Telephone earpiece extension attachment

Details Telephone earpiece extension attachment Telephone earpiece extension attachment

1988-06-15

1990-02-27

Ng, Jin F.

Telephonic communications

Terminal accessory or auxiliary equipment

Attachable to terminal housing

379441, 379444, 379447, 381153, 381158, H04R 110, H04M 103

Patent

active

049052764

ABSTRACT:
The open end of a thin shell is snugly fitted over the earpiece of a standard telephone handset to secure the shell on the handset. Teeth or projections can extend inward from the sidewalls of the shell for snap-fit connection of the shell to the earpiece. The sidewalls of the shell project beyond the sound-emitting outer surface of the earpiece to an apertured outer surface of the shell against which the ear of a user can rest. The shell forms an extension attachment spacing the ear of a hearing aid wearer a distance from the earpiece sufficient to avoid generation of objectionable feedback sounds during use of the telephone.

REFERENCES:
patent: D181667 (1987-12-01), Oyler
patent: D227476 (1973-06-01), Kennedy
patent: D281688 (1985-12-01), Owens, Jr.
patent: 366994 (1887-07-01), Bradford
patent: 1615028 (1927-01-01), Morser
patent: 2236568 (1941-04-01), Edson
patent: 2540873 (1951-02-01), Florman
patent: 2544267 (1951-03-01), Konvalinka
patent: 2697761 (1954-12-01), Bodine, Jr.
patent: 2846527 (1958-08-01), Heintzelman
patent: 3231688 (1966-01-01), Ugartechea
patent: 3819879 (1974-06-01), Baechtold
patent: 4185175 (1980-01-01), Kondo et al.
Hearing Instruments, "Telephone Ear Pad", product information from Hal-Hen, Co. Inc., Jan. 1985, p. 42.
Publication titled "PhonePal.TM. It Fights Feedback!", believed to have been distributed to the public by about Mar. 1988.
Advertising circular (2 pages) titled "PhonePal.TM. Telephone Listening Device for I.T.E. Hearing Aid Users", (Technical Data and Fact Sheet).

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