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| Number | Title | Issue Date |
| 4824406 | Electrical connectors An electrical connector for a multi-pin electric plug comprises a first member (1) having a leg (2) and a U-shaped recess (3) in which a second member (5) engages to grip an electrical conductor therebetween. The second member (5) is pivotally mounted on ... | 04/25/1989 |
| 4711453 | Dice pyramid tally board and game A one or more player board game and tally pieces. The board has a flat triangular playing surface divided into a triangular grid of 6 on a side to provide a total of 21 intersections corresponding to the absolute number of combinations on the faces of a p... | 12/08/1987 |
| 4662537 | Timed pill monitor and dispenser A portable pill storage and dispensing device adapted to record the time one or more pills are dispensed on demand or emits a time alarm as a reminder which events are recorded for future interrogation and where a novel pill-retaining cavity closure is se... | 05/05/1987 |
| 4657096 | Load bar weighing system A load measurement bar is attached to an isolated section of railroad track rail at two locations along the neutral axis of the rail. The bar assembly contains displacement sensors to measure the bending slope of the rail relative to the bar to provide a ... | 04/14/1987 |
| 4644699 | Transparent Jeep type vehicle door The construction according to the invention is applied to a utility vehicle such as an open vehicle having an open top such as a Jeep type vehicle or a large earth moving machine. To provide an enclosed operator's compartment it has been necessary to use ... | 02/24/1987 |
| 4643727 | Absorbant pad An absorbant pad having an intermediate plastic bubble layer covered on either side with a continuous layer of absorbant material wherein the bubble layer serves as a reservoir for a liquid that is siphoned around the edges of the bubble layer for storage... | 02/17/1987 |
| 4615913 | Multilayered chromium oxide bonded, hardened and densified coatings and method of making same This invention discloses a means of producing chromium oxide bonded coatings applied to metal or other suitable substrates in a layered, built-up manner and the products produced thereby.... | 10/07/1986 |
| 4540022 | Choke for drilling or production use A choke is provided having a stationary tubular flow nozzle with throttling ports formed through its side wall. A movable tubular throttling ring may be moved over the nozzle to restrict or close the ports. The required liquid-tight seal or shut-off is ob... | 09/10/1985 |
| 4525425 | Water and oil repellent metal oxide-organic combination coating systems and method of making same A hydrated metal oxide and/or hydroxide is applied by rubbing on to the surface of a substrate adapted to retain an oxide coating thereon and an organic compound is applied to the oxide coated substrate which is adapted to combine with the oxide coating t... | 06/25/1985 |
| 4455814 | Seed harvester A seed harvester is provided for harvesting seeds from a standing crop without cutting the crop. The harvester is particularly designed for harvesting grass seed. The harvester includes a header assembly for stripping from the crop, and a seed separator f... | 06/26/1984 |
| 4443972 | Overhead tilting door assembly An overhead tilting door assembly is provided, particularly for use in large buildings. The door assembly includes a door member having a quadrant member attached to each of its upper corners. Generally horizontal support members are provided on either si... | 04/24/1984 |
| 4441902 | Heat reclaiming method and apparatus Method and apparatus to extract heat by transferring heat from hot compressed refrigerant to a coolant, such as water, without exceeding preselected temperatures in the coolant and avoiding boiling in a water system by removing the coolant from direct or ... | 04/10/1984 |
| 4433639 | Application for spraying liquid chemical onto drill pipe The applicator is annular in configuration, having top and bottom walls formed of elastic material. The central openings through these walls are undersized, so that the walls seal around the string of pipe passing through the openings. The applicator is m... | 02/28/1984 |
| 4394808 | Fastener for attaching panel to stud The fastener comprises the combination of a gang nail plate and a clip. The plate is driven into the gypsum board panel to attach itself thereto. The clip connects with the plate and extends beyond its side edge. A screw or nail is driven through an apert... | 07/26/1983 |
| 4377074 | Economizer refrigeration cycle space heating and cooling system and process This invention relates to heating and cooling systems and more particularly to an improved system utilizing a Stirling Cycle engine heat pump in a refrigeration cycle.... | 03/22/1983 |
| 4372823 | Rechargeable electrical storage battery with zinc anode and aqueous alkaline electrolyte A battery system having a zinc containing anode in an alkaline electrolyte produced in a manner to substantially avoid dendritic growth and anode shape change with additives added to the electrolyte and/or anode to assist therein.... | 02/08/1983 |
| 4369808 | Disc-type check valve The valve comprises a bored housing formed of two segments. A discrete annular seat member is positioned on an annular shoulder formed in one segment. A guide member, comprising spaced apart legs and an apertured end wall is positioned on the seat member.... | 01/25/1983 |
| 4369005 | Air conveyor Air actuated conveyor for containers using air jets and utilizing the containers as valving means while providing a positive air pressure therebetween to maintain the containers separated during conveyance. The single container speed within the conveyor a... | 01/18/1983 |
| 4355249 | Direct current motor having outer rotor and inner stator The stator of the motor comprises a series of stator rings arranged in cylindrical fashion. Each stator ring is made up of a circular row of electromagnetic components, each component comprising a U-shaped core having two outwardly projecting poles and in... | 10/19/1982 |
| 4347022 | Air table system An air table system which utilizes air jet openings in the table surface of a pattern configuration to lift, support and direct movement of containers to feed same from a plurality of sources to fewer destinations or vice versa. With suitable cover config... | 08/31/1982 |
