Means Include Single Material Inlet Communicating With Plural Cavities Patents (Class 249/110)
  • Patent number: 11114313
    Abstract: A mold chase is provided, including a lower mold support and an upper mold support which are configured to be pressed together to form a mold cavity therebetween for receiving a wafer level substrate. The mold chase also includes multiple gates and at least one vent disposed along the periphery of the mold cavity. The gates are configured to allow a mold material to be injected into the mold cavity, and the vents are configured to release gas from the mold cavity. The distance between one of the gates and the closest vent is less than the diameter of the mold cavity.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 7, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsien-Wen Liu, Po-Hao Tsai, Yi-Wen Wu, Shin-Puu Jeng
  • Patent number: 10568330
    Abstract: A baking pan for cooking a plurality of cupcakes or muffins is provided, the pan including a first portion and a second portion separable from the first, where the first portion represents a form for at least half of the sidewalls of the cupcakes or muffins, and where the second portion represents a form for at least part of the sidewalls not formed by the first portion and for the bottoms of the cupcakes or muffins.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 25, 2020
    Inventor: Marvin Levy
  • Patent number: 10456327
    Abstract: A package has a plurality of seamless compartments coupled together. A different one of the plurality compartments each includes a different respective one of a plurality of respective void spaces and a different respective one of a plurality of respective void space delimiting surfaces. A different one of a plurality of fill entries each forms a fluent entry into a different respective compartment's void space. At least one fill entry of said plurality is in an elastomeric portion of said package, and the at least one fill entry has a largest cross sectional area which is equal to or less than 25% of a largest cross sectional area of the compartment having the respective void space for which the fill entry forms the fluent entry. Each void space delimiting surface follows an outline of a separate 3D pill shape.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: October 29, 2019
    Inventor: Craig Robertson
  • Patent number: 10459457
    Abstract: A device for limiting or keeping constant a quantity of fluid flowing therethrough, includes: a housing with a front chamber and a rear chamber; a partition arranged in the housing with two or more openings; and a flow limiting element arranged in one or both openings. The flow limiting element includes a housing provided with an inlet, an outlet and a throughflow opening; and a resilient plate-like valve element mounted in the housing, substantially able to close the throughflow opening by resilient movement in the direction of a valve seat arranged in the housing adjacently of the throughflow opening. The valve element is fixed on one side and can move resiliently on the opposite side in the direction of the valve seat. A mould produces one or more injection-moulded products. The injection-moulded product is a flow limiter for limiting the force of the flow of a fluid flowing therethrough.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 29, 2019
    Assignee: VITAPLUS NEDERLAND B.V.
    Inventor: Stijn Van Der Upwich
  • Patent number: 10319635
    Abstract: A semiconductor structure includes a semiconductor device located over a substrate, a dielectric layer stack of at least one first dielectric material layer, a silicon nitride layer, and at least one second dielectric material layer overlying the semiconductor device, and interconnect structures including metallic lines and metallic vias and embedded within the dielectric layer stack. The interconnect structures also include a metal silicide portion that directly contacts the silicon nitride layer. A combination of the silicon nitride layer and the metal silicide portion provides a continuous hydrogen barrier structure that is vertically spaced from the top surface of the semiconductor device.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 11, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Yosuke Nosho, Han-Min Kim
  • Patent number: 10279439
    Abstract: An over-molded valve stem for a valve assembly includes a rigid inner member and a unitary elastic cover molded over the inner member. The inner member includes a main section and an arm extending from the main section. The cover includes a main cover portion, an arm cover portion, and an end portion, with the end portion being spaced from the main cover portion by the arm cover portion. The main cover portion is disposed over the main section with the end portion and main cover portion defining diameters that are larger than the diameter of the arm cover portion. The end portion can include an integral seal member for engaging with a bore of the valve assembly. A method of making the valve stem involves molding the cover about the inner member such that a parting line doe not axially extend across sealing surfaces.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 7, 2019
