Double annular ring speaker gasket

Details Double annular ring speaker gasket Double annular ring speaker gasket

1990-05-14

1992-01-14

Dwyer, James L.

Telephonic communications

Emergency or alarm communications

Responsive to sensed nonsystem condition

379419, 379428, 379437, 381150, 381158, 381188, H04M 100, H04R 2500

Patent

active

050816748

ABSTRACT:
A double annular ring gasket (202) interfaces a speaker (201) to a housing (200) in a portable radiotelephone, providing a conformal and acoustic seal between the speaker (201) and the housing (200), and compensating for dimensional tolerance between the housing (200) and the circuit board subassembly (204) on which the speaker (201) is mounted. The gasket (201) includes outer ring (205), inner ring (206) and intermediate ring (207) therebetween. The gasket (202) is inserted into a cavity (203) in the housing (200). Then, the speaker (201), as part of a printed circuit board subassembly (204), is pressed into place against the outer ring (205) of gasket (202) to form an axial seal and the inner ring (206) is deformed radially by the speaker (201) to form a conformal seal.

REFERENCES:
patent: 2404877 (1946-07-01), Horlacher
patent: 4163875 (1979-08-01), Cogan
patent: 4845760 (1989-07-01), Awakowicz et al.
patent: 4920564 (1990-04-01), Allkins
patent: 4974258 (1990-11-01), Arzounian et al.
patent: 4984268 (1991-01-01), Brown et al.
patent: 5042071 (1991-08-01), Stinauer et al.

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