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4203777 |
Method for purifying particulate mould material
Method for purifying foundry sand which involves the passage of sand through layers of steel wool supported on perforated discs mounted on a vertical shaft in a standpipe. Perforations in the sides...
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4185968 |
Method for generating a solderable surface on a contact piece of silver and finely distributed graphite particles
In order to generate a graphite free, solderable surface on a contact piece for electric contacts, which consists of silver with graphite particles up to about 5% by weight finely and uniformly...
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4169052 |
Process for absorbing hydrocarbons or organic solvents
Surfaces and media contaminated with fatty materials such as hydrocarbons, vegetable or animal oils or fats, organic solvents and other organic compounds may be cleaned by spreading thereon leather...
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4158576 |
Treating surfaces with liquids
Process and apparatus for the liquid treatment of a surface by projecting sponge-like elements. The said elements are metered seriation from a hopper in a controlled positive manner by a...
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4100096 |
Cleaner for hydrophilic metal surfaces of lithographic duplicators
Hydrophilic surfaces on lithographic duplicators are cleaned by light rubbing with a liquid composition comprising levigated alumina of small particle size, a surfactant, an aluminum salt and an...
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4080305 |
Drain cleaners with hair-disintegrating properties
Drain-pipe cleaning compositions of the sodium hydroxide -- aluminum chip -- sodium nitrate type possess the added capability of dissolving or disintegrating proteinaceous fibrous material, without...
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4071982 |
Method and implement for cleaning spring-contacts of a tuner
A method for cleaning the fixed spring-contacts of a cylindrical, drum-type television tuner or other electrical switch having contact-carrying strips arranged around the circumference of a...
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4066539 |
Oil-recovering material and process for preparing and using the same
Atactic polypropylene is cooled, disintegrated into granules, mixed with cereal powders such as wheat flour, starch powders, etc. thereby to deposit the cereal powders around the granules, and...
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4065322 |
Contamination removal method
A method of removing contaminants from the surface of an article is comprised of the steps of providing abrasive particles comprised of a material having the characteristic of reacting with oxygen...
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4056112 |
Containment and removal of radioactive spills by depositing a crosslinked ion exchange composition in a dry form over region of spill
A new use for ion exchange compositions and a new method for utilizing such compositions in containing and removing spills of radioactive materials. The ion exchange compositions when used with...
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4046591 |
Method for cleaning the epidermis using a magnetic field
A method, a product and an apparatus for cleaning the epidermis, wherein a magnetic or magnetizable substance applied onto the epidermis is caused to penetrate into the pores of the skin, and is...
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4040865 |
Removing chlorine-containing insulation with a fluidized medium containing reactive calcium compounds
This application describes a continuous method of removing polyvinyl chloride insulation or other volatilizable material from items such as copper wire without producing undesirable by-products....
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4020857 |
Apparatus and method for pressure cleaning and waxing automobiles and the like
An apparatus and method are herein described for cleaning and waxing automobiles in commercial "car wash" operations without any need for mechanical buffing or polishing as, for example, with...
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4011099 |
Preparation of damage-free surface on alpha-alumina
A chemical polishing process for alpha-alumina utilizing a silica colloid polishing fluid which is both a reactant and a medium for the removal of the reaction product is disclosed.
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4011159 |
Method of removal of petroleum products from solid or liquid surfaces
A method of removal of petroleum products from solid or liquid surfaces, in which the petroleum product is covered with a finely-divided solid polymer, said polymer being selected from the group...
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4004374 |
Descaling bent rod with separated cleaning particles
A method of descaling a rod comprises forming at least one bend in the rod and rotating the bent portion in an appproximately circular path while maintaining it in a space having a distribution of...
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4002488 |
Cleaning, polishing, and drying nails by moving them through vibratory troughs
A process and apparatus for producing nails in polished and clean form comprising means to carry out the steps of providing a continuous flow of nails from a source, subjecting the nails to a...
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3997358 |
Cleaning process for semiconductor die
A method for removing slag and debris from the surfaces of laser scribed semiconductor die is provided in which the die and glass or metal beads are placed into a cylindrical wire mesh basket and...
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3973845 |
Method of reducing friction in blade cleaning of imaging surfaces
A cleaning blade is provided for cleaning residual toner particles and other contaminants from an electrostatic imaging surface comprising a surface having rigid spherical protuberances adapted to...
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3963514 |
Removal of excess metal from the welding seam in the interior of a pipe
The wire-like, severed welding seam burr is removed from a, possibly, coiled pipe by filling the pipe with water under pressure the water containing solid particles and removing the burr with...
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3945155 |
Method of removing ice from a surface by blasting
A method for treatment of a surface over which vehicles travel with particulate material is disclosed. Particulate material is projected onto the surface with kinetic energy exceeding the bonding...
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3928065 |
Composition for cleaning metal cookware
Baked-on, hardened, or carbonized food debris may be easily removed from metal cookware by contacting the debris with a mixture of kaolin and a solvent which is N-methyl-2-pyrrolidone,...
