Rockwell International Corporation

Rockwell Collins, Inc.

Gary W Sampson

James B West

Roger D Anderson

Paul K Schroeder

Andrew J Yarne

James B Shumaker

An avionics LRU having multiple circuit cards therein which are arranged in readily accessible slots and have insertion/extraction apparatuses coupled thereto which use a rack and pinion arrangement to provide a relatively high insertion force over an increased displacement.

System for extracting circuit cards from a circuit card carriage

An avionics line replaceable unit (LRU), of the type having numerous electronic circuit cards disposed therein in a parallel fashion. The cards being securely held in place when the cover of the LRU is screwed on thereby actuating a spring which transfers force to the circuit cards.

Avionics line replaceable unit with frameless spring ramp circuit card

An improved microwave radar antenna including a plurality of linear waveguides arranged in a two dimensional array with each linear waveguide having a mounting flange along the bottom narrow edge of the waveguide for attachment to the ground plane of the antenna by the conductive epoxy. Also disclosed is a method of manufacturing an improved microwave antenna where flanged linear waveguides are milled to provide for radiator slots and then are affixed to a attentive ground plane along the flanged edge of the waveguide by a conductive epoxy.

Microwave radar antenna and method of manufacture

An improved strain sensor is disclosed utilizing a linear variable displacement transducer (LVDT) to precisely output the linear strain over a structural member. The LVDT is mounted utilizing a position apparatus having a similar coefficient of thermal expansion as the structural member, and effectively integrates the strain over the entire longitudinal dimension of the member by precisely measuring displacement under load. This assembly is readily incorporated in locomotive couplers and crane structures having a void or hollow coinciding with the neutral bending axis of the member being tested, as well as over relatively large spans, in pairs or singly, having bending moments present. A locomotive control system for increasing the strain on a locomotive coupler by monitoring the draw bar force with an associated generator speed and maximizing the draw bar force by manipulating the generator speed. A CPU interconnects the draw bar force sensor and the engine generator and makes comparisons and calculations necessary to set the generator speed in order to maximize draw bar force.

Growing community of inventors

Cedar Rapids, IA, United States of America

Gary W Sampson