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. 02, 1982
Filed:
Jul. 18, 1980
William R Brown, Blairsville, PA (US);
FMC Corporation, Chicago, IL (US);
Abstract
A vibratory conveyor has a continuous trough that extends over one or more linear drive units. Each drive unit has an elongated base that extends longitudinally of the conveyor. The base is resiliently mounted to a fixed support. A trough support is disposed parallel to the base. A driver is arranged to move the trough support longitudinally of the conveyor and relative to the base. A plurality of leaf springs extend in an at rest position generally perpendicular to the direction of linear drive, longitudinally of the conveyor. These leaf springs interconnect the base and the trough support at longitudinally spaced locations. The base and the trough support are disposed laterally of each other in a horizontal plane. Preferably, the leaf springs are mounted for pivotal movement about axes extending laterally of the conveyor between the base and the trough support. Such movement adjusts the transverse angle of inclination between one side of the leaf spring and a vertical line. This adjustment can be made without changing the direction in which the leaf springs extend in an at rest position between the base and the trough support, and the adjustment provides a desired vibration angle for the trough. The angular difference between the transverse angles of inclination at the sides of the various leaf springs provides for rotational motion of the trough support relative to the base. This motion compensates for rotational motion of the drive unit on its fixed support due to inertia forces.