Bernd Lange has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: For the drawing of an optical fiber from a solid blank, the latter is conducted vertically through a furnace and, during this process, is heated to the drawing temperature at its lower end, from which the fiber is drawn out in the form of a drawing onion. The drawn fiber is then cooled down from the drawing temperature by means of a gas stream moving in the opposite direction to the drawing direction and, in this process, a rotational flow is impressed on the cooling gas stream in addition to the longitudinal flow.
Abstract: An overpressure-control valve has a valve housing formed with a front output chamber, a back intake chamber adjacent and back of the output chamber, and a valve seat lying between the chambers. A valve body can move in the housing forward toward the valve seat into a closing position on the seat and blocking flow between the chambers and backward from the valve seat and into an open position permitting flow between the chambers. This body has at least one forwardly directed face and at least one backwardly directed face exposed in the chambers. The effective surface area of the forwardly directed face is greater than that of the backwardly directed face. A spring urges the valve forward into the open position with a predetermined generally constant biasing force so that the valve body moves back against the spring into the closed position when the backwardly effective pressure on the forward face overcomes both the force of the spring and the pressure on the back face.
July 22, 1982
Date of Patent:
October 16, 1984
Dr. H. Tiefenbach GmbH & Co., Borsig GmbH
Abstract: A gas-oil drive for forward and reverse mechanical adjusting movements. Gas, which is available for every direction of movement of an adjusting drive at a pressure greater than atmospheric pressure, conveys its pressure in a pressure tank to control oil which flows to an adjusting device for carrying out a control operation. For both oppositely directed adjusting movements of the gas-oil drive, a single pressure tank for delivering control oil under pressure to the respective corresponding position of the adjusting device, and a single unpressurized container for receiving expelled, unpressurized control oil are provided. The unpressurized container is located above the level of the pressure tank, and a bore on the unpressurized container is connected with a bore on the pressure tank by means of a control oil line in which is located a check valve which closes in a direction of flow toward the unpressurized container.
November 1, 1977
Date of Patent:
March 13, 1979
Borsig Gesellschaft mit beschrankter Haftung