"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4117672 | Exhaust reaction chamber system of engine An engine exhaust reaction chamber system having an inner exhaust reaction chamber surrounded by an outer exhaust reaction chamber, the system having a partition plate means for preventing exhaust flow bypass through the outer exhaust reaction chamber pos... | 10/03/1978 |
| 4117673 | Exhaust reaction assembly for internal combustion engine An exhaust reaction chamber assembly is provided for a four-cylinder in-line internal combustion engine having two pairs of exhaust ports, the ports in each pair being closely spaced. The assembly includes an exhaust manifold having two preliminary reacti... | 10/03/1978 |
| 4117674 | Engine and reactor connection system A connection system for a connection between an exhaust port of an internal combustion engine and an intake port of a thermal reactor for substantially purifying exhaust gases emitted from the engine. An engine casing has an exhaust passage accommodating ... | 10/03/1978 |
| 4117675 | Exhaust purifying system for internal combustion engines An exhaust purifying system for a multi-cylinder four-cycle internal combustion engine operating on an intake mixture leaner than stoichiometric employs first preliminary reaction chambers receiving exhaust gases from ports connected to cylinders having s... | 10/03/1978 |
| 4117676 | Incorporable hydromotive assembly An incorporable hydromotive assembly for a water storing dam or related engineered structure includes a siphon draft conduit with ascending-descending branches adapted to be archingly positioned over a water storing structure for conveying water through t... | 10/03/1978 |
| 4117677 | Stator for a torque converter The stator assembly of a torque converter includes a stator wheel, a one-way brake for connecting the stator wheel to a stator shaft, a thrust washer provided on each side of the one-way brake and a pair of snap rings fixed to the stator wheel for locatin... | 10/03/1978 |
| 4117678 | Self-contained hydraulic switch operator Self-contained simplified power apparatus for operating electric transmission line switches locally or remotely includes a rotary hydraulic actuator arranged for mechanical coupling to the line switch, a battery-powered reversible low voltage motor operat... | 10/03/1978 |
| 4117679 | Hot gas engine heater head A heater head is arranged about the central axis of a multiple cylinder hot gas turbine with a manifold ring of a diameter substantially smaller than the combustion chamber and connected to cylinders and regenerators by heat exchanger tubes extending upwa... | 10/03/1978 |
| 4117680 | Continuous loop shape memory effect heat engine Heat engine having a continuous band of thermally responsive shape memory material disposed in rolling engagement with one or more shafts. Below a transition temperature the band is ductile, but above that temperature the band tends to return abruptly to ... | 10/03/1978 |
| 4117681 | Tandem master cylinder with integral proportioning valve A tandem brake master cylinder has a proportioning valve between two pressure regions therein. The pressure in a second pressure region changes by a proportion of the change in a first pressure region at least over a part of the pressure range of the firs... | 10/03/1978 |
| 4117682 | Solar collector system A solar collector system uses a hexagonal field module of heliostatic mirrors with each heat receptor tower being located outside of its associated module. Each mirror includes a reflecting film held down electrostatically (for easy replacement) and prote... | 10/03/1978 |
| 4117683 | System and method for cooling hot water from industrial plant cooling use A system for thermal disposal and port improvement comprising an industrial plant constituting a source of hot cooling water which must be cooled located along a navigable river, lake or ocean, a body of water constituting a port in the vicinity of the in... | 10/03/1978 |
| 4117684 | Underground storage A method is provided for preventing the accidental discharge of hydrocarbon from an underground storage cavern by the use of a pressure-sensing element connected in a brine discharge tube near or above the ground with the pressure-sensing element being op... | 10/03/1978 |
| 4117685 | Method and means for irrigating soil and growing plants having varying water requirements A material having high water absorption and retention capacity is placed in a water impermeable trench beneath a top coversoil and water is supplied to the material for being transmitted by capillary action to the top soil. The material may be vitera. The... | 10/03/1978 |
| 4117686 | Fabric structures for earth retaining walls Low-cost and very effective retaining walls are constructed with stacked, generally rectangular, trays of steel wire fabric sheets, each with one end bent up to form a portion of the wall face. In constructing a wall, a first course of trays is set in pla... | 10/03/1978 |
| 4117687 | Mine roof supports A mine roof support comprises at least one hydraulically extensible chock leg connected at its upper end in articulated manner to a roof beam of the support, and connected at its lower end in articulated manner to a base member of the support, a pair of l... | 10/03/1978 |
| 4117688 | Apparatus for working under water A capsule for enclosing a sub-sea installation part is intended to be left water-filled and thus means for sensing oil or gas leaks from the part is disposed in the upper part of the capsule to where such leakage will float.... | 10/03/1978 |
| 4117689 | Submarine pipe trenching apparatus Submarine pipe trenching apparatus for digging a trench below submarine pipelines, wherein jet supports having nozzles for digging into the ground are supported for oscillatory movement on a frame, and wherein a crawler assembly is mounted on the pipe for... | 10/03/1978 |
| 4117690 | Compliant offshore structure The disclosure relates to a compliant platform for use in deep water. The platform comprises a structure including a working deck positioned above the water by a plurality of leg members which are rigidly connected to the working deck and are pinned into ... | 10/03/1978 |
| 4117691 | Floating offshore drilling platform A hollow generally circular horizontal float body is provided. The body tapers in thickness from its central portion of its outer periphery and includes upper and lower walls which are inclined downwardly and upwardly, respectively, from the central porti... | 10/03/1978 |
