Other

Intercomp Company

Robert E Kroll

William P Kroll

Mark W Kroll

Kai K Kroll

Karl J Kroll

A portable weighing scale assembly which is comprised of a base structure including a double ended shear beam load cell structure. The shear beam load cell structure has top and bottom brace members and a spacer plate located at its center position and to which the load platform is mounted. The ends of the load cell structure are mounted to a support saddle and strap which are fixed to opposing base members of the base structure.

Weighing scale assembly

A double ended shear beam load cell assembly providing a structural weight bearing component for a portable, low profile weighing scale. The load cell has an elongated rectilinear beam structure with a pair of aligned and laterally opposing apertures which define internal, spacially parallel end walls adjacent the ends of the beam. Strain gauges are mounted in a predetermined orientation on the aperture end walls of the beam. Top and bottom brace plate members and a spacer plate are mounted to the central portion of the beam. The load cell beam ends are further provided with structure for mounting in a weighing scale base.

Force measurement assembly

The invention provides a sealed shear load cell assembly for direct mounting to the load transfer portion of the weighing platform of a scale assembly. The load cell assembly cooperates with the weighing platform to provide a structural load bearing component for the scale assembly. The top surface section of the beam load cell structure provides a predetermined shear segment in the beam structure. A pair of axially aligned, opposing circular apertures are provided to form stress isolation webs along the longitudinal axis of the beam structure and which have spacially parallel end walls which are oppositely and vertically centered adjacent the predetermined shear segment in the beam structure. Strain gauges are mounted to each parallel end wall of the stress isolation webs, and bearings are operative on the beam structure at predetermined locations outside each said stress isolation web. An interiorly disposed channel structure is further provided in the beam structure for housing the electrical communicative wiring of the strain gauges. The channel structure is further comprised of a centrally disposed aperture extending through the lateral sides of the beam, an aperture through each stress isolation web and a longitudinally extending channel extending from one of each pair of the opposing circular apertures to the centrally disposed aperture. A sealing material in the interiorly disposed channel structure is further provided for isolating and protecting the electrical communicative wiring from environmental interaction.

Load cell assembly

The invention provides a portable wheel scale assembly which comprises a lightweight, low profile housing structure having an interiorly disposed opening with a bottom surface. The housing structure has opposing parallel bearing surfaces therein and at least one load cell assembly with strain gauges. The load cell assembly further has opposing bearings for engaging the bearing surfaces in the housing and it is constructed and arranged to directly receive a load force at a predetermined area. A load cell retaining structure having vertically movable flexible members is provided for restraining the lateral movement of the load cell within the wheel scale housing and for placing a minimum pre-load force on the load cell. The load cell retaining structure is further constructed and arranged to have opposing rigid securement members to restrain the movement of the load cell bearings on the bearing surfaces within the scale housing. The wheel platform member of the scale assembly communicates with both the load cell assembly and the vertically movable flexible members of the load cell retaining structure and it further cooperates with the load cell assembly to form a structural component of the scale assembly.

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Plymouth, MN, United States of America

Robert E Kroll