Tetra Laval Holdings & Finance S.a.

Tetra Pak Holdings & Finance S.a.

Synventive Molding Solutions, Inc.

Tetra Alfa Holdings Sa

Tetra Pak Holdings S.a.

Hotset Heizpatronen U. Zubehor Gmbh

Tetra Pak Holding & Finance S.a.

Udo Liebram

Wilhelm Reil

Ulrich Deutschbein

Gerd Knobloch

Peter Sattler

Heiko Bub

Bernhard Korus

Manfred Wallich

Wihelm Reil

Hendrik Wölper

Bengt Eckerwall

Anita Sattler, Legal Representative

Uwe Hieltscher

An electrical sleeve heater for an element having a generally cylindrical outer surface. The heater has a generally helical coil centered on an axis and having a pair of opposite coil ends, a pair of generally coaxial, axially aligned, and similar tubes each fixed to a respective one of the coil ends and surrounding the coil so that relative rotation of the coil can radially increase or decrease an inside diameter of the coil. The tubes having axially adjacent inner ends and outer ends, and means for releasably fixing together the coil inner ends.

Electrical sleeve heater

An injection moulding device includes an elongated nozzle having a central bore, a forward end with an outlet for supplying molten thermoplastic material via the bore and the outlet to a cavity, and a heating element around the nozzle, the heating element having a rear end and a forward end and being helically wound around and supported by the nozzle. The helical windings of the heating element are substantially unrestrained in a circumferential direction of the nozzle, wherein one of the ends of the heating element can be radically displaced around the nozzle in a circumferential direction.

Helical heating element for an injection moulding device

An injection molding device ( ) including an actuating cylinder ( ) with a piston ( ). A valve pin ( ) is actuated by the cylinder ( ), the piston including a fluid passage ( ) via which pressure medium can pass when the piston is in a position between its upper and its lower end position, and which is at least partly closed off when the piston is in its lower and/or its upper end position. Hereby relatively simple position indicator of the valve pin ( ) is formed.

Injection moulding device comprising valve pin position indicator

The invention relates to an injection molding device ( ) having an elongated nozzle ( ) and a valve pin ( ) coaxially in a channel of the nozzle. The valve pin can be displaced by means of an actuating cylinder ( ) and is guided through a bush ( ) at the upper end ( ) of the nozzle. Cooling means ( ) are associated with said bush ( ).

Injection moulding device having a cooled valve pin guide bush

An injection molding device ( ) having a valve pin ( ) and an actuating cyclinder ( ) connected to the valve pin ( ). The valve pin head ( ) is releasably attached to the piston ( ) of the cylinder such that the cylinder can be removed while leaving the valve pin ( ) from the nozzle such that a low headspace can be achieved above the nozzle.

Actuating cylinder for a valve gated injection moulding device

A device for filling packages (10) with flowable products in low germ level conditions in a clean room (9) is described, with a product line (26), a filler valve (11) and a filler pipe (8) projecting into the clean room (9). In order that filling, with a low level of germs, of flowable contents into packages (10) is made possible without formation of condensation on filler pipes (8) and preferably in addition cleaning of the device directly in place without a great deal of assembly, the filler pipe (8), in its inlet area on the inlet aperture (15) in the top surface (14) of the clean room (9) is surrounded by a sleeve pipe (28) fitted at a distance coaxially, with inflow apertures (29) for air which is dry and has a low level of germs, and means (2-7) for producing and supplying the air which is dry and has a low level of germs are provided in the inflow apertures.

Device for filling packages under low germ level conditions

In a device for conveying and processing packs for liquids, a feed conveyer is provided. The device further includes processing stations, including processing stations for filling and closing of the packs, arranged sequentially, the feed conveyor feeding packs to the processing stations. The device includes a removal conveyer for removing processed packs from the device. The device includes a first main conveyer device, the first main conveyer device being a one-step vertical conveyer device and having at least one vertically movable bridge with at least one horizontally arranged support rod for transporting a plurality of packs simultaneously, and a second main conveyer device, the second main conveyer device being a one-step horizontal displacement device. The first and the second main conveyer devices have a common conveyance position at a bottom one of two conveyance positions of the first main conveyer device. The processing stations for filling and closing of the packs are arranged vertically above the first and the second main conveyer devices. The support rod is of sufficient length to transport a plurality of packs arranged in a row relative to one another.

