US3733425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pick up device for stringed instrument
Assignee: Individual
•
Filing: 1971-11-08
•
Granted: 1973-05-15
•
Expires: 1991-11-08
Abstract
Abstract A piezoelectric pickup for stringed musical instruments comprising a piezoelectric element, a synthetic rubber vibration transmitting material attached to one end of the element, a support for the element at the other end thereof, and a weight attached to the vibration transmitting end of the element, the pickup being mounted in the resonance box of the instrument.
Inventors
- 👤 K Chaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:07
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18; G10H3/181; G10H3/146; Y; Y10; Y10S; Y10S84/00; Y10S84/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
In a stringed musical instrument containing strings, a body and neck, said body containing a resonance box, and one side of the resonance box being the belly of the instrument, the improvement comprising a signal transmitting piezoelectric unit mounted in said body having: a. at least one piezoelectric element attached at one end thereof to the inside of said unit by a synthetic rubber mount and having signal transmitting means; b. an elastic synthetic rubber vibration transmitting medium attached to the other end of said element and to said unit, said medium being separate from mount; and c. a weight attached to said vibration transmitting medium at said other end.
Claim 2
Dependent Claim
110 words
In a stringed musical instrument containing strings, a body and neck, said body containing a resonance box, and one side of the resonance box being the belly of the instrument, the improvement comprising a signal transmitting piezoelectric unit mounted in said body having: a. at least one piezoelectric element attached at one end thereof to the inside of said unit by a synthetic rubber mount and having signal transmitting means; b. an elastic synthetic rubber vibration transmitting medium attached to the other end of said element and to said unit, said medium being separate from mount; and c. a weight attached to said vibration transmitting medium at said other end.
Claim 3
Dependent Claim
19 words
The stringed musical instrument of claim 1 wherein said unit is mounted on the inner surface of said belly.
Claim 4
Dependent Claim
35 words
The musical instrument of claim 1 wherein said weight has a mass which is both proportional to the mass of the air within said resonance box and inversely proportional to the density of said belly.
Claim 5
Dependent Claim
30 words
The stringed instrument in accordance with claim 1 wherein said belly has a sound post mounted on the inner surface thereof and said unit is mounted on said sound post.
Claim 6
Dependent Claim
26 words
The stringed instrument of claim 2 wherein said belly has a bar mounted on the inner surface thereof and said unit is mounted on said bar.
References Cited (Backward Citations)
US2722614A
Cited
FR1061804A
Cited
US3073915A
Cited
US3084228A
Cited
US3456134A
Cited
US3538232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |