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Assignee: Fremont Industries, Inc.


Location: Shakopee, MN
No. of patents: 17

NumberTitleIssue Date
6468470Galvanized metal corrosion inhibitor
A white rust inhibiting composition and method of inhibiting white rust for evaporative water coolers are disclosed. The composition includes, in combination, a blend of one or more organophosphorus compounds, one or more tannin compounds, and one or more...
10/22/2002
5865343Chemical dispensing system
A dispensing system for particulate solid chemical materials is disclosed that includes a charging hopper for receiving a sealed chemical container of solid particulate material to be dispersed, a delivery pipe attached to the charging hopper for conducti...
02/02/1999
5472523Method and composition for treatment of phosphate coated metal surfaces
A final seal rinse or pre-treatment for improving the adhesion and corrosion protection afforded by application of organic coatings to metallic substrates, with the seal rinse comprising an aqueous solution of comprising an effective concentration of (2-b...
12/05/1995
5433773Method and composition for treatment of phosphate coated metal surfaces
A final seal rinse or pre-treatment for improving the adhesion and corrosion protection afforded by application of organic coatings to metallic substrates, with the seal rinse comprising an aqueous solution of comprising an effective concentration of (2-b...
07/18/1995
5407597Galvanized metal corrosion inhibitor
A white rust inhibiting composition and method of inhibiting white rust for evaporative water coolers are disclosed. The composition includes in combination a blend of one or more organophosphorus compounds, one or more carbamate compounds, and one or mor...
04/18/1995
5073287Coating remover and paint stripper containing N-methyl-2-pyrrolidone, methanol, and sodium methoxide
A quasi-azeotropic stripper composition for the removal of paint or other organic coatings from metallic surfaces and including a formulation containing 1-10% by weight of an alcoholate activator consisting of sodium methoxide, 10-14 20% by weight of a co...
12/17/1991
5024783Boiler and boiler water treatment system
An in-service formulation for the removal of scale deposits from metallic working surfaces of boilers and for the ongoing prevention of build-up of such deposits on boiler surfaces, with such deposits commonly consisting of insoluble salts of calcium toge...
06/18/1991
5023011Cooling water treatment system
An in-service formulation for the removal of scale deposits from metallic working surfaces of cooling towers and for the ongoing prevention of build-up of such deposits on cooling tower surfaces, with such deposits commonly consisting of insoluble salts o...
06/11/1991
4952320Chromium recovery process
A process for removal and recovery of chromium ions (chromate, dichromate, or combinations thereof) from aqueous waste water of surface treatment phosphatizing solutions and for recycling of the treated waste water following replenishment wherein the aque...
08/28/1990
4390465Low temperature composition for plating pretreatment of ferrous metals
A preparation of an aqueous pre-treatment working solution for ferrous metals, wherein the composition includes in its formulation a composite alkaline builder including sodium hydroxide, sodium metasilicate, and sodium carbonate, water conditioners inclu...
06/28/1983
4279768Service descaler for aqueous systems
A scale removing formulation designed to remove scale build-up on metallic working surfaces, the scale being conventional and composed of calcium salts and iron oxides from aqueous systems such as boilers, cooling towers, heat exchangers, and the like, wh...
07/21/1981
4261842Lubricant for high temperature operations
A semi-synthetic lubricant for high temperature applications, particularly adapted for use on relatively movable metallic surfaces during the shearing of molten glass, and consisting of an aqueous solution of a formulation comprising a non-drying vegetabl...
04/14/1981
4235051Finishing compound for barrel and vibratory surface conditioning of ferrous and non-ferrous metals
A method and formulation for imparting a smooth finish to metallic components by subjecting the components to relative motion within a barrel or vibratory finishing machine, wherein the metallic components are immersed in a media which includes abrasive p...
11/25/1980
4220456Paint removal composition spray method for paint booths
A method and formulation for separating airborne overspray mists of paint and lacquer from ambients which includes the steps of exposing the mist to an aqueous solution of a deactivating formulation, permitting the contact to continue until the paint has ...
09/02/1980
4048121Low temperature metal cleaning composition
Metal cleaning formulation for the preparation of low temperature-low foam aqueous metal cleaning and polishing baths. The formulation includes an alkaline builder consisting of sodium metasilicate together with sodium hydroxide, sodium carbonate, or mixt...
09/13/1977
3979219Wood finish remover
An acidic wood finish remover formulation which consists essentially of a mixture of hydroxyacetic acid in methylene chloride solution. A vapor pressure depressant is present, such as paraffin and a solubilizer for the wax, such as toluene is present. An ...
09/07/1976
3932243Cleaning and polishing compound for barrel and vibratory finishing of ferrous and non-ferrous metals
A formulation for the surface treatment of metal articles wherein the article to be treated is immersed and agitated in a working solution of the formulation. The formulation consists essentially of the esterification reaction product of phosphoric acid b...
01/13/1976
 
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