Abstract: A lightweight, portable device maintains at a warm temperature a quantity of animal scent, particularly animal urine, which is used by hunters to attract animals. A battery operated heating element surrounding a chamber which removably receives a vial of the liquid scent maintains the temperature of the liquid above freezing when the device is used outdoors in cold weather, and preferably heats the scent to a temperature which closely imitates the fresh presence of live deer. The device includes a cap having two oppositely oriented threaded sections, one of the which when received on a housing of the device closes the chamber containing the liquid while the other when received on the housing enables vent openings formed in the cap to dissipate odors which emanate from the vial. Batteries of the device are located within an enlarged base and thus provide a low center of gravity, which allows the device to remain in a stable, upright orientation on the ground when desired.

Abstract: Apparatus for applying a fish attracting fluid to fishing tackle is disclosed. The apparatus includes a box having an upper portion with an opening including an upper segment of resilient, absorbent material attached therein. The box has a lower portion with an opening including a lower segment of resilient absorbent material attached therein. The segments are of such thickness as to contact one another when the box is closed. The box is also provided with an offset hinge pin for the proper positioning of the box portions during opening and closing. The segments are provided with a fish attracting fluid so that when the box is closed with fishing tackle therein, the fishing tackle will be coated with the fluid. Also disclosed is the method of coating fishing tackle with fish attracting fluid as through the use of such box.

Abstract: The present invention is directed to a novel device for reducing the friction which is generated when a trawl net is dragged along the ocean bottom. A trawl net, as it is being dragged in a forwardly direction, comes in contact with not only debris on the ocean floor but also with the substrate comprising the ocean floor, thus increasing the friction being applied to the net, which reduces the life of the net. The novel device contemplated herein is a device which is generally spherical in configuration, although somewhat elongated in one direction resembling a bobbin. The device is made of at least two parts which can be easily placed on the net webs or net lines, preferably at a rearwardly location with respect to the forward movement of the net. As the net is being pulled, the device, which is in contact with the ocean bottom, rolls, thereby reducing the contact between the net and the ocean bottom and also maintaining the net at a distance certain from the ocean bottom.

Abstract: A trigger structure for use in a fishing rod comprises: a mounting portion mounted on a grip portion of the fishing rod; and a trigger portion which perpendicularly projects from the above mounting portion so as to be bendable when such trigger portion is subjected to an outer forcible force. The trigger portion of the trigger structure is an injection molding product made of plastic so as to give an excellent touch feeling, whereby there is no fear that such trigger portion does some damages to the user's finger and hand even when such trigger portion hits the user in his finger and hand strongly at time when he performs his rapid hand changing operation in the fishing rod.

Abstract: A fishing lure including a jig and a body. The body may be formed in the shape of any suitable bait, for example, a craw-dad, and includes a top wall and side walls to define a channel for receiving the jig. To maintain the body in a horizontal position during movement through the water, a shank having a central horizontal portion; a front upwardly inclined portion; and a rear downwardly inclined portion is provided. A novel keeper formed from lead ballast is provided for holding the body to the jig. The keeper works in conjunction with the jig eye, which protrudes through the front portion of the body for affixing the body to the jig. An upwardly curved hook, hidden beneath the body, engages the body to act as a third keeper. The front of the body may be provided with a spring-like flap for skipping the lure over stones and other foreign objects.

Abstract: A fishing lure is described which lure is constructed of a treated sheepskin material which treatment keeps the sheepskin soft and flexible when the lure is placed in water even though it has been previously used an allowed to dry. The lure is shaped according to the present invention in a way which is especially effective in catching fish. Further, a tubular sleeve is used in combination with the hook and the lure body to hold the lure body in the proper effective position, and a clasp is used for mounting the lure body to a weighted head secured to the hook.

Abstract: A method of potting plants and a plant potting machine (1) for placing potting mix and a plant in a potting container in which the machine includes means to support in rotable manner a bracket (7) to hold a container through a series of stations with means to both deliver and vibrate the container incorporated with the machine, the method of including the step of locating the plant with its roots in the container prior to or during the filling of the container with potting mix and vibrating the container during the filling process.

Abstract: A machine for laying shelter film along a planting row supports the film roll at least in part on wheels disposed to press the opposite edges of the film into furrows in the ground. The film is thus carried by the wheels from the roll to the ground. A cantilever member is mounted centrally and ahead of the wheels to temporarily support the film when it is deposited over a series of arches.

Abstract: Ripening pineapple fruit in the field is treated with effective amounts of an aqueous solution of a nonionic surfactant to inhibit infection of the pineapple fruit by disease-causing microorganisms. Microbial spoilage is reduced, and thus the quality of pineapple fruit for the fresh market is improved. Additionally, disease blemishes in pineapple fruits for canning are reduced, resulting in increased pineapple solids recovery.

Abstract: Improved method and apparatus for plant culture, particularly in arid regions. A culture bed is defined by moisture-proof walls and is charged with soil. Pipes disposed at the bottom of the culture bed supply moisture to plants growing therein, the amount of moisture being controlled to maintain the upper boundary of the capillary penetration zone a distance below the soil surface.

Abstract: A cover for a flower pot, especially a hanging pot, which is capable of covering the sides and bottom of the pot. When watering the plant, any surplus water is collected within the cover, which is then drained through a tube projecting from the bottom thereof. The cover may be provided with a water absorbent liner, as well as a wick which is positioned to extend from the bottom of the cover into the soil within the pot. The cover may come in different decorator colors and may also be used on a flower pot which is positioned on a table. A plurality of covers and liners along with material for wicks and needle-like pulling tools may be packaged in the form of an individual kit.

Abstract: A burglar bar assembly mountable over a window or door opening in a building may be quickly manually released from an interior portion of the building. The manual release mechanism is actuatable without a need for keys, or the like, so as to allow a building occupant to escape through the window or door opening in an emergency situation.

Abstract: A window guide arrangement for a framed vehicle door assembly includes pairs of stationary side-by-side guide tracks carried by the door thereof and a bi-pivoted guide means having integral living hinges slidably contained in the tracks and connected with the window, the guide arrangement being operable to guide the movement of the window and to position the window when in its closed position so as to be substantially flush with the exterior of the door assembly at its belt line and the bi-pivoted guide means including an integral noise abatement baffle and an interior close out seal.

Abstract: Apparatus for abrading the surface of a workpiece in a manner level with a selected reference plane, e.g. a horizontal reference plane. The apparatus includes a wheeled carriage to which is connected an elongated boom. Extending downward from the end of the boom is an abrading element which is mounted for rotation in a selected reference plane which is preferably horizontal, and which is prevented form tilting in a longitudinal or transverse direction relative to the boom. The boom is connected to the carriage by an adjusting mechanism which allows the carriage end of the boom to be raised or lowered so that the surface of the abrading element may be brought to a position which corresponds to the selected reference plane.

Abstract: Automatic electrode shaping apparatus comprising a grinding tool adapted to come in contact with the points of electrode tips attached to the tips of arms of a welding machine for grinding said points, a judging device for judging the shaping condition of said points of the electrode tips, and a tip holding mechanism for holding the electrode tips with the grinding tool coming in contact with the electrode tips, the grinding tool and the judging device being movable with respect to the electrode tips and alternatively located in the position opposite to the electrode tips.According to the automatic electrode shaping apparatus, the electrode tips are held by the tip holding mechanism, and ground and shaped with the grinding tool in a stable manner. After the electrode tips have been shaped, the shaping condition of the electrode tips can be judged whether it is good or bad, without moving the electrode tips.

Abstract: In an apparatus for the grinding or polishing of workpieces, particularly metallographic samples, the grinding or polishing pressure is transmitted to the workpiece through a deformable transmission link which is strained by strain gauges of an activating member, which is then immobilized. The apparatus comprises means for sensing the elastic deformation of the transmission link and changes of that deformation during the progress of the process, whereby a simultaneous measurement of the grinding or polishing pressure and the depth of the layer of material removed by the grinding or polishing is obtained.

Abstract: A process and apparatus are disclosed for recovering and cleaning contaminated particulate abrasives blast media for reuse. A first vacuum system vacuums up spent contaminated blast media from a work site and entrains it in an airstream. The entrained contaminated media is then projected onto a target surface that absorbs momentum of the contaminated media such that media and contaminates at least equal in weight to the media drop out of air suspension while contaminates lighter in weight than the media substantially remain in suspension. The contaminated media that drops out of entrainment falls into a rotating drum having apertured cylindrical wall surfaces that permit blast media to pass therethrough while retaining oversized contaminates. The rotating apertured drum is contained within a housing that is evacuated to substantially remove the lighter weight contaminates from the housing and, hence, from the media.

