1985-11-26
1987-06-09
Hafer, Robert A.
Surgery
Truss
Pad
2209, 128151, A61F 1102, A61F 1100, A42B 106
Patent
active
046712658
ABSTRACT:
An earplug device includes a headband with earplugs attached to the ends thereof. The earplugs have a head portion and a shank portion, the latter with its rear end joined to the associated headband end. The shank portion has a stiffened middle section and is articulately connected on either side thereof respectively to the head portion and headband end to form a doubly articulated shank configuration. The head portion is thus given the opportunity of coacting in the best possible way with the auditory canal of an ear, and to a substantial degree independently of the attitude of the headband.
REFERENCES:
patent: 968008 (1910-08-01), Waller
patent: 997673 (1911-07-01), Heggf
patent: 2670737 (1954-03-01), Cantor
patent: 3301253 (1967-01-01), Glorig
patent: 4314553 (1982-02-01), Westerdal
patent: 4490857 (1985-01-01), Leight et al.
Bilsom AB
D'Arrigo Kathleen J.
Hafer Robert A.
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