Abstract: Use, as corrosion inhibitor of .alpha.-1,4-thiazine alkanephosphonic acids.

Abstract: An apparatus for the catalytic cracking of hydrocarbons having two independent transfer line reactors, each of which is associated with an independent cyclone separation system and wherein the cyclone separation systems are located within a common separator vessel. More particularly, the improved apparatus can be used for the simultaneous fluidized catalytic cracking of a hydrocarbon feedstock and the recracking of a selected fraction of the products from said cracking without commingling the feedstock and the selected fraction to be recracked.

Abstract: Air removal is completed and ascertained, in steam sterilization systems which use steam flow through a sterilizing chamber to facilitate air removal, by methods which enable steam-table values for a dependent variable relationship of pressure and temperature, as exhibited by confined saturated steam, to be utilized under steam flow conditions.Apparatus for controlling and measuring chamber conditions are provided so that such established steam-table values for confined steam can be readily and reliably used to establish and ascertain complete air removal while steam is flowing through the chamber.In a representative embodiment, chamber pressure is held substantially constant while the remaining variable chamber temperature is measured. Venting of chamber atmosphere is continuous during such control of chamber pressure with chamber temperature being measured until a value is reached corresponding to the steam-table value at the level of the chamber pressure being held.

Abstract: Article used in a method for sanitizing toilets wherein a hypochlorite sanitizing agent and an oxidizable dye are dispensed from separate dispensing means into the toilet flush water to provide a color to the bowl water. The color disappears within a short time after the flush, thereby providing a visual indicator of the activity of the sanitizing agent.

Abstract: Use, as a corrosion inhibitor, of di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids.

Abstract: Sterilizing apparatus preferably comprises an enclosure surrounding the top, bottom and sides of a central sterilizing enclosure space and adjacent inlet and outlet enclosure spaces opening horizontally to the exterior of the enclosure at the opposite ends thereof. A continuously moving conveyor carries open-topped containers to be sterilized horizontally through the inlet, sterilizing and outlet enclosure spaces of the enclosure. The sterilizing enclosure space is divided by partition walls into an upper compartment which opens at the bottom thereof into a lower compartment immediately above the path of travel of the open tops of the containers passing through the lower compartment of the sterilizing enclosure space.

Abstract: A solvent-evaporation type of deodorant is added to the windshield washer fluid reservoir of a motor vehicle. When the material is sprayed onto the windshield of the vehicle while the vehicle's air conditioning (heating, cooling or ventilating) system is running, the deodorant is drawn into the vehicle passenger compartment where it dissolves odor-causing particles and removes them.

Abstract: Blood units and water units for membrane type blood oxygenator in which blood units are separated from water units by oxygen units; oxygen diffuses through membranes of blood units from oxygen units and water units apply pressure to blood units through intervening oxygen units. The blood unit is formed by a frame having a pair of opposing sides and a pair of opposing ends, the ends being imperforate, the sides being formed with flow-through passages for flow of blood from one blood unit to the next and with lateral passages for flow of a portion of the blood into, through and out of the blood unit, three being a semi-permeable membrane affixed to opposite faces of the frame. The water unit comprises a water impermeable, expansible water mattress having rigid end members formed with water flow-through passages for flow of water from one water unit to the next and having lateral passages for flow of a portion of the water into, through and out of the mattress.

Abstract: A sterilization apparatus and method according to which articles are sterilized by subjecting them to an ultrasonic/heat activated disinfectant liquid in the presence of heat and ultrasonic vibrations. The preferred disinfectant liquid includes a quaternary ammonium compound and a surfactant at a pH of 12. Treatment according to the invention results in the killing of vegetated bacteria, fungi, viruses and spores.

Abstract: Intraocular lenses are terminally sterilized without any significant chemical change in the surface of the lenses by placing the intraocular lenses in a 5% to 10% sodium hydroxide solution for from 24 hours to 3 hours, respectively, and storing the intraocular lenses in the same solution until they are used.

Abstract: A catalytic reactor for reducing nitrogen oxide (NO.sub.x) contained in exhaust gas under the presence of ammonia is provided, wherein tubular catalyst units each being a ring shape in cross-section are disposed in spaced apart relationship from one another in the cross-section of the flow path of the exhaust gas in a manner that tubular axes thereof are in parallel with the direction of gas flow within a reaction vessel through which the exhaust gas containing nitrogen oxide (NO.sub.x) and ammonia flows, said catalyst units each being secured to the interior of the reaction vessel at least as two points in the longitudinal direction by support means.

