CA1000979A - Key assembly - Google Patents

Key assembly

Info

Publication number
CA1000979A
CA1000979A CA209,760A CA209760A CA1000979A CA 1000979 A CA1000979 A CA 1000979A CA 209760 A CA209760 A CA 209760A CA 1000979 A CA1000979 A CA 1000979A
Authority
CA
Canada
Prior art keywords
key assembly
key
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA209,760A
Inventor
Robert F. Olszowka
Howard M. Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wurlitzer Co
Original Assignee
Wurlitzer Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wurlitzer Co filed Critical Wurlitzer Co
Application granted granted Critical
Publication of CA1000979A publication Critical patent/CA1000979A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/12—Keyboards; Keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/07—Electric key switch structure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Toys (AREA)
CA209,760A 1974-05-06 1974-09-23 Key assembly Expired CA1000979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00467207A US3855894A (en) 1974-05-06 1974-05-06 Key assembly

Publications (1)

Publication Number Publication Date
CA1000979A true CA1000979A (en) 1976-12-07

Family

ID=23854810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA209,760A Expired CA1000979A (en) 1974-05-06 1974-09-23 Key assembly

Country Status (6)

Country Link
US (1) US3855894A (en)
JP (1) JPS50142223A (en)
CA (1) CA1000979A (en)
DE (1) DE2453426A1 (en)
GB (1) GB1441354A (en)
IT (1) IT1021762B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941023A (en) * 1974-06-14 1976-03-02 The Wurlitzer Company Chord button assembly
US4091707A (en) * 1975-12-22 1978-05-30 Graber-Rogg, Inc. Compact chord organ
US4140039A (en) * 1976-04-12 1979-02-20 Faulkner Alfred H Hand held synthesizer
US4128035A (en) * 1976-06-25 1978-12-05 Norman Erickson Keyboard assembly
US4136270A (en) * 1977-03-24 1979-01-23 Gte Automatic Electric Laboratories Incorporated Actuator for pushbutton switch
US4205583A (en) * 1977-12-12 1980-06-03 Cbs Inc. Keyboard construction for pianos
US4248130A (en) * 1978-08-24 1981-02-03 Norlin Industries, Inc. Keyboard assembly
US4368364A (en) * 1980-12-03 1983-01-11 Load Cells Inc. Key mechanism
US4346639A (en) * 1981-07-27 1982-08-31 Ernest Vagias Thermoplastic key face for pianos or the like
US4500756A (en) * 1982-03-19 1985-02-19 Pratt-Read Corporation Keyboard switch having a deformable membrane formed of cellular urethane
US4782734A (en) * 1987-08-25 1988-11-08 Rose Erma L Keyboard keys for larger hands
JPH10171442A (en) * 1996-12-16 1998-06-26 Yamaha Corp Keyboard instrument
US6087576A (en) * 1997-02-24 2000-07-11 Yamaha Corporation Electronic musical keyboard apparatus resistant to yawing forces and rolling forces
JP3137038B2 (en) * 1997-06-06 2001-02-19 ヤマハ株式会社 Keyboard device
JP2008003210A (en) * 2006-06-21 2008-01-10 Yamaha Corp Keyboard device of electronic keyboard musical instrument

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA737203A (en) * 1966-06-28 The Wurlitzer Company Sharp key cap
US3205754A (en) * 1965-09-14 Becwar keys
US2117002A (en) * 1936-07-18 1938-05-10 Hammond Laurens Keyboard for musical instruments
US2832251A (en) * 1953-07-07 1958-04-29 Wurlitzer Co Organ key
US3110211A (en) * 1959-08-06 1963-11-12 Baldwin Piano Co Electronic organ construction
US3120146A (en) * 1961-06-02 1964-02-04 Pratt Read & Co Inc Musical instrument key
US3306152A (en) * 1964-06-17 1967-02-28 Paul A Klann Keyboard
JPS4521326Y1 (en) * 1966-02-23 1970-08-25
US3740448A (en) * 1971-04-12 1973-06-19 Wurlitzer Co Organ drop-in key assembly
US3715950A (en) * 1971-09-22 1973-02-13 Pratt Read Corp Key construction for keyboard instruments
US3797357A (en) * 1972-09-20 1974-03-19 Wurlitzer Co Electronic musical instrument mechanical construction

Also Published As

Publication number Publication date
US3855894A (en) 1974-12-24
IT1021762B (en) 1978-02-20
DE2453426A1 (en) 1975-11-20
JPS50142223A (en) 1975-11-15
GB1441354A (en) 1976-06-30

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