Carl J Bauer, 79Salt Lake City, UT

5007074, Apr 9, 1991

Jul 25, 1989

7/385004

Avery D. Furbee - Elmhurst IL
Carl F. Bauer - Chicago IL
John S. Ramos - Buffalo Grove IL

Picker International, Inc. - Cleveland OH

H01J 3514

378138

An x-ray tube is disclosed whose cathode cup is battery biased at a low level, approximately 30 volts DC, to inhibit "wings" on the focal spot of electrons bombarding the anode. The battery for providing bias, floats at the DC electrical potential applied to the cathode, many KV below ground potential. Geometric modifications to the filament/focusing cup arrangement are also included. The geometrical characteristics partially inhibit the dispersion of electrons, inhibiting the formation of "wings" on the x-ray focal spot, particularly at high current levels. At lower current levels, the low DC battery bias enhances the anti-dispersion effects of the geometrical characteristics to inhibit wing formation even at these lower current levels.

4501614, Feb 26, 1985

Aug 26, 1983

6/527192

Carl F. Bauer - Chicago IL
James H. Hussey - Hammond IN
Benny Langston - Barrington IL
Niranjan M. Parikh - Winnetka IL

American Can Company - Greenwich CT

C22B 2100

75257

An improved flux used for the recovery of metallic aluminum from dross in a reverberatory furnace. The flux is an alloyed mixture of sodium chloride and potassium chloride in approximately equal parts by weight which has been preheated and then cooled to form an alloyed mixture. A small amount of cryolite can be added to the liquid mixture before cooling to improve the recovery of metal obtained than when the salt and potash flux mixture is used alone.

4261746, Apr 14, 1981

Oct 30, 1979

6/089480

Benny Langston - Barrington IL
Niranjan M. Parikh - Winnetka IL
Ronald E. Beese - Barrington IL
Carl F. Bauer - Chicago IL

American Can Company - Greenwich CT

C22B 910

75257

This invention pertains to fluxes used in recovery operations for secondary aluminum. The flux herein is formulated in order to minimize the amount of chloride in the slag whereby it can be used as land fill without an adverse impact on the environment or in lieu of bauxite in the manufacture of aluminum or as source of aluminum oxide for the manufacture of aluminum or aluminum salts. The flux uses a combination of sodium chloride and aluminum chloride which form a double salt having vapor pressure sufficiently low to permit the aluminum chloride sublimation, without rapid sublimation, however, sufficiently high to permit the evaporation of chloride salts to provide low chloride slag. The improved flux also permits the heat cycle to be shortened by 10 to 20 percent thereby giving a measurable energy savings.

4451287, May 29, 1984

Sep 7, 1983

6/529672

Carl F. Bauer - Chicago IL
James H. Hussey - Hammond IL
Benny Langston - Barrington IL

American Can Company - Greenwich CT

C22B 2100

75 24

A process for the recovery of metal, particularly aluminum is disclosed whereby flux is in a ratio of less than about 0. 4 flux to inert material in the dross.

4036208, Jul 19, 1977

Dec 29, 1975

5/645119

Carl F. Bauer - Chicago IL

UOP Inc. - Des Plaines IL

F24J 302

126271

Energy absorber for a solar collector assembly comprises an array of closely spaced, parallel tube portions having very high fins which present a large area of exposure to the source of radiation. The finned portions of the absorber are positioned between layers of thin, transparent plastic sheeting. The plastic sheeting contacts most of the circumference of the fins and defines generally closed cell portions between the side walls of adjacent fins which are evacuated so as to minimize convection type heat losses.

4247325, Jan 27, 1981

Jul 30, 1979

6/061606

Ronald E. Beese - Barrington IL
Niranjan M. Parikh - Winnetka IL
Carl F. Bauer - Chicago IL

American Can Company - Greenwich CT

C22B 2100

75 97A

A technique for controlling severe chemical reactions which occur when salt containing furnace slags from secondary aluminum melting operations are brought in contact with water is provided. The technique which retards the formation and evolution of hydrogen gas resulting from the reaction of aluminum metal fines with water in the presence of chloride and the formation and evoluation of ammonia gas from the reaction of aluminum nitride with water is accomplished by controlling the pH of the water-solid slurry to be around 8. Consequently, the formation and gaseous evolution of hydrogen is controlled and the evolution of ammonia is eliminated with a concomitant elimination of explosion and fire hazards associated with the uncontrolled chemical reactions.

3940327, Feb 24, 1976

Apr 11, 1975

5/567445

Melvin H. Wagner - Bartlett IL
Sandra B. Corcoran - Bartlett IL
Carl F. Bauer - Chicago IL

Universal Oil Products Company - Des Plaines IL

G01N 2746

204195S

Measuring cell for determining oxygen concentration in a combustion engine exhaust stream utilizes a wafer or disc of stabilized ZrO. sub. 2 as a solid electrolyte. A pair of concentric metal tubes having oppositely directed flanges contact electrode surfaces on the wafer and provide rugged electrical connections thereto. A pair of tubular ceramic sleeves positioned between the metal tubes electrically insulate the metal tubes from each other, seal (with the help of high temperature ceramic fiber gaskets) the wafer from leakage of exhaust gases to the reference side of the cell and space the wafer from the outer metal housing. The ceramic sleeves also maintain high temperature sealing and contact pressure between the tube flanges and the electrodes by virtue of the fact that they have a greater longitudinal length subject to temperature expansion than does the metal housing, thus making up for the fact that their temperature expansion coefficient per unit of length is lower.

4040929, Aug 9, 1977

Sep 15, 1975

5/613657

Carl F. Bauer - Chicago IL
Lawrence B. Welsh - Evanston IL
Karl J. Youtsey - Decatur AL
Frank R. Szofran - Des Plaines IL

Universal Oil Products Company - Des Plaines IL

G01N 2746
G01N 2758

204195S

Oxygen sensor incorporating a thin film electrolyte such as yttria stabilized zirconia sputtered onto a substrate produces an electrical signal in response to differences in oxygen partial pressures. The electrical signal changes rapidly enough for useful operation at temperatures which are substantially lower than those required by conventional oxygen sensors having a rigid, self-supporting thimble, tubular, or disc type electrolyte. For example, rapidly responding signals have been generated at temperatures below 200. degree. C whereas state of the art devices such as those used for sensing exhaust gases in automotive vehicles require temperatures higher than about 400. degree. C.