    Assignee: Humphrey Products Company
    Inventor: Thomas H. Tinholt
  • Patent number: 10183388
    Abstract: A cuff-blade attachment bushing removal tool system includes an alignment plate comprising alignment holes defined through the alignment plate in a pattern of a plurality of bushing holes of a blade root, a bladder plate connected to the alignment plate, and a bladder positioned on the bladder plate such that a gap is formed between the bladder and the alignment plate to receive a blade root to align the alignment holes and the bushing holes of the blade root, wherein the bladder is transitionable between an uninflated position where the blade root can be inserted into the gap and an inflated position where the blade root is clamped between the bladder and the alignment plate.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 22, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Scott O. Smith, Sven R. Lofstrom, Philip Petering
  • Patent number: 9950458
    Abstract: This invention relates generally to an apparatus for casting a portion of a tire or other article of manufacture, and, more specifically, to an apparatus that has a gate design, that has a plunging nozzle with a waste reservoir for separating off-ratio material before it enters the cavity that forms a portion of the tire or other article of manufacture. The design may further include a passage that connects the runner to the waste reservoir as-well as an air vent that allows trapped gas or air to exit the waste reservoir as it fills with waste material, a valve that is operative!'/associated with the passage for closing and opening the passage at appropriate times, and a nozzle constructed from two independently translating components for initially introducing material into the waste reservoir and subsequently into the runner.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 24, 2018
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Brian D Wilson
  • Patent number: 9937646
    Abstract: A low constant pressure injection molding machine forms molded parts by injecting molten thermoplastic material into a mold cavity at low constant pressures of 6,000 psi and lower. As a result, the low constant pressure injection molding machine includes a mold formed of easily machineable material that is less costly and faster to manufacture than typical injection molds.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: April 10, 2018
    Assignee: IMFLUX, INC.
    Inventors: Gene Michael Altonen, Charles John Berg, Jr., Ralph Edwin Neufarth, Gary Francis Schiller
  • Patent number: 9941188
    Abstract: An assembly includes an integrated circuit chip and a plate with at least one heat removal channel arranged between the chip and the plate. Metal sidewalls are formed to extend from one surface of the chip to an opposite surface of the plate. The assembly is encapsulated in a body that includes an opening extending to reach the channel. The plate may be one of an interposer, an integrated circuit chip, a support of surface-mount type, or a metal plate.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: April 10, 2018
    Assignees: STMicroelectronics (Crolles 2) SAS, SOCPRA Sciences et GĂ©nie S.E.C.
    Inventors: Louis-Michel Collin, Luc Guy Frechette, Sandrine Lhostis
  • Patent number: 9917091
    Abstract: A method of manufacturing a semiconductor device, includes: forming an insulating film on a first surface of a semiconductor substrate; and forming a hydrogen supply film on a second surface facing the first surface of the semiconductor substrate, the hydrogen supply film containing one or more of silicon oxide, TEOS, BPSG, BSG, PSG, FSG, carbon-containing silicon oxide, silicon nitride, carbon-containing silicon nitride, and oxygen-containing silicon carbide.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 13, 2018
    Assignee: SONY CORPORATION
    Inventors: Katsuhisa Kugimiya, Kenichi Murata, Hitoshi Okano, Shigetaka Mori, Hiroyuki Kawashima, Takuma Matsuno
  • Patent number: 9911801
    Abstract: A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: March 6, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Tatsuya Arao, Munehiro Azami
  • Patent number: 9844895
    Abstract: A mould lifting device is suitable for use in lifting and rotating a middle mould. At each of two lateral surfaces of the middle mould is provided a pivot portion. The mould lifting device includes: a platform, two longitudinal guide assemblies, two transmissions, a power assembly, two lifting members, two push members, two pivot arms, and two covers. When the pivot arms lift and rotate the middle mould, the lifted portion of the covers will not be pushed by the lifting portions of the lifting members anymore, and the covers will naturally pivot downward by gravity to make the cover portions cover the openings of the restricting grooves, which prevents the disengagement of the pivot portions of the middle mould from the restricting grooves, and thus improving the stability and security of the middle mould during the course of lifting and rotation.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: December 19, 2017
    Assignee: Tien Kang Co., Ltd.
