Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4155372 | Portable siphon apparatus for removing concentrations of liquid from a gas pipeline An apparatus for removing concentrations of liquid from a natural gas pipeline comprising a tap valve mounted on the pipeline at the upper portion thereof so as to be in communication with the interior of the pipeline. A siphon apparatus is removably moun... | 05/22/1979 |
| 4150683 | Elimination of overflow of sewer systems A system for the elimination of overflow and back-up of sewers. A technique is provided for controlling flow of surface water in a combined sewer system, separate storm sewer, or the like, by regulating water flow into the system lateral lines from indivi... | 04/24/1979 |
| 4142542 | Pipeline buffer hydrocarbon from catalytic cracker effluent In the fractionation of hydrocarbon vapors from a catalytic cracking of a hydrocarbon oil producing cracked vapors including gases, cracked gasoline fraction, a light cycle oil and heavier, a pump-around fraction intermediate the gasoline fraction and sai... | 03/06/1979 |
| 4128105 | Automatic shut-off valve and method of operation thereof A valve having a closure element in the form of a tapered plug normally maintained by gravity on a vertical rod extending loosely into a bore in the plug. Flow of fluid through the valve in excess of a predetermined rate acts on a flow-responsive surface ... | 12/05/1978 |
| 4116208 | Method of and apparatus for pressure buffering all leak paths of a lined plug valve External and internal leakage of line media from a plug valve is prevented by the continuous application of a buffering media at all potential leak paths at pressure greater than the pressure of the line media.... | 09/26/1978 |
| 4117550 | Emulsifying system An emulsifying system for mixing accurate ratios of two or more liquids to form an emulsion. The liquids are preferably, but not exclusively, water and oil. A supply circuit delivers accurate mixtures of the two or more liquids. An emulsifier emulsifies t... | 09/26/1978 |
| 4108192 | Method for sewage removal from multi-household connections A method is provided for disposing of sewage from multiple household connections. A specific volume of sewage is first collected and then suctioned off by means of a vacuum, air being released into the vacuum pipe after the sewage. The method is character... | 08/22/1978 |
| 4103695 | Method of and device for controlling solenoid operated flow control means A solenoid operated fluid flow control valve having intrinsic linear or non-linear signal-to-output characteristics is controlled by a train of pulses produced by modifying a given analog signal with a dither signal having a waveform which is selected to ... | 08/01/1978 |
| 4104171 | Method for transporting waxy oils by pipeline A process for reducing the force required to restart the flow of wax-containing oil which has statically cooled to its pour point or below by inserting a plurality of yieldable fluid spacers in an oil column to divide the column into shorter hydraulically... | 08/01/1978 |
| 4091829 | Vertical liquid electrode employed in electrolytic cells A vertical liquid electrode is employed in an electrolytic cell used to manufacture chemical products by the electrolytic decomposition of an electrolyte. The cell incorporates the advantages of high current density, high current efficiency, low space req... | 05/30/1978 |
| 4088146 | Apparatus and method for sealing dampers An apparatus and method for sealing a flow control apparatus, such as a damper, suitable for controlling the flow of fluids in a conduit, especially high temperature gases in flue ducts. The damper includes a closure member which may be removed entirely f... | 05/09/1978 |
| 4074684 | Drain system for protecting buildings against flooding and method A system and method for protecting a building against flooding caused by the overflow of a liquid from a liquid drain line into the building to which the drain line is connected. A floor drain, connected to a drain line, is connected in a watertight manne... | 02/21/1978 |
| 4074687 | Method of and apparatus for use in generating liquid concentration gradients hydrostatically A hydrostatic gradient generator has a first liquid chamber and a second liquid chamber detachably attached to a base provided with a pressure regulator. The regulator has inlets, one for each chamber and in communication with the lower end thereof with t... | 02/21/1978 |
| 4057071 | Electrostatic charge reducer The electrostatic charge generated by nonconductive liquids flowing through a pipeline and other apparatus is reduced by exposing the liquid to gamma radiation. In a preferred arrangement, a capsule containing cobalt-60 is suspended in the flowing liquid ... | 11/08/1977 |
| 4052995 | Blowout preventer ram lock and locking method A new and improved ram lock for blowout preventer rams which permits locking of the ram at multiple and adjustable positions to compensate for wear on sealing elements of blowout preventer rams and increase sealing action of the ram without requiring sepa... | 10/11/1977 |
| 4037615 | Fluid control valve A fluid control valve which avoids wear, cavitation, and high noise level operation and yet is substantially non-clogging. The valve includes one or more nozzles through which fluid is passed, thereby producing a fluid jet, the fluid subsequently being sp... | 07/26/1977 |
| 4036254 | Container that can be displaced by rotary force The present invention relates to a new container that can be displaced by rotary force, consisting of a continuous sheet that assumes a form similar to a cylindrical surface, generated by a rectangle whose shorter sides have been substituted by convex sem... | 07/19/1977 |
| 4034773 | Method and apparatus for metering fluids A clamp and related method provides for a stable fluid flow rate through a flexible tubing. The clamp comprises a body having an anvil and a tube-constricting cam that cooperates with the anvil to pinch together diametrically opposed sections of the tubin... | 07/12/1977 |
