Method of improving repetitive striking performance, jack...

Details Method of improving repetitive striking performance, jack... Method of improving repetitive striking performance, jack...

2006-10-24

2006-10-24

Paumen, Gary F. (Department: 2833)

Music

Instruments

Stringed

C084S243000, C084S174000, C084S216000, C084S253000

Reexamination Certificate

active

07126049

ABSTRACT:
A jack used in an action mechanism of a piano has substantially an L-shape, composed of a big jack portion and a small jack portion. The thickness of the small jack portion is made smaller than that of the big jack portion in a direction of key arrangement in a state of the jack being fitted in the piano. By reducing the weight of the small jack portion as above, the time required for the jack to return to a position capable of pushing up a part of a striking member can be shortened. Accordingly, more frequent repetitive striking is allowed within a predetermined period.

REFERENCES:
patent: 2495427 (1950-01-01), Shill
patent: 2844984 (1958-07-01), Dasenbrook et al.
patent: 4995291 (1991-02-01), Takahashi
patent: 5511454 (1996-04-01), Jones et al.
patent: 5911167 (1999-06-01), Jones et al.
patent: 6232537 (2001-05-01), Kimble
patent: 49-919 (1947-04-01), None
patent: 9-281959 (1997-10-01), None

Affiliated with

Also associated with

Rating

Method of improving repetitive striking performance, jack... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of improving repetitive striking performance, jack..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improving repetitive striking performance, jack... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3626035