Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7309224 | Device for preparation of plastic materials for recycling purposes A device for the preparation of plastics material for recycling purposes has a container (1) with an upper inlet opening (10) for the material. In the container (1), at least one tool (14) rotates about the vertical container axis. This t... | 12/18/2007 |
| 7291001 | Device for preparing plastics material A device for the preparation of plastics material, in particular thermoplastic plastics material, has a receiving container (1) for the material, the interior of the receiving container (1) having tools (21) provided therein which are arranged o... | 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 |
| 7278776 | Apparatus and method for injecting a liquid dye into a polymer melt An apparatus and a method for injecting a liquid dye into a polymer melt, which includes a metering pump with a metering inlet and a metering outlet. The metering inlet connects to a dye tank and the metering outlet connects to a polymer melt carrying component. To ... | 10/09/2007 |
| 7275857 | Apparatus for treating plastics material A device for treating plastics material, in particular thermoplastic plastics material, has a receiving container (1) which has a base (15) and lateral walls (14). In the receiving container at least [one] disc (17) is arranged close to t... | 10/02/2007 |
| 7237943 | Dynamic fluid mixer A dynamic mixer in which two elements are rotatable relative to each other about a predetermined axis and between which is defined a flow path extending between an inlet for materials to be mixed and an outlet. The flow path is defined between surfaces of the elemen... | 07/03/2007 |
| 7195187 | Rolling mill system A rolling mill system has oppositely driven, temperature-controlled first and second rolls, each having a first roll half with a first end face, a second roll half with a second end face, and a roll center. The first roll has a peripheral surface with open grooves a... | 03/27/2007 |
| 7132071 | Method of molding using a plunger machine with a tapered bore A method of molding reinforced polymer compositions using a molding machine with a tapered bore is provided. The method has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machi... | 11/07/2006 |
| 7083321 | Single screw extruder The invention relates to a single screw extruder comprising a barrier screw and a barrel in which the barrier screw is held in a manner that permits to rotate and comprising at least one feed zone longitudinal section and at least one melting zone longitudinal secti... | 08/01/2006 |
| 7083320 | Kneading apparatus and method, including selectable supply ports, for kneading rubber or rubber compositions A continuous kneading apparatus and method are provided wherein discharge ports are provided at a plurality of positions of the barrel to discharge a kneaded product, and one of the plurality of the discharge ports is selected according to a desired kneading conditi... | 08/01/2006 |
| 7080935 | Multi-screw extruder The invention relates to a multi-shaft extruder for the continuous treatment and/or processing of bulk material, especially a powdery, granular or flocculent product, comprising a plurality of shafts (3) which are arranged in a crown-like manner in a cavity (... | 07/25/2006 |
| 7077642 | Plunger molding machine with tapered bore and thermal transfer fins A plunger machine for molding reinforced polymer compositions is provided. The plunger machine has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine includes a barrel hous... | 07/18/2006 |
| 7048431 | Plastic processing machine for producing fiber-containing thermoplastics A plastics processing machine for producing fiber-containing thermoplastics includes an extruder, and a scale assembly having a weighing plate for determining an amount of fiber to be supplied to the extruder. A fiber feeding device supplies fibers from a take-off u... | 05/23/2006 |
| 7040797 | Method of producing composition comprising thermoplastic resin and rubber Provided is a method of producing a composition comprising a thermoplastic resin and a rubber, wherein a solid rubber is molten by a rubber kneading machine and fed into an extruder, and the molten rubber is melt-kneaded with the thermoplastic resin in the extruder.... | 05/09/2006 |
| 7040798 | Ring extruder feed The invention relates to a multi-screw extruder for the continuous treatment and/or processing of a bulk material, especially a product in powder, granular or flake form, comprising several shafts (3) which are arranged in a ring shape in a cavity (1) ... | 05/09/2006 |
| 7037102 | Plunger molding machine with tapered bore and thermal transfer fins A plunger machine for molding reinforced polymer compositions is provided. The plunger machine has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine includes a barrel hous... | 05/02/2006 |
| 7025491 | Homogenizing and/or dispersing device comprising endless screws An apparatus for homogenizing and/or dispersing at least one viscous substance and at least one solid and/or at least one other substance of different viscosity includes in a space in a housing axis-parallel rotatable shafts disposed along a circle with equal centra... | 04/11/2006 |
| 7014667 | Preparation of additive mixtures for mineral oils and mineral oil distillates The present invention provides a continuous process for preparing additive mixtures for mineral oils and mineral oil distillates, comprising A) a cold flow improver for middle distillates, and at least one further component selecte... | 03/21/2006 |
| 7014353 | Plasticating screw and apparatus A rotatable screw for moving material in a plasticating process along an axis through a conduit from an inlet to an outlet. The screw having a feed section, barrier melting section, reorientation section and metering section disposed sequentially downstream. The scr... | 03/21/2006 |
| 6913380 | Continuous preparation of heat-vulcanizable silicone compositions High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuou... | 07/05/2005 |
| 6908573 | Polymeric resin blends and methods of manufacture thereof A screw for a multiple screw extruder comprises at least two conveying sections for transporting a composition comprising a polymeric resin from the feed end to the discharge end of the extruder; and at least two mixing sections comprising screw elements having two ... | 06/21/2005 |
