US4091704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound chamber and transducer apparatus for use with harmonica
Assignee: Individual
•
Filing: 1977-01-26
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Granted: 1978-05-30
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Expires: 1997-01-26
Abstract
Abstract An apparatus for use with a reed-type harmonica includes a sound chamber having a convex central portion and a pair of outer edge portions which are formed for engaging the harmonica metal extensions. A transducer assembly includes a microphone pick-up attached to a flange at one end of the main chamber member. A sound input director element extends from the transducer assembly into the chamber, and includes a tapered portion at the end farther from the microphone pick-up.
Inventors
- 👤 LeRoy Howard Moe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
G; G10; G10D; G10D7/00; G10D7/12; G10D7/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A sound chamber and transducer apparatus for use with a reed-type harmonica having metal plates extending respectively above and below the harmonica body, comprising: a chamber member of substantially the same length as the harmonica body, having a convex central portion and a pair of outer edge portions formed for engaging the metal plates of the harmonica, and an attaching portion at one end of the chamber member extending at substantially right angles to the chamber member; a transducer assembly, including a body portion affixed to the attaching portion of the chamber member, and a transducer element supported within the body portion; and a generally cylindrical sound input director element, having a tapered portion at one extremity open to the space between the sound chamber convex central portion and the harmonica body, and having the other end portion adjacent the transducer element, to conduct the sound vibrations from the chamber to the transducer element.
Claim 2
Dependent Claim
154 words
A sound chamber and transducer apparatus for use with a reed-type harmonica having metal plates extending respectively above and below the harmonica body, comprising: a chamber member of substantially the same length as the harmonica body, having a convex central portion and a pair of outer edge portions formed for engaging the metal plates of the harmonica, and an attaching portion at one end of the chamber member extending at substantially right angles to the chamber member; a transducer assembly, including a body portion affixed to the attaching portion of the chamber member, and a transducer element supported within the body portion; and a generally cylindrical sound input director element, having a tapered portion at one extremity open to the space between the sound chamber convex central portion and the harmonica body, and having the other end portion adjacent the transducer element, to conduct the sound vibrations from the chamber to the transducer element.
Claim 3
Dependent Claim
50 words
A sound chamber and transducer apparatus as claimed in claim 1, and further comprising a pair of conductors in a cord assembly coupled at one end to the transducer element, and a plug coupled to the other end of the cord assembly, to facilitate passing a signal to associated apparatus.
Claim 4
Dependent Claim
34 words
A sound chamber and transducer apparatus as claimed in claim 1, in which the tapered portion of the sound input director element provides an opening toward the convex central portion of the chamber member.
Claim 5
Dependent Claim
215 words
A sound chamber and pick-up apparatus for use with a reed-type harmonica having metal plates extending respectively above and below the harmonica body, with each metal plate terminating in a flange extending at right angles to the plate, comprising: a chamber member of substantially the same length as the harmonica body, having a convex central portion and a pair of outer edge portions formed to engage the flanges at the terminations of the harmonica metal plates, and a flange portion at one end of the chamber member extending at substantially right angles to the chamber member; a pick-up assembly, including a body portion affixed to the flange portion of the chamber member, and a microphone pick-up element supported within the body portion; a generally cylindrical sound input director, element, having a tapered portion at one extremity open to the space between the sound chamber convex central portion and the harmonica body, such that the tapered portion provides an opening toward the convex central portion of the chamber member, and having the other end portion adjacent the microphone pick-up; and a pair of conductors in a cord assembly coupled at one end to the microphone pick-up, and a plug coupled to the other end of the cord assembly, to facilitate passing a signal to associated apparatus.
Claim 6
Dependent Claim
215 words
A sound chamber and pick-up apparatus for use with a reed-type harmonica having metal plates extending respectively above and below the harmonica body, with each metal plate terminating in a flange extending at right angles to the plate, comprising: a chamber member of substantially the same length as the harmonica body, having a convex central portion and a pair of outer edge portions formed to engage the flanges at the terminations of the harmonica metal plates, and a flange portion at one end of the chamber member extending at substantially right angles to the chamber member; a pick-up assembly, including a body portion affixed to the flange portion of the chamber member, and a microphone pick-up element supported within the body portion; a generally cylindrical sound input director, element, having a tapered portion at one extremity open to the space between the sound chamber convex central portion and the harmonica body, such that the tapered portion provides an opening toward the convex central portion of the chamber member, and having the other end portion adjacent the microphone pick-up; and a pair of conductors in a cord assembly coupled at one end to the microphone pick-up, and a plug coupled to the other end of the cord assembly, to facilitate passing a signal to associated apparatus.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |