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:
Jun. 05, 1979
Filed:
Jun. 27, 1977
Richard H Peterson, Palos Park, IL (US);
Richard W Jensen, Elmhurst, IL (US);
Other;
Abstract
A stop tablet control system for an organ in which the 'on' condition of selected stops is indicated by an illuminated light-emitting diode (L.E.D.) mounted in each stop tablet. The stop tablets are pivotally supported on a tablet rail and spring-biased to assume a neutral position from which they can be momentarily moved up or down against the action of the spring. When a tablet is momentarily pushed down from the neutral position a switch is closed to actuate circuitry which turns on the associated stop and energizes the L.E.D., and when the tablet is momentarily pushed up from the neutral position the associated stop is turned 'off' and the L.E.D. extinguished. The system includes control circuitry for providing in a combination stop action mode an indication of what stops are playing.