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. 01, 1983
Filed:
Jul. 01, 1980
Edward D O'Brian, Anaheim, CA (US);
Other;
Abstract
A psychograph including a bottom member provided with a plurality of indicia on its upper surface and a planchette or small table movable relative to the upper surface so as to successively indicate various of the indicia can be constructed so as to produce a sound when the planchette is moved into a position to indicate a specific indicia. Such sound production is accomplished by locating a permanent magnet on the planchette or within the planchette so that it is movable to actuate a tone bar or similar member located on or within the planchette. Iron or other ferromagnetic non-permanently magnetized members or permanent magnets are located on the bottom member in association with each of the indicia so as to cause movement of the permanent magnet on the planchette.