Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1975-02-27
1977-08-16
Cooper, William C.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
181141, H04R 502
Patent
active
040427919
ABSTRACT:
A stereophonic headrest adjustably communicates with a back rest of an automobile seat, comprises a central elongated rectangular shaped portion and a pair of side wing portions, wherein the side wing portions hingably communicate with the ends of the central portion. A speaker unit having a volume control knob is contained in each wing portion. The side wing portions can be angled at a plurality of different obtuse angles relative to the central portion allowing maximization of the stereophonic sounds as directed onto the ears of the user.
REFERENCES:
patent: 2464435 (1949-03-01), Conradt
patent: 2501993 (1950-03-01), Conradt
patent: 2908766 (1959-10-01), Taylor
patent: 3512605 (1970-05-01), McCorkle
Cooper William C.
Wiseman Murriel L.
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