US4214504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound drum
Assignee: Individual
•
Filing: 1978-04-27
•
Granted: 1980-07-29
•
Expires: 1998-04-27
Abstract
Abstract A musical instrument being, preferably, a compound drum, is provided having a plurality of distinct percussion chambers which may be contiguously incorporated into a single drum shell under a single continuous drum head, wherein this head may include a plurality of distinct surfaces.
Inventors
- 👤 Leslie A. Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/01; G10D13/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
176 words
A drum comprising: a cylindrically-shaped housing, one end thereof terminating as a truncated frustroconical-shaped end, comprising a contiguous plurality of percussion chambers whereof: a first circularly-shaped percussion chamber extends longitudinally through said housing, having an opening onto the flat portion of said truncated frustroconical end; a pair of kidney-shaped percussion chambers each extend logitudinally through said housing, oppositely positioned about the periphery of said first circularly-shaped chamber, each having an opening thereof onto the tapered portion of said truncated frustroconical end; a plurality of oblong-shaped percussion chambers extend logitudinally through said housing, each having an opening thereof grouped onto said tapered portion of said truncated frustroconical end, peripherally about said first circularly-shaped percussion chamber, and between said pair of kidney-shaped chambers; a plurality of small circularly-shaped percussion chambers extending longitudinally through said housing, each having an opening thereof grouped into said tapered portion of said truncated frustroconical end, about the periphery of said first circularly-shaped percussion chamber opposite said plurality of oblong-shaped percussion chambers; and a single drum head completely covering said housing truncated frustroconical-shaped end.
Claim 2
Dependent Claim
176 words
A drum comprising: a cylindrically-shaped housing, one end thereof terminating as a truncated frustroconical-shaped end, comprising a contiguous plurality of percussion chambers whereof: a first circularly-shaped percussion chamber extends longitudinally through said housing, having an opening onto the flat portion of said truncated frustroconical end; a pair of kidney-shaped percussion chambers each extend logitudinally through said housing, oppositely positioned about the periphery of said first circularly-shaped chamber, each having an opening thereof onto the tapered portion of said truncated frustroconical end; a plurality of oblong-shaped percussion chambers extend logitudinally through said housing, each having an opening thereof grouped onto said tapered portion of said truncated frustroconical end, peripherally about said first circularly-shaped percussion chamber, and between said pair of kidney-shaped chambers; a plurality of small circularly-shaped percussion chambers extending longitudinally through said housing, each having an opening thereof grouped into said tapered portion of said truncated frustroconical end, about the periphery of said first circularly-shaped percussion chamber opposite said plurality of oblong-shaped percussion chambers; and a single drum head completely covering said housing truncated frustroconical-shaped end.
Claim 3
Dependent Claim
49 words
A drum comprising: means for defining a continuous drum body member having at least one sound generating end thereof, said end presenting plural chambers; and a single drum head completely covering said body member defining means sound generating end, said drum head presenting a plurality of distinct face surfaces.
Claim 4
Dependent Claim
49 words
A drum comprising: means for defining a continuous drum body member having at least one sound generating end thereof, said end presenting plural chambers; and a single drum head completely covering said body member defining means sound generating end, said drum head presenting a plurality of distinct face surfaces.
Claim 5
Dependent Claim
25 words
A drum, comprising: a drum housing having a plurality of percussion chambers formed therein; and a single head completely covering one end of said chambers.
Claim 6
Dependent Claim
25 words
A drum, comprising: a drum housing having a plurality of percussion chambers formed therein; and a single head completely covering one end of said chambers.
Claim 7
Dependent Claim
14 words
The drum of claim 3 wherein said drum housing comprises a single continuous structure.
Claim 8
Dependent Claim
29 words
The drum of claim 4 wherein said head covers completely said single continuous structure, said head covered end thereof having a plurality of individual chamber head covered face surfaces.
Claim 9
Dependent Claim
23 words
The drum of claim 5 wherein said head includes a sound dampening pinch point between at least two of said plural face surfaces.
Claim 10
Dependent Claim
37 words
The drum of claim 6 wherein said percussion chambers extend contiguously, parallel to one another, through said housing, various walls of said chamber walls extending at various distances to establish said plural faced head covered end thereof.
Claim 11
Dependent Claim
29 words
The drum of claim 7 wherein said plurality of percussion chambers differ in cross sectional area and cross sectional size each of said chambers extending completely through said housing.
Claim 12
Dependent Claim
22 words
The drum of claim 8 also including a baffle plate covering the opposite end of said housing from the head covered end.
Claim 13
Dependent Claim
31 words
The drum of claim 9 wherein said baffle plate includes a hole therethrough which location coincides with the opening of at least one of said percussion chambers onto said opposite end.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |