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:
Aug. 29, 1989
Filed:
Sep. 08, 1987
Applicant:
Inventors:
Hajime Tanaka, Yosiki-gun, Yamaguchi, JP;
Shiro Saito, Hamamatsu-shi, Shizuoka, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10C / ;
U.S. Cl.
CPC ...
84236 ; 84239 ; 84240 ;
Abstract
An improved wippen heel arrangement for an upright piano includes: a pillar screwed into one end portion of a piano key so that the projecting length of the pillar which projects from the piano key is adjustable; a wippen heel attached to a wippen constituting one element of an action mechanism; and a wippen joint interposed between the pillar and the wippen heel for pivotal movement about a stationary shaft, in which the thrust applied to the pillar is transmitted through the wippen joint to the wippen. Accordingly, a key touch quality which may be experienced with a grand piano can be enjoyed using an upright piano.