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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7431583 | Injection molding machine The invention provides an injection molding capable of adjusting a detection level with a simple structure and detecting a deposit level of the resin pellets near a plasticizing screw. A cooling jacket is mounted so that a resin supplying hole of the cooling jacket ... | 10/07/2008 |
| 7404665 | Device for charging a screw lodged in a housing and method for operating a device of this type An apparatus for filling a screw (7) bearingly supported within a housing (6), in particular of an extruder, for processing of pre-comminuted synthetic plastics material, in particular PET, has a filling opening (5) for the screw housing (6 | 07/29/2008 |
| 7291297 | Injection molding method and apparatus for continuous plastication In a reciprocating (RS) injection unit environment, as shown in FIG. 1, a controller of the injection unit is arranged to continuously rotate the screw during both conventional plasticizing operation and shot injection. In this way the RS unit is more efficie... | 11/06/2007 |
| 7284897 | Extruder for continuously working and/or processing flowable materials An extruder has at least three parallel, co-rotating shafts disposed in a cavity therein along a circle. The shafts are equipped with screw elements closely intermeshing over their whole circumference. At least one screw element is formed as a passage screw element ... | 10/23/2007 |
| 7270470 | Feed extender for explosive manufacture A feed device extends the run time for manufacturing explosive materials. The feed device includes a feed hopper for retaining processing materials where the feed hopper includes an access at the top of the feed hopper for inputting processing materials and an exten... | 09/18/2007 |
| 7121716 | Mixing equipment sealing device A shaft sealing arrangement for sealing bores around a pair of stirrer shafts that emerge through a wall of an associated mixing vessel includes a pair of generally cylindrical shaft sealing assemblies designed to be carried on adjacent stirrer shafts, each gland as... | 10/17/2006 |
| 7090222 | Shaft sealing assembly for vacuum processing apparatus Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an ann... | 08/15/2006 |
| 7077558 | Dough treatment facility A dough treatment facility comprises, among other things, a dough kneading arrangement, which comprises an inner kneading drum, an outer kneading drum which is moved in relation thereto within the scope of a kneading motion, and a plurality of kneading compartments ... | 07/18/2006 |
| 7055825 | Shaft sealing apparatus Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an ann... | 06/06/2006 |
| 7004739 | Apparatus for injection molding multilayered articles An apparatus for injection molding two compatible polymeric materials, in which two or more plasticizing zones on a screw are used to simultaneously or sequentially plasticize the two materials into a common accumulation space through separate pathways. The charge c... | 02/28/2006 |
| 6994540 | Injection molding system and pellet feeding unit In a conventionally used injection molding apparatus, undried resin pellet is put in a drier of a predetermined temperature and water and gas in the undried resin pellet is completely removed, and the dried pellet deprived of water and gas is thrown into the injecti... | 02/07/2006 |
| 6883954 | Dough treatment facility A dough treatment facility comprises a dough feeder, a dough metering arrangement, a dough kneading arrangement, a transfer arrangement disposed between the dough metering arrangement and the dough kneading arrangement as well as a dough discharge arrangement. A del... | 04/26/2005 |
| 6056429 | Method for processing high molecular weight elastomers A process and apparatus for melting and processing a high molecular weight elastomeric material for a gum base or chewing gum product is disclosed. The solid elastomeric material, which preferably is polyisobutylene, is heated and melted into a liquid mat... | 05/02/2000 |
| 5853243 | High molecular weight elastomer processing system for chewing gum A process and apparatus for melting and processing a high molecular weight elastomeric material for a gum base or chewing gum product is disclosed. The solid elastomeric material, which preferably is polyisobutylene, is heated and melted into a liquid mat... | 12/29/1998 |
| 5653534 | Screw apparatus and method for supplying reinforcing fiber-containing molten resin using the apparatus A screw apparatus comprises a melting extruder for melting a resin; a screw unit for kneading molten resin and reinforcing fibers to obtain a reinforcing fiber-containing molten resin and supplying it; and a mixer in which at least a part of the reinforci... | 08/05/1997 |
| 5490725 | Melt-sealing device for extruders for the processing of thermoplastic polymers or rubber A melt-sealing device for extruders for thermoplastic polymers or rubber for sealing off the gear unit side against high-melt pressure, in which sealing is effected by the configuration of the extruder screw which includes an intake section, a compression... | 02/13/1996 |
| 5486327 | Apparatus and method for injecting or extruding colored plastic Apparatus including a barrel including a generally cylindrical inner wall defining a generally cylindrical chamber having a longitudinal axis, an inlet end for receiving solid material, and an outlet end for discharging molten material, the inner wall hav... | 01/23/1996 |
| 5409366 | Apparatus for processing extrudable materials An apparatus is disclosed for processing extrudable materials in such a way as to apply a controlled and predetermined degree of shear force to the materials. Typically, an extruder apparatus includes a housing having first and second screws mounted there... | 04/25/1995 |
| 5378415 | Process for the production of homogeneous rubber blanks Process for producing from a rubber mixture blanks for finished parts in the rubber industry is composed of an extruder having a cylinder and a screw rotatable in the cylinder to plasticize a rubber mixture fed into the cylinder, an extrusion head and a g... | 01/03/1995 |
| 5318431 | Process and apparatus for preparing toner particles Disclosed is an apparatus for obtaining toner particles with improved dispersion of additive components therein comprised of a toner extrusion device containing therein a blending chamber, a screw mixing means, a heating means, a toner supply means, and a... | 06/07/1994 |