Device for conveying and processing packs for liquids

Device for filling and closing packs for liquids

A separating apparatus having a magazine in which stacked sheets made of plastics material or the like are arranged, and having movable suction means for moving the separated sheets to a workplace, where the sheets in the stack are supported in a horizontal position by holding means on the bottom edge of the magazine, and therebetween the bottom most sheet is freely disposed and is accessible to the suction means. The holding means comprises a rotatably driven shaft arranged along the two bottom edges of the magazine, the cross-section of which shaft, in the region of the length of the sheet, is recessed so as to form a shoulder, the depth of the shoulder being equal to the thickness of the sheet to be separated, and arranged approximately in the center between the edges of the magazine are the suction means which are able to move toward and away from the bottom sheet.

Apparatus for separating stacked sheets using rotatable, recessed shafts

A method is provided for heating and transferring a substantially flat workpiece made of a deep drawable plastic material including the steps of enclosing at least a substantial portion of the workpiece between first and second opposing carrier plates such that a gas-tight seal may be formed by one of the carrier plates about the substantial portion of the workpiece and supplying hot gases through a gas distribution conduit associated with the first carrier plate while withdrawing hot gases through a gas distribution conduit associated with the second carrier plate such that the workpiece is heated and transferred to the second carrier plate. The workpiece is then transferred to a third carrier plate or a deep-drawing device.

Method for heating and molding platelike parts

An apparatus for feeding sheet-shaped blanks (9) of deep-drawable synthetic plastic material to the receiving station of a deep-drawing machine having a plurality of suction plates (15) wherein a supply roll (2) holding a web (1) of synthetic plastic material which is capable of being intermittently driven by pairs (3, 4, 23) of drive rollers and moved in front of a cutting means (5) having on its downstream side a magazine (8), a movable flap (11) provided with suckers (33) and a first supporting plate (13) being adapted to be brought into engagement with the removal side of the magazine (8), a second movable supporting plate (16) provided with suckers (33) being disposed on the other side, guide means (35) being provided in order to feed the blanks (9) from the movable flap (11) and round onto the opposite side of the suction plate (15) to the second supporting plate (16).

Apparatus for feeding sheet-like blanks to a deep-drawing machine

A device for heating plastic plates using contact heat and hot gases which are supplied to the plastic plate to be heated by carrier plates is provided. Therein, two carrier plates are movable relative to each other vertically with respect to their common contact surface. Gas distribution conduits also open in the contact surface. In order that the plastic plates which are to be heated can be removed properly from the carrier plates, so that damage to the heating device is avoided, each contact surface of both carrier plates is surrounded by a frame-like, closed outer edge without mouth openings for the gas distributions conduits.

Device for heating platelike parts

A method of producing a package for fluids made of a synthetic plastic material, in which a strip of the material is shaped to form two rows of tub-shaped containers which are filled, sealed, pairs of them being folded together to form a single container, and welded closed into a single container. In a particular preferred embodiment, two plastic webs are first brought together continuously and sealed along outer edges, to form a tube, with the tube then being filled from above, with thereafter transverse seals provided between pairs of adjoining tub-shaped containers.

Method of making a molded plastic package

Described is a pouring device of plastic material for fitting to the hole of a flowing medium pack, wherein the pouring device (10) has a portion (20) which is openable by means of a tearing line (25). So that packs of widely different configurations and consisting of a wide range of different materials can be produced in such a way as to be sealed and easily openable, the pouring device (10) has at least a bottom portion (20) and a closure portion (21) which are pivotally movably connected together by way of a hinge (22), wherein the tearing line (25) is disposed in the bottom portion (20). The process for the production of such a pouring device is characterised in that a series of blanks which are arranged in succession in a flat condition and which are in line-wise contact with each other are formed from an endless web of plastic material which can be subjected to deep drawing, and rolled up to form a coil, and the blanks are separated off prior to fitting to the hole in the pack.

Pouring device for container for flowable material

A pack for flowable contents, the pack having side walls which together from a tube, two end walls, one of which is an essentially flat bottom wall and the other of which is an essentially flat top wall and having a closable hole wherein the pack consists of plastic material, characterized in that a seam standing out from the side walls of the pack encompasses the pack, and lies in a plane which is disposed so that it is parallel to the longitudinal central axis of the tube, that the seam is arranged so that it extends in a depression in the region of the bottom and top wall, and that a part of the depression in the top wall surrounds the pouring device. The pack may further include a closable pouring device for the hole, which pouring device is disposed within an outer coutour of an end wall.

Growing community of inventors

Pfungstadt, Germany

Udo Liebram