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| Number | Title | Issue Date |
| 4449572 | Subterranean heating and cooling system A method and equipment for increasing the efficiency of a heat pump is the subject of the present invention. The method comprises providing an underground pathway for air travel, forcing a quantity of air through the pathway for operation of the heat pump... | 05/22/1984 |
| 4449573 | Regenerative heat exchangers A pack of heat transfer plates for regenerative heat exchangers comprising superimposed profiled plates. Each plate is provided with spaced parallel double ridges protruding symmetrically from both sides of the plate and extending obliquely relatively to ... | 05/22/1984 |
| 4449574 | Ventilation device A ventilation device including a heat exchanger having thermosensitive elements each placed, respectively at the inlet of an air-feeding passage, the inlet of an air-discharging passage and the outlet of the air-feeding passage and a display unit for show... | 05/22/1984 |
| 4449575 | Fluidized bed heating apparatus A heat exchanger for high temperature operation has a ceramic-walled chamber traversed by ceramic tubes and is capable of use inter alia in fluidised bed applications. The tubes are arranged in series of successive banks and to give a compact arrangement ... | 05/22/1984 |
| 4449576 | Heat-producing elements with heat pipes The PC-boards are contained in sealed enclosures, and serially effective heat pipe systems conduct thermal energy from the respective sources of development (e.g., power transmitters) to the top and from there to a heat pump system. Stacking such units an... | 05/22/1984 |
| 4449577 | Method of storing energy and system for carrying out this method In a method of storing energy in a two-vessel system, in which one vessel (1) containing a first substance (2) comprising two components, one of which is driven off from and is caused to become absorbed by the other component, respectively, at the supply ... | 05/22/1984 |
| 4449578 | Device for releasing heat A heat releasing device comprises an extruded aluminum main body including a horizontal wall for attaching heat emitting elements thereto and a vertical wall formed with a large number of gouged fins on at least one of its opposite sides, and a heat pipe ... | 05/22/1984 |
| 4449579 | Cooling apparatus for a closed housing A cooling apparatus for a housing which is provided with an opening at the upper part thereof, comprises a casing located on the upper part of the housing and including a bottom plate to close the opening and a chamber, a partition wall provided in the ca... | 05/22/1984 |
| 4449580 | Vertical wall elevated pressure heat dissipation system A heat dissipating system for cooling circuit chips or modules is described. The disclosed system includes circuit chips or modules which are vertically mounted, a gas at an elevated pressure being contained within an encased module for providing an enhan... | 05/22/1984 |
| 4449581 | Heat exchanger fin element with dog-bone type pattern of corrugations An improved fin element adapted for use in a fin and tube type heat exchanger core assembly, the improved fin element having a plurality of tube openings extending therethrough and having a "dog-bone" type pattern of corrugations extending substantially o... | 05/22/1984 |
| 4449582 | Sequenced production incorporating fluid rod pump A surface power unit for use on a subterranean well generates a series of pulses of pressurized fluid to a downhole pump. A sequencing mechanism connects and disconnects the surface power unit to each of a plurality of downhole pumps in a predetermined or... | 05/22/1984 |
| 4449583 | Well devices with annulus check valve and hydraulic by-pass Hanger apparatus for suporting pipe in a well, the apparatus including both an annulus check valve, via which communication is established with the annulus between the suspended pipe and surrounding casing, and a pressure fluid by-pass, via which communic... | 05/22/1984 |
| 4449584 | Inflatable flowing hole plug An inflatable flowing hole plug system including two fluid inflatable hole plugs, having an upper and a lower plug, a connector pipe for connecting these plugs and allowing fluid communication between them, a valve system for controlling the inflation of ... | 05/22/1984 |
| 4449585 | Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations A system and method for the controlled in situ heat processing of hydrocarbonaceous earth formations involves the application of electromagnetic energy at a selected frequency or at selected frequencies to a waveguide structure formed by electrodes boundi... | 05/22/1984 |
| 4449586 | Process for the recovery of hydrocarbons from oil shale A process for the recovery of hydrocarbonaceous oil from oil shale is disclosed. The process comprises: (a) heating the shale in the presence of a gas comprising hydrogen sulfide at subcritical conditions of said gas including a temperature from about 650... | 05/22/1984 |
| 4449587 | Surface controlled subsurface safety valves Lock-open mechanism for surface controlled subsurface safety valves. A lock-open sleeve can be positioned by wireline techniques to hold open the valve closure means for a subsurface safety valve. The operating tube of the safety valve can be used to retu... | 05/22/1984 |
| 4449588 | Fire extinguisher mounting unit A fire extinguisher mounting unit includes a cabinet, a frame and an access panel. The cabinet and frame are formed from a flame retardant, high impact plastic with the access panel being formed of a grooved acrylic sheet. The cabinet and frame have coope... | 05/22/1984 |
| 4449589 | Fire containment device and method A fire activated device which closes off a wall opening through which a plastic pipe or other fusible member extends. The device includes a back plate which is mounted to the wall with an opening in the plate in alignment with the wall opening which recei... | 05/22/1984 |
| 4449590 | Row marker arm assembly An agricultural row marker assembly is provided which includes a three-piece articulated arm and which is hydraulically actuated. The assembly has a base which is connectable to an agricultural tool bar. A second arm is pivotally mounted to the first arm ... | 05/22/1984 |
| 4449591 | Agricultural clean-out drag An agricultural clean-out drag particularly adapted to smooth out dikes, is mounted upon a boom. The drag is pivoted rearward of center so the front of the drag tends to hang down to bear against the ground. The drag is a shell, semi-circular in shape. Th... | 05/22/1984 |
