LEONARD ROSE
Broker in Teaticket, MA
License number
Massachusetts 92457
Issued Date
Nov 1, 1975
Expiration Date
Mar 19, 1993
Type
Broker
Address
Address
Teaticket, MA 02536
Personal information
See more information about LEONARD ROSE at radaris.comName
Address
Phone
5 Ashland St, Dartmouth, MA 02748
5 Harbor St, S Dartmouth, MA 02748
61 Hancock St, Reading, MA 01867
11 Pierceville Rd, West Wareham, MA 02576
13 Pierceville Rd, West Wareham, MA 02576
Professional information
Braille Display Reader
US Patent:
4266936, May 12, 1981
Filed:
Nov 6, 1978
Appl. No.:
5/958253
Inventors:
Leonard Rose - East Falmouth MA
Stanley E. Rose - Saugus MA
Stanley E. Rose - Saugus MA
International Classification:
G09B 2102, G06K 900
US Classification:
434114
Abstract:
A portable braille display unit which presents an entire page of braille characters in response to data stored on a storage medium, such as a tape cassette. The display unit is the size of a conventional braille page, and the display unit may be made portable and self-powered. Each braille character is displayed by a braille cell display module in which spring actuated pins are controlled by bimetallic latches. Each module includes six pins which comprise the six dots of each braille cell. To display braille characters, an electrical current is applied to resistively heat selected ones of the bimetallic latches. In response to this current the selected bimetallic latches bend and disengage from the pin, allowing a compressed spring to move the pin upward through the surface plate to display a braille dot. The spring maintains the pin in this position without requiring power from the power supply.