic signal.
Claim 6
Dependent Claim 20 words
An electronic musical instrument in accordance with claim 1 wherein said manually operable switch means is positioned above the keyboard.

References Cited (Backward Citations)

US2201232A Cited
US3247311A Cited
US3288909A Cited
US3223771A Cited
US3257494A Cited
US3227027A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-04 1974-07-06 1975-01-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-04 1978-07-06 1979-01-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-04 1982-07-06 1983-01-05 $7700.00 Window Closed / Lapsed

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