| 4449592 | Automatic drill string section changer A mobile rock drill unit (10) is disclosed which automatically adds and removes drill string sections (26) from the drill string (24) of the drill unit. The drill unit includes a conventional drill motor (20) and a centralizer (40). A cylindrical storage ... | 05/22/1984 |
| 4449593 | Guide for sidewall coring bit assembly This relates to sidewall coring tools used to obtain samples of the formation through which the wellbore is drilled. It includes a housing which supports a guide means along which the drill bit, core barrel and motor can be moved to extend or retract the ... | 05/22/1984 |
| 4449594 | Method for obtaining pressurized core samples from underpressurized reservoirs The invention provides a method for obtaining a balanced, pressurized core sample from an underpressurized geological reservoir formation. A pressure core sampling well is drilled to a preselected depth and the bottom hole reservoir pressure therein is de... | 05/22/1984 |
| 4449595 | Method and apparatus for drilling a curved bore A reamer apparatus is adapted for use in combination with a radial whipstock assembly in drilling a curved bore in a subsurface formation at a predetermined angle of build. The reamer apparatus is comprised of a drill bit, at least one articulated joint o... | 05/22/1984 |
| 4449596 | Drilling of wells with top drive unit Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable up... | 05/22/1984 |
| 4449597 | Flexure weighing system A flexure weighing system comprising a split-beam assembly consisting of two beams centrally connected by a flexure linkage system. The split-beam assembly is also connected to a frame and to mounting studs which connect the outer, load-bearing ends of th... | 05/22/1984 |
| 4449598 | Method and apparatus for steering a vehicle with fixed-position wheels To control the turning direction of a vehicle having wheels with fixed axles or tracks at the respective sides of the vehicle, a steering wheel (1) is coupled to a wheel position transducer (11); a direction control lever (2) is coupled to a position tran... | 05/22/1984 |
| 4449599 | Finger walker for tube sheet A "finger walker" apparatus for remotely traversing a flat surface having a regular array of openings, such as the tube sheet of a nuclear steam generator. The apparatus has a rectangular base having four base fingers disposed in a rectangular pattern for... | 05/22/1984 |
| 4449600 | Mobile cranes or aerial lift platforms The invention relates to a mobile crane or aerial lift platform vehicle wherein at least one of the axles is extendable and wherein a cylindrical housing carries the extendable axle beam and a steering actuator is carried on at least one of the beams and ... | 05/22/1984 |
| 4449601 | Power-assisted steering gear assembly A power-assisted steering gear assembly in which displacement of a driven member or rack bar (1) on rotation of a driving member or pinion (3) through a steering input (4) is power assisted by means to which fluid pressure is supplied by a rotary valve (6... | 05/22/1984 |
| 4449602 | Rear suspension and storage box for a three-wheel motorcycle The invention provides an improved, independent swing-arm type suspension for three-wheel vehicles and includes a special yoke frame in which the rear axle is rigidly mounted, and cross rails for mounting a storage box thereon. The box is mounted directly... | 05/22/1984 |
| 4449603 | Suspension for a front, especially a transversely-mounted motor vehicle power plant A power plant is carried by a body on a three-point support. A front mount of three-point is formed by an energy-absorbing longitudinal support which cooperates with another mount of the support which is constructed as a slide bearing to absorb relative m... | 05/22/1984 |
| 4449604 | Four-wheel drive system for automotive vehicle A four-wheel drive system for a vehicle, comprising an engine having an output shaft rotatable about an axis in a lateral direction of the vehicle; a transmission gear unit including transmission input and output shafts parallel with the axis of rotation ... | 05/22/1984 |
| 4449605 | Device for preventing theft of motor vehicles Electric disabling circuits and components are provided for preventing theft or unauthorized use of motor vehicles. An auxiliary electrical switch is mounted on the housing of the ignition or starter key cylinder, and is connected to a fuse in the main el... | 05/22/1984 |
| 4449606 | Vehicle frame assembly A motor vehicle having a pair of front drive wheels and a rear steerable drive wheel mounted on a main frame. A sub-frame secured to the main frame intermediate the front and rear drive wheels carries an internal combustion engine and a pump assembly. The... | 05/22/1984 |
| 4449607 | Soundproofing for a gas pipe, in particular for the fan jet of a turbojet, and equipment for its fabrication Soundproof lining for a gas pipe, in particular for a turbojet fan jet, of the type including a multiplicity of thin, perforated panels juxtaposed by tiling, as well as an intermediate layer between the wall of the pipe and each of said panels to delimit ... | 05/22/1984 |
| 4449608 | Exhaust device for 2-cycle engine An exhaust device for a 2-cycle engine including an exhaust pipe having an expanded portion, and a curved outlet pipe inserted in the exhaust pipe in such a manner that its one end opening is disposed in a position in the expanded portion in which the out... | 05/22/1984 |
| 4449609 | Muffler for pneumatic apparatus A muffler for use with pneumatically powered apparatus has a cylindrical housing with air outlet slots, to the back of which there is a pipe-like damper cartridge. Within the cartridge there is an axially adjustable choke body whose choke head is guided w... | 05/22/1984 |
| 4449610 | Muffler for compressor for refrigerating apparatuses A muffler on the intake tube in a hermetically sealed compressor for refrigerating apparatuses in direct communication with the intake chamber located in the compressor cylinder head. The body of the muffler, preferably made of plastic material, consists ... | 05/22/1984 |
| 4449611 | Working platform The boom of a crane carries a pivot bearing for a second bearing which guides an elongated column. The upper or the lower end of the column supports a gallery which is turnable about its axis. The second bearing is pivotable about the horizontal axis of t... | 05/22/1984 |
