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, 1977
Filed:
Oct. 29, 1975
Benjamin Smilg, Dayton, OH (US);
Milton S Isaacson, Dayton, OH (US);
Vibrodyne, Inc., Dayton, OH (US);
Abstract
An elongated tub-like container is supported for vibration by a set of springs mounted on a frame, and a plurality of sets of opposing electromagnets are positioned on opposite sides of corresponding armatures connected to the container for vibrating the container. A regulator is connected to vary the electric power supplied to only one set or a portion of the electromagnets while the remaining electromagnets are either energized or not energized depending on the level of power required for vibrating the container. In the embodiment illustrated with three sets of opposing electromagnets, the center set of electromagnets is controlled by a voltage regulator, and the outer sets of electromagnets are selectively energized to provide for obtaining any desired power between zero and the maximum in three stages with a voltage regulator of minimum size.