US3711619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Natural performance extended range pick-up device
Assignee: Individual
•
Filing: 1970-11-04
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Granted: 1973-01-16
•
Expires: 1990-11-04
Abstract
Abstract A pick-up device for electrical guitars and like instruments includes pick-up coil formed by first and second windings wound in parallel on the same coil bobbin one on top of the other. The impedance of first, inner winding is less than that of the second winding, a turns ratio of one to four being typical, and the resultant output characteristic of the composite coil provides high quality reproduction of both treble and bass.
Inventors
- 👤 R Jones
- 👤 W Stich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18; G10H3/181
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
62 words
In a pick-up device for a stringed electrical musical instrument for producing an electrical output in accordance with the movement of the instrument strings and including magnetic core means, the improvement comprising a coil arrangement comprising a first winding wound about said core means and a second, separate winding wound about said first winding and connected in parallel with said first winding.
Claim 2
Dependent Claim
62 words
In a pick-up device for a stringed electrical musical instrument for producing an electrical output in accordance with the movement of the instrument strings and including magnetic core means, the improvement comprising a coil arrangement comprising a first winding wound about said core means and a second, separate winding wound about said first winding and connected in parallel with said first winding.
Claim 3
Dependent Claim
24 words
A pick-up device as claimed in claim 1 wherein said second winding is wound in the same direction as the second winding is wound.
Claim 4
Dependent Claim
28 words
A pick-up device as claimed in claim 2 wherein the number of turns of said first winding is less than the number of turns of said second winding.
Claim 5
Dependent Claim
117 words
A pick-up device as claimed in claim 1 further comprising a support member for supporting said coil arrangement comprising first and second spaced, generally flat, plate-like portions and a central post-like portion located between said plate-like portions and formed integrally therewith about which said first and second windings are wound, first and second spaced permanent magnets extending longitudinally of said support member and a grounding plate secured to said second plate-like portion of said support member, said core means comprising a plurality of screw members extending transversely through said support member and outwardly thereof in the space between said and second permanent magnets, like poles of said magnets lying adjacent said screw members on opposite sides thereof.
Claim 6
Dependent Claim
33 words
A pick-up device as claimed in claim 3 wherein the ratio of the number of turns of the first winding to the number of turns of the second winding is one to four.
References Cited (Backward Citations)
US2557754A
Cited
US2911871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |