Abstract:
A device for clearing of fluid or gas passageways. The device uses a first cylinder having an external thread, and an internal piston. Another cylinder has an internal thread for screwing on the thread of the first cylinder for forcing the piston through the first cylinder. The first cylinder extrudes gas or liquid under pressure.
Abstract:
The invention relates to a gas nozzle (2) and to a welding torch (1) equipped with said gas nozzle (2), a nozzle assembly (3) and with a contact tube (4) that have a artificially produced patina layer (8) for the purpose of reducing the adhesion of welding spatters at least on a partial area of the surface thereof. The invention also relates to a cleaning device for welding torches (1) having a brush (7) provided with bristles (9). These bristles are made of a very soft elastic material, preferably plastic, and abrasive grains (11) are embedded in said bristles.
Abstract:
On-line and Off-line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents. These cleaning and disinfecting methods work in a variety of industrial water systems including cooling water and boiler water systems.
Abstract:
Hollow porous fibers (12) containing adhered contaminants are cleaned to remove the contaminants by backflushing a liquid to fill the pores, and adding a flow of gas so as to form a two-phase mixture of gas and bubbles of liquid that can scrub the fibers, looseing the contaminants and allowing them to be flushed from the hollow fibers (12).
Abstract:
An apparatus for washing glasses, including a washing compartment and a plurality of fluid outlets (82). A tray (100) for retaining the glasses is positionable in the washing compartment. The tray (100) has at least one fluid directing nozzle (140) which is alignable with the fluid outlets (82) in the washing compartment to permit fluid to flow from the nozzles (140) through the tray (100) and to direct the fluid into contact with the glasses (146). In preferred embodiment, at least a portion of the fluid contacts the glasses (146) substantially tangentially. A method for washing glasses (146) is also disclosed.
Abstract:
A wafer carrier (10) cleaner which comprises a base (24) having a first aperture (16) and a second aperture (26). The wafer cleaner (10) includes a first sprayer (30), and a second sprayer (50), with the first sprayer (30) configured to direct a series of cleaning fluids about the exterior surface of a wafer carrier (C), and the second sprayer (50) configured to direct a series of cleaning fluids about the interior surface of a wafer carrier (C). The expended fluids used to clean the exterior surface of the wafer carrier (C) are directed through the first aperture (16) and into a first fluidic circuit, and the expended fluids used to clean the interior surface of the wafer carrier (C) are directed through the second aperture (26) and into a second fluidic circuit. The provision of dedicated fluidic circuits for the exterior and interior cleaning fluids reduces cross contamination.
Abstract:
The invention relates to a method for cleaning valves or conduits through which hydrolysable polymers are conveyed at operating temperature, wherein after stopping the polymer flow and evacuating as much polymer as possible, steam is fed through the valves or conduits to be cleaned while maintaining the operating temperature at +/- 10 DEG C, whereby steam is fed through the hydrolysis valve (10) embedded in the wall of the valve housing (4) or the conduits and the steam is evacuated through drain holes.
Abstract:
A process for the removal of poly(arylene sulfide) based deposits from an article by contacting said poly(arylene sulfide) based deposits with a polar aprotic compound, a base, an organosulfur compound having the formula: R1-S-S-R2, wherein R1 and R2 are hydrocarbon radicals having from 1 to 50 carbon atoms per radical, and optionally, a halogenated aromatic compound.
Abstract:
A process and apparatus for the ultrasonic cleaning of the interior channel of medical instruments and the cleaning of material from small apertures. The apparatus comprises a wire ultrasonic resonator (11) having a distal end (10) and a proximal end (12), adapted to be inserted at its distal end (10) in axial alignment into or around the instrument (18) to be cleaned and inserted at its proximal end (12) to an ultrasonic transducer (13). The ultrasonic resonator (11) is a solid resonator of a material capable of producing both transverse and longitudinal vibrations in response to ultrasonic transducer (13). The ultrasonic transducer (13) may be of the magnetorestrictive type or of the piezoelectric type. The ultrasonic transducer (13) can be connected to an ultrasonic power generator (16). The solid resonator (11) may be attached at the proximal end to the tip of the ultrasonic transducer (12) by various means. Different embodiments of coupling different types of wire resonators to the ultrasonic transducer (13) horn to allow the ultrasonic waves to be distributed to and along specific lengths of instrument (18). The ultrasonic generator and resonator may be used in many different applications, including but not limited to, cleaning brain shunts, facilitating the removal of pacemaker leads, and cleaning investment case moldings. Further, the ultrasonic generator and resonator can be used in drilling and coring applications.
Abstract:
A special device for cleaning of air vent screws (2) is constituted by a holder (8) with a head part (9), and a mop (11), where the mop is tailored to the head part, the head part (9) and mop (11) are especially designed for complementary adaptation to the shape of an air vent screw (2). The shape of head part (9) and mop (11) is also so that a section (12, 13) extends into the conically shaped opening (4) of the air vent screw, on the inside/outside of the adjustable air flow controller (6) of the vent. Washing is performed by fitting the device against a vent (2), and a rotary motion to absorb dirt from the surfaces (7, 4, 10) of the vent with the mop (11).