The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2000
Filed:
Nov. 17, 1997
Peter C Haugen, Arvilla, ND (US);
Other;
Abstract
A memory wire Braille tactile system for continuously replicating a plurality of Braille characters on a single display which is substantially less costly than conventional prior art and allows the user to maintain their level of touch sensitivity. The inventive device includes a housing having an interior portion, a securing member attached near one end of the housing within the interior portion, a first plate attached to the housing opposite of the securing member, a second plate between the first plate and the securing member, a plurality of contactor shafts slidably projecting through the plates, and a plurality of memory wires connected at one end to the securing member and connected to the contactor shafts opposite thereof. A plurality of compression springs are attached to the contactors for forcing the contactors outward from the first plate. Electrical current is selectively applied to selective memory wires thereby transforming them into an austenitic state which creates the desired Braille characters.