Speaker box

Details Speaker box Speaker box

1988-05-18

1990-03-06

Hepperle, Stephen M.

Receptacles

Outlet or junction box type

Sectional receptacle

381 86, H04R 102

Patent

active

049058606

ABSTRACT:
A speaker box for housing a radio speaker unit and intended for mounting within a vehicle door is formed of plastic by a monobloc molding method such as blow molding thus providing a seamless speaker box that is free from air leakage. The speaker box has an irregular configuration matching a space within the vehicle door, whereby it can be firmly secured in place maintaining maximum inner volume. The speaker box further has ribs extending across flat regions on the box thus improving its rigidity against vibration caused by sound pressure and the like.

REFERENCES:
patent: 4099026 (1978-07-01), Persson et al.
patent: 4337380 (1982-06-01), Tezuka et al.
patent: 4362907 (1982-12-01), Polacsek
patent: 4541529 (1985-09-01), Hestehave et al.
patent: 4728143 (1988-03-01), Tanino et al.
patent: 4781314 (1988-11-01), Schoonover et al.
patent: 4790407 (1988-12-01), Yamamoto et al.

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