Conveyor Patents (Class 425/DIG108)
  • Patent number: 6093014
    Abstract: In an apparatus wherein a plastic blow molding machine is operated to make hollow containers which are discharged and fall by gravity out of the machine wherein an endless moving conveyor which includes closely spaced vacuum cups is provided and positioned such that a reach of the conveyor is positioned horizontally and such that the vacuum cups face upwardly to grab and hold the plastic containers as they are discharged such that containers are held in axial alignment and circumferential orientation to one another.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 25, 2000
    Assignee: Owens-Illinois Plastic Products Inc.
    Inventors: Jack B. Anderson, James E. Gerdeman
  • Patent number: 5945137
    Abstract: In manufacturing a photo film cassette, a disk producing apparatus includes a web supplier which conveys the web from a web roll to the web conveyor. The web conveyor includes two chains which convey the web in an intermittent fashion, and which include pointed portions which serially penetrate an edge portion of the web. A heater disposed upstream from the web conveyor heats the edges of the web. At the heating/forming unit, a heating plate is lowered toward the web at the same time as the female mold is raised toward the web, and the web is squeezed between them before the heating and vacuum/air pressure forming takes. Clampers/coolers disposed upstream and downstream from the heating plate and female mold squeeze the web in fixed fashion to prevent wrinkles on the web. A web/sheet cutter device includes an upper punch above the web and a lower die under the web, which squeeze the web, and cut the web into a sheet having a plurality of disk-like portions.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: August 31, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunori Mizuno, Akira Tomita, Nobuo Sugiyama
  • Patent number: 5904884
    Abstract: A process for forming a specific length of extruded thermoplastics material trim strip for automobiles includes the step of extruding the strip directly onto an endless carrier belt moving at a speed matching the emergence speed of the extrudate. The extrudate, therefore, is less subject to stresses causing unpredictable length changes on cooling. It is therefore possible to predetermine the cooled, matured, final lengths of strip and to provide moulded end portions on-line.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: May 18, 1999
    Assignee: Decoma International Inc.
    Inventors: Earlby Wakefield, Avi Zohar, Uwe Kelbert
  • Patent number: 5744357
    Abstract: A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet system includes a pallet for carrying one or more contact lens mold assemblies throughout a contact lens production line, the pallet having one or more first recesses formed in a surface thereof for receiving either a first mold half or a complementary second mold half, the first and second mold halves when placed together constitute an individual contact lens mold assembly. A conveyor device for transporting the pallet from station to station throughout the production line facility is provided, as is a locating device formed in the pallet surface for enabling precise positioning of the pallet at one or more manufacturing stations in the production line facility.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: April 28, 1998
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Daniel Tsu-Fang Wang, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Wallace Anthony Martin, Craig William Walker, Michael Francis Widman
  • Patent number: 5525278
    Abstract: The recycling of used polyurethane foam is made possible by a process in which the starting material is first dried to a moisture content of 2 to 4% and is then filled into a multi-part mold (16, 17, 18) that defines the molded part (32). The parts of the mold (16, 17, 18) are then, with generation of the necessary compression pressure of below 20 N/mm.sup.2, pressed together and locked. These molds (16, 17, 18) that are subject to the compression pressure are heated in a tunnel furnace (20) so that the molding material reaches a temperature of approximately C. After a predefined holding time, the molds (16, 17, 18) can be opened under pressure and the molded parts (32) can be removed. Molded parts (32) with a thickness of 42 mm and of corresponding size have been produced successfully with this process. Instead of the molds (16, 17, 18), it is also possible that a two-part tool is used.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: June 11, 1996
    Assignee: Hecker und Krosch GmbH & Co. KG
    Inventors: Karl Krosch, Barthel Krosch, Michael Krosch, Robert Ecker
  • Patent number: 5439096
    Abstract: Provided is a dough slice conveying apparatus in which a dough slice can peel off from the reversing part in the terminal of a front side conveyer belt without being deformed and without being dropped between the front side conveyer belt and the rear side conveyer belt, and is then transferred onto and conveyed by the rear side conveyer belt without being folded but in an unfolded condition. The dough slice conveying apparatus is provided with a knife edge having a front end part whose curvature is 2.1T to 11.7T where T is a thickness of the dough slice, and the space between the reversing part in the terminal of the front side conveyer belt and the reversing part in the start end of the rear side conveyer belt is set to less than 0.1R where R is a minimum diameter of the dough slice.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: August 8, 1995
    Assignee: House Food Industrial Co., Ltd.