Abstract: A device for spraying particulate material, comprises a nozzle (10) having an inlet for receiving particulate material under pressure and an outlet for discharging the material, and a housing (8) surrounding at least the outlet portion of the nozzle (10). Passages (30) defined between the housing (8) and the nozzle (10) having inlets to receive a wet fluid under pressure and terminate in an annular outlet zone (50) surrounding the outlet portion of the nozzle (10) whereby the particulate material discharged from the nozzle is surrounded by an annular stream of fluid discharged from the passages. The device may be used for sand blasting, with dry sand being discharged from the nozzle, (10), the sand being enveloped within an annular stream of water discharged from the outlet zone (50) in order to minimize dust formation.

Abstract: A liquid support system for separating a building structure from its supporting foundation wall includes a trough-like member extending around the top surface of the foundation wall, an inverted U-shaped slide member slideably disposed over the trough member and a flexible but non-expandable liquid-filled conduit seated in the channel confined between the trough member and the slide member such that the weight of the building structure can be supported by the liquid-filled conduit. The conduit is divided into segments which can be separated into various sections whereby various sections can be maintained under higher liquid pressure than other segments to support the heavier portions of the building structure.

Abstract: To prevent the vibrations caused by wind in suspended-roof supporting frameworks, the suspended-roof supporting framework has main chains composed of bar-shaped main links of relatively small cross section. The ends of these main links are connected to one another at joint centers, and the ends of the main chains are fastened to a stationary perimeter structure. The joint centers of adjacent main chains are connected by means of supplemental links of larger cross section. The supplemental links are larger in cross section than the main links, so they form supplemental chains which are heavier than the main chains. The supplemental chains extend obliquely relative to the main chains, and their ends are fastened to the perimeter structure.

Abstract: An improved and more versatile space divider system for open office interiors includes as a major component a structure beam or spine supported at each end by vertically adjustable legs. Feet on the legs provide the required lateral stability to support or hang components such as work surfaces, filing systems and the like from the beam. Each beam includes two enclosed electrical ducts on the top thereof superjacent work surface height, such ducts being provided for power and communication wiring respectively, with the latter being above the former and laterally enlarged. The power wiring duct is prewired with outlets on both sides, while the communications wiring duct includes both lateral and top access. The legs have a smooth exterior surface yet permit beams to be connected thereto at a wide variety of angles. Enclosures or fillets for the beams and legs permit the ducts to pass through the legs fully enclosed.

Abstract: A hollow concrete block wall, and method of making same, are disclosed. A first course of hollow concrete blocks are laid end-to-end abutting relationship, a pair of separate redwood strips are placed on top of the wall, a second course of hollow concrete blocks are laid on the redwood strips, with the strips serving to align the second hollow concrete block course at the bottom surface thereof, a second pair of redwood strips are laid on top of the second course of blocks, and so forth until the wall is in place. Thereafter, pourable settable cementitious material is introduced into the hollow spaces inside the concrete blocks, as well as the area between each pair of redwood strips, and the cementitious material permitted to set. The redwood strips maintain the wall in the dry stack condition by a friction bond between the redwood strips and the concrete blocks until the cementitious material has set.

Abstract: A collapsible, or deployable, truss unit to be combined with a multiplicity of other similar units for the construction of, typically, medium to large size frameworks for use in outer space. Generally of boxlike shape when deployed, the truss unit comprises two opposite end truss assemblies of rectangular or quadrilateral shape, and an intermediate truss assembly of similar shape interposed therebetween and linked thereto via additional truss members. Two opposite ones of the four truss members of the intermediate truss assembly have each a movable hinge assembly mounted thereto for longitudinal displacement. Each movable hinge assembly has two diagonal truss members pivoted thereto each at one end, the other ends of the diagonal truss members being pivoted to the respective end truss assemblies.

Abstract: A grating bar for floor mats. The bar has two legs that form the walls of a U-shaped profiled strip. Cleaning elements are disposed between these walls, and the latter are provided with openings for holding elements. Provided on the outer surfaces of the walls, between the openings and the free ends of the legs, are projections that can be united to form an element that extends over the entire length of the bar.

Abstract: Apparatus for and a method of inserting sheet materials, such as old newspapers, into paper bags, such as used grocery sacks, for storage, which includes a plurality of thin rigid dividers inserted into and repositionable in the sack so that material being inserted slides along the dividers, instead of along the insides of the sack. A separate base and tube may be used to support and strengthen the sack while the insertion is being accomplished.