| 5297948 | Extruder screw for use in foam plastic extruder In the production of foamed plastic articles using a screw extruder, it is known to introduce a gaseous foaming agent into the plastic while the latter is passing through the extruder. It has been found that a foamed thermoplastic with pores or cells of u... | 03/29/1994 |
| 5297865 | Method and apparatus for the mixing of mixing material with thermoplastic material A plastics processing machine is associated with an internal mixer. Thermoplastic material is separately melted in the plastics processing machine and injected into the mixing chamber of the internal mixer, where it is mixed with fillers, caoutchouc or th... | 03/29/1994 |
| 5286104 | Quick release feeding apparatus for an extruder Disclosed is an apparatus for feeding material from a hopper to an extruder choke. The apparatus comprises a Y-shaped feeder section having an inlet portion and an outlet portion capable of being sealably connected and disconnected to the extruder choke. ... | 02/15/1994 |
| 5267787 | Screw extruder with feed roller A screw extruder has a feed roller which is parallel to and spaced laterally from the screw, a hopper feeds the material to be extruded to the screw and feed roller and to the space between them. A knife scrapes material from the feed roller to keep it cl... | 12/07/1993 |
| 5261740 | One-piece cylindrical extruder barrel assembled with eccentric converging hopper for receiving molten plastic materials A one-piece barrel for a hot-fed extruder extends from drive means at its upstream end to its discharge mouth near the downstream end of the feed screw. This one-piece extruder barrel has a split-level, in-feed opening adapted for connecting a strong, rei... | 11/16/1993 |
| 5225210 | Colored resin molder A colored resin molder having a cylindrical input member, a resin material supply mechanism for storing a molding resin material having thermoplastic properties and supplying the stored resin material through the input member, a coloring agent supply devi... | 07/06/1993 |
| 5098267 | Apparatus and method for producing and molding structural foam A single-state apparatus for injection molding structural foam articles has a resin plasticating barrel in which a cylindrical plunger reciprocates and rotates. The plunger has a screw section for plasticating resin and advancing the plasticate into a met... | 03/24/1992 |
| 5024531 | Device for continuous degassing of mixes A device for continuous degassing of a mix of liquids and solids, such as, polymer binding agents and filler materials and/or fibers is disclosed. In this invention, an inlet housing (1), which is to contain the mix, and a vacuum chamber (6) in direction ... | 06/18/1991 |
| 4937034 | Apparatus and method for cofeeding additives with polymer flake A method and apparatus for cofeeding additive concentrates in the form of pellets with a polymer flake stream flowing in a supply chute to a melt extruder. The pellets are introduced through an opening in the chute which is covered by an umbrella-like hou... | 06/26/1990 |
| 4877568 | Preparation of plastic extrudate containing an additive Pellets of polymeric material are fed into the hopper of a screw extruder to produce a molten extrudate, and a liquid additive, particularly a molten lubricant, is introduced downstream of the hopper into the root of a screw flight, particularly in the fe... | 10/31/1989 |
| 4859068 | Screw type extruder with flow chambers externally and internally of screw A screw type, polymeric material extruder with an elongated body having a cylindrical bore with a hollow screw in the bore, the screw having external and internal threads. A cylindrical body is within the internal threads, and the screw with the wall of t... | 08/22/1989 |
| 4842788 | Process of an apparatus for extruding a meltable composition Extrusion machine and process, the machine having a barrel having a feed section for receiving solid extrusion material, and containing a screw for moving the solid extrusion material through a solids conveying section to a compression section of the barr... | 06/27/1989 |
| 4832889 | Vaulted screw/grooved barrel extrusion machine, method and system Extrusion process and apparatus, the apparatus including an extrusion barrel having axial grooves which extend through the feed section and solids conveying section and disappear at the exit end of the compression section. The apparatus also includes a he... | 05/23/1989 |
| 4812048 | Material feed device for an extruder The invention relates to a material feed device for an extruder. The material feed device has a storage container (4) suspended with provision for free movement on measuring members (3) of a mass throughput weighing device. The outlet (13) of the storage ... | 03/14/1989 |
| 4770539 | Barrier screw The present invention relates to a barrier screw having improved solids conveying capability. The barrier screw comprises a feed zone having a helical primary flight defining a solid material feed path, a transition zone for converting the solid material ... | 09/13/1988 |
| 4657499 | Screw extruder apparatus adapted for mixing additive fluids A screw-type extrusion apparatus adapted for the extrusion of a viscous primary extrusion stock and particularly adapted for the mixing into said primary extrusion stock of an additive of lower viscosity, which comprises (a) an elongated barrel, (b) means... | 04/14/1987 |
| 4636084 | Removing volatiles from plastic materials delivered to an extrusion or injection molding machine A device is described which eliminates the pre-drying of particulate plastic prior to processing by an extrusion or injection molding machine. A tubular guide member directs particulate plastic under gravity into the feed inlet of the machine. During deli... | 01/13/1987 |
| 4636085 | Apparatus for removing volatiles from plastic materials delivered to an extrusion or injection molding machine A device is described which eliminates the pre-drying of particulate plastic prior to processing by an extrusion or injection molding machine. A tubular guide member directs particulate plastic under gravity into the feed inlet of the machine. During deli... | 01/13/1987 |
| 4580903 | Automatic dough parting and kneading machine An automatic dough parting and kneading machine has at least one channel between the parting chamber and the kneading apparatus. Means are provided to periodically and selectively raise the kneading apparatus into at least partial telescopic engagement wi... | 04/08/1986 |
| 4443109 | Method and apparatus for continuous feeding, mixing and blending Apparatus and method for automatically and continuously feeding, blending and mixing particulate material. In a non-mixing mode, a primary material is gravity fed through a vertical flow tube disposed in a chamber. Material flows into the chamber until an... | 04/17/1984 |
