James D Bright

US Patent:

53724259, Dec 13, 1994

Filed:

Sep 28, 1993

Appl. No.:

8/128364

Inventors:

Myron Tannenbaum - Cranbury NJ
Alan L. Husson - Long Valley NJ
Michael A. Gut - Jackson NJ
James Bright - East Brunswick NJ

Assignee:

New Brunswick Scientific Co., Inc. - Edison NJ

International Classification:

B01F 1100

US Classification:

366208

Abstract:

A shaker apparatus having a platform for carrying a load, a supporting base disposed beneath said platform, drive means carried by the base and operatively connected with the platform to provide horizontal shaking of the platform in an orbital motion with respect to the base, eccentric idler devices connecting the base to the platform for maintaining the platform in a substantially planar orbit substantially parallel to the base during the horizontal shaking of the platform and to eliminate backlash, and alignment elements associated with the eccentric idler devices to prevent the transmission of rigid, non-yielding force loadings between the platform and the base through one of the eccentric idler devices when the force loadings are generated at another of the eccentric idler devices or by the drive means. A second embodiment includes alignment and support structure to prevent transmission of rigid, non-yielding force loadings and to support the platform.