    Inventor: David Huang
  • Patent number: 9669572
    Abstract: A molding process for creating a decorative pull has two separate molding steps. In the first molding step, a first top mold portion, and a bottom mold portion are used. The bottom mold portion has a mold compartment with an indentation in the bottom. An end of a soft string is placed in this compartment with the end disposed over the indentation. The first top mold portion is closed over the bottom mold portion and molding material is injected. The molding material enters the mold cavity and flows into the indentation to cover the ends of the string entirely, to create a first molded component. A second top mold portion is then placed over the bottom mold potion and molding material is then injected into the second mold cavity formed by the second top mold portion to cover the first molded component and create a molded pull for use on zippers or other items.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 6, 2017
    Assignee: Duraflex Hong Kong Limited
    Inventor: Te Chien Chen
  • Patent number: 9662835
    Abstract: A printing head module and a three dimensional (3-D) printing apparatus using the same are provided. The 3-D printing apparatus includes a base and the printing head module. The printing head module is disposed above the base and includes a printing head and at least one material spool. The printing head includes a plurality of assembling pieces assembled with each other to form the printing head and define a nozzle of the printing head. Each of the assembling pieces includes at least one material-supply groove. The material-supply grooves of any two adjacent assembling pieces are located corresponding to each other to form at least one material-supply channel together. Each material spool is connected to the material-supply channel for providing at least one fluid material to the material-supply channel. The fluid material is transmitted via the material-supply channel to be dispensed on the base.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: May 30, 2017
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc., Cal-Comp Electronics & Communications Company Limited
    Inventor: Kwan Ho
  • Publication number: 20100193151
    Abstract: A mould for stratified moulding with metalostatic pressure compensation formed by one or more stackable moulds formed by a tapping cavity of a generally rhomboidal truncated cone shape and one or more moulding cavities connected to the tapping cavity by one or more supply conduits; in such a way that each tapping cavity of each stackable mould interconnects to form a central filling collector, and each tapping cavity compensates for the metalostatic pressure of the molten metal as it is drained by the central filling collector to achieve generally uniform filling of each of the moulding cavities of each of the stackable moulds. In addition, the generally rhomboidal double truncated cone shape serves to keep a temperature distribution in the mould during the pouring of molten metal.
    Type: Application
    Filed: August 29, 2007
    Publication date: August 5, 2010
    Inventor: Enrique Alvarado Murillo
  • Patent number: 7654502
    Abstract: An apparatus for manufacturing simulated stone products is provided. The apparatus includes a mold having mold cavities. The mold cavities have a first section and a second section that intersect to form a cavity angle. A hopper is configured to introduce castable material into the mold. The hopper and the mold are moveable with respect to each other, enabling them to be selectively engaged with each other. The hopper includes a first funnel wall configured to contact the top of the first mold cavity and to introduce castable material into the top opening of the first section. The hopper has a second funnel wall configured to contact the second section and act as a barrier to close the top opening of the second section of the mold cavity.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 2, 2010
    Assignee: Owens Corning Intellectual Capital, LLC
    Inventors: Robert E. Embrey, Douglas H. Walden
  • Publication number: 20090020681
    Abstract: An ice tray is provided that prevents the overflow or splashing of water or thin ice out of the ice tray as water is supplied to the ice tray, or when the ice tray is shaken by an external force. The ice tray may include a plurality of receiving portions that receive water for freezing into ice pieces. An overflow preventing portion may extend upward from upper edges of the receiving portions to form a barrier to water flowing out of the ice tray. Alternatively, the receiving parts may be positioned within a corresponding plurality of location parts having water proofing walls extending upward therefrom to inhibit the unintentional flow of water or thin ice out of the receiving portions of the ice tray.
