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1. (WO1991018465) DOUBLE ANNULAR RING SPEAKER GASKET
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

Claims:

1. A gasket for acoustically sealing a speaker in a housing cavity, comprising:
a) a first ring portion having a first diameter, a first height and a first thickness;
b) a second ring portion having a second diameter, a second height, a second thickness, said second ring portion concentric to said first ring portion, said second diameter being less than said first diameter, and said second height being less than said first height; and
c) a third ring portion having third diameter. third height, and a third thickness, said third ring portion concentric to said first ring portion and interposed between said first and second ring portions, said third diameter being less than said second diameter, said third height less than said second height for producing a hollow passage between said first and second ring portions, whereby said second ring portion is at least partially deformed into the hollow passage when the speaker is inserted into and pressed against the housing cavity.

2. The gasket according to claim 1, wherein the third thickness of third ring portion is at least 0.76
millimeters.

3. The gasket according to claim 1, wherein the first thickness of the first ring is at least 1.62 millimeters.

4. The gasket according to claim 1, wherein the second thickness of the second ring is at least 0.87
millimeters.

5. A telephone device, comprising:
a) a speaker;
b) a housing having a cavity for accepting said speaker; and
c) a gasket for acoustically sealing said speaker in the cavity of said handset, said gasket further comprising:
i) a first ring portion having a first diameter, a first height and a first thickness;
ii) a second ring portion having a second diameter, a second height, a second thickness, said second ring portion concentric to said first ring portion, said second ring portion concentric to said first ring portion, and said second height being less than said first height; and
iii) a third ring portion having third diameter, third height, and a third thickness, said third ring portion concentric to said first ring portion and interposed between said first and second ring portions, said third diameter being less than said second diameter, said third height less than said second height for producing a hollow passage between said first and second ring portions, whereby said second ring portion is at least partially deformed into the hollow passage when the speaker is inserted into pressed against the housing cavity.

6. The telephone device according to claim 5, wherein the third thickness of third ring portion is at least 0.76 millimeters.

7. The telephone device according to claim 5, wherein the first thickness of the first ring is at least 1.62 millimeters.

8. The telephone device according to claim 5, wherein the second thickness of the second ring is at least 0.87 millimeters.

9. The telephone device according to claim 5, wherein said speaker is mounted on a printed circuit board.