Abstract: A machine for automatic sealing of sterile bottles in a bottle filling plant is proved enabling high capacity. The machine has fluid powered means to axially displace a die forming means between a position above said bottle and a position surrounding a cap in the bottle mouth. Telescopically displaceable means are also provided to close said die forming means radially around the neck of said bottle and, after execution of said sealing, to open said die forming means radially. The machine also includes telescopically displaceable plunger means to apply axial pressure towards the top of the cap pressing it down into the die forming tool against the action of a resilient plug in the mouth of the bottle.

Abstract: A method and apparatus are disclosed for forming a package of alternately inverted containers, wherein an array of the containers is formed with adjacent containers relatively inverted. In accordance with the invention, a supply of containers is formed into first and second product streams, with each of the containers in the second product stream inverted. The containers are presented by an indexing mechanism to a reciprocating diverting gate mechanism, wherein the forward-most container of each product stream is diverted. In this manner, a pair of further product streams are formed, wherein the containers of each stream are alternately inverted. The containers are subsequently collated for heat-shrink packaging.

Abstract: A method of making a saddle wherein the upper saddle coverings including the seat, backs and upper flaps are pressed from a single sheet member, the underside saddle coverings including the panel, lining and underflaps also being pressed from a single sheet member, the upper and lower pressed saddle coverings being secured to a saddle tree placed between the coverings and the saddle completed by stitching the upper and lower pressed saddle coverings together around the periphery of the cantle and the periphery of the seat. The saddle coverings are formed from a composite sheet material composed of a cloth-covered foam.

Abstract: A mower comprising at least one mowing unit 1 provided with a cutting bar 2 on the upper face 8 of which are placed a plurality of cutting elements 5, 6, and 7 mounted to rotate around axes 15 directed upwardly with the aid of a plurality of shafts 9, 10, and 11 guided in rotation in a housing 4 of the cutting bar 2. A support structure 3 is placed at a certain distance above the cutting bar 2 and is connected to the cutting bar 2. The support structure 3 includes a beam 28 extending crosswise to the direction of advance of the mowing unit during use. The beam 28 is connected to a strut 29 extending downwardly in the direction of a cutting element 7. The strut 29 is connected to the shaft 11 by a bearing 132. The bearing 132 includes a cylindrical guide 31, 32 the axis of which is merged with the axis 15 of the shaft 11. A connecting device 35 connects the strut 29 to the beam 28.

Abstract: The invention relates to a machine which is pulled or attached to a three-point attachment on a tractor and used for the harvesting of corn or similar stalk-like crops. The machine has a cutting device and a chopping blower arranged subsequent thereto with slide-in rollers to which the crop is supplied by a cross-conveyor running transversely to the direction of travel of the tractor. The cross-conveyor is designed as a cutting and supplying device, cutting the crop at any point in the working area, holding it above the cut area and supplying it in an approximately upright or inclined position, opposite to the conveying direction, to the slide-in rollers or a chopping machine with simultaneous release.

Abstract: A blade coupling assembly includes a spindle having a base plate and a collar which fits about the drive shaft of an engine. A pair of locking pins are removably received within pockets formed on opposite sides of a central bolt opening in the base plate. A lawn mower cutting blade is provided with three corresponding openings which are aligned with the central bolt opening and the locking pins, respectively. The cutting blade is secured between the bolt head and base plate, and a spacer ring is compressed between the base plate and the end of the drive shaft. The locking pins have reduced diameter portions which are received within the blade openings, and annular shoulder portions which engage the cutting blade. When locking pins are removed from the base plate pockets, the base plate is converted for attachment to a replacement blade having upturned side flanges instead of locking pin holes. In the converted arrangement, the upturned side flanges lock the cutting blade against the sides of the base plate.

Abstract: In order to enable the shaker members (11) of this harvesting machine to adapt to the thickness of the vegetation on fruit trees and bushes, each shaker member has both ends attached to a support (14) which reciprocates transversely relative to the longitudinal mid axis (12) of the machine, and is constituted by a rod (11) made of a highly flexible material suitable for being curved into an arcuate shape with the convex side of the arc being directed towards the longitudinal mid axis (12). At least one end of each flexible rod (11) is attached to its support (14) at a point (19) which is capable of moving a certain distance in a direction which is substantially parallel to said longitudinal mid axis.

Abstract: A round baler utilizes a combination of rollers and belts arranged to define a generally D-shaped bale starting chamber. An inner course of the belts forms the rear wall of the bale starting chamber while the rollers form the front wall of the bale starting chamber. The belt inner course extends upwardly and forwardly when the chamber is empty and is expandable in length during bale formation.