    Type: Application
    Filed: June 19, 2008
    Publication date: January 22, 2009
    Inventors: Tae Hee LEE, Hong Hee Park, Joon Hwan Oh, Young Jin Kim, Kwang Ha Suh
  • Publication number: 20080050463
    Abstract: A stacked type tooling is formed by stacking a plurality of slices. Each slice has a plurality of patterned openings. When these slices are stacked together, The patterned openings form at least a cavity. Unnecessary volume of the tooling can be avoided to shrink the size of the tooling and let the tooling be lightweight. Moreover, the manufacturing cost and time of the tooling can be substantially reduced.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Inventor: Chen-Yang Lin
  • Patent number: 6457512
    Abstract: Fully dense long ingots are produced by the bottom pouring method and apparatus of the present invention. A solidification sequence is achieved which is conducive to eliminating solidification shrinkage and piping. The set-up of the bottom poured ingot molds facilitates a solidification sequence starting from the top and then down the ingot mold and then up the down pour pipe.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: October 1, 2002
    Assignee: Concurrent Technologies Corporation
    Inventors: Kuang-O Yu, Alex Simkovich
  • Patent number: 6322044
    Abstract: An ice cube bag comprises two sheet-shaped foil layers (12, 14; 12′, 14′) defining an outer periphery. A peripheral joint (20, 21, 21a, 21b) extends along the major part of the outer periphery of the foil layers, with the exception of a peripheral area constituting an inlet aperture of the bag (10). Their peripheral joint joins the foil layers together defining an inner chamber which is divided into several ice cube compartments defined by separate joints (22, 23, 24, 25, 29) of the foil layers. An inlet channel extends from the inlet aperture to the inner chamber of the bag hereby allowing admission from the surroundings to the inner chamber of the bag through the inlet channel.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: November 27, 2001
    Assignee: Unigreen International A/S
    Inventor: Erling Vangedal-Nielsen
  • Patent number: 5909984
    Abstract: A pile forming system and method for forming a pile. The pile forming system comprises a top pile forming member, a bottom pile forming member, and an end plate assembled together to provide a complete pile form which can then be filled with concrete to form the pile. Additionally, the pile forming system incorporates a tip forming member which can be secured to one end of the pile form to form a sharp tip at one end of the pile facilitating driving the pile into a subsurface. Additional pairs of top and bottom pile forming members may be joined end to end to form longer piles. After the desired pile form is assembled, concrete is poured or pumped into the pile form through openings on the top surface of the pile form. Preferably, reinforcement bars or rebars which are coated with a non-permeable coating to prevent rust are placed in the pile form before the pouring of the concrete.
    Type: Grant
    Filed: February 15, 1997
    Date of Patent: June 8, 1999
    Inventor: Mike R. Matthews
  • Patent number: 5846446
    Abstract: A first ice making bag (110) comprises a first envelope (112) which comprises a first envelope top (112T) and a first envelope bottom (112B). The first ice making bag (110) further comprises a first binding (114) which comprises a first peripheral binding (114A). A first left peripheral opening binding (114AL), and a first right peripheral opening binding (114AR). The first left peripheral opening binding (114AL) and the first right peripheral opening binding (114AR) form a gap therebetween. The first binding (114) functions to form a pocket between the first envelope top (112T) and the first envelope bottom (112B). The first ice making bag (110) further comprises at least one first opening binding (114B) forming an air channel between the first left peripheral opening binding (114AL) or the first right peripheral opening binding (114AR) and the at least one first opening binding (114B).
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: December 8, 1998
    Inventor: George W. Jackson
  • Patent number: 5747830
    Abstract: The invention provides a semiconductor device having a low threshold voltage and capable of operating at a high speed, and also provides an active matrix display device including such a semiconductor device. The invention also provides a method of producing such a semiconductor device and an active matrix display device. In the invention, a hydrogen supply layer is disposed above semiconductor layers in such a manner that the hydrogen supply layer is apart from the semiconductor layers. A hydrogen diffusion barrier layer for preventing hydrogen from diffusing outward from the hydrogen supply layer is disposed on the hydrogen supply layer in such a manner that the hydrogen diffusion barrier layer is in direct contact with the hydrogen supply layer. The hydrogen diffusion barrier layer is preferably made of a high melting point metal or a compound thereof. The hydrogen supply layer is preferably formed by depositing SiN or amorphous silicon by means of plasma CVD.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: May 5, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Okita
  • Patent number: 5592986
    Abstract: The apparatus comprises first and second mold blocks, each having a pair of matching mold half cavities and being adapted to be held in assembled relationship with the half cavities in abutting register, to define, a pair of full cavities. The apparatus further includes a sprue cutter plate pivotally mounted on the upper surface of one of the blocks. The sprue plate also has (i) a pair of orifice holes in a lower planar surface spaced so as to be aligned with the tops of the full cavities, (ii) a pair of spaced apart countersinks recessed into an upper planar surface and in respective connecting register with the pair of orifice holes, and (iii) a trough in the upper planar surface connecting the pair of countersinks.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: January 14, 1997
    Inventors: Armande P. Auger, Roger L. Barnes
  • Patent number: 5527012
    Abstract: A freezing mould bag for ices is formed from two plastic foils, and has a segmented inlet channel, two closure valve flaps extending within the interior of the bag, and a constriction which provides a venturi effect closing the bag at the constriction.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: June 18, 1996
    Assignee: Schur Consumer Products A/S
    