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| Number | Title | Issue Date |
| 4523132 | Centrally controlled lighting installation having a plurality of individually switched light points central switch elements and individual light switches therefor This invention relates to a lighting system having a plurality of individual light points or groups of individual light points which may be controlled by means of a central switch element, acting on all individual light points, whereby the function of the... | 06/11/1985 |
| 4412235 | Integrated opto-electronic relay using a semiconductor with persistent photoconductivity and a matrix of such relays Integrated opto-electronic relay of the type comprising a first semiconductor layer material having a persistent photoconductivity which is deposited on a major surface of an insulating substrate and is provided with two electrical contacts, a second semi... | 10/25/1983 |
| 4349347 | Wool scouring In wool scouring systems in which scouring liquor is continuously withdrawn from the scouring bowls for separation of solid contaminants and wool grease and then recycled to the bowls, improved separation of solids is achieved by adding a soluble silicate... | 09/14/1982 |
| 4237780 | Hydrocarbon fume disposal system particularly for use in paint spray booths A prefilter and a filter are made from wood chips, and carbonized wood chips respectively, and the filters are employed to remove hydrocarbon fumes generated in paint spray booths. The filters are subsequently incinerated and the heat of incineration may ... | 12/09/1980 |
| 4235707 | Method and apparatus for treating solid municipal refuse and other cellulose containing material Solid Municipal Waste is loaded, or loaded and compacted, into a pressure vessel which has means for very fast opening for discharging the contents. The pressure vessel is pressurized, with steam, or a compressed gas such as compressed air. The pressure v... | 11/25/1980 |
| 4227477 | Inflatable barge An air or surface deployable, inflatable, flexible wall, fluid holding, towable container having a hollow, generally tubular, flexible wall container, at least one closeable inlet and outlet for directing fluids into and out of the container, gas inflatab... | 10/14/1980 |
| 4227478 | Inflatable barge with compartmented interior An air or surface deployable inflatable, flexible wall, fluid holding barge is provided with a plurality of internal compartments and is provided about at least a portion of its outer skin with a gas inflatable barrier which improves the floatability of t... | 10/14/1980 |
| 4228400 | Conductometric gas analysis cell A conductometric gas analysis cell comprised of a porous Teflon membrane supporting interdigited electrodes separates a thin layer of deionized water from a gas phase to be analyzed. Volatile species in the gas phase pass through the membrane and increase... | 10/14/1980 |
| 4226023 | Portable device for determining physical qualities of pressurized container contents A portable device is provided for determining the physical qualities, such as amount, ullage, temperature, etc., of liquids in closed tanks containing the liquid and vapors of the liquid and/or an inert gas above the liquid without lowering the pressure o... | 10/07/1980 |
| 4224904 | Carburettor for air and liquid fuel under pressure for internal combustion engines A carburettor for air and liquid fuel under pressure for internal combustion engines has an air/fuel mixing chamber for mixing a controlled flow of air with gasoline and optionally methanol also. The fuel is disintegrated in the mixing chamber into fine d... | 09/30/1980 |
| 4224900 | Method for raising birds and apparatus for carrying out such method The galliformes such as chickens are raised in a housing having a plurality of intercommunicable rooms, each of the rooms, except the first two, comprising progressively larger areas and each of said rooms including the first two being provided with indep... | 09/30/1980 |
| 4221573 | Electrostatic precipitator rapping mechanism An electrostatic precipitator rapping system of the type which lifts weights and then allows the weights to fall to impact on precipitator elements to impart particulate-dislodging vibration thereto. The system includes a rotating drive shaft and a plural... | 09/09/1980 |
| 4219543 | Channel catfish virus disease vaccine and method of preparation thereof and method of immunization therewith The invention relates to a channel catfish virus vaccine comprising an attenuated strain or strains of channel catfish virus and a pharmaceutically acceptable diluent and a method of preparation thereof comprising the serial passage of a channel catfish v... | 08/26/1980 |
| 4218606 | Apparatus for perforating webs with high intensity, coherent radiation A system is provided for controlling the porosity of a web or film as perforated by high intensity, coherent radiation. In particular, there is included a laser for providing at least one beam of high intensity, coherent radiation that is directed onto a ... | 08/19/1980 |
| 4215080 | Liquid collecting device and use thereof in liquid-gas contacting apparatus A liquid collecting device comprises a liquid collecting trough, an inclined wall extending above the trough for directing generally vertically falling liquid into the trough and a panel composed of a plurality vertically directed intersecting walls posit... | 07/29/1980 |
| 4212383 | Drag conveyor and hopper assembly A shop assembled drag-type conveyor is provided with means for shortening its length and width and the conveyor is placed in assembled, but shortened form in a dust hopper of an electrostatic precipitator. When the conveyor is in place it is lengthened to... | 07/15/1980 |
| 4211261 | Fabrics for protective garments having strands of reflective materials Protective fabrics having a reflective surface are made of textile yarns, for example of wool, intermeshed with strands of reflective material, for example a metallized plastics film, a major proportion of the textile yarns being present in one face of th... | 07/08/1980 |
| 4206162 | Method for constructing concrete enclosures by combination of liftplate-slipform method A method for constructing concrete enclosures by means of casting two or three or more concrete plates one on top of the other, raising them o permanent or temporary structural posts and using the lifting motion of the plates to pour concrete in bottomles... | 06/03/1980 |
| 4203034 | Diffraction camera for imaging penetrating radiation A diffraction camera type imaging device for x-rays/gamma rays/neutrons employs at least one single crystal bent to conform to the radius of a sphere of radius 2R and ground to fit snugly on a Rowland sphere of radius R will, when rotated about an axis no... | 05/13/1980 |
