Data communications terminal for deaf and/or deaf-blind persons

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Description

FIG. 1 is a top, front, left side perspective view of a data communications terminal for deaf and/or deaf-blind persons showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is left side elevational view thereof;

FIG. 4 is a front elevational view thereof on an enlarged scale;

FIG. 5 is a top plan view thereof on an enlarged scale;

FIG. 6 is a rear elevational view thereof on an enlarged scale;

FIG. 7 is a bottom plan view thereof on an enlarged scale.

Referenced Cited
U.S. Patent Documents
D257560 November 25, 1980 Jang
D287854 January 20, 1987 Crews
D291195 August 4, 1987 Shea
D301233 May 23, 1989 Briscoe
2532228 November 1950 Hesh
2972140 February 1961 Hirsch
3230644 January 1966 Irazoqui
3659354 May 1972 Sutherland
3854131 December 1974 Vanderheiden et al.
4033053 July 5, 1977 Engler
4081068 March 28, 1978 Zapp
4194190 March 18, 1980 Bareau
4303915 December 1, 1981 D'Angelo et al.
4473356 September 25, 1984 Fernando et al.
Foreign Patent Documents
2657064 1978 DEX
2702730 1978 DEX
810470 1981 FIX
1433924 1972 GBX
1439821 1973 GBX
Other references
  • Popular Science-Mar. 1984, p. 162-Human Engineering Keyboard bottom right of page. "Dialogos--An Aid for the Deaf-Blind," The Finnish Central Association of the Visually Handicapped, Oct. 21, 1984. "Piezoelectric Braille Module," J. V. Pike-IBM Technical Disclosure Bulletin, vol. 19, No. 4, Sep. 1976.
Patent History
Patent number: D308668
Type: Grant
Filed: Jul 21, 1988
Date of Patent: Jun 19, 1990
Assignee: British Telecommunications public limited company (London)
Inventors: Robert J. Briscoe (Woodbridge), Andrew M. Claridge (New Malden)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Freda S. Nunn
Law Firm: Nixon & Vanderhye
Application Number: 7/222,238
Classifications
Current U.S. Class: D14/100