| Patent Number |
Title Of Patent |
Date Issued |
| 6289711 |
Method and device for rounding bushings |
September 18, 2001 |
| The invention concerns a bending device (10) comprising two shaping dies (12, 14) with shaping chambers (22, 24) in order to round a sheet bar (26) about a core (16). The peripheral lengths of the two shaping chambers (22, 24) are each longer than half the bushing circumference. During a |
| 6027678 |
Process and device for manufacturing thin-walled laminated moldings |
February 22, 2000 |
| A process is disclosed for manufacturing thin-walled moldings with a ground layer (4) made of thermoplastic materials and a covering layer (5) made of prefabricated flat covering materials pressed together with the ground layer by a back pressing technique in a form tool (8) having a top |
| 5996392 |
Machine for stamping, bending and assembly of sheet metal parts |
December 7, 1999 |
| A stamping and bending machine (10) has upper and lower horizontal supports (18, 16) in each of which are formed two longitudinal chambers (80) which open out through broad longitudinal slits (86) on opposite sides of the horizontal supports (16, 18). On both lateral faces of the horizon |
| 5952742 |
Synchronous linear motor with improved means for positioning and fastening permanent magnets |
September 14, 1999 |
| A synchronous linear motor with primary part having a winding and a secondary part including an elongated bearing plate to which the pre-magnetized permanent magnets of brittle and corrosion-prone material, are firmly adhesively secured while maintaining the pole pitch grid. In order |
| 5858422 |
Pressure and alignment compensator for a press |
January 12, 1999 |
| A compensator is used with a machine frame having a pair of ends, a first mold half secured to one of the frame ends, a second mold half movable along an axis toward and away from the first mold half, and an actuator braced against the other frame end and having an outer end operatively |
| 5858421 |
Mold closing device for a plastics molding machine, in particular an injection molding machine |
January 12, 1999 |
| A mold closing device for an injection molding machine has four tension members (17, 19) which interconnect the fixed mold closing plate (3) and the support plate (5) of the closing drive (7) in a tension-resistant manner are not formed as straight rods but have a L-shaped configuration, |
| 5850112 |
Linear motor |
December 15, 1998 |
| A linear motor includes a primary part which is cooled using a coolant circuit to remove heat loss caused in the current-carrying conductor windings so as to prevent excess operational temperatures in the linear motor. In order to allow the linear motor to be used in immediate proxim |
| 5811141 |
Mold-closing apparatus for an injection-molding machine |
September 22, 1998 |
| An injection molding machine has a pair of C-shaped tension members interconnecting the fixed bracing plates at location above the axis of force action in the mold closing and injection operations. The mold closing unit is mounted on one of these plates and a mold part on the other p |
| 5788995 |
Apparatus for making a composite thermoplastic and silicone article |
August 4, 1998 |
| After a thermoplastic synthetic resin has been injection molded onto a transfer plate in a thermoplastic injection mold, the transfer plate is shifted into a silicone injection mold maintained at a high temperature and a silicone member is injection molded onto the thermoplastic member. |
| 5785422 |
Piston arrangement for removing a reactive plastic mixture from a stabilizing chamber of a mixin |
July 28, 1998 |
| A device for mixing at least two chemically reactive plastic components, includes a cylindrical mixing chamber into which plastic components are injected, wherein a reversible piston is disposed inside the mixing chamber, and a cylindrical stabilizing chamber adjoining the mixing cha |
| 5773050 |
Mould closing device for an injection moulding machine |
June 30, 1998 |
| A mould closing device for an injection moulding machine includes a fixed (1) and a movable (4) mould clamping plate for support of screw drives (36) which are freely rotatable in the fixed mould clamping plate (1) and axially supported in one direction and supported in spindle nuts (39) |
| 5744879 |
Synchronous linear motor |
April 28, 1998 |
| To improve the movement precision of a synchronous linear motor, it is proposed that the front and rear end faces (11, 12) of the primary section (10) be ungrooved and not wound and bevelled in sections in such a way that the angle of inclination (.beta.) of the bevelled surfaces (11a, 1 |
| 5736169 |
Closing apparatus for multiple-mold injection-molding system |
April 7, 1998 |
| An injection-molding apparatus has a housing, a plate fixed on the housing, a plurality of fixed mold halves on the fixed plate, a plate movable along an axis toward and away from the fixed plate and supported on the housing without tie rods, respective movable mold halves on the movable |
| 5697463 |
Suspension for track-laying vehicle |
December 16, 1997 |
| A track-laying vehicle has a frame with a pair of opposite sides, a track suspension on each side of the frame, and respective vibration-damping support bodies fixed on the suspensions and on the frame and securing the suspensions to the frame. Each suspension has a support housing movab |
| 5688537 |
Mold centering system for injection-molding machine |
November 18, 1997 |
| An injection-molding assembly has a fixed mold plate carrying a centering ring, a fixed mold half carrying a centering ring snugly interfitted with the fixed-plate centering ring, a movable mold plate carrying a centering ring, and a movable mold half carrying a centering ring snugly int |