| 4201256 | Sawdust collector The invention presented herein is a suction device for removing particles from the cutting area of a cutting tool via a duct arrangement including a large particle separator, a blower, a cyclone separator, a bypass means whereby a portion of the outlet ai... | 05/06/1980 |
| 4201495 | Protected aquatic sports area Aquatic sports zones are reclaimed or made by bounding non-shore areas of the zone with a plurality of end-to-end connected water impervious flotation boom sections, anchoring the formed boom in the bound zone, and attaching the ends of the boom to pier b... | 05/06/1980 |
| 4196802 | Product cooling and freezing system A system for cooling and freezing goods by cooled air is described, in which a series of large, rectangular plates carrying the goods pass over a first roller track into an ascending lift in a freezing room. The lift successively receives the plates and c... | 04/08/1980 |
| 4196605 | Tumbler pin-type cylinder lock with axial or axial and radial cylinder movement A tumbler pin-type cylinder lock wherein the lock cylinder is mounted for controlled axial or axial and radial movement relative to the lock cylinder housing characterized in that the key and the cylinder have cooperating surfaces for axially shifting the... | 04/08/1980 |
| 4193230 | Covering for building structures and related installation method The cover consists of rods 10-12, arranged perpendicularly to each other, to retain shaped plates B1 showing, next to the longitudinal edges thereof, coupling members 30, 34, 35, as well as anchoring members 24, 25, 50. Plates B1 are designed to retain co... | 03/18/1980 |
| 4191268 | Digital weighing machine A weighing machine wherein a mechanical change corresponding to weight of a body to be measured is taken out as an electric signal thereby to provide digital indication of the weight comprises a base body, a metering spring, a load supporting link associa... | 03/04/1980 |
| 4191793 | Method of forming a durable crease A durable crease is formed in a textile article by applying a flexible casting compound in a preformed crease using a non-rotary applicator in conjunction with a structure for guiding the applicator along the crease.... | 03/04/1980 |
| 4189308 | High voltage wetted parallel plate collecting electrode arrangement for an electrostatic precipitator A wetted parallel plate collecting electrode arrangement which increases the maximum electric field intensity possible without having water draining off the lower edges of the collecting electrodes forming small droplets which are accelerated towards the ... | 02/19/1980 |
| 4182264 | Apparatus for applying a crease retaining coating in a preformed crease A durable crease is formed in a textile article by applying a flexible casting compound in a preformed crease using a non-rotary applicator in conjunction with a structure for guiding the applicator along the crease. A screw driven piston within the appli... | 01/08/1980 |
| 4180047 | Above and below water and land pile cutting apparatus and method Above and below water and land pile cutting machine is provided having a main frame which is quadrangular in transverse cross-section and is shaped to receive in the center thereof the pile to be cut. The upper portion of the main frame carries extensible... | 12/25/1979 |
| 4178654 | Floor polishing machines The invention relates to floor polishing machines comprising a rotary brush drive means for the brush and means, such as a fan, for producing an updraught around the periphery of the brush to assist in removing particulate matter from a floor being polish... | 12/18/1979 |
| 4173046 | Absorptive patient underpad An absorptive and protective patient underpad is characterized by its ability to absorb substantial volumes of liquid, while maintaining a relatively dry top surface and the underpad is further characterized by a layer between a top cushioning layer and a... | 11/06/1979 |
| 4173247 | Chambered element for use in forming a roller screen A chambered element for use in forming a roller screen has a pair of longitudinally extending chambers separated by a common wall and means are provided by the wall-forming elements of one of the chambers for coupling a co-extending finishing member.... | 11/06/1979 |
| 4168143 | Process and apparatus for the purification and re-use of wool-scouring liquors A process for reducing the pollutant concentration of effluent liquor from wool-scouring operations. The suint concentration of scouring liquor is allowed to build up to a point where suspended dirt and grease particles are destabilized and hence more eff... | 09/18/1979 |
| 4163891 | Active gas plasma arc torch and a method of operating the same An active gas plasma arc torch and a method of operating the same, said torch including a rod-shaped cathode, a first gas passage formed around said cathode to feed a protecting gas or shielding gas, a second gas passage formed around said first gas passa... | 08/07/1979 |
| 4159883 | Cleaning pad A cleaning pad with an internal well for cleaning agent consists of at least one surface formed from a tufted textile fabric with the inner ends of the yarns forming the tufts in communication with the cleaning agent in the well, through yarn-containing o... | 07/03/1979 |
| 4151811 | Housing apparatus for animals Small animals and particularly the galliformes such as chickens are raised in a housing having a plurality of intercommunicable rooms, each of the rooms comprising progressively larger areas and each of said rooms being provided with independently control... | 05/01/1979 |
| 4124981 | Flotation means for barrier for water carried pollutants and method of making same A barrier for water carried pollutants comprises a series of end to end connectable boom sections containing a flotable material; fluid impervious connectors for the ends of the boom sections; flexible draft members and associated connectors for maintaini... | 11/14/1978 |
| 4121552 | Exhaust means for two cycle engines Two cycle internal combustion engines including a cylinder which is provided with one or more exhaust ports adapted to be closed by piston reciprocating in the cylinder. A valve member is provided in co-operation with the upper portion or upper one of the... | 10/24/1978 |
| 4114683 | Flexible tube type fluid-fluid heat exchanger A fluid-fluid heat exchanger comprises a plurality of flexible synthetic tubes extending in a curved path between a pair of headers with the tubes being maintained in a plurality of spaced apart superimposed layers by a plurality of spaced apart generally... | 09/19/1978 |
| 4112951 | Surgical clip A surgical clip, particularly adapted to produce necrosis in Fallopian tube tissue, consists of jaws hinged adjacent one end and a U-shaped spring which holds the jaws open in one position and exerts a closing pressure on the jaws in another position. Whe... | 09/12/1978 |
