US4392408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder training device
Assignee: Individual
•
Filing: 1981-06-24
•
Granted: 1983-07-12
•
Expires: 2001-06-24
Abstract
Abstract A recorder training device comprising a recorder body having a plurality of tone holes provided with a couple of electrodes opposingly disposed around them such that the electrodes may be indicated by electric lights on the corresponding tone hole figures of a recorder pattern shown on an indicator plate, or on the electric lights on the musical scales of a music score pattern indicated on an indicator plate.
Inventors
- 👤 Manji Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:00
CPC Classifications
G; G09; G09B; G09B15/00; G09B15/06; G10; G10D; G10D7/00; G10D7/02; G10D7/03; G10D9/00; G10D9/04; Y; Y10; Y10S; Y10S200/00; Y10S200/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
218 words
A musical recorder training device comprising: a recorder body having a plurality of tone-controlling openings; a plurality of electrode pairs, the electrodes of each electrode pair being disposed on opposite sides of a respective tone-controlling opening such that closure of a tone-controlling opening with a finger tip provides an electric current path between a respective electrode pair through that finger tip, the electrodes in each pair being positively fixed relative to one another; a plurality of terminals, at least one terminal being provided for each electrode pair and at least one additional terminal; a plurality of metal conductors secured substantially along their entire lengths to said recorder body, each conductor extending between a respective terminal and one electrode in a respective electrode pair; a further metal conductor secured substantially along its entire length to said recorder body, said further conductor extending between said additional terminal and the other electrodes of said electrode pairs; a plurality of electric lamps; and circuit means connecting each of said electric lamps to a respective terminal of said plurality of terminals for selectively energizing each lamp as a function of the open and closed condition of each tone-controlling opening, respectively; wherein said tone-controlling openings are circular holes and wherein each electrode extends arcuately and substantially concentrically about a portion of respective tone-controlling openings.
Claim 2
Dependent Claim
218 words
A musical recorder training device comprising: a recorder body having a plurality of tone-controlling openings; a plurality of electrode pairs, the electrodes of each electrode pair being disposed on opposite sides of a respective tone-controlling opening such that closure of a tone-controlling opening with a finger tip provides an electric current path between a respective electrode pair through that finger tip, the electrodes in each pair being positively fixed relative to one another; a plurality of terminals, at least one terminal being provided for each electrode pair and at least one additional terminal; a plurality of metal conductors secured substantially along their entire lengths to said recorder body, each conductor extending between a respective terminal and one electrode in a respective electrode pair; a further metal conductor secured substantially along its entire length to said recorder body, said further conductor extending between said additional terminal and the other electrodes of said electrode pairs; a plurality of electric lamps; and circuit means connecting each of said electric lamps to a respective terminal of said plurality of terminals for selectively energizing each lamp as a function of the open and closed condition of each tone-controlling opening, respectively; wherein said tone-controlling openings are circular holes and wherein each electrode extends arcuately and substantially concentrically about a portion of respective tone-controlling openings.
Claim 3
Dependent Claim
111 words
The device according to claim 1 further comprising: an additional tone-controlling opening defined in said recorder body; three additional electrodes disposed in spaced circumferential relation about said additional tone-controlling opening; two further terminals; two additional metal conductors secured substantially along their entire lengths to said body, each extending between a respective one of said three additional electrodes and a respective one of said two further terminals; wherein said further metal conductor extends into contact with the one of said additional electrodes which is not connected to one of said two additional metal conductors; and wherein said circuit means includes means connecting each of said two further terminals to respective electric lamps.
Claim 4
Dependent Claim
140 words
The device according to claim 1 further comprising: first and second closely spaced additional tone-controlling openings defined in said recorder body; a first additional electrode disposed partially about said first opening; a second additional electrode disposed partially about said first opening and partially about said second opening and spaced from said first additional electrode; a third additional electrode, spaced from said first and second additional electrodes, disposed partially about said second opening; two further terminals; two additional metal conductors secured substantially along their entire lengths to said body, each extending between a respective one of said first and third electrodes and a respective one of said two further terminals; wherein said further metal conductor extends into contact with said second additional electrode; and wherein said circuit means includes means connecting each of said two further terminals to respective electric lamps.
References Cited (Backward Citations)
US2473199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |