Bernard M Abraham

US Patent:

51959984, Mar 23, 1993

Filed:

Aug 21, 1991

Appl. No.:

7/748246

Inventors:

Bernard M. Abraham - Oak Park IL
Joel Z. Cornfield - Oak Park IL

Assignee:

Adastra Corporation - Oak Park IL

International Classification:

A61F 544

US Classification:

604351

Abstract:

A penile meatal guard for a Foley-type catheter is composed of a material having a greater rigidity than the catheter and including a tubular section construction and arranged to slideably engage the catheter for insertion into the end of the urethra. An annular locating ring is disposed at the outer end of the tubular section for engaging the distal end of the penis.

US Patent:

44135068, Nov 8, 1983

Filed:

Mar 5, 1981

Appl. No.:

6/240647

Inventors:

Bernard M. Abraham - Oak Park IL
Kenjiro Miyano - Downers Grove IL
John B. Ketterson - Evanston IL

International Classification:

G01N 1302

US Classification:

73 644

Abstract:

A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

US Patent:

45370648, Aug 27, 1985

Filed:

Oct 18, 1983

Appl. No.:

6/542957

Inventors:

Bernard M. Abraham - Oak Park IL
Kenjiro Miyano - Sendai, JP
John B. Ketterson - Evanston IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G01N 1116
G01N 1302

US Classification:

73 54

Abstract:

Instrument for measuring the shear modulus of a monomolecular film comprises a circular trough having inwardly sloping sides containing a liquid for supporting the monolayer on the surface thereof; a circular rotor suspended above the trough such that the lower surface of the rotor contacts the surface of the liquid, positioned such that the axis of the rotor is concentric with the axis of the trough and freely rotable about its axis; apparatus for hydrostatically compressing the monolayer in the annular region formed between the rotor and the sides of the trough; and apparatus for rotating the trough about its axis. Preferably, hydrostatic compression of the monolayer is achieved by removing liquid from the bottom of the trough (decreasing the surface area) while raising the trough vertically along its axis to maintain the monolayer at a constant elevation (and maintain rotor contact). In order to measure viscosity, a apparatus for rotating the rotor about its axis is added to the apparatus.

US Patent:

53030303, Apr 12, 1994

Filed:

Dec 2, 1991

Appl. No.:

7/801153

Inventors:

Bernard M. Abraham - Oak Park IL
John B. Ketterson - Evanston IL
Thomas M. Bohanon - Evanston IL
John M. Mikrut - Evanston IL

Assignee:

Northwestern University - Evanston IL

International Classification:

G01B 902

US Classification:

356345

Abstract:

A non-contact method and apparatus for measuring and monitoring the surface of a fluid using fiber optics and interferometric detection to permit measurement mechanical characteristics' fluid surfaces. The apparatus employs an alternating electric field gradient for generating a capillary wave on the surface of the fluid. A fiber optic coupler and optical fiber directs a portion of a laser beam onto the surface of the fluid, another portion of the laser beam onto the photo sensor, and directs light reflected from the surface of the fluid onto the photo sensor. The output of the photo sensor is processed and coupled to a phase sensitive detector to permit measurement of phase shift between the drive signal creating the capillary wave and the detected signal. This phase shift information is then used to determine mechanical properties of the fluid surface such as surface tension, surface elasticity, and surface inhomogeneity. The resulting test structure is easily made compact, portable, and easy to align and use.

US Patent:

41720172, Oct 23, 1979

Filed:

Oct 27, 1977

Appl. No.:

5/845909

Inventors:

Bernard M. Abraham - Oak Park IL

International Classification:

C25C 300
C01C 102
C01B 700
C01D 1700

US Classification:

204 60

Abstract:

A process for producing chlorine from ammonium chloride which comprises vaporizing ammonium chloride, contacting the vapors with a metal selected from the group consisting of tin, zinc and cadmium whereby a metal chloride is formed and then electrolyzing the metal chloride in the presence of a fused salt electrolyte. The ammonium chloride is preferably obtained from the Solvay soda ash process and the process for producing chlorine is integrated with the Solvay process. The integrated process produces chlorine at a substantial energy savings and without calcium chloride being produced as a by-product.

US Patent:

40027295, Jan 11, 1977

Filed:

Apr 6, 1976

Appl. No.:

5/674199

Inventors:

Bernard M. Abraham - Oak Park IL
Felix Schreiner - Mokena IL

Assignee:

The United States of America as represented by the United States Energy
Research and Development Administration - Washington DC

International Classification:

C01B 1302
C01B 102

US Classification:

423579

Abstract:

Water is thermochemically decomposed to produce hydrogen by the following sequence of reactions: KI, NH. sub. 3, CO. sub. 2 and water in an organic solvent such as ethyl or propyl alcohol are reacted to produce KHCO 3 and NH. sub. 4 I. The KHCO. sub. 3 is thermally decomposed to K. sub. 2 CO. sub. 3, H. sub. 2 O and CO. sub. 2, while the NH. sub. 4 I is reacted with Hg to produce HgI. sub. 2, NH. sub. 3 and H. sub. 2. The K. sub. 2 CO. sub. 3 obtained by calcining KHCO. sub. 3 is then reacted with HgI. sub. 2 to produce Hg, KI, CO and O. sub. 2. All products of the reaction are recycled except hydrogen and oxygen.