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5517943 |
Vacuum CVD apparatus
A vacuum CVD apparatus including a reaction chamber into which a fluorine-containing compound gas and a carrier gas are introduced for cleaning. The fluorine-containing compound gas reacts with the...
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5514219 |
Articulated annular sludge lance
An articulated annular sludge lance and method is described for cleaning sludge from tubes in a steam generator from the annular chamber surrounding the robe bundle. The articulated annular sludge...
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5507875 |
Method for cleaning concrete delivery trucks
Hardened concrete is removed from the drum of a concrete-transporting truck by applying strong vibrational force to the exterior of the drum. Apparatus for applying the vibration includes a...
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5490882 |
Process for removing loose powder particles from interior passages of a body
A technique for removing loose powder from the interior surfaces of ceramic molds made using layer manufacturing processes, such as three dimensional printing processes. The interior of a mold can...
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5478406 |
Method and apparatus for cleaning flexible containers
A method and apparatus for cleaning a flexible bulk container includes a dust collector having a negative pressure chamber connected through a vacuum hose to a fill spout support chamber to which a...
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5476615 |
Low foam sanitizers
A sanitizer composition comprising a) an amine oxide having the formula: ##STR1## wherein the R 1 groups are independently selected from C 1 -C 4 alkyl or alkoxy groups and R 2 is a branched...
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5464479 |
Method for removing undesired material from internal spaces of parts
A method and apparatus for removing undesired material from the internal spaces of parts and more particularly, air cooled gas turbine engine blades. The cleaning method employs a series of an...
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5458691 |
Method and apparatus for flushing fluid through the interstices of subsea umbilicals
An umbilical is flushed with a fluid to wash out any permeants in the interstices within the umbilical core. A housing may be installed on an open end of the core with the flushing fluid introduced...
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5454876 |
Process for reducing lead leachate in brass plumbing components
A process for treating brass plumbing components to reduce leachable lead when the component is subsequently exposed to water includes exposing the brass component in an aqueous solution containing...
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5451265 |
Method and apparatus for use in the press or dryer section of a paper machine or similar equipment
A method for cleaning one or more orifice slots (2, 3) of a blow box (1) or similar object particularly in the press or dryer section of a paper machine or similar equipment. The orifice slot (2,...
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5447572 |
Method for removing debris from barrel locks
An apparatus and method for removing debris from the bore of a barrel lock is disclosed. The apparatus is a cleaning tool comprising a handle, the handle having a first end having a rod with a...
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5447573 |
Process for cleaning used gas plant filters
A process of detoxifying gas plant filters for environmentally acceptable disposal involves immersing the filters in aqueous cleansing fluid in a tank, containing a suitable cleaning agent. When...
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5443768 |
Abrasive and purge compositions
This invention relates to an abrasive composition comprising (a) a major amount of at least one abrasive powder, (b) at least one resin selected from the group consisting of a polymer of a diene, a...
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5441573 |
Method for cleaning a metal mold
A rubber composition for cleaning a metal mold comprises a rubber, an aminoalcohol, a glycol, an adsorptive, and if desired, an organic silane of the formula, Z 1 -Alk 1 -S n -Alk 2 -Z 2 where...
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5441574 |
Hollow airfoil cavity surface texture enhancement
A method and passage system is applicable to hollow structures, such as hollow rib core fan blades, for removing alpha case and contamination, for improving surface texture, and for smoothing...
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5435853 |
Process for cleaning the seats of double seat valves
A process for cleaning the seats of a double seat valve having two independently movable closing elements, each of the closing elements being associated with a respective one of the valve seats,...
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5427625 |
Method for cleaning heat treatment processing apparatus
While the interior of a reaction vessel is being deaerated by a first vacuum pump, an inert gas is supplied from an upstream side (reaction gas bottle side) of a flow rate control unit (MFC) to a...
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5425814 |
Method for quick turnaround of hydrocarbon processing units
A quick cleaning method for hydrocarbon processing is described which avoids using the time honored steamout as a cleaning step by isolating the equipment to be cleaned from the rest of the...
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5421902 |
Non-plasma cleaning method for semiconductor manufacturing apparatus
When removing a laminar deposit existing in a thin film forming operational system of a semiconductor manufacturing apparatus, a mixture gas prepared by mixing nitrogen trifluoride gas with a...
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5421903 |
Method for washing a tank and for recovering and treating residual tank liquid
A system for washing a tank and recovering and treating residual tank liquid comprises a first system unit equipped with a suction device for sucking and discharging residual tank liquid, a second...
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5417810 |
Papermachine headbox cleaning system
Interior surfaces of a papermachine headbox slice plenum are mechanically cleaned by a method using scouring tools secured to a sled structure which is manually reciprocated within the slice plenum...
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5415696 |
Method for removing alkaline sulfate scale in downhole tubulars
The present invention relates to a method of removing alkaline earth sulfate scale from the interior surface of downhole production tubing comprising contacting the scale with a solvent having a...
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5389156 |
Decontamination of hydrocarbon process equipment
Contamination can be removed from equipment of a chemical processing flow path by pumping through the plant an aqueous solution at an elevated temperature of an extractant, such as terpene, and a...
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5389155 |
Liquid removal process in pipelines through a moving piston
A process for use in gas pipelines, where the condensate liquid is withdrawn by passing a cylinder made out of a spongy polymeric material through the pipeline, includes propelling the cylinder by...
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5385014 |
Valve and method of valve use while washing a compressor in an aircraft engine
The present invention provides a valve for preventing contamination of a fuel management system connected to a pneumatic sense line by closing communication of compressed air from a scroll of the...
