Abstract: A liquid-heating system has a solar energy collector exposed to solar radiation, a geothermal heat exchanger buried in the ground at a depth between 0.5 m and 5 m, a heater through which a liquid to be heated passes, and a heat pump having a sink side connected to the heater and a source side connected to the geothermal heat exchanger or to the solar energy collector. A first controller or valve setup connected to the heat collector can in one position connect the solar energy collector to the water heater such that heat collected by the solar energy collector is applied to the water heater. In another position it can connect the solar energy collector to the geothermal heat exchanger such that heat collected by the solar energy collector is applied to the ground surrounding the geothermal heat exchanger.

Abstract: A container with container side walls made of metal, a container bottom portion made of metal and a container lid made of metal, characterized in that the container side walls are joined with each other and/or with the container bottom portion and/or with the container lid, at least in certain areas, by means of a cold pressing technique. The container side walls and/or the container bottom portion and/or the container lid are, at least in certain areas, provided on outsides with a zinc coating and on this zinc coating a polymer coating is applied.

Abstract: A grid casing for a container having a tendency to become electrostatically charged has a basic grid made of basic grid bars forming a basic grid mesh structure. The basic grid is primarily responsible for the strength of the grid casing. Additional grid bars are provided for forming a tighter grid mesh structure relative to the basic grid mesh structure of the basic grid.

Abstract: A pallet container has a container wall having an outlet opening and a drainage fixture with a flange. The drainage fixture is connected to the outlet opening in the container wall and fastened by the flange to the container wall. A conductor element is provided to discharge electrical charges from the container. At least one part of the conductor element is arranged between the flange and the container wall.

Abstract: A grid casing for a container having a tendency to become electrostatically charged has a basic grid made of basic grid bars forming a basic grid mesh structure. The basic grid is primarily responsible for the strength of the grid casing. Additional grid bars are provided for forming a tighter grid mesh structure relative to the basic grid mesh structure of the basic grid.

Abstract: A grid has crossing grid bars, wherein the first grid bars extending in a first direction are made of an open profile having outwardly bent-away borders positioned in a common plane and wherein the second grid bars extending in a second direction are made of the same open profile as the first grid bars or of a closed profile having at least one planar profile wall. The first grid bars and the second grid bars are positioned relative to one another such that the bent-away borders rest against one another or that the bent-away borders of the first grid bars rest against the planar profile wall of the second grid bars and are connected to one another on the contact surfaces. The grid forms a wall of a cage for receiving a plastic container of a palette container for storing and transporting substances.

Abstract: A bottom of a basket or sheet metal container for receiving a plastic container of a combination pallet container for storing and transporting goods forms an upper part of a pallet having at least one transverse bar for supporting the bottom. The bottom has a rectangular bottom surface and an upwardly curved portion forming a rim area. The bottom surface has a depression in front of a center of a first rectangle side of the rectangular bottom surface. The bottom surface has a descending plane descending from a second rectangle side of the rectangular bottom surface positioned opposite the first rectangle side toward the depression and having a lower end adjoining the depression. The bottom surface has two ascending planes adjoining the descending plane on opposed sides of the depression and ascending toward corners of the rectangular bottom surface located on opposite ends of the first rectangle side ends.

Abstract: A double-walled tank for storing liquids, such as heating oil, diesel fuel and lubricating and hydraulic oils, with an inside container 1 made of plastic, and an outside container 2 made of steel sheet, the outside container being provided with a container cover 6. The container cover 6 contains openings for receiving sockets 7 of the inside container 1, and has a collar 8 with a U-shaped cross section. The collar is mounted on the top edge of the container jacket and solidly joined with container jacket 3. The interior space of the collar 8 contains a seal for sealing the collar gas-tight against the container jacket 3. Pressure rings for applying pressure to seals are threaded on sockets 7, and compress the seals between the cover and the container.

Abstract: A cage for receiving a plastic container in the overall arrangement of a pallet-type container, having a shallow tray (3) as base of the cage, the tray being arranged on a pallet or forming the top part of a pallet, and a grid casing as wall of the cage, the grid casing being connected to the border (28) of the tray (3), is constructed such that, on its bottom border, the grid casing has a web (19) which is supported on the pallet or, if the tray (3) forms the top part of the pallet (5), on a bottom part (11, 15) [sic] of the pallet and on which the tray (3) is supported by means of its border (28), and the border (28) of the tray (3), the web (19) and the pallet, or the bottom part (4) of the pallet, are connected to one another in a positively locking manner (31, 33; 35, 36).

Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy and/or epoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.

Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.

Abstract: A foamed plastic basin body for a sanitary basin is provided with a die in which a shell of thermoplastic foil, previously heated to a bonding temperature above the deep-drawing temperature is bonded by a deep-drawing die which serves to shape the shell.

Abstract: The invention relates to a method and a device for cutting a tub. To optimize the construction of the cutting line and to increase the cutting speed, the invention provides that a cutting device is supported on a carriage movable along a guide rail. The guide rail can be mounted on a tub to be cut up. The carriage has a drive and makes it possible to move the cutting device in an exact manner with the greatest possible advancing speed.

Abstract: A solar collector having a blow-molded frame and an integral absorber plate. The frame is larger in thickness than is the thickness of the absorber plate portion. The absorber plate portion of the blow-molded part has a channel system molded therein for conveying a liquid therethrough. The blow-molded part has rigidifying sections therein to enhance the stability of the solar collector.