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. 17, 1981
Filed:
Aug. 08, 1977
Robert R Boldt, Taylor Ridge, IL (US);
Agridustrial Electronics, Inc., Bettendorf, IA (US);
Abstract
A monitor for detecting the relative velocity between a moving body or surface and a fixed body or surface includes a sensor having an actuator member, such as a wheel having magnetic pole pieces embedded therein and mounted for rotation proportional to the relative velocity between the two bodies or surfaces, and a pick-up member such as a coil or inductor, mounted adjacent the actuator for producing an electrical signal in response thereto. An electric circuit is connected to the pick-up member to receive the electrical signals therefrom and produce a plurality of indication signals in response thereto, including indication signals corresponding to the relative velocity being at or below one or more predetermined levels. The monitor also includes a plurality of indicators connected to the circuit and responsive to the indication signals therefrom, such as lights or audible alarms. In a preferred embodiment, the indicators also include an indicator such as a meter to provide a continuous indication of the proportion which the relative velocity bears to a desired value of the relative velocity.