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3891456 |
Surface treatment of titanium and titanium alloys
A process for treating a titanium or titanium alloy surface to improve its bonding characteristics is provided that comprises directing a stream of a slurry of aluminum oxide grit in a...
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3869525 |
Composition comprising a mixture of thermoplastic polymers for internal cleaning of extruders
A process and an extruder cleaning composition are disclosed for removing deposits of encrusted and decomposed material at elevated temperatures from the interior surfaces in contaminated zones of...
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3854997 |
JET FLAME CLEANING
A flame head producing a high velocity jet flame is utilized with a venturi type adapter unit which creates a vacuum pick-up for abrasive particles or coating materials that are stored in a...
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3833414 |
ALUMINIDE COATING REMOVAL METHOD
An improved method for removing an aluminide coating from an article includes a sequential treatment of an aqueous mixed acid solution of nitric and phosphoric acids, an alkaline permanganate...
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3833416 |
SAND BLASTING OF METAL SURFACES AT AN ANGLE OF LESS THAN 45°
A method for removing paint from a metal surface wherein a mixture of a highly volatile chemical solvent and an abrasive (such as sand) is sprayed onto the metal surface (such as an automobile) at...
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3819525 |
COSMETIC CLEANSING PREPARATION
A cleansing composition comprising a soap or detergent base in which substantially completely hydrolyzed water-soluble polyvinyl alcohol particles are uniformly dispersed therein to form a...
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3798064 |
CONGEALING AND CLEANING MIXTURE
A granular, fluid mixture comprising polyvinyl chloride, a lubricant, sodium tripolyphosphate, and optionally a basic heavy metal compound, and a method of employing the mixture in cleaning the hot...
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3793018 |
IMPROVEMENTS IN CLEANING ELECTROPHOTOGRAPHIC IMAGING SURFACES
In an electrophotographic reproduction process in which an electrostatic image is formed on a surface, developed with powder particles, the particle image transferred to a reception material and...
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3776774 |
PROCESS FOR INTERNAL CLEANING OF EXTRUDERS
A process and an extruder cleaning composition for removing deposits of encrusted and decomposed material at elevated temperatures from the interior surfaces in contaminated zones of an extruder....
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3775180 |
METHOD FOR DESCALING STEEL
Steel is descaled by spraying a mixture of a solid such as aluminum oxide and silicon carbide, water and a gas such as air under specified conditions onto the steel.
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3764541 |
DETERGENT INTERMEDIATE AND PROCESS THEREFOR
A detergent intermediate for use in phosphate-free detergent formulations is provided by absorbing a liquid surfactant onto a coarse light soda ash utilizing a pan pelletizer to effectuate absorption.
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3762950 |
CLEANING OF PARTICLES FROM A SURFACE
Cleaning of particles from a surface, in particular toner particles from an electrostatographic recording surface, by confining a mass of a soft, non-tacky material which becomes fluid upon the...
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3716066 |
AIRCRAFT CLEANING
Apparatus and method for cleaning the exterior surface of aircraft using a cleaning solution and small, light, resilient, liquid-absorbent bodies that are insoluble in the cleaning solution which...
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3656948 |
SELECTIVE REMOVAL OF LIQUID DEVELOPER IN A CYCLICAL ELECTROPHOTOGRAPHIC PROCESS
An electrostatographic imaging surface is cleaned of liquid developer by selectively applying to the charged or image areas of the imaging surface a finely divided, dry, absorbent powder. The...
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3583489 |
WELL CLEANING METHOD USING FOAM CONTAINING ABRASIVES
A method of cleaning a well liner by contacting the well liner with a gas-liquid foam having entrained therein a quantity of abrasive particles so as to remove scale and other undesirable material...
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3535159 |
METHOD AND APPARATUS FOR APPLYING ULTRASONIC ENERGY TO A WORKPIECE
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3534805 |
METHOD OF CLEANING THE GAS-SWEPT HEATING SURFACES IN HEAT EXCHANGERS
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3524633 |
HEAT TRANSFER APPARATUS UTILIZING PARTICLES OF GRANULAR MATERIAL
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3514328 |
METHOD FOR CLEANING TEETH
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3493432 |
METHOD FOR DISPOSAL OF SEMI-LIQUID WASTE MATTER OR CELLULAR FILM SACKS FOR DO MESTIC WASTE CONTROL AND DISPOSAL
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3491029 |
SOLID STORABLE AND NON-FOAMING BOTTLE CLEANSING AGENTS
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3485671 |
METHOD OF CLEANING AIR SUPPLY SYSTEMS AND DUCTS
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3461478 |
APPARATUS FOR CLEANING SURFACES
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3452490 |
CLEANING SURFACE DEPOSITS FROM RASCHIG RINGS
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3436785 |
APPARATUS FOR CLEANING ELECTRICAL CONTACTS
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3429744 |
METHOD AND APPARATUS FOR WASHING MOLDED ARTICLES
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3426378 |
APPARATUS FOR WASHING AND DEGREASING
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3425870 |
SURFACE CLEANER FOR PREVIOUSLY POLISHED SURFACES
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