Abstract: A fine heterogeneous hybrid spun yarn is blended from electrostatically conductive staple fibers and electrostatically non-conductive staple fibers so that the yarn is electrostatically conductive only over short discrete lengths. When used in pile fabrics, such as carpets, the fine yarn is introduced with at least some of the carpet facing yarns during the carpet making operations. The resultant carpet structure substantially eliminates electrostatic shock to a human walking across the carpet and approaching a ground such as a light switch, radio, or another person. Such a carpet does not constitute a dangerous floor covering.The unique heterogeneous hybrid spun blended yarn is achieved by process techniques completely contrary to accepted blending practices.

Abstract: A method and apparatus for automatically actuating roving bobbin exchange operations in a textile yarn spinning apparatus. The spinning stations are divided into equal groups and a roving bobbin exchange operation is actuated at each group by a suitable control system, e.g. a microprocessor, as a function of the number of spinning stations of the group identified as down with uncorrectable yarn breaks and as a further function of the total elapsed operating time of the group since the last bobbin exchange operation.

Abstract: In an arrangement for texturing threads used in producing yarn, the threads are preheated by passing through channels of a contact heater before passing through the known yarn texturing, e.g. false twisting units. To increase thread and yarn production with a particular contact heater, two threads are passed through a respective heating channel in the heater, rather than one thread. To accomplish this, one thread has a right hand, regular or Z-twist or turn and the other has a left hand, reverse or S-twist or turn, and their crimp causes them to avoid each other at opposite sides of the channel, and not to undesirably contact. A respective texturing unit is supplied for each of the threads that has been heated.

Abstract: Fuel for a rocket engine consisting of hydrogen, oxygen and a hydrocarbon is admitted into the combustion zone through an injector whereby the hydrogen and hydrocarbon components are either pre-mixed in the injector or independently delivered and the oxygen is always independently delivered into the combustion zone.

Abstract: The invention combines liquid hydrogen with liquid oxygen and a hydrocarbon as the fuels in a tripropellant rocket booster engine.

Abstract: A rocket propulsion system working with cryogenic fuel is modified by supersonic and hypersonic flight wherein air is sucked in to be used in lieu of the oxidizer in the rocket system. Hybrid operation is provided for.

Abstract: A gas purification system through a filter system, especially applicable to an internal combustion engine, comprising engine exhaust ducting, an exhaust pipe, an expander on the exhaust pipe between a muffler and the exhaust ducting, a duct connected to the expander for diverting escape gases from the exhaust pipe, a pressure reducer on the duct to suck the gases from the exhaust pipe, a series of filtering parts serially interconnected on the duct between the expander and the pressure reducer to filter the gases, a regulator located between the pressure reducer and the filtering parts, a relay connected to the pressure reducer to start or stop the operation of the pressure reducer, a contactor connected to the engine to detect changes in the engine speed, an electronic circuit connected to both the relay and contactor so as to signal the relay when the contactor detects that the engine is idling or beginning to accelerate, and a delay switch connected to both the relay and electronic circuit so as to momenta

Abstract: A chain saw has an inner wall portion formed inside an upper wall portion of a body which surrounds a maffler chamber in which a muffler extending forward from an internal combustion engine is disposed. The inner wall portion extends parallel to the upper wall portion so as to form a heat insulation space between the muffler and the upper wall portion.

Abstract: A pneumatic-hydraulic booster for vehicles includes a master cylinder part; a pneumatic cylinder part combined with the master cylinder part including a power piston slidably fitted to a cylindrical casing and an output rod fixed to the power piston, extending to the master cylinder part; a partition wall body fitted to the cylindrical casing; and a relay valve part being arranged at the opposite side of the partition wall body to the power piston in the cylindrical casing. The relay valve supplies compressed air into an air pressure chamber formed between the partition wall body and the power piston and discharges the compressed air from the air pressure chamber to the atmosphere. When compressed air is supplied into the air pressure chamber through the relay valve part, the power piston and the output rod are moved forwards to generate hydraulic pressure in the master cylinder part. The hydraulic pressure is applied to a wheel cylinder.

