The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 1991
Filed:
Oct. 24, 1990
Applicant:
Inventor:
Masanori Katsuta, Iwata, JP;
Assignee:
Kabushiki Kaisha Kawai Gakki Seisakusho, Hamamatsu, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; G10C / ;
U.S. Cl.
CPC ...
200 / ; 84434 ;
Abstract
A key guide apparatus for an electronic musical instrument, having a plurality of keyboard switches, such as an electronic organ. Keyboard switches utilizing a movable contact are contained in a flexible member and stationary contacts are disposed on a switch base plate which is attached to a lower surface of a keyboard frame in a cantilevered manner. An integrally formed key guide having a plurality of key guide pieces and a retaining member is attached to the keyboard frame such that the retaining member is in contact with the switch base plate to prevent the base plate from deflecting, which would result in time delay after depression of the keys.