| 4022687 | Method for the non-mechanical conveying of a collected quantity of liquid and apparatus for the performance of the method A method of, and apparatus for, the non-mechanical conveying of a collected quantity of liquid from a lower level to a higher level wherein through freeing of flow paths a quantity of a heavier liquid located at the higher level flows to the lower level a... | 05/10/1977 |
| 4014358 | Loading and unloading of combustible liquids on, and from tanker ships To load oil on tankers in which the tank holds are previously filled with water, for ballast, and to avoid the formation of explosive vapors, oil is introduced at a higher pressure level into the tank hold than the pressure required to displace the water,... | 03/29/1977 |
| 4006751 | Method and apparatus for rotating hydraulic control rods A method and an apparatus for imparting rotational movement to a control rod which is reciprocably inserted in a hydraulic circuit for controlling flows of fluid pressure from a pressure source to an actuator, wherein the operating fluid pressure is by-pa... | 02/08/1977 |
| 4003393 | Gel-like composition for use as a pig in a pipeline A gel-like mass is prepared comprising a highly gelled organic liquid which can be fluidized after its intended use. A hydrocarbon liquid is gelled with a metal salt of an aliphatic substituted orthophosphate ester to form a substantially self-sustaining ... | 01/18/1977 |
| 3999566 | Method and apparatus for discharging overboard excess water from hopper of hopper suction dredger or barge or scow A method and apparatus for discharging overboard the excess water from the hopper of a hopper suction dredger, barge or scow for removing the air bubbles contained in the discharged water and for preventing the air bubbles from being entrained into the di... | 12/28/1976 |
| 3991568 | Method for supplying unaerated hydraulic fluid to a work system A hydraulic circuit comprises a first tank elevated above a second tank and openly communicating therewith by a conduit adapted to continuously maintain the second tank at full capacity with a hydraulic fluid. The hydraulic fluid is pumped out of the seco... | 11/16/1976 |
| 3990464 | Heat-responsive duct closing method and apparatus A method and apparatus are disclosed for controlling the passage of air, smoke and noxious fumes through the heating and ventilating ducts of a building by means of a normally-collapsed, leak-proof bag which expands upon activation by smoke detection mean... | 11/09/1976 |
| 3985149 | Reversing flow valve Valve structure for reversing gas flow comprising a housing containing a pair of disposed cylinder chambers, a pair of disposed manifold chambers, inlet and outlet means provided in each pair of said cylinder and manifold chambers, piston means provided i... | 10/12/1976 |
| 3980093 | Timed pulsed fuel injection apparatus and method A timed pulsed fuel injection device which meters fuel continuously and distributes flow pulses to n nozzles through a rotary distributor pressure cascading device which totally isolates the metering event from variations and dynamic effects in the n inje... | 09/14/1976 |
| 3974844 | Valve A valve device particularly adapted for remote electrical operation at very low power levels has actuator means which are located outside a valve body but which are operatively connected to a valve member within the body through a flexible diaphragm which... | 08/17/1976 |
| 3970097 | Apparatus for measuring a volume of liquid and method of operating said apparatus A method of and apparatus for measuring or measuring-out a predetermined volume of a liquid flowing through a conduit or line, comprising a first conduit section containing a measurement path and at one end connected with the outlet conduit of a connectio... | 07/20/1976 |
| 3966693 | Method of and apparatus for continuously preparing a syrup of a monomer-polymer mixture A continuous mixing method and system for preparation of syrup employed as a starting material for continuously manufacturing plate products therefrom are disclosed. The syrup is prepared by a method in which at least one additive is incorporated into at ... | 06/29/1976 |
| 3949774 | Valve A valve for directing fluid under pressure in which a diverter vane when actuated causes the incoming fluid to move a sealing ball member from a first to a second position for opening or closing said valve.... | 04/13/1976 |
| 3945402 | Laminar flow pipe system A pipe system for conveying fluids having a straight pipe section with a Reynolds number exceeding 2200 by reason of the critical values of interior surface roughness of the pipe and of turbulence at the pipe section inlet, such values being defined, resp... | 03/23/1976 |
| 3945390 | Sealing system for shutoff elements A sealing system for a shutoff element having two substantially ring-shaped sealing elements forming at least two substantially ring-shaped sealing lines. A given one of the sealing elements is constructed as a thin-wall body which is elastically deformab... | 03/23/1976 |
| 3943775 | Method and apparatus for predicting the explosiveness of a volume containing inert gas and hydrocarbon vapors when mixed with air A method is disclosed for changing the inert gaseous content of a volume including hydrocarbon vapors to air without producing an explosive mixture. First a sample is obtained from the volume and then mixed with air to form a gas mixture. During the mixin... | 03/16/1976 |
| 3942560 | Safety stop for pressurized pipeline A method and apparatus for stopping a malfunctioning sealing device which is being propelled inside a pipeline by pneumatic pressure from being expelled out of the pipeline at the laybarge end. The apparatus comprises a plurality of normally retracted gri... | 03/09/1976 |
| 3941141 | Blowout preventer locking apparatus and method Locking apparatus for a ram type blowout preventer having a housing with a passageway through which a tubular member may pass; rams movable between a non-sealing position in the housing, in which the passageway is open, and a sealing position in which the... | 03/02/1976 |
| 3934599 | Submerged multiport diffusers for cooling water discharge A multiport diffuser for discharging condenser cooling water from thermal power plants and the like, the diffuser being adapted for installation at the bottom of a large body of water and being operable to discharge the condenser cooling water at that sub... | 01/27/1976 |
