Patent US4469004A successfully refreshed from Google Patents.
US4469004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bass drum used for training purposes
Assignee: Nippon Gakki Co Ltd
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Filing: 1982-05-12
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Granted: 1984-09-04
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Expires: 2002-05-12
Abstract
Abstract A training bass drum has a length significantly larger than those of conventional training bass drum so that it generates musical tones with sufficient noise control but attains ample bass range effect. The resultant elongated internal space is advantageously utilized for encasing other sorts of percussive musical instruments such as snare drums and tomtoms.
Inventors
- 👤 Makoto Kurosaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/01; G10D13/03; G10D13/02; G10D13/10; G10D13/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
An improved bass drum used for training purposes comprising a long, hollow cylindrical body of a relatively small diameter, a drum head coupled to one longitudinal end of said cylindrical body, a flat, transverse end closer secured to the inner surface of said cylindrical body at a position near said one longitudinal end leaving an elongated cylindrical space on the side opposite to said drum head, and a sound absorbing pad placed in a short space between said end closure and said drum head in surface contact with the inside surface of said drum head.
Claim 2
Dependent Claim
95 words
An improved bass drum used for training purposes comprising a long, hollow cylindrical body of a relatively small diameter, a drum head coupled to one longitudinal end of said cylindrical body, a flat, transverse end closer secured to the inner surface of said cylindrical body at a position near said one longitudinal end leaving an elongated cylindrical space on the side opposite to said drum head, and a sound absorbing pad placed in a short space between said end closure and said drum head in surface contact with the inside surface of said drum head.
Claim 3
Dependent Claim
29 words
An improved bass drum as claimed in claim 1 in which said bass drum further includes a detachable lid coupled to the other longitudinal end of said cylindrical body.
Claim 4
Dependent Claim
49 words
An improved bass drum set as claimed in claim 2 in which the diameter of said cylindrical body is large enough to accommodate, in said elongated cylindrical between said end closer and detachable lid, at least one percussive musical instrument to be used in combination with said bass drum.
Claim 5
Dependent Claim
180 words
An improved bass drum used for training purposes comprising a long, hollow cylindrical body of a relatively small diameter, a drum head coupled to one longitudinal end of said cylindrical body, a flat, transverse end closer secured to the inner surface of said cylindrical body at a position near said one longitudinal end leaving an elongated cylindrical space on the side opposite to said drum head, a sound absorbing pad placed in a short space between said end closer and said drum head in surface contact with the inside surface of said drum head, and an auxiliary support mechanism including a support block provided atop with a seat on which said cylindrical body is mounted, means for securing said support block to said cylindrical body and means for connecting said support block to a foot beater assembly, said support block having a channel-shaped construction which includes a flat center section, a pair of side walls extending upwards from both ends of said center section, and a pair of drum seats formed by inwardly bent top sections of said side walls.
Claim 6
Dependent Claim
180 words
An improved bass drum used for training purposes comprising a long, hollow cylindrical body of a relatively small diameter, a drum head coupled to one longitudinal end of said cylindrical body, a flat, transverse end closer secured to the inner surface of said cylindrical body at a position near said one longitudinal end leaving an elongated cylindrical space on the side opposite to said drum head, a sound absorbing pad placed in a short space between said end closer and said drum head in surface contact with the inside surface of said drum head, and an auxiliary support mechanism including a support block provided atop with a seat on which said cylindrical body is mounted, means for securing said support block to said cylindrical body and means for connecting said support block to a foot beater assembly, said support block having a channel-shaped construction which includes a flat center section, a pair of side walls extending upwards from both ends of said center section, and a pair of drum seats formed by inwardly bent top sections of said side walls.
Claim 7
Dependent Claim
35 words
An improved bass drum as claimed in claim 4 in which At least one of the bottom face of said support block and top face of said seat is covered with a vibration absorbable material.
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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |