Multi-purpose telephone strain relief

Details Multi-purpose telephone strain relief Multi-purpose telephone strain relief

1993-03-26

1995-02-28

Dwyer, James L.

Telephonic communications

Terminal

Housing or housing component

379433, H04M 100

Patent

active

053944674

ABSTRACT:
A one-piece, molded subassembly with a near-field acoustic chamber and a far-field acoustic chamber on either side of a centrally disposed microphone. A slightly-flared passage through the subassembly couples the far-field acoustic chamber to an exterior port in order to provide noise cancellation. A cord passage in the subassembly is directed in three mutually orthogonal directions so that a strain on the cord is not transmitted beyond the subassembly where it initially enters the handset.

REFERENCES:
patent: 2136624 (1938-11-01), Kuhn
patent: 4178490 (1979-12-01), Boenecke
patent: 4845774 (1989-07-01), Arzounia
patent: 5144657 (1992-09-01), Depaepe
patent: 5204907 (1993-04-01), Staple et al.
patent: 5239578 (1993-08-01), Regen et al.

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