Company Filing History:
Years Active: 1993-1997
Title: Innovations by Leslie R. Dahl
Introduction
Leslie R. Dahl is a prominent inventor based in Livermore, California. She has made significant contributions to the field of electromagnetic pumps, holding a total of five patents. Her innovative designs focus on enhancing the efficiency and reliability of electromagnetic induction pumps.
Latest Patents
One of her latest patents is for a double-stator electromagnetic pump featuring an alignment ring and spine. This invention includes a support structure that clamps the inner coils and lamination rings of the inner stator column, preventing damaging vibrations. The spine assembly, which consists of a base plate, center post, and ribs, serves as the structural frame for the inner stator. The stacked alignment rings provide structural integrity to the lamination rings, ensuring they are concentrically located around the central axis of the spine assembly. The alignment rings are crafted from a material with a high thermal expansion coefficient, which compensates for the lower expansion of the lamination rings. This design maintains radial clamping over a range of temperatures and operating conditions. Additionally, axial clamping is achieved through tie rods that engage both the base plate and a clamping plate, allowing for compliance in the axial clamping system to accommodate differential thermal growth.
Another notable patent by Dahl is for an electromagnetic pump stator coil. This design features a continuous conductor strip with terminals at both ends and an intermediate section in between. The strip is configured into two coil halves,