Abstract: A method of mixing fluid samples using an electromagnetic multidirectional shaker is provided. The shaker has a first electromagnet driving a first support panel in a first direction, and a second electromagnet driving a second support panel in a second direction. The first electromagnet is affixed to a base and is operatively attached to the first support panel which is suspended from the base via one or more first spring members. The first spring members are configured to bias the first support panel to an at-rest position after it has been displaced by the first electromagnet. The second support panel is in turn supported above the first support panel by one or more second spring members. The second electromagnet is affixed to the first support panel, and is operatively attached to the second support panel. The second spring members are configured to bias the second support panel to an at-rest position after it has been displaced by the second electromagnet.

Abstract: An electromagnetic vibratory microplate shaker is disclosed of simplified design and improved mixing capability over previously known microplate shaker devices, comprising an electromagnetic drive assembly mounted within a rigid base and operatively connected to a microplate support platform. The support platform is in turn supported by a plurality of horizontally arrayed leaf springs. During operation, an electromagnet is rapidly energized and de-energized causing an armature of the drive assembly to be pulled in and released up to 7,200 times per minute, in turn imparting a vertical reciprocating vibration to the support platform and the microplates or multi-tube racks held thereon.

Abstract: An electromagnetic vibratory microplate shaker is disclosed of simplified design and improved mixing capability over previously known microplate shaker devices, comprising an electromagnetic drive assembly mounted within a rigid base and operatively connected to a microplate support tray. The support tray is in turn supported from below by a plurality of leaf springs which are tilted approximately 20° from vertical. During operation, an electromagnet is rapidly energized and de-energized causing an armature of the drive assembly to be pulled in and released up to 7,200 times per minute, in turn imparting a reciprocating vibration to the support platform and the microplates held thereon.

Abstract: A microplate cover seal applicator comprising a downwardly spring-biased roller mounted in a pivotal arm which pivots the roller into and out of operative contact with the top face of a microplate. The lower face of the microplate is seated in a well formed in a horizontally moveable platen which is supported on a table-top frame. The platen is manipulated by a rotary handle to repetitively translate the platen in a horizontal forwards and back direction. Suction cups are provided at the base of the frame for temporarily affixing the frame to a work surface, such as a table top surface.