| 4343058 | Composite pneumatic-hydraulic system in a dockleveller installation A dockleveller installation is provided having a dockboard hinged for pivotal movement and a composite pneumatic-hydraulic system for pivoting the dockboard. The composite system includes a fluid-filled cylinder attached to the dockboard, a pressurized ai... | 08/10/1982 |
| 4315748 | Alphabetic device An alphabetic device is set forth to facilitate an initial reading process by providing additional discrimination cues to letters of traditional written languages. Letters of a written language are reproduced on a substrate such as paper, plastic etc. and... | 02/16/1982 |
| 4315828 | Water based window glass and chrome cleaner composition A water based cleaning composition including a major portion of water, a minor portion of a cleaning agent such as ammonium hydroxide or a lower alcohol such as isopropanal and a small portion of a polyethylene and alkoxy polyethylene glycol of high molec... | 02/16/1982 |
| 4307164 | Rechargeable electrical storage battery with zinc anode and aqueous alkaline electrolyte A battery system having a zinc containing anode in an alkaline electrolyte produced in a manner to substantially avoid dendritic growth and anode shape change with additives added to the electrolyte and/or anode to assist therein.... | 12/22/1981 |
| 4295527 | Process and device for the centering of casings as used for underground drilling A casing clamp and guide arrangement to permit ease of centering and securing of the next section of pipe casing to a downhole string comprising an elongated stable member having clamp means at either end with one clamp adapted to engage the top of the up... | 10/20/1981 |
| 4276997 | Dispensing apparatus for an aircraft anti-icing and biocidal fuel additive An additive metering and dispensing system for the addition of an additive to aircraft fuel which includes a variable volume regulator for measuring and dispensing the additive, the volume of which can be varied during a dispensing cycle.... | 07/07/1981 |
| 4271905 | Gaseous and solvent additives for steam injection for thermal recovery of bitumen from tar sands A process is provided for the recovery of hydrocarbons from a reservoir of heavy oil containing sands. An injection stream comprising steam, hydrocarbon diluent, and a gas which is gaseous at formation temperature and pressure and soluable in the formatio... | 06/09/1981 |
| 4271491 | Intruder alarm system The present invention relates to an intruder alarm system which compensates for background and other interfering noises. The system comprises dual amplifiers, one a main channel and the other a control channel wherein the control channel is responsive pri... | 06/02/1981 |
| 4270678 | Bread carrier The bread carrier comprises a plastic rectangular tray and a pair of generally U-shaped metal carrying bails pivotally connected across opposite ends of the tray. To accommodate a load, the pivotal connection between the bail and the tray is spaced inward... | 06/02/1981 |
| 4259083 | Production of metallurgical coke from oxidized caking coal A three step process is provided for producing high strength metallurgical coke from high volatile caking coals. Firstly, the caking coal is oxidized by heating the coal in an oxygen-containing atmosphere for a period of time. Secondly, the oxidized cakin... | 03/31/1981 |
| 4257136 | Hold-down device for dockleveller A releasable hold-down device is provided for use in a dockleveller wherein dock-raising springs are used to raise the dockboard. The hold-down device comprises a hydraulic cylinder assembly having the piston connected to the dockboard and the cylinder co... | 03/24/1981 |
| 4253783 | Air operated conveyor apparatus Air operated material handling equipment for use with similar articles which may be received separately, or en masse from intermediate bulk storage with apparatus for dispensing the articles for movement along one or more guided paths in an organized seri... | 03/03/1981 |
| 4251693 | Fixed impulse generator for hook switch flash A hook switch flash generator to provide consistent, electronically controlled and timed flash signals independent of human variables. A user operated button switch is closed to initiate transmission of a predetermined duration pulse recognizable by the c... | 02/17/1981 |
| 4246025 | Beneficiation process for oxidized iron ore A chlorine source is provided in a reactor in combination with a ground oxidized ore and a particulate carbonaceous reductant. The amount of chlorine provided is significantly less than the stoichiometric requirements for reaction with the total iron cont... | 01/20/1981 |
| 4237977 | Removal of water from gas well borehole with solid foaming agent A process for producing a solid foaming agent, and a process for using the foaming agent for the removal of water from flooded gas wells is provided. The foaming agent is formed by first combining a water soluable, nonionic polyethoxylated surfactant with... | 12/09/1980 |
| 4237980 | Check valve for fluid-producing wells A check valve is provided for use in the tubing string of a fluid producing well. The check valve is removably seated within the restricted diameter of a seating nipple in the tubing string. Resilient holddown means at the base of the valve are provided f... | 12/09/1980 |
| 4213873 | Water based window, glass and chrome cleaner composition A water based cleaning composition including a major portion of water, a minor portion of a cleaning agent such as ammonium hydroxide or a lower alcohol such as isoproponal and a small portion of a polyethylene glycol of high molecular weight which not on... | 07/22/1980 |
| 4209033 | Vacuum breaker valve Sill cock having novel vacuum breaking stem packing assembly to break a vacuum between the shut-off valve and the sill cock. A novel vacuum breaker shut-off valve is also provided adapted to close upon the presence of a vacuum or reduced pressure in the m... | 06/24/1980 |
| 4207391 | Rechargeable electrical storage battery with zinc anode and aqueous alkaline electrolyte A battery system having a zinc containing anode in an alkaline electrolyte produced in a manner to substantially avoid dendritic growth and anode shape change with additives added to the electrolyte and/or anode to assist therein.... | 06/10/1980 |
| 4206777 | Vacuum breaker valve and stem packing assembly Sill cock having novel vacuum breaking stem packing assembly to break vacuum between the shutoff valve and the cock and a vacuum breaker shut off valve to close same upon encountering a vacuum or reduced pressure in the main.... | 06/10/1980 |