| 5630938 |
Evertable drum centrifuge filter |
May 20, 1997 |
| An evertable drum centrifuge has a housing extending along an axis, a hollow filter drum rotatable in the housing about the axis and having a front end wall formed with a fill opening centered on the axis, and a nonrotatable fill tube extending along the axis and having a back end. A |
| 5474134 |
System for making a molded laminate |
December 12, 1995 |
| A laminate is made by first forming a substantially closed mold cavity between a pair of mold halves, then injecting a plastified synthetic resin into the cavity under pressure to substantially fill the cavity and at least partially curing the resin in the cavity to form a base body. The |
| 5336462 |
Mold-closing apparatus for injection-molding machine |
August 9, 1994 |
| A molding system has a base, a fixed mold plate secured to the base, a fixed mold half carried on the fixed mold plate, a movable mold plate displaceable on the base longitudinally forward away from the fixed mold half and backward toward the fixed mold half, and a movable mold half |
| 5277567 |
Apparatus for mixing reactive synthetic-resin components |
January 11, 1994 |
| A mixing head for a mold can receive two or more reactive synthetic resin components in a mixing chamber in which a mixing-chamber piston is displaceable to drive the residues into a first calming chamber communicating with the outlet of the mixing chamber. The first calming chamber |
| 5270014 |
Apparatus for producing a foamed mass of a polyurea elastomer |
December 14, 1993 |
| Through three separate passages opening in a common plane at right angles to one another into a mixing chamber, three components of a reactant polyurethane or polyurea elastomer composition to form in a mold cavity are introduced. One of the components is an aliphatic polyether amine |
| 5259749 |
Apparatus for feeding synthetic resin material to injection molding and extruder units |
November 9, 1993 |
| A highly viscous or dough-like material, especially glass fiber-filled polyester, polyamide or polypropylene is fed from a rotating funnel via a feed worm lying along a generatrix of the funnel directly into an extruder or an injection molding cylinder and without passing through an elbo |
| 5219033 |
Tractor for aircraft |
June 15, 1993 |
| An aircraft towing tractor has its acceleration limited to a predetermined limiting acceleration to reduce stresses upon the aircraft undercarriage by a computer-controlled regulator interposed between the gas pedal and the internal combustion engine. The regulator can also provide contr |
| 5157059 |
Method of and apparatus for producing a foamed mass of a polyurea elastomer |
October 20, 1992 |
| Through three separate passages opening in a common plane at right angles to one another into a mixing chamber, three components of a reactant polyurethane or polyurea elastomer composition to form in a mold cavity are introduced. One of the components is an aliphatic polyether amine |
| 5079033 |
Process and apparatus for resin-coating of extrusions |
January 7, 1992 |
| An extrusion is coated with a resin by passing the extrusion continuously through a belt-shaped plasma formed by means of a stationary annular electron cyclotron resonance magnet which completely surrounds the extrusion. The resin coating is produced by plasma polymerization of a mon |
| 5026169 |
Mixer-dryer |
June 25, 1991 |
| The mixer of the invention consists of an upwardly flaring conical mixing container 10 comprising a spherical bottom 28 formed by a rotary head 26. The mixer screw shaft 32 rests in the rotary head and is sealed therein, entering the mixing container 10 from below. The rotary head is aff |
| 5000900 |
Twin screw extruder |
March 19, 1991 |
| A twin screw extruder with a material homogenizing unit is the subject of this disclosure. Two extruder screws are located within a housing positioned and configured so that screw turns and screw lands of a first screw mesh with respective screw lands and screw turns of a second screw. |
| 4923253 |
Braking system for aircraft towing vehicle |
May 8, 1990 |
| A braking system for an aircraft towing vehicle which supports the nose wheel of an aircraft in a raised position and firmly clamps it to the vehicle. The braking force generated by the front wheels of the towing vehicle is greater by about 2:1 to 8:1 than the braking force at the rear |
| 4917564 |
Hold-down system for an aircraft towing vehicle |
April 17, 1990 |
| An aircraft towing vehicle has a frame with a rearwardly opening, U-shaped recess for receiving the nose wheel of an aircraft. A lifting and securing mechanism is disposed within the recess and includes a ramp and a stop plate carried by the frame, a lifter which pushes the nose wheel fr |
| 4917563 |
Aircraft towing vehicle having a mechanism for substantially preventing relative aircraft wheel |
April 17, 1990 |
| An aircraft towing vehicle has a frame with a rearwardly open, U-shaped recess for receiving the nose wheel of an aircraft and a lifting and securing mechanism for raising the nose wheel off the ground and securing it to the towing vehicle in the raised position. The lifting and securing |
| 4911604 |
Aircraft towing vehicle having steered nose wheel lifting mechanism |
March 27, 1990 |
| An aircraft towing vehicle is equipped with an aircraft nose wheel lifting and securing mechanism. The nose wheel is received in a U-shaped recess of the vehicle chassis, the lifting mechanism being constructed to grip the wheel from behind and underneath and to then push it up a ramp. T |
| 4911603 |
Aircraft towing vehicle having swiveled nose wheel lifter |
March 27, 1990 |