Abstract: A master cylinder assembly (10) and method for manufacturing the same includes a housing 12 for movably receiving a pair of pistons (32, 34) which cooperate with seals (28, 30) to communicate fluid pressure to respective brake circuits during braking. A reservoir 40 is formed by an integrally molded single unit which also extends into the housing bore (11) to define a liner (46) which substantially positions the seals (28, 30) within the bore (11). A sleeve (26) is also positioned in the bore 11 by the liner (46). When the master cylinder assembly (10) is manufactured the reservoir (40) and liner (46) are formed simultaneously.

Abstract: A helper drive apparatus for a turbine drive system in which a load is mainly driven by a turbine and a helper motor is used for assisting the drive for the load, comprising: a turbine control circuit, coupled to the turbine, for controlling output power of the turbine in accordance with a turbine power reference signal; a motor control circuit, coupled to the helper motor, for controlling output power of the helper motor in accordance with a motor power reference signal; a speed control means, coupled to the turbine, for detecting a difference between a given speed reference signal and a speed signal indicating an operation speed of the turbine, and providing a master power reference signal representing the difference; and a power sharing ratio control circuit, coupled to the speed control circuit, turbine control circuit, and motor control circuit, and being responsive to a given power sharing instruction signal, for sharing the master power reference signal to the turbine power reference signal and the mot

Abstract: A method for cooling a material in contact with a cooling medium comprises evaporating water contained in the cooling medium and adsorbing the evaporated water to soft burnt lime and causing the evaporation and the adsorption to be carried out under a reduced pressure to cool the material. An apparatus for carrying out the method is provided.

Abstract: A flow visualization system usable for clean rooms to determine the flow conditions that exist during manufacture, includes a non-contaminating source of a visible stream of a fog comprising water droplets which evaporaate and leave no residue. Steam is generated in a boiler and it passed over an interface with a cryogenic material to form a high density fog generator providing a highly visible fog that is neutrally bouyant and non-contaminating.

Abstract: An auger type ice making mahine has a refrigerator, an ice making cylinder for forming a layer of ice in cooperation with the refrigerator, and a top ice storage chamber in communication with the ice making cylinder for storing ice discharged therefrom. A bottom ice storage chamber is disposed below the top ice storage chamber for receiving and storing ice transferred from the top ice storage chamber. The top ice storage chamber is equipped with a top ice storage level detector for detecting the amount of ice stored within the top chamber, an ice dispensing gate mechanism capable of dispensing ice pieces stored in the top ice storage chamber outwardly therefrom, and an ice transfer system capable of transferring ice pieces from the top ice storage chamber to the bottom ice storage chamber. The bottom ice storage chamber is provided with a bottom ice storage level detector for detecting the amount of ice stored within the bottom chamber.

Abstract: A multiroom air conditioner has a plurality of indoor heat exchangers connected to a single outdoor heat exchanger. A reversible expansion valve is installed on a liquid-side branch pipe for each of the indoor heat exchangers, and a solenoid valve is installed on a gas-side branch pipe for each indoor heat exchanger. Temperature sensors are provided on the liquid-side branch pipes, on the gas-side branch pipes, and on the outlet side during cooling of the outdoor heat exchanger. A pressure sensor or a temperature sensor detects the saturation temperature on the high-pressure side of the compressor. Based on the saturation temperature on the high-pressure side of the compressor, the temperature on the outlet side during cooling of the outdoor heat exchanger, and the temperatures in the liquidside branch pipes, a controller controls the expansion valves so as to obtain a target degree of subcooling during cooling and heating.

Abstract: An air conditioner wherein supply air is first passed through the supply air passages of an air-to-air heat exchanger, then over a first refrigerant-to-air heat exchanger, into the space to be air conditioned, and return air from that space is passed throught the air-to-air heat exchanger, through a second refrigerant-to-air heat exchanger, and discharged to atmosphere, the refrigerant heat exchangers being the condenser and evaporator of a closed refrigeration system driven by a heat pump compressor.

Abstract: This publication describes a method and apparatus for the utilization of heat energy released in a cooling process. In accordance with the method, air used as the heat transfer medium is routed to a compressor (2) in which compressor (2) the air is compressed to a higher pressure, the compressed air is cooled to a lower temperature, the cooled air is routed to a turbine (8), where it expands to a lower pressure and cools down, and air expansion work released in the turbine (8) is used for rotating the compressor (2). In accordance with the invention, air is compressed in the compressor (2) to such a high pressure that its temperature exceeds a minimum temperature of water boiling point in normal atmospheric pressure, the high-pressure compressed air is cooled to a sufficiently low temperature, e.g., below 15.degree. C.