Moog Gmbh

Litton Systems, Inc.

David P Cardamone

Carl Deirmengian

Brian Alfred Williams

Albert C Paulovitz

Eugene F Keohane

Robert J Malloy

Robert L Muir

Carl R Deirmengian

Gregory M Harnsberger

Benjamin W Kinnaman

Brian J Williams

Inderjit Singh

John Christian Layer

Daniel J Halloran

Mark Santacesaria

Frank Bell

Jonathan Roberts

A linear actuator for pumping comprising a stator having an inner opening, a shaft having a plurality of permanent magnets spaced linearly in the axial direction, the shaft disposed in the stator opening and configured to reciprocate linearly in the axial direction relative to the stator, the stator comprising a first stator assembly having a plurality of pole sections spaced linearly in the axial direction and a plurality of coils disposed therebetween, a second stator assembly having a plurality of pole sections spaced linearly in the axial direction and a plurality of coils disposed therebetween, a bearing assembly positioned axially between the first stator assembly and the second stator assembly, and the bearing assembly having a width that is a function of the spacing of the plurality of pole sections of the first stator assembly and the second assembly and the spacing of the plurality of permanent magnets of the shaft.

Linear motor for pumping

A linear motor () comprising a stator () having an opening (), a mover () disposed in the opening and configured and arranged to reciprocate linearly in an axial direction (x-x) relative to the stator, the stator comprising a first pole section () and a second pole section () stacked in the axial direction and forming a recess () between them for receiving annular windings, the first pole section comprising a first laminate () having a first cross-sectional geometry () and a second laminate () having a second cross-sectional geometry () different from the first cross-sectional geometry, and the first laminate and the second laminate stacked in the axial direction.

Laminated linear motor stator core

A method of assembling a shaft of a magnetic motor comprising the steps of providing a plurality of magnets (), providing a plurality of pole pieces (), stacking (S) said magnets and pole pieces to form a subassembly () having an outer surface of a first diameter, providing a precipitation hardenable stainless steel sheet material, forming said stainless steel sheet material into a tube (S), drawing said tube to form a precision tube having an inner surface of a second diameter (S), said second diameter being greater than or equal to said first diameter, heat treating said precision tube to form a tubular sleeve of a Rockwell C hardness of at least about 40 and a magnetic permeability of at least about 100 (S), and inserting said subassembly axially into said sleeve (S), thereby forming a shaft for a magnetic motor.

Linear tubular motor magnetic shaft sleeve

An emergency position indicating radio beacon ('EPIRB') includes a watertight housing with an ON-OFF switch on the outside of the housing which does not require holes through the housing wall. A floatation collar on the housing maintains the EPIRB in an upright position in the water and provides a storage cavity for a lanyard. Conductive grids on the interior of the housing either shield the EPIRB electronics from antenna radiation and form the lower half of the antenna, or couple the antenna to the water which acts as a ground plane, depending on whether the EPIRB is floating in the water or is surrounded by air.

Emergency transmitter buoy for use on marine vessels

Emergency locator transmitter

Emergency position indicating radio beacon

Growing community of inventors

Lansdale, PA, United States of America

David P Cardamone