Ronald L Robinson

US Patent:

47547995, Jul 5, 1988

Filed:

Feb 11, 1987

Appl. No.:

7/013462

Inventors:

Ronald K. Robinson - Norwalk CA

International Classification:

B22D 1710

US Classification:

164113

Abstract:

A process is disclosed for die-casting aluminum alloy A365. 2, or like alloys having high aluminum and low iron content, which have hitherto not been formed into parts in die-casting processes because of undesirable soldering of the cast part to the steel die. In the disclosed process the molten aluminum alloy containing a maximum of 0. 12 percent iron and at least 90 percent aluminum is injected under pressure into a die through a gate at an injection rate which is approximately 55 to 93 cubic inch per second. When the rate of injection of the aluminum alloy into the die is in this range, there is no sticking or soldering of the die-cast part to the steel walls of the die.

US Patent:

44118317, Oct 25, 1983

Filed:

Dec 2, 1981

Appl. No.:

6/326439

Inventors:

Ronald A. Robinson - Garden Grove CA
John O. Hudson - Garden Grove CA

Assignee:

Purex Industries, Inc. - Lakewood CA

International Classification:

C11D 183
C11D 320

US Classification:

252554

Abstract:

One may enhance the soil release properties of textile fabrics, particularly polyester containing fabrics, by laundering same with a stable aqueous detergent composition having enhanced soil release properties and consisting essentially of: (a) 0. 2 to 20. 0% of an ethylene terephthalate/polyethylene oxide terephthalate copolymer having a ETP/PEOTP ratio of 1:1 to 9:1 and a total molecular weight from about 9,000 to 60,000, the molecular weight of the polyethylene oxide terephthalate being from about 500 to about 6,000; (b) 5 to 40% of an anionic detergent selected from the group consisting of linear benzene sulfonates having from 10 to 73 carbon atoms, alkane sulfonates having from 14 to 18 carbon atoms, alpha olefine sulfonates having from 14 to 18 carbon atoms, sulfosuccinates, and sulfonated alkyl diphenyloxides; (c) up to 40% of a nonionic detergent selected from the group consisting of ethoxylated linear alcohols, ethoxylated alkylphenols, ethoxylated mono- and diglycerides and ethoxylated secondary alcohols; and (d) a buffer sufficient to maintain the pH of the aqueous composition within the range of 5. 0 to 9.

US Patent:

46067752, Aug 19, 1986

Filed:

Apr 5, 1984

Appl. No.:

6/597025

Inventors:

Ronald A. Robinson - Garden Grove CA
William J. Boan - Westminster CA
George D. Evans - Tustin CA

Assignee:

Purex Corporation - Lakewood CA

International Classification:

B08B 704

US Classification:

134 18

Abstract:

The method of washing articles in an automatic dishwasher includes the steps: (a) providing a first volume of a first treating component for use in the dishwasher, (b) providing a second volume of a second treating component in close transported association with the first volume, but isolated therefrom, for presentation at the time of use of said first component, (c) one of said first and second components consisting essentially of nonionic surfactant, and the other of said first and second components consisting essentially of chlorine release agent, and (d) separating some of said second component from said close association with the first component and employing same in the dishwasher at the time of adding said first component to the dishwasher.

US Patent:

42870798, Sep 1, 1981

Filed:

Jun 2, 1980

Appl. No.:

6/155571

Inventors:

Ronald A. Robinson - Garden Grove CA

Assignee:

Purex Corporation - Lakewood CA

International Classification:

C11D 754

US Classification:

252 99

Abstract:

An aqueous cleaning composition to be applied from a squirt bottle comprises a particulate abrasive, a two-part thickness consisting essentially of a mixture of fumed silicon dioxide and smectite clay, a hypo-halite bleach, alkaline builder salt, and water.

US Patent:

44604874, Jul 17, 1984

Filed:

Apr 26, 1982

Appl. No.:

6/371981

Inventors:

Ronald A. Robinson - Garden Grove CA
Wendie T. Graf - Los Angeles CA
George D. Evans - Tustin CA

Assignee:

Purex Corporation - Lakewood CA

International Classification:

D06M 1346
D06L 302
C11D 754

US Classification:

252 88

Abstract:

A stable, fabric bleaching and softening composition to be used in rinse water in contact with fabrics, and prior to fabric drying, consisting essentially of (a) hydrogen peroxide, (b) cationic amine softener, and (c) water, wherein the weight ratio of softener to hydrogen peroxide is from about 1:20 to 2:3.