IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0928727
(2001-08-13)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
16 인용 특허 :
9 |
초록
▼
An improved drumhead comprising a substantially annular hoop having a generally planar upper member spaced apart from a generally planar lower member, a circumferential inner rim and a circumferential outer rim. Also provided is a film material or membrane, which is generally co-planar with the annu
An improved drumhead comprising a substantially annular hoop having a generally planar upper member spaced apart from a generally planar lower member, a circumferential inner rim and a circumferential outer rim. Also provided is a film material or membrane, which is generally co-planar with the annular hoop, for constituting a drumming surface, which extends flat across the area defined within the circumferential inner rim and the circumferential outer rim. The drumhead is adaptable for use with a large variety of percussion instruments including toms, snare drums, bass drums, tambourines, congas, bongos and many other types of ethnic and other drums. The invention can also be employed separately as a hand held drum with the flat annular hoop section of the instrument functioning as a drumshell.
대표청구항
▼
An improved drumhead comprising a substantially annular hoop having a generally planar upper member spaced apart from a generally planar lower member, a circumferential inner rim and a circumferential outer rim. Also provided is a film material or membrane, which is generally co-planar with the annu
An improved drumhead comprising a substantially annular hoop having a generally planar upper member spaced apart from a generally planar lower member, a circumferential inner rim and a circumferential outer rim. Also provided is a film material or membrane, which is generally co-planar with the annular hoop, for constituting a drumming surface, which extends flat across the area defined within the circumferential inner rim and the circumferential outer rim. The drumhead is adaptable for use with a large variety of percussion instruments including toms, snare drums, bass drums, tambourines, congas, bongos and many other types of ethnic and other drums. The invention can also be employed separately as a hand held drum with the flat annular hoop section of the instrument functioning as a drumshell. 385, Feb. 27, 1997, pp. 810-813. Wilson, J.M., et al., "Comparison of Birth Weight and Growth Characteristics of Bovine Calves Produced by Nuclear Transfer (Cloning) . . . " Animal Reproduction Science, vol. 38, Nos. 1, 2, Mar. 1995, pp. 73-83. Young, Michael, W., et al., "Production of Biopharmaceutical Proteins in the Milk of Transgenic Dairy Animals", Biopharm, Jun. 1997, pp. 34-38. Bordignon, Vilceu and Lawrence C. Smith, "Telophase Enucleation: An improved method to prepare recipient cytoplasts for use in bovine nuclear transfer", Molecular Reproduction And Development, 49:29-36, 1998. Gootwine, E. et al., "Factors affecting success of embryo collection and transfer in a transgenic goat program", Theriogenology, 48 (3): 485-499, 1997. Lewis-Williams, J. et al., "Birth of successfully identified transgenic goats using preimplantation stage embyos biopsied for fish", Theriogenology, 47 (1): 226-226, 1997.
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