Abstract: In order to increase or maintain the capacity of fluid bed calciners in the calcination of phosphate rock containng large amounts of organic matter ("hot rocks"), the calciner is modified to permit a pyrolysis reaction to occur in the freeboard zone of the calciner. The hydrocarbons and carbon monoxide gas produced by the pyrolysis reaction are removed from the calciner and burned in an afterburner unit. Dust and fines entrained in the exhaust from the calciner are sent to a dust oxidation chamber outside the calciner for oxidation by addition of air.

Abstract: The angular relation of a Sach foot to a shin may be adjusted during assembly to provide a desired heel height so that one type of Sach foot may be stocked for each shoe size and adapted for different heights of heel. The connecting bolt passes through a rotatable trunnion transverse to the length of the foot and is pivotable between fore and aft limits, and material is removed from the confronting surfaces of the foot and shin during fitting or packing material is inserted between them to effect such angular displacement.

Abstract: In the treatment of articles with a sterilant gas such as an alkylene oxide, and the circulation of the gas throughout a treatment chamber containing the articles to be treated, a gas circulating system completely devoid of electrical contacts, switches, electrical motors and other potentially dangerous electrical components which could cause explosive ignition of the sterilant gas. The circulation system includes a fluid-driven turbine-like impeller completely isolated from the sterilant gas, and drivingly coupled to a fan blade which serves to force the gas through conduits and to circulate and recycle the sterilant gas throughout the treatment chamber. In a second embodiment of the invention a magnetically coupled drive is used to actuate the sterilant-circulating fan.

Abstract: A method for inhibiting corrosion of nonferrous metals in contact with circulating water comprising the steps of adding to circulating water in contact with non-ferrrous metals from 0.05 to 10 gm/m.sup.3 of at least one 3-amino-5-alkyl-1,2,4-triazole wherein said alkyl has from 2 to 8 carbon atoms and adjusting said water to a pH of from 6 to 10; as well as corrosion inhibiting compositions containing said 3-amino-5-alkyl-1,2,4-triazole.

Abstract: A method and composition are disclosed for treating corroding aqueous mediums to reduce the corrosion of metal surfaces exposed thereto. The treatment comprises water-soluble chromate and a copolymer of acrylic acid and hydroxy alkyl acrylate.

Abstract: A method of sterilization of material in an autoclave, at which method pre-vacuum is created during a certain period of time in the autoclave chamber, during the following period of time steam supply and sterilization of the material take place, and during the period of time following thereafter after-vacuum is created. During the entire procedure of said lastmentioned period of time (c) heat is supplied from an extra heat source (5), whereby the temperature at the beginning of the lastmentioned period of time is maintained substantially constant during said entire period (c).

Abstract: A servicing composition which is sprayed from a container on or into a medical instrument e.g. a dental handpiece. The servicing composition includes an oil and propellant mixture for lubrication purposes but, for improved sterlizing purposes during subsequent hot-air heating and sterilizing of a medical instrument, an alcohol-aldehyde active substance combination in a proportion of 5 to 15% by weight is added to the mixture which is sprayed on the instrument. The preferred alcohol is isopropanol and the preferred aldehyde is formaldehyde or a succinic acid dialdehyde complex, and the preferred ratio of alcohol to aldehyde is 1:1.

Abstract: Biocidal gas sterilization methods and apparatus are disclosed in which goods are heated and moisturized prior to addition of the sterilizing gas utilizing repressurization after initial evacuation to provide drive power for the conditioning vapor and improve conditioning efficiency. After initial evacuation to a selected subatmospheric pressure level, the chamber is repressurized with a conditioning vapor comprising steam to a subatmospheric pressure level corresponding approximately to desired sterilizing temperature, then the chamber is held with evacuating and vapor injecting interrupted for a predetermined interval; this sequence of steps is repeated a selected number of times; and, conditioning to various sterilizing temperatures is available. Initial evacuation can be accompanied by intermittent injection of conditioning vapor. No chamber measurement of temperature or relative humidity is required for conditioning control and conditioning vapor injection is free of flow rate control requirements.

Abstract: A process for producing a citric acid soluble potassium silicate fertilizer comprises a step for kneading a mixture consisting essentially of potassium carbonate, fly ash, pulverized coal, other necessary starting materials and a caustic potash solution as a binder and then granulating the kneaded mixture, a step for drying the granulated product to a nearly absolutely dry state, and a step for calcining the dried granular product, whereby a chemical reaction takes place between the potassium and the silicon present in fly ash to convert them into a citric acid soluble potassium silicate.