| 6883953 | Apparatus for pre-treatment and subsequent plastification or agglomeration of synthetic plastic materials An apparatus for pre-processing and subsequent plastification or agglomeration of synthetic plastic materials, in particular thermoplastic waste plastics for recycling purposes, has a receptacle (1) in which at least one comminuting tool (6) circulates... | 04/26/2005 |
| 6817851 | Method and apparatus for the manufacture of fiber-reinforced plastic compositions An apparatus for the manufacture of fiber-reinforced plastic compositions. The apparatus addresses the disadvantages of previous methods and apparatuses for the manufacture of fiber-reinforced plastic compositions using a plasticizing extruder. Some embodiments of t... | 11/16/2004 |
| 6776596 | Apparatus for the manufacture of fiber-reinforced plastic compositions The invention is addressed to the problem of providing a method whereby a mixing of bulk material containing fibers (fiber material) and plastic granules for the plasticate extrusion of long fiber reinforced thermoplastics (LFT) will be possible during the melting p... | 08/17/2004 |
| 6604848 | Method for continuously mixing polyester resins In the case of thickening a feed resin without pre-drying, a device is taught to enhance the thickening effect. The device includes a chamber 4 having a mixing rotor therein for continuously mixing a resin between a feed port 2 and a discharge port 3. A p... | 08/12/2003 |
| 6523988 | Processing food or fodder A device for processing foodstuffs or feedstuffs exhibits a conditioning device (2, 3) encompassing a mixing chamber (3) over a retention chamber (2), which are interconnected. Each chamber has a rotor shaft (4, 6) that extends lengthwise into the chamber... | 02/25/2003 |
| 6508581 | Extrusion apparatus with rotatable winding socket An extrusion apparatus is provided having an extrusion worm with a threaded exterior passage and rotatably driven by a drive shaft operatively couplable with a drive motor for driving rotation of the drive shaft. A feed in device for feeding in strip form... | 01/21/2003 |
| 6305838 | Process and apparatus for preparing pigment flush The present invention provides a process for continuous production of pigment flushes and an apparatus for carrying out the process. In the process of the invention, the pigment press cake is first fluidized. The fluidized press cake and a hydrophobic liq... | 10/23/2001 |
| 6273599 | Process for preparing pigment flush The present invention provides a process for continuous production of pigment flushes and an apparatus for carrying out the process. In the process of the invention, the pigment press cake is first fluidized. The fluidized press cake and a hydrophobic liq... | 08/14/2001 |
| 6261074 | Method and apparatus for making a multi-colored injection-molded product A method and apparatus for making a multi-colored, injection molded product. A nozzle which has at least two separate feed passageways receives the primary resin stream from the primary feed tube. Two separate fluid-operated cylinders add different colora... | 07/17/2001 |
| 6179458 | Forming a solution of fluids having low miscibility and large-scale differences in viscosity This invention relates to mixing two substantially immiscible fluids having substantial viscosity differences into a single phase solution. The invention particular includes a mixer comprising a specially designed conveyor flights to provide shear mixing ... | 01/30/2001 |
| 6168306 | Adapter member for connecting extruders A process and apparatus for processing polyvinylacetate and other similar ingredients of a gum base or chewing gum product are disclosed. The ingredient materials are separated into individual pieces by a lump breaker and conveyed through a pneumatic conv... | 01/02/2001 |
| 6086239 | Extruder with supply conduit for supplying even flow of material An extruder including: (a) at least two concentric stators including (i) an inner stator having at least an outer surface that is at least mostly conical and (ii) an outer stator having at least an inner surface that is at least mostly conical; (b) at lea... | 07/11/2000 |
| 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 |
| 6057514 | Removable hopper with material shut-off A gravimetric weigh scale blender having a plurality of hoppers 41, 42 and 43 discharging into a weigh chamber 14. The hoppers are funnel-shaped, each terminating in a discharge opening which permits flow of material from the hopper through a metering dev... | 05/02/2000 |
| 6045348 | Hopper structure for feeding powdery materials The present invention is directed to a hopper structure for feeding a powdery material adapted to enable gas, etc., generated in a plasticizing cylinder to escape irrespective of the state of feed of the powdery material within a hopper. To this end, the ... | 04/04/2000 |
| 6007236 | Weigh scale blender and method A gravimetric blender including a frame, a weigh bin, a device connected to the frame for sensing weight of the bin and any material contained therein, a mix chamber below the bin, connected to the frame, a piston for selectably releasing material in the ... | 12/28/1999 |
| 5908592 | Preparation of high fatigue endurance liquid silicone rubber composition A liquid silicone rubber base including (A) an alkenyl-containing organopolysiloxane, (B) a reinforcing silica filler, (C) a mixing assistant in the form of a silanol-containing compound, (E) an organohydrogen polysiloxane, (f) a platinum catalyst and opt... | 06/01/1999 |
| 5897203 | Dough portioning and kneading machine A dough portioning and kneading machine comprises two dough hoppers separated from each other, a conveying chamber, in which a conveying piston is displaceably arranged, being disposed downstream of each dough hopper. At least one metering chamber is disp... | 04/27/1999 |
| 5887972 | Extruder for plastic granules An extruder for melting plastic granules which is designed as a two-stage system in an integrated structural unit with an extruder chamber having an extruder screw in a heatable housing, as well as with a drying chamber having a heated conveying screw wit... | 03/30/1999 |