    Inventors: Teruo Shigematsu, Iwami Hirota
  • Patent number: 5372774
    Abstract: The invention concerns apparatus for molding tube (20) utilizing a travelling mold tunnel. The tunnel is made up of mold blocks (16) each comprising parts (13, 15) which are hinged together to be closeable to form the tunnel and openable to release tube from the tunnel. The opened mold blocks (16) from the downstream end of the tunnel are opened and returned to the upstream end without change in their orientation to reform the tunnel about an extrusion nozzle (18) for thermoplastic extrudate.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: December 13, 1994
    Assignee: Corma
    Inventor: Manfred A. A. Lupke
  • Patent number: 5044920
    Abstract: Known heat treatment apparatus for continuously advanced material, for example for extruded strip to be vulcanized, include an endless transporting element which is in the form of a belt of steel or of coated glass fiber fabric according to the thermal load. Such conveyor belts have an adverse influence on the engaging surface of the extruded strip and cause surfae defects. The invention aims to achieve a largely defect-free end product and it includes a transporting element in which a plurality of rotatably mounted cylindrical rollers are arranged one behind the other between two mutually parallel chains, each roller being rotated by friction forces on at least one stationary strip as the roller is carried along by the chains.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: September 3, 1991
    Inventor: Jurgen Gerlach
  • Patent number: 5032072
    Abstract: In a device for making shaped objects from plastic refuse plasticized in a roller extruder under pressure and ejected from the nozzle of the extruder a plurality of molds are provided transported to the extruder, filled thereby and transported therefrom. Each mold has at the end face a plate having a filling opening. During the filling process this plate sealingly overlaps the surface surrounding the nozzle so that the mold can be filled with plasticized plastic under the pressure generated in the roller extruder.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: July 16, 1991
    Inventor: Uwe Heuschkel
  • Patent number: 4961888
    Abstract: A process for molding thermosetting plastic parts in a more efficient manner involving less cost and a higher production output, includes sequentially filling molds with a thermosetting plastic material in a continuous and uniform manner, passing the molds sequentially through an elongated heating chamber, removing the parts from the molds, and returning the molds for reuse. Also, to increase the versatility of the process, a plurality of independently driven conveyor assemblies are positioned within the heating chamber so that a number of different parts having different sizes, configurations and/or material may be fabricated concurrently with one another.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: October 9, 1990
    Assignee: Liquid Molding Systems, Inc.
    Inventor: Paul E. Brown
  • Patent number: 4929164
    Abstract: Compound press suitable to autonomously perform all operations necessary to mold pieces, including mechanisms to feed the pieces to be molded, and molding of same and to discharge the molded pieces.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: May 29, 1990
    Assignee: Norda S.P.A. Via Vallecamonica
    Inventor: Gianfranco Duina
  • Patent number: 4765940
    Abstract: A conveyor-transfer apparatus for transferring artificial Christmas tree piquets (branches) from a first conveyor on which the piquets are parallel to the direction of travel of the conveyor to a second conveyor where they are arranged transverse to the direction of conveyor travel whereby their ends can be tapered. This is accomplished automatically without the use of manual labor.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: August 23, 1988
    Assignee: American Technical Industries, Inc.
    Inventors: Peter A. Circelli, Adolph K. Praemassing
  • Patent number: 4751029
    Abstract: A system for molding elongated ribbon-like products from thermoplastic materials utilizing a plurality of molds which are moved in tandem along a production line. As the molds are moved along the line at successive stations they are, while open, thermally adjusted to a temperature suitable for forming the product to be molded and then a ribbon of plastic is deposited in them. They are then closed and cooled and reopened and the molded product removed. The system utilizes only enough molding pressure to assure distribution of the plastic to all parts of the mold cavity and shaping of the molded product to the geometric design of the mold. The system includes a transfer means for the molds which returns the emptied molds for recycling through the molding process.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: June 14, 1988
    Assignee: Nicholas Plastics, Inc.
    Inventor: Clifford D. Swanson
  • Patent number: 4692110
    Abstract: An apparatus for stretching plastic dough is provided. A plurality of conveyors arranged in series and a plurality of rollers disposed above the conveyors cooperatively act to stretch dough fed therebetween. The plurality of rollers are freely rotatable and the shafts thereof are fixed to connecting arms which can reciprocate above the conveyors to make the dough less thick.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: September 8, 1987
    Assignee: Rheon Automatic Machinery Co., Ltd.
    Inventor: Torahiko Hayashi
  • Patent number: 4495132
    Abstract: An apparatus for treating the edges of pre-fired brick includes an extruder for extruding a column of clay and a wire cutter assembly for severing the column into individual bricks having their longitudinal axes substantially perpendicular to the direction of extrusion. The bricks are transported to a first conveyor where they are turned and directed to a side conveyor. As the pre-fired bricks move on the side conveyor, they move in a single file arrangement with their longitudinal axes substantially parallel to the direction of movement. The upper longitudinal edges of the pre-fired brick are treated by engagement with a pair of canted rollers to give the edges of the brick an irregular appearance. The bricks are then reoriented by a pair of rotating tables which direct the bricks onto a third conveyor with the axes of the brick being substantially perpendicular to their direction of travel.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: January 22, 1985
    Assignee: Texas Industries, Inc.
    Inventor: Joseph A. Johnson
  • Patent number: 4038063
    Abstract: A continuous process for the manufacture of cellular ceramic product. Ceramic feed material is transported successively through a preheat kiln section, through a foaming section whereat foaming agent mixed with the ceramic feed material is activated, and into a drawing kiln section. An elongate hollow product can be formed by drawing the foamed ceramic while soft around and past a hollow mandrel to form an elongate hollow cylindrical member.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: July 26, 1977
    Assignee: E. C. P., Inc.
    Inventors: Tudor Williams, John D. Bost