Claims
- 1. A backing disk for supporting the sealing surface of a wind instrument's pad assembly comprising a disk, one side of the disk having an outer flexible collar, the outer flexible collar having an upper curved lip.
- 2. A backing disk according to claim 1, wherein the upper curved lip curves inward.
- 3. A backing disk according to claim 1, wherein the upper curved lip curves outward.
- 4. The backing disk according to claim 1, wherein the disk has an inner collar, coaxial to the outer flexible collar, the inner and outer collars forming a recess therebetween.
- 5. The backing disk according to claim 4, wherein the inner collar has a blunt edge.
- 6. The backing disk according to claim 4, wherein the inner collar has a sharp edge.
- 7. The backing disk according to claim 4, wherein the inner collar has a curved edge.
- 8. The backing disk according to claim 4, wherein the inner collar is shorter that the outer flexible collar.
- 9. The backing disk according to claim 1, wherein the disk is constructed of a metal.
- 10. A backing disk according to claim 1, wherein the disk is constructed of a polymer material selected from the group consisting of polypropylene, polycarbonate, polyethylene, polyoxymethylene(acetal), and tetrafluoroethylene.
- 11. A pad for closure of a wind instrument tone hole comprising a backing disk having a first and second surface, the first surface having an outer flexible collar, the outer flexible collar having an upper curved lip; a cushion positioned against the disk's first surface, proximate the outer flexible collar; and a sealing skin, the sealing skin covering the disk's first surface, the cushion and outer flexible collar and fastened to the disk's second surface.
- 12. A pad according to claim 11, wherein the outer flexible collar has an upper lip, the upper lip curving inward.
- 13. A pad according to claim 11, wherein the disk has an inner collar, coaxial to the outer flexible collar, the inner and outer collars forming a recess therebetween.
- 14. A pad according to claim 11, wherein the cushion extends inward over the inner collar.
- 15. A pad according to claim 14, wherein the inner collar has a blunt upper edge.
- 16. A pad according to claim 14, wherein the inner collar has a sharp upper edge.
- 17. A pad according to claim 14, wherein the inner collar has a curved upper edge.
- 18. A pad according to claim 14, wherein the disk is constructed of a metal.
- 19. A pad according to claim 14, wherein the disk is constructed of a polymer material selected from the group consisting of polypropylene, polycarbonate, polyethylene, polyoxymethylene(acetal), and tetrafluoroethylene.
Parent Case Info
This application claims benefit of provisional application No. 60/054,427, filed Aug. 1, 1997.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4704939 |
Straubinger |
Nov 1987 |
|
5417135 |
Straubinger |
May 1995 |
|