Albert L Brautigam

6469619, Oct 22, 2002

Nov 9, 2000

09/673595

William D. Mayercheck - Harrison City PA
Albert L. Brautigam - Pittsburgh PA

The United States of America as represented by the Department of Health and Human Services - Washington DC

N01N 3736

340331, 340321, 340953, 340691, 34082534, 34082544, 3405731

A light weight, self-contained, portable, intrinsically-safe warning device for providing warning to personnel of an unsafe condition is provided. This warning device is especially adapted for attachment to the roof of a mine to indicate unsupported roof conditions or other unsafe conditions. This intrinsically-safe warning device has (a) a case having side walls, a first end wall, and second end wall wherein the case has an internal cavity formed by the side walls and first and second end walls; (b) a low-voltage power supply within the case comprising one or more direct current batteries; (c) a switch in electrical contact with the low-voltage power supply to activate the module; (d) a light-emitting diode in electrical contact with the switch and the low-voltage power supply, and (e) a means to attach the module in close proximity to or in a hazard area having a potential hazard such that the light is directed towards the area from which personnel are likely to enter the hazard area, wherein the module is lightweight, portable, and intrinsically-safe; whereby, when the module is activated, the light-emitting diode emits a light to warn personnel in the area of the potential hazard and direct their attention to the potential hazard. This device is especially useful in underground mining operations in order to discourage miners from going into unsupported mine roof areas by rendering the attendant hazard more evident, directing the miners attention to an appropriate warning message on the device, and thus avoiding the hazard beyond the device.

51618575, Nov 10, 1992

Apr 29, 1991

7/692889

William D. Mayercheck - New Stanton PA
August J. Kwitowski - Clairton PA
Albert L. Brautigam - Pittsburgh PA
Brian K. Mueller - Pittsburgh PA

The United States of America, as represented by the Secretary of the
Interior - Washington DC

E21C 3524

299 30

A teleoperated mining system is provided for remotely controlling the various machines involved with thin seam mining. A thin seam continuous miner located at a mining face includes a camera mounted thereon and a slave computer for controlling the miner and the camera. A plurality of sensors for relaying information about the miner and the face to the slave computer. A slave computer controlled ventilation sub-system which removes combustible material from the mining face. A haulage sub-system removes material mined by the continuous miner from the mining face to a collection site and is also controlled by the slave computer. A base station, which controls the supply of power and water to the continuous miner, haulage system, and ventilation systems, includes cable/hose handling module for winding or unwinding cables/hoses connected to the miner, an operator control module, and a hydraulic power and air compressor module for supplying air to the miner. An operator controlled host computer housed in the operator control module is connected to the slave computer via a two wire communications line.

39863891, Oct 19, 1976

Nov 3, 1975

5/628575

John Michael Mesina - Pittsburgh PA
Robert Anthony Sylvester - Coraopolis PA
Albert Lee Brautigam - Pittsburgh PA

Jones & Laughlin Steel Corporation - Pittsburgh PA

G01N 2904

73 679

Apparatus for the ultrasonic pulse-echo inspection of moving metal strip having a defect signal gate and a backwall signal gate adjusted to provide a backwall signal gate interval of fixed width and a fixed delay between the closing of the defect signal gate and the opening of the backwall signal gate is provided with means for automatically varying the time of closing the defect signal gate in response to changes in the relative position in time of the backwall signal with respect to the backwall signal gate interval so as to keep that gate interval in coincidence with the backwall signal.