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5385613 |
Method for flushing an automatic transmission cooling system
A method and apparatus for flushing an automatic transmission cooling system. A sealed pressurized canister having an outlet and no inlet and a biodegradable soap solution thereinside is coupled to...
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5383974 |
Method for rejuvenating a drainfield or dry well
A method and apparatus is provided for cleaning and rejuvenating septic tank sewage systems. Where the septic tank has a drainfield associated therewith, the method comprises penetrating the ground...
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5383973 |
Method for cleaning heating, ventilating and air conditioning ducts
A method for removal of undesirable foreign matter from the interior of existing duct systems. The method comprises the insertion of a plurality of members into a stream of air within the existing...
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5380370 |
Method of cleaning reaction tube
Prior to formation of a polysilicon film on a wafer, a pre-coat film having a thickness of 1 μm and consisting of polysilicon is formed on the inner wall surface of a reaction tube or the surface...
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5380369 |
Process for cleaning and/or disinfecting and/or maintaining medical or dental instruments
In a process for cleaning and/or disinfecting and/or maintaining medical or dental instruments, in a washing container filled with liquid, particularly water, the at least one tool holder being...
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5370746 |
Process and apparatus for cleaning small diameter clogged holes
A cleaning process and apparatus for cleaning small diameter clogged holes or passages fashioned as deep through-holes or small diameter through-holes of varying sizes. The holes may be provided in...
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5368651 |
Method of steam-treating sanitary systems and/or for disinfecting the pipelines of sanitary systems and whirlpool system for implementing the method
A whirlpool system includes a basin defined by basin walls; a pipe system including a central conduit and nozzles coupled to the central conduit and situated in the basin walls and having nozzle...
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5360487 |
Automatic transmission valve body cleaning accessory
A template for use in cleaning a valve body assembly for an automatic transmission has hydraulic passageways, at least one spring-loaded valve, and fasteners for the valve. A solid sheet has a...
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5356478 |
Plasma cleaning method for removing residues in a plasma treatment chamber
A plasma cleaning method for removing residues previously formed in a plasma treatment chamber by dry etching layers such as photoresist, barriers, etc., on a wafer. The method includes introducing...
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5356481 |
Method of DI can surface treatment
Inverted DI cans are fed by a conveyer having partitions in a plurality of rows such that they are spaced apart in each row, and treatment liquid is sprayed against the travelling cans from above...
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5356482 |
Process for vessel decontamination
An improved process for the decontamination of process equipment and vessels is described wherein an extractant material for the contaminant and a surfactant are vaporized, heated with steam, to...
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5350458 |
Method for cleaning a diagnostic analyzer
The invention provides a cleaning solution and a method of using the cleaning solution for cleaning diagnostic analyzers. The solution contains a rapidly wetting surfactant and an inorganic or...
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5350274 |
Self-cleaning side channel machine having at least one impeller rotatably mounted in the housing of the machine
A side channel machine has at least one impeller, which is rotatably mounted in the housing of the machine. The impeller includes a disk-shaped hub part and of a blade ring mounted on its...
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5344495 |
Process of cleaning a panel in the manufacture of a cathode ray tube
A method of for developing a panel in manufacture of a cathode ray tube which prevents possible dispersion of developing liquid to achieve a good developing operation free from irregular...
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5336334 |
Method for cleansing a portable keg tap
A cleaning apparatus cleanses a portable keg tap for a keg of a beverage, such as beer. A keg tap coupling has an orifice which emulates a fluid outlet orifice of a keg. The keg tap coupling is...
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5336330 |
Method for cleaning an interior cavity of dishware
A dish scrubber has an elongated handle and a cylindrical scrubbing element attached at one end to the handle. The scrubbing element is of laminar configuration having a leading layer of scouring...
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5336332 |
Washing apparatus and method for fluidized bed pelletizing and drying machine
Means is disclosed for washing the inside of a pelletizing machine containing a bag filter which is capable of being raised and lowered within the body of the machine. A vertically movable, upright...
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5332023 |
Leaching of ceramic materials
The article together with the alumina core in situ is placed in a sealable vessel containing a concentrated aqueous potassium hydroxide leaching liquor at a temperature immediately below its normal...
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5330581 |
Use of caustic and surfactant as a cleaner for recycled plastic
A method for cleaning plastic objects, especially for recycling, whereby liquid surfactant and liquid caustic are added as separate feed streams to water to create a cleaning solution. The...
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5318700 |
Engine and radiator coolant treatment and handling, enabling coolant reuse
The method of treating used liquid coolant employed in the coolant passages of an engine or radiator, and employing a coolant pumping structure, that includes providing a source of supply coolant...
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5308405 |
Toilet bowl cleaning system
A method is provided for cleaning a toilet bowl and dissolving mineral deposits in the holes under the rim of the toilet which includes the steps of (a) flushing the toilet to empty the tank and to...
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5298075 |
Furnace tube cleaning process
A process for thermal oxidation of silicon or cleaning of furnace tubes used in semiconductor manufacturing by exposing the silicon or tube to temperatures above 700° C. while flowing a carrier...
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5294262 |
Method of cleaning a process tube with ClF.sub.3 gas and controlling the temperature of process
A method of cleaning a process tube and a wafer boat, comprising the steps of, carrying wafers out of the process tube, controlling the temperature in the process tube saw as or lower than a...
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5290364 |
Process for blast cleaning fixtures having internal passageways
A process for blast cleaning an article having internal passageways that produces a clean, weldable, and brazable article that is free of blast media residue. The process includes blasting the...
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5286302 |
Method for cleaning intermediate bulk containers on a mobile vehicle
Several intermediate bulk containers (11) are mounted on a trailer (10) by placing the IBCs on adjustable platforms (19). Flexible drain conduits (65) are connected to the bottom drain outlets of...
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