Robert G Langley

US Patent:

44262620, Jan 17, 1984

Filed:

Apr 29, 1982

Appl. No.:

6/372906

Inventors:

Robert C. Langley - Millington NJ
Herbert Myers - South Orange NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C25B 134

US Classification:

204 98

Abstract:

Platinum and iridium in catalytic electrodes for electrochemical uses is partially replaced with lead ruthenate-tantalum oxide composite. Electrodes are fabricated by first coating a film-forming metal substrate with a platinum-iridium composite undercoat, then overcoating with a composite containing lead, ruthenium, tantalum, platinum, iridium and oxygen. The most preferred anodes have a titanium substrate initially coated with approximately at least 2 gm/m. sup. 2 of 70:30. sup. w /o Pt:Ir composite, followed by about 20 gm/m. sup. 2 of a composite having the nominal composition of 22. 2. sup. w /o Pb. sub. 2 Ru. sub. 2 O. sub. 6 ; 66. 6. sup. w /o Ta. sub. 2 O. sub. 5 ; 7. 9. sup. w /o Pt and 3. 4. sup. w /o Ir. The outer layer of the prepared anode contains from about 10 to about 16. sup.

US Patent:

45128669, Apr 23, 1985

Filed:

Oct 4, 1983

Appl. No.:

6/538799

Inventors:

Robert C. Langley - Millington NJ

International Classification:

C25B 1100

US Classification:

204290F

Abstract:

An anode for use in electrolytic processes with an electrolyte containing sulfuric acid. The anode comprises a valve metal substrate, a lead or lead alloy antipassivation layer in contact with the valve metal substrate, and a lead ruthenate or lead iridate catalyst in surface contact with the lead or the lead alloy. Also disclosed are methods for employing the anode in electrowinning processes as well as a process for operating an electrolytic cell.

US Patent:

43648142, Dec 21, 1982

Filed:

May 20, 1981

Appl. No.:

6/265548

Inventors:

Robert C. Langley - Millington NJ

International Classification:

C25B 900
C25B 1103
C25B 1110

US Classification:

204278

Abstract:

An apparatus is disclosed for the electrolytic production of a solution of an aqueous alkali metal hypochlorite solution. The apparatus is especially useful for chlorinating swimming pools. The single vessel is partitioned horizontally into an upper compartment for the brine and a lower compartment serving as the electrolytic cell and provided with a removable electrode assembly with an electrode spacing of at least 0. 5 inch. Brine feeds through and evolved gas emerges through the partition.

US Patent:

41860667, Jan 29, 1980

Filed:

Oct 26, 1978

Appl. No.:

5/953741

Inventors:

Robert C. Langley - Fairfield NJ

Assignee:

Titanium Industries - Fairfield NJ

International Classification:

C25B 116
C25B 126
C25B 1110
C25B 1104

US Classification:

204 98

Abstract:

A cathode for use in an electrolytic process which comprises a substrate metal with a surface coating of a silver-titanium intermetallic formed in situ on the cathode.

US Patent:

42935130, Oct 6, 1981

Filed:

May 12, 1975

Appl. No.:

5/576640

Inventors:

Robert C. Langley - Millington NJ
Herbert Myers - Newark NJ
Muriel Abrash - Paterson NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Edison NJ

International Classification:

C04B 3564

US Classification:

264 60

Abstract:

Monolithic honeycomb structures are made by heating to a fluid condition an admixture comprising an inorganic powder and a temporary vehicle, forcing the fluid admixture through a stencil having a plurality of masking islands thereby forming a thin lamina beneath the stencil which is cooled immediately to form an essentially solid structure. This process is repeated to form a composite of successive cohered laminae thereby forming a monolithic honeycomb structure, which is heated to remove the vehicle and subsequently sintered to form a self-supporting honeycomb structure.

US Patent:

39516725, Apr 20, 1976

Filed:

Nov 7, 1974

Appl. No.:

5/521937

Inventors:

Robert C. Langley - Millington NJ
Muriel Abrash - Paterson NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Newark NJ

International Classification:

C03C 310
C03C 304
C03C 502
H01B 102

US Classification:

106 53

Abstract:

Thick film resistive elements are prepared from an intimate admixture comprising silica, lead oxide and ruthenium dioxide or iridium dioxide which is heated to a temperature sufficient to provide a lead-containing glass having dispersed therein lead ruthenate or lead iridate. The lead-containing glass is comminuted and a resistor paste is formed which can be subsequently coated and fired on to a desired substrate to form the thick film resistive component. The method of this invention may facilitate the production of thick film resistors exhibiting a low temperature coefficient of resistivity, relative freedom from noise and drift, and high moisture resistance.

US Patent:

40768945, Feb 28, 1978

Filed:

Oct 28, 1975

Appl. No.:

5/626136

Inventors:

Robert C. Langley - Millington NJ
Muriel Abrash - Patterson NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

B32B 1706

US Classification:

428428

Abstract:

Thick film resistive elements are prepared from an intimate admixture comprising silica, lead oxide and ruthenium dioxide or iridium dioxide which is heated to a temperature sufficient to provide a lead-containing glass having dispersed therein lead ruthenate or lead iridate. The lead-containing glass is comminuted and a resistor paste is formed which can be subsequently coated and fired on to a desired substrate to form the thick film resistive component. The method of this invention may facilitate the production of thick film resistors exhibiting a low temperature coefficient of resistivity, relative freedom from noise and drift, and high moisture resistance.