US4732070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic bass drum with integral supports
Assignee: NIPPON SAKKI SEIZO KK
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Filing: 1986-10-09
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Granted: 1988-03-22
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Expires: 2006-10-09
Abstract
Abstract An electronic bass drum is mainly constructed by two front legs which stand substantially vertically and are parallel to each other, two rear legs whose one ends are connected to the front legs and whose other ends extend obliquely downward, a pad whose back surface is fixed to the front legs and whose front surface is striken by a player and a pickup which is attached to the back surface. The pickup detects a vibration of the pad caused by the player's strike and outputs a detection signal representing electrically the vibration. Drum sound is realized by driving a sound source such as a PCM sound source, a FM sound source in response to the detection signal.
Inventors
- 👤 Toshinori Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:17
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/146; G10H2230/00; G10H2230/045; G10H2230/251; G10H2230/275; G10H2230/291; Y; Y10; Y10S; Y10S84/00; Y10S84/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
153 words
An electronic bass drum comprising: supporting means for supporting said drum including a substantially vertical front supporter and a rear supporter having one end connected to said front supporter and another end extending obliquely downward; pad means for producing a mechanical vibration, a back surface of which is attached to said front supporter and a front surface of which is to be struck by a player, said front supporter extending downward further than a lower edge of said pad means; detecting means attached to said back surface of said pad means for detecting a mechanical vibration caused by a player's strike of said front surface of said pad means and for outputting a detection signal electrically representing said mechanical vibration; and an instrument housing attached to said supporting means that encloses at least a part of said supporting means and said pad means except for at least a part of said front surface.
Claim 2
Dependent Claim
153 words
An electronic bass drum comprising: supporting means for supporting said drum including a substantially vertical front supporter and a rear supporter having one end connected to said front supporter and another end extending obliquely downward; pad means for producing a mechanical vibration, a back surface of which is attached to said front supporter and a front surface of which is to be struck by a player, said front supporter extending downward further than a lower edge of said pad means; detecting means attached to said back surface of said pad means for detecting a mechanical vibration caused by a player's strike of said front surface of said pad means and for outputting a detection signal electrically representing said mechanical vibration; and an instrument housing attached to said supporting means that encloses at least a part of said supporting means and said pad means except for at least a part of said front surface.
Claim 3
Dependent Claim
33 words
A drum according to claim 1, wherein said front supporter comprises two front legs which are substantially parallel to each other, and a connecting plate for connecting lower ends of said front legs.
Claim 4
Dependent Claim
14 words
A drum according to claim 2, wherein said rear supporter comprises two rear legs.
Claim 5
Dependent Claim
25 words
A drum according to claim 2, wherein said connecting plate is connected to foot pedal means for striking said front surface of said pad means.
Claim 6
Dependent Claim
27 words
A drum according to claim 2 further comprising adjusting means for adjusting a standing angle of said pad means, said adjusting means mounted on said connecting plate.
Claim 7
Dependent Claim
24 words
A drum according to claim 3, wherein said rear legs include extension means for extending each of said rear legs to a predetermined length.
Claim 8
Dependent Claim
38 words
A drum according to claim 3, wherein said supporting means further comprises a horizontal supporter for reinforcing said front supporter, said horizontal supporter being connected to said front legs near a center of each and approximately perpendicular thereto.
Claim 9
Dependent Claim
39 words
A drum according to claim 7, further comprising two connecting members each extending between said horizontal supporter and one of said front legs, one end of each of said rear legs being connected to each of said connecting members.
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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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |