Hayes Lemmerz International, Inc.

Hayes Wheels International, Inc.

Pilot Industries, Inc.

David Sullivan

Michael A Hedding

Michael C McGrath

Wayne M Groleau

Brian J Stockford

James H Beyer

Paul C Olsztyn

Charles J Armentrout

Thomas J Basinger

Carl E Strandberg

Karen G Smith

Brian D Colesa

An apparatus and method are disclosed for measuring the area density of a low density material sample. The system includes an x-ray emitter which emits x-rays in the range of 3 kilovolts to 20 kilovolts and the x-rays pass through the sample. An imaging device converts the x-rays which pass through the sample to visible light to produce a visible image corresponding to the sample and in which the visible image has an intensity which varies as a function of the area density across the sample. A camera produces an output signal representative of the intensity of the visible image across the sample while a computer processor processes the signal from the camera after digitization to produce an analysis of the area density of the sample.

X-ray imaging system for determining area density of low density samples

The present invention relates to a colony counter and classifier for bacterial specimens on a petri dish. The device includes a housing having a tray which accepts the petri dish containing the bacteria colonies. A line scan camera is mounted within the housing above the tray. Upon actuation, a linear motor transports the tray across the scanning line of vision for the line scan camera. Simultaneously, a fiber optic illumination system illuminates the petri dish from its side opposite the camera. As the tray is transported by the linear motor, the line scan camera successively obtains an optical image of the petri dish containing the bacteria colonies. Each line scan has a width equal to one pixel and the resulting optical images from the line scan camera are combined together to form an overall optical image of high resolution. That image is stored utilizing a digital computer. The computer then analyzes the stored optical image to both identify and count the bacteria colonies. Advanced software is also used to differentiate between single colonies and two or more colonies which abut against each other.

Bacteria colony counter and classifier

An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a sleep mode.

Electronic trailer brake controller with sleep mode

An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a zero adjusting circuit for a pendulum in an inertia sensor.

Electronic trailer brake controller with pendulum zero adjust

An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a remote manual control.

Electronic trailer brake controller with remote manual control

An electronic brake controller for actuating electric wheel brakes of a towed vehicle in response to actuation of the brakes of an associated towing vehicle. The brake controller includes a sensor for producing a brake control signal which is representative of the desired braking of the towed vehicle. The controller also includes a microprocessor for responsive to the brake control signal for generating an output signal for actuating the electric wheel brakes of the towed vehicle.

Growing community of inventors

Brighton, MI, United States of America

David Sullivan