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| Number | Title | Issue Date |
| 4024905 | Sealing device for a rotary heat exchanger, in particular for a gas turbine A sealing device located between a static surface of a gas turbine and a rotating heat exchanger surface is comprised of a plurality of outwardly opening U-shaped shoes sealingly connected to the static surface by a bellows and a plurality of U-shaped com... | 05/24/1977 |
| 4024906 | Rotary regenerative heat exchanger A rotary regenerative heat exchanger including a rotatable disc-like matrix having an end seal comprising an arcuate portion and a diametral or chord-wise portion each comprising a pressure plate engaging the adjacent end face of the matrix and an axially... | 05/24/1977 |
| 4024907 | Sealing plate support An adjusting means for rotary regenerative heat exchange apparatus by which a sealing plate that lies adjacent an end of a rotor containing a mass of heat absorbent element is adjusted axially to maintain a closely spaced relationship whereby there will b... | 05/24/1977 |
| 4024908 | Solar powered heat reclamation air conditioning system This invention relates to the air conditioning of a building complex comprised of one or more zones, utilizing solar insolation and terrestrial re-radiation to a maximum extent and supplemented by external energy as may be required. The principle of therm... | 05/24/1977 |
| 4024909 | Temperature responsive multi-function valve A multiple function valve for a compressor cooling liquid system. A cylindrical valve housing has an inlet at one end and an outlet at the other with a flow passage therethrough. A thermal valve controls the liquid flow between the inlet and outlet and di... | 05/24/1977 |
| 4024910 | Rock channel heat storage A heat or cold storage system utilizing a plurality of channels dug directly into the earth and filled with rocks which are used to absorb heat or cold for storage, a part of such storage being the rocks themselves and a (usually much larger) part being t... | 05/24/1977 |
| 4024911 | Pump shaft seal injection system Apparatus is described for supplying injection liquid to the primary coolant pump shaft seals in a pressurized water nuclear reactor system. The injection liquid is the resultant mixture of liquid extracted from both the upstream and downstream sides resp... | 05/24/1977 |
| 4024912 | Hydrogen generating system A partial oxidation process and system for burning crude oil with just enough oxygen in a gas generator to convert all of the carbon to carbon monoxide to form carbon monoxide and free hydrogen. Water or steam is added and the gas water reaction carried o... | 05/24/1977 |
| 4024913 | Well installations employing non-metallic lines, tubing casing and machinery A well installation, such as casing, tubing, a line movable in the well, and surface equipment, consists of high strength, light weight, non-metallic material.... | 05/24/1977 |
| 4024914 | Method of processing coal channels in underground coal gasification A method of processing recently bored channels when putting into operation an underground gas generator (underground gasifier), consisting, on the one hand, in forced air blowing and, on the other hand, in taking away hot gases, is characterized by determ... | 05/24/1977 |
| 4024915 | Recovery of viscous oil by unheated air injection, followed by in situ combustion Disclosed is a method for recovering low gravity, viscous petroleum including bitumen from a tar sand deposit by injecting unheated air followed by a soak period so that the viscous petroleum is conditioned by contact with the unheated air, followed by in... | 05/24/1977 |
| 4024916 | Borehole sealing method and apparatus A method and apparatus is described for sealing boreholes in the earth. The borehole is blocked at the sealing level, and a sealing apparatus capable of melting rock and earth is positioned in the borehole just above seal level. The apparatus is heated to... | 05/24/1977 |
| 4024917 | Calcium and magnesium hydroxide plugging process Channels in a water flood oil zone are plugged by injection of a hydroxide solution such as sodium hydroxide. The hydroxide solution is isolated from the connate water in the wellbore and vicinity of the wellbore by an isolation slug of water low in metal... | 05/24/1977 |
| 4024918 | Method of cementing a well A hydraulic cement slurry is disclosed comprising as parts by weight, a hydraulic cement; from 35 to about 65 parts of water per 100 parts of hydraulic cement and a sufficient quantity of both; polyethylene oxide and an alkali metal salt of the condensati... | 05/24/1977 |
| 4024919 | Technique for insulating a wellbore with silicate foam Disclosed herein is a method for thermally insulating a well. The well is insulated by boiling a solution containing silicate in contact with well tubing to form a coating of silicate on the tubing. A fluid substantially free of silicate also contacts the... | 05/24/1977 |
| 4024920 | Root crop harvester A root crop harvester having an annular root elevating conveyor supported for rotation about a horizontal axis and for elevating mud laden roots, a retaining mechanism to contain roots being elevated in the conveyor and a cleaning mechanism for removing m... | 05/24/1977 |
| 4024921 | Field breaking and row plowing implement A plow implement which completely plows and breaks the entire surface of a field being plowed in a single pass. This plow completely pulverizes the soil by means of upright cutting blades on double-opposing moldboard plows and single moldboard plows. Addi... | 05/24/1977 |
| 4024922 | Blade attachment with built-in air vent A blade attachment having a built-in air vent or duct to permit the flow of air to or from the engine space through the blade when in the raised position.... | 05/24/1977 |
| 4024923 | Rock bolting equipment Equipment for drilling holes in mine roofs for the purpose of rock bolting comprises an intermediate portion having mounted on and extending from it at one end a telescopic leg and mounted on and extending from it at the other end a drill rod, a hydraulic... | 05/24/1977 |
| 4024924 | Drilling rig with independent table structure An improved portable drilling rig for drilling deep boreholes in the earth, in which the table or working floor of the rig, on which the rotary table and draw works are supported, is on a separate framework supported on and attached to a structural frame ... | 05/24/1977 |
