IP Library Granted Patent US 8,039,724
Granted Patent B1
US 8,039,724 · App. 12/562,370 · Granted Oct 18, 2011

Removable electronic drum head for an acoustic drum

Assignee: Alesis, L.P. a Limited Partnership of Delaware
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Quick Facts
Patent No.
US 8,039,724
App. No.
12/562,370
Granted
Oct 18, 2011
Kind
B1
Abstract

A removable electronic drum head for an acoustic drum is disclosed. The electronic drum head includes an elastic strike layer, a rigid plate centered below the elastic strike layer. A first sensor is attached to a bottom surface of the rigid plate. A structural body supports the elastic strike layer, rigid plate and first sensor. The structural body is further adapted to attach to an acoustic drum. Other optional foam layers may be included above and below the rigid plate.

Claims (26)

1. An electronic drum head, comprising:

an elastic strike layer;

a rigid plate centered below the elastic strike layer;

a first sensor attached to a bottom surface of the rigid plate; and

a structural body supporting the elastic strike layer, rigid plate and first sensor from below, the structural body having an upwardly extending sidewall configured and arranged to insert into a drum hoop and a lip extending outwardly from the sidewall configured and arranged to hook over an edge of the drum hoop.

2. The electronic drum head of claim 1 , further comprising a second sensor beneath said elastic strike layer.

3. The electronic drum head of claim 1 , further comprising a foam layer beneath said elastic strike layer.

4. The electronic drum head of claim 1 , further comprising a foam layer beneath said rigid plate.

5. The electronic drum head of claim 1 , wherein said first sensor is a piezo sensor.

6. The electronic drum head of claim 1 , wherein said first sensor is a membrane sensor.

7. The electronic drum head of claim 1 , wherein said first sensor is a force sensing resistor.

8. The electronic drum head of claim 2 , wherein said second sensor is a piezo sensor.

9. The electronic drum head of claim 2 , wherein said second sensor is a membrane sensor.

10. The electronic drum head of claim 2 , wherein said second sensor is a force sensing resistor.

11. The electronic drum head of claim 1 , wherein said elastic strike layer further includes an integrally formed raised rim.

12. The electronic drum head of claim 4 , wherein said foam layer beneath said rigid plate is a foam ring.

13. The electronic drum head of claim 1 , further comprising a surface defining an aperture therethrough a center of the structural body.

14. The electronic drum head of claim 1 , further comprising a surface defining a recessed region on a bottom of the structural body.

15. An electronic drum, comprising:

an elastic strike layer;

a rigid plate centered below the elastic strike layer;

a first sensor attached to a bottom surface of the rigid plate;

a drum hoop; and

a structural body supporting the elastic strike layer, rigid plate and first sensor from below, the structural body having an upwardly extending sidewall configured and arranged to insert into to the drum hoop and a lip extending outwardly from the sidewall configured and arranged to hook over an edge of the drum hoop.

16. The electronic drum of claim 15 , further comprising a second sensor beneath said elastic strike layer.

17. The electronic drum head of claim 15 , further comprising a foam ring beneath and supporting said rigid plate.

Assignments (8)
FOURTH AMENDMENT TO INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jan 14, 2021
From: INMUSIC BRANDS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 055311/0393 →
SECURITY INTEREST Recorded Aug 4, 2014
From: INMUSIC BRANDS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 033464/0661 →
SECURITY AGREEMENT Recorded Oct 22, 2012
From: INMUSIC BRANDS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 029164/0024 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2012
From: ALESIS, L.P., A LIMITED PARTNERSHIP OF THE STATE OF DELAWARE
To: INMUSIC BRANDS, INC., A FLORIDA CORPORATION
Reel/Frame 029083/0895 →
SECURITY AGREEMENT Recorded Nov 18, 2011
From: ALESIS, L.P.
To: BANK OF AMERICA, N.A.
Reel/Frame 027255/0472 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2011
From: NUMARK INDUSTRIES, L.P., A LIMITED PARTNERSHIP OF THE STATE OF FLORIDA
To: ALESIS, L.P., A LIMITED PARTNERSHIP OF THE STATE OF DELAWARE
Reel/Frame 026886/0690 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2010
From: NUMARK INDUSTRIES, LLC
To: NUMARK INDUSTRIES, L.P., A LIMITED PARTNERSHIP OF THE STATE OF FLORIDA
Reel/Frame 023973/0772 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2009
From: NORMAN, JAMES; SHIM, BRIAN; WISSMULLER, JAN
To: NUMARK INDUSTRIES, LLC, A RHODE ISLAND CORPORATION
Reel/Frame 023327/0817 →
Continuity (2)
Provisional Application 61098062 · Sep 18, 2008
Provisional Application 61144279 · Jan 13, 2009