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:
Nov. 22, 1983
Filed:
Oct. 29, 1981
Daryl D Dressler, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
Circuitry controlled by a series of switch actuations per a preselected switch code provides a control signal. A plurality of flip-flop circuits are connected for series operation. A plurality of switches in excess of the number of digits in the code are available to provide an actuating signal for a flip-flop circuit. A time delay provided between successive flip-flop circuits enables a given switch to be used more than once for a switch code. Automatic resetting of the last flip-flop circuit at which the control signal is provided allows the control signal to be repeated one or more times before all of the flip-flop circuits are reset. A time delay circuit at the first flip-flop circuit provides for automatic reset of the circuitry. Each switch not connected to a flip-flop circuit as a digit of the switch code will, when actuated, reset the circuitry.