| 4024925 | Equipment handling apparatus Apparatus for manipulating equipment by selectively holding it in a gripping device mounted on a movable closed-loop belt. In the particular embodiment shown, a swivel and elevator combination is mounted on a brace which runs along a track in the derrick ... | 05/24/1977 |
| 4024926 | Energy system for self-propelled vehicles An energy system which provides the self-propulsion of a vehicle, wherein the vehicle includes wheels driven by a motor. As the wheels vibrate and bounce due to irregularities in the road surface, the vibrations and bouncing cause a piston to reciprocate ... | 05/24/1977 |
| 4024927 | Lowering device A lowering device including a unit which is adapted to slide downwardly at a controlled rate along a rope or other flexible line and which contains a circuitous passage through which the line extends to introduce friction between the line and the unit. In... | 05/24/1977 |
| 4024928 | Fire escape installation A fire escape unit for installation in buildings such as hospitals includes a hinged platform upon which a movable load such as a bed to be evacuated in an emergency is mounted. The hinged end of the platform is adjacent a hinged portion of an external wa... | 05/24/1977 |
| 4024929 | Ladder A portable ladder comprising a plurality of similar interfitting rail units which are modular in nature to facilitate assembly and disassembly of a ladder of any desired height. A plurality of similar rung units interfit with and interlock upon the rail u... | 05/24/1977 |
| 4024930 | Lubricating device and method A chain lubricating device in which lubricating fluid passes through an inlet line into a shaft to a piston chamber in a pump body where the lubricating fluid is then evacuated to discharge device located on a sprocket to which the pump body is attached, ... | 05/24/1977 |
| 4024931 | Disk brake assembly for vehicles A fully-lined disk brake assembly has two disk brake disks disposed in an annular channel of a brake housing. The brake housing rotates with the wheel and a pair of axial movable annular brake disks fixed against rotation with the wheel are disposed in th... | 05/24/1977 |
| 4024932 | Dual displacement disc brake caliper assembly There is provided an improved disc brake caliper assembly characterized by a caliper body having first and second legs and a member joining them, and having a cylindrical bore extending through one of the legs and dimensioned to receive a cup-shape piston... | 05/24/1977 |
| 4024933 | Brake and vehicle braking system The invention relates to an improved type of band brake, suitable for fitment to vehicle wheels, wherein the ends or fixings of the band intermesh and project past each other to be attached to anchorage points, movable or otherwise. Alternative systems an... | 05/24/1977 |
| 4024934 | Brake shoe The brake shoe of the present invention comprises a wear brake shoe body against which there has been cast a layer of metal consisting of hardenable material. By making the casting sufficiently thick the wear layer is prevented from losing its surface har... | 05/24/1977 |
| 4024935 | Power transmission in double-drum winch Double-drum winch has a power source, a transmission comprised of forward and reverse driving gear sets alternately actuated by hydraulically actuated clutches for changing the direction of rotation of the output shaft thereof and speed changing reduction... | 05/24/1977 |
| 4024936 | Combination vehicle service and parking brake A vehicle service and parking brake of the multiple oil disc configuration is included in the transmission housing of the vehicle. A plurality of interleaved braking discs arranged circumferentially about the output shaft of the transmission with one disc... | 05/24/1977 |
| 4024937 | Mechanical transmission brake A clutch pedal operated mechanical transmission brake for stopping the rotating elements in a transmission during shifting to reduce shifting time. The force applying the brake is limited since it is transmitted through resilient means to avoid overheatin... | 05/24/1977 |
| 4024938 | Clutch disk with plural dampers Clutch disk including at least two damping devices disposed in an energy transfer path between a friction lining support and a respective output member, one of the damping devices being effective over a given rotary angle by itself, and the other of the d... | 05/24/1977 |
| 4024939 | Wagon box having side and center delivery from one opening A gravity type box for a farm wagon, in which the box has a single opening and provides either side or center delivery of flowable material from the box. The opening in the box is in a lower portion thereof and is closed by a sliding door. Two chutes are ... | 05/24/1977 |
| 4024940 | Matrix printer having document thickness compensating device A matrix printer with a reciprocating carriage carries transversely moving spring biased printing head. A roller on the head runs on a resilient rail urged against the platen and can be retracted by pivoting the rail carrier under engagement of a second r... | 05/24/1977 |
| 4024941 | Dot matrix type serial printer A step motor is employed as a source of power for transverse feed of the printing head assembly with a combination of a slitted rotary disc secured to the motor output shaft and a stationary detector unit provided to control the motor operation and the do... | 05/24/1977 |
| 4024942 | Printer with a paper guide separate from the printer frame The printer has a printer frame, at least a printing head, a platen and a paper guide. The platen is formed integrally with a frame body in which the paper guide is incorporated so as to form an assembly separate from the printer frame, while the printing... | 05/24/1977 |
| 4024943 | Marking apparatus for stenographic typewriter or the like A marking apparatus for use with a mechanical symbol transcribing apparatus such as a stenographic typewriter comprises a lever having a marking means attached to one end of the lever for marking the web or tape carrying the record generated by the appara... | 05/24/1977 |
| 4024944 | Semiconductor slice prealignment system A system for the alignment and orientation of disc-like objects having transport means to move the object gently onto a turntable and against an arcuate resilient stop to a centered position on the turntable; an array of non-contact sensors is advanced to... | 05/24/1977 |