| An aircraft towing vehicle has a rearwardly opening recess adapted to receive the nose wheel of an aircraft to be towed. A nose wheel lifting and clamping mechanism has two nose wheel lifters which can be pivoted from a retracted position, in which they are parallel to sides of the v |
| 4898714 |
Mixing apparatus |
February 6, 1990 |
| An impingement mixing device is provided comprising a mixing chamber housing, a control piston axially displaceable with said mixing chamber housing between an extended position and a retracted position, a mixing chamber within the housing defined by an end face of the control piston |
| 4880587 |
Process for production of an injected molded part |
November 14, 1989 |
| An injection molded part of thermoplastic material, in particular an information carrier disk, is produced by cutting and removal of a sprue part from the injection molded part. The sprue removal leaves an opening in the injection molded part. In order to obtain a clean and smooth op |
| 4691448 |
Apparatus and process for drying finely grained solid particles |
September 8, 1987 |
| Agitator elements are provided in an apparatus and a process for the transport of heat and material between finely grained solid particles and a flow of carrier gas in a rotating fluid bed in order to prevent settling of coarse particles or agglomerates. The agitator elements are immerse |
| 4643581 |
Piston metering apparatus of a reaction injection molding machine |
February 17, 1987 |
| A piston metering apparatus for the metering of the components of a reaction injection molding machine comprising a metering cylinder (2) the cylinder space of which is surrounded by a cylinder wall, a metering piston (10) sealed in relation to the cylinder wall by means of a sealing |
| 4536288 |
Pocket centrifuge and method of operating same |
August 20, 1985 |
| A pocket centrifuge has a plurality of sieve pockets having sieve surfaces and orbitable about an axis with the sieve surfaces forming sieve angles with perpendiculars to planes including this axis. A filtrant is fed radially to these pockets so that solids collect on the surfaces thereo |
| 4503014 |
Mixing head |
March 5, 1985 |
| A mixing head for two or more reactive components especially anionically polymerizing caprolactam comprises a piston formed with recess means which, at the end turn toward the outlet of the mixing chamber, intercept respective streams of the components which are normally trained upon one |
| 4443179 |
Rapid-action mold closer |
April 17, 1984 |
| An apparatus for closing a mold in an injection-molding operation has a double-acting main piston that is connected to a mold-carrying plate and that move axially in a main cylinder. A rapid-action piston extends into a small-diameter bore in the main piston, and the rear cylinder wall i |
| 4408139 |
Asynchronous linear electric motor |
October 4, 1983 |
| An asynchronous linear motor in which a stator mounted on a vehicle, e.g. a magnetically supported vehicle, cooperates with a reaction rail along a track for propulsion of the vehicle. According to the invention, the core of the stator comprises a pocketed frame-like or grid structure of |
| 4259908 |
Electromagnetic suspension vehicle |
April 7, 1981 |
| An electromagnetic suspension vehicle has an electromagnet system for suspending and guiding the vehicle along a track, the electromagnet being elastically suspended so as to be able to move generally parallel to itself transversely of the direction of travel. |
| 4226543 |
Mixing head, especially for reactive components such as those in thermosetting synthetic resins |
October 7, 1980 |
| A mixing head, specially for chemically reactive fluid components, such as two reactive liquids adapted to form a synthetic resin, has a central body which is provided with passages enabling recirculation of the individual components in one position of the mixing head and discharge of th |
| 4200529 |
Method of dewatering a slurry |
April 29, 1980 |
| A slurry, such as of sulfide-type copper ore, is separated into a coarse suspension and a fine suspension. The coarse suspension is centrifuged to separate the solid and liquid phases thereof. The fine suspension may be centrifuged or filtered separately from the coarse suspension simila |
| 4193875 |
Rotary filter |
March 18, 1980 |
| A multi-disk rotary filter in which a plurality of disks on a common shaft are partly immersed in a trough containing the suspension to be filtered and each of the filter disks is formed with a plurality of filter sectors or cells each connected to a control disk through which the filtra |
| 4184964 |
Centrifuge |
January 22, 1980 |
| A wobble centrifuge has a housing in which a tube shaft is rotatable about a first axis, this tube shaft having a lower tube part centered on the first axis and an upper tube part centered on a second axis that crosses the first axis at an intersection. An at least partially flexible cor |
| 4153551 |
Wobble centrifuge and method of operation |
May 8, 1979 |
| A centrifuge has a drum to which a wobble or nutating motion is applied to discharge the centrifuged material over the edge of a wall of the perforated basket. The wobble or nutation is caused by tilting the axis of this wall relative to the axis rotation of the assembly. According to th |
| 4052303 |
Method of operating a centrifugal filter and a filter centrifuge operating according to this met |
October 4, 1977 |
| A method of operating a filter centrifuge or centrifugal filter in which a hydrostatic head is provided at the filtering surface so as to control liquid passage therethrough. The head may promote movement of the liquid through the filter layer or may induce reverse flow of liquid for |