| 4117692 | Method and a system for producing and laying oil or gas pipelines on the sea bottom A method and system for producing and laying pipelines on the sea bottom. A continuous pipeline is produced on land near a quay and thereafter wound onto a floating pipeline storage reel. When a suitable pipeline length has been wound up onto the reel, th... | 10/03/1978 |
| 4117693 | Placing conduits on the sea floor by hauling and controlled immersion Process and equipment for laying on the ocean floor a pipeline for the transfer of liquids or gas. In this process, the pipeline is constructed in a staging or shallow water area where the pipe is equipped with separate buoyancy and handling means, the co... | 10/03/1978 |
| 4117694 | Rotatable refrigerated valve A ball valve for use in a vacuum pumping system has the passage through the valve element provided with a series of metal plates disposed for contact by gas passing through the valve when open. A refrigerant conduit entering the passage through the neck o... | 10/03/1978 |
| 4117695 | Thermodynamic method and device for carrying out the method A thermocentrifugal pumping device in which a gaseous medium is supplied to a rotor element rotating about an axis, is first conducted inside the rotor element mainly in a radial direction away from the axis of rotation through a compression duct in which... | 10/03/1978 |
| 4117696 | Heat pump Heat pump apparatus employing a continuous loop passageway containing a plurality of freely movable, unrestrained bodies. The bodies are accelerated around the passageway in one direction by isentropic expansion of a fluid between the bodies in an expande... | 10/03/1978 |
| 4117697 | Roll-in open-front frozen food refrigeration case A commercial refrigerator, having an open front display section and a rear storage section in which first air circulating fans draw air from the storage section and propells it through refrigeration coils to a bifurcated conduit for which directs at least... | 10/03/1978 |
| 4117698 | Refrigerated display A multi-curtain, open front refrigerated display case having unique energy saving capacity as a result of the combination of an attached, retractable night curtain specially located between the refrigerated air curtain and the adjacent warmer guard curtai... | 10/03/1978 |
| 4117699 | Calenders for the thermal treatment of laminar material A calender for the thermal treatment of laminar material utilizes a band of inert material carrying a design to be transferred to the laminar material. The calendar includes a cylindrical drum, and an endless belt or "messenger" is arranged to hug the sur... | 10/03/1978 |
| 4117700 | Locking arrangement for radios or the like A locking arrangement for preventing the theft of CB radios or the like from a mounting bracket in a vehicle including a locking device preventing access to the heads of the bolts which attach the radio to the bracket. The arrangement includes a hollow tu... | 10/03/1978 |
| 4117701 | Electro-thermal lock This invention relates to a locking device having a latching element movable between a locking position and an inoperative position, operating means for moving the latching element, a blocking member movable to a blocking position for mechanically prevent... | 10/03/1978 |
| 4117702 | Rolling machines for contouring tapered structural members Pinch and pyramid roll forming machines for contouring elongate, tapered structural members are disclosed. Each of the rolls of the pinch and pyramid roll forming machines is segmented and selected segments are mounted such that they are transversely posi... | 10/03/1978 |
| 4117703 | Apparatus for manufacturing extruded structural profiles from aluminum based metal scraps Aluminum or aluminum alloy scraps or wastes are broken into chips and extruded under a high temperature to produce extruded structural profiles. The method is characterized by the fact that the interior of the extruder is evacuated prior to or simultaneou... | 10/03/1978 |
| 4117704 | Method and apparatus for producing a bent angle piece from a sheet-metal A method and apparatus for producing a bent angle piece from a sheet-metal. The sheet-metal is shaped into a cylinder 1 split along a generating line so that the ends of the sheet-metal can be overlapping, a portion of the said cylinder is clamped on a su... | 10/03/1978 |
| 4117705 | Work reducing and pressure applying Reduction of bars or rods with reducing rolls of large diameter on arbors in which lateral pressure is applied to the reducing rolls to suppress rotation of the rolls relative to the arbor. The pressure is applied by an annular shoe on the arbor. The shoe... | 10/03/1978 |
| 4117706 | Remotely adjustable hydraulic pressure regulator A remotely adjustable back pressure relieving hydraulic regulator system particularly suitable for use on the work roll bending and balancing systems of a rolling mill. A normally open air operated valve and a normally closed air operated valve are modifi... | 10/03/1978 |
| 4117707 | Apparatus for shaping electrical coils for dynamoelectric machines An apparatus for shaping end turn portions of dynamoelectric machine coil bars. An end portion of an electrical coil bar is bent at a selected angle to a straight portion of the electrical coil bar. The bent, end portion of the coil bar is caused to lie a... | 10/03/1978 |
| 4117708 | Method of making housing cover and tube A method of forming a cup shaped housing member with an integral inlet tube extending radially to the axis of a cup shaped member from a flat strip of metallic material in progressive dies such that a tube is formed first to extend parallel to the axis of... | 10/03/1978 |
| 4117709 | Camber adjusting tool The tool disclosed includes a base for attachment to the wheel suspension system. Upright arms project from the tool base and carry an abutment assembly which is adjustable to support the end of different types of power cylinders in various operative rela... | 10/03/1978 |
| 4117710 | Blind riveting tools A blind riveting tool incorporates a jaw mechanism provided with a multi-part collet. The jaw mechanism includes a generally tubular member whose bore tapers towards that end of the mechanism through which enters the mandrel of a rivet. The internal surfa... | 10/03/1978 |
| 4117711 | Combination cutting and crimping tool A combination cutting and crimping tool arrangement is disclosed having a housing defining an anvil underlying a vertically movable mandrel cooperative with the anvil to crimp a tubular connector body onto a cable disposed in supporting relation on the an... | 10/03/1978 |