Mark Lester Green

US Patent:

20020163818, Nov 7, 2002

Filed:

Mar 5, 2001

Appl. No.:

09/800052

Inventors:

Mark Green - Eden Prairie MN, US
Allen Rozman - Richardson TX, US

International Classification:

H01L029/82
H02M003/335

US Classification:

363/020000, 257/421000

Abstract:

A magnetic device, method of manufacture therefor and a power supply employing the magnetic device. In one embodiment, the magnetic device includes a metal substrate and a first dielectric layer formed over the metal substrate. The magnetic device further includes a first conductive layer formed over only a portion of the dielectric layer and a magnetic core mounted proximate the first conductive layer adapted to impart a desired magnetic property thereto.

US Patent:

59500662, Sep 7, 1999

Filed:

Jun 14, 1996

Appl. No.:

8/663800

Inventors:

Kevin L. Hanson - Bloomington MN
Mark Green - Eden Prairie MN

Assignee:

The Bergquist Company - Edina MN

International Classification:

H01B 302
H01B 346

US Classification:

428551

Abstract:

An interface material for use in forming a coating interposed along a heat dissipating path between a solid state electronic device and a heat sinking surface. The coating consists of a formulation of a thermally stable wax which is formed as a polyorganosiloxane graft polymer of octadecene and a methylsiloxane host blended with a thermally conductive viscosity stabilizer consisting of a thermally conductive particulate material such as alumina, boron nitride, among others. The graft polymer, with its molecular weight of between approximately 10,000 and 15,000 has a density of between about 0. 8 and 0. 9 with a melting point of between about 30 degrees C. and 90 degrees C.

US Patent:

55886736, Dec 31, 1996

Filed:

Feb 1, 1994

Appl. No.:

8/189936

Inventors:

Mark Green - Eden Prairie MN
Robert B. Hartline - Richfield MN

Assignee:

The Bergquist Company - Minneapolis MN

International Classification:

B60R 2120

US Classification:

280731

Abstract:

A low profile membrane switch adapted for use over an automobile steering wheel airbag assembly for actuating a horn. The low profile membrane switch is comprised of an opposing pair of flexible electrodes separated by a dielectric layer. The dielectric layer has a unique pattern defining opposing electrode contact portions. A plurality of integral outwardly-extending protrusions are screen printed on the exterior surface of each flexible electrode, one over each of the opposing contact portions. These protrusions help concentrate an applied force to bring the respective electrode contact portions together to make electrical contact with the other. The opposing contact portions are defined by the dielectric pattern, and have a high density to insure redundancy and closure of the switch when one depresses the membrane switch with one's hand, and to insure the switch does not inadvertently close when flexed. An applied force of as little as four pounds causes closure of the membrane switch, even when positioned over a resilient airbag device.