Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4709953 | Roll handling apparatus Apparatus for safely lifting a roll of material having a horizontal eye is disclosed. The apparatus consists of a tong having horizontally relatively movable lifting legs which each include lifting decks to engage the roll's eye. Sliding members are provi... | 12/01/1987 |
| 4707279 | Self-seating valve with compressive release A self-seating valve with compressive release is provided. The invention includes a tubular valve body which is capable of elastic axial compression by means of the compression of circumferential compression rings. A diametrical bar supports a longitudina... | 11/17/1987 |
| 4705450 | Single engine excavator with remote control A material handling vehicle is provided which includes a lower truck chassis and an upper material handling structure pivotally supported by the lower chassis, all functions of which vehicle are driven by a single engine. The material handling vehicle is ... | 11/10/1987 |
| 4693322 | Pneumatic hammer Apparatus for pneumatically stamping identifying impressions on a workpiece is provided. The apparatus includes a double-acting air cylinder having a hollow piston rod. An impact piston is provided inside the barrel formed inside the piston rod to, altern... | 09/15/1987 |
| 4692216 | Method for controlling heat input into a coke oven Method of controlling heat input into a coke oven to obtain a desired temperature of the coke mass of the oven at the time of pushing comprising (1) determine the moisture content and heat of carbonization of a sample of coal scheduled for transfer into t... | 09/08/1987 |
| 4687215 | Apparatus for transporting wheeled carriers An apparatus for simultaneously transporting a plurality of wheeled carriers is provided. First and second end frames are interconnected by central spine elements from which extend a plurality of arms which define discrete cells configured to accept the i... | 08/18/1987 |
| 4678171 | Positioning lift for surgical table A movable member mounted in an opening in the back support section of a multisectioned surgical table. The movable member is so pivotally connected to a portion of the perimeter of the opening that the movable member can assume a range of articulated posi... | 07/07/1987 |
| 4652284 | Anti-splash drain fixture Apparatus is provided for allowing the draining of a liquid containing an entrained gas from a discharge tube, the separation of the gas from the liquid and the directing of the liquid to a drain pipe. The apparatus includes a vertical elongated conduit m... | 03/24/1987 |
| 4648604 | Elimination draw poker game A method for playing draw poker in which cards used in previous hands are retired from play and a time limit is imposed for completing a predetermined number of hands.... | 03/10/1987 |
| 4642165 | Method of vaporizing multicomponent liquids A method of vaporizing a multicomponent liquid, such as a hydrogen peroxide and water solution, for injection into a vacuum chamber including the steps of metering successive predetermined increments of the liquid at a predetermined rate onto a heated sur... | 02/10/1987 |
| 4639143 | Extrusion screw An extruder of the variety including a body having a cylindrical bore therethrough, and a shaft rotatably supported within the bore. The shaft includes at least a first helical flight means defining a main channel. The shaft is divided along its length in... | 01/27/1987 |
| 4630414 | Cellular steel decking Cellular steel flooring is provided which includes corrugated steel decking and separately applied cover plates which establish a lengthwise cell in cooperation with a valley and the two connecting sloping sidewalls. The resulting cellular steel decking p... | 12/23/1986 |
| 4600979 | Passive cooling system for a luminaire Apparatus is provided for removing the heat from within a generally sealed enclosure having a heat generating means disposed therein, such as a surgical light. The enclosure of the light includes a slightly domed top, a generally cylindrical side wall and... | 07/15/1986 |
| 4536194 | System for controlling the composition of a fuel gas produced by a jet compressor system A method of providing a mixture of lean and rich gas of a desired composition by means of a jet compressor system comprising two or more jet compressors comprising: (1) adjusting the jet compressor system being used to mix the lean and rich gas to provide... | 08/20/1985 |
| 4533439 | Apparatus and method of using a fuel gas regulator for a coke oven battery Method and apparatus for the regulation of the flow of fuel gas in the fuel gas supply duct of a heating wall of a coke oven to assure uniform heat distribution in the oven are provided. The regulating means consists of a thin plate having a similar shape... | 08/06/1985 |
| 4526038 | Cross-flow ultrasonic transducer head Apparatus to prevent the deposition of dirt and fine air bubbles on the flat end of a piezo-electrical crystal transducer that emits and receives ultrasonic waves consists of a body having an internal passage that angularly directs water in sweeping relat... | 07/02/1985 |
| 4482865 | Apparatus for the automatic inducement of a magnetic field in an elongated article under test An automatic overhead trolley-driven magnetizing system for inducing a residual magnetic field in seamless steel pipe in order to detect non-visual defects therein by the magnetic particle inspection method is described. The magnetizing system consists of... | 11/13/1984 |
| 4464184 | Apparatus and method for the control of the precoating of an effluent filtration baghouse utilizing clean side pressure measurement A method and apparatus for the control of the precoating process employed in an effluent filtration baghouse are described. An electrically operated pressure switch is provided to indicate the precoat duct vacuum pressure by measuring the vacuum pressure ... | 08/07/1984 |
| 4451360 | Device for removal of magnetic particles from a magnetic separator An apparatus for removing adherent magnetically attracted particles from the surface of the magnetic head pulley of the conveyor belt used in a dry magnetic separator without disrupting the magnetic separation process. An array of magnetically soft iron t... | 05/29/1984 |
| 4415013 | Repair for the tire separations A method for repairing heavy-duty tires which have experienced separation at the intersection between the tread and sidewall is provided. The method comprises the steps of removing the loose rubber surrounding the separated area, buffing the area to a smo... | 11/15/1983 |
| 4397448 | Fence post-top rail connector A connector for affixing the top rail of a wire fabric fence to the fence posts thereof is described. The connector consists of a resilient metallic strip fabricated into a loop portion from which depend leg portions which extend inward, substantially par... | 08/09/1983 |
| 4342215 | Nail machine wire feed mechanism A wire feed mechanism for use in conjunction with a nail forming machine. The wire feed includes a wire clamping device connected through appropriate linkages to a reciprocating hammerslide located within the nail machine. The hammerslide is movable betwe... | 08/03/1982 |
| 4342487 | Automatic roof bolting drill retention apparatus A drill steel support assembly for a mining roof bolting machine is presented. The assembly is utilized for retaining and guiding a drill steel on a roof bolting machine during the collaring of the drill steel in the mine roof. Once collared, the drill st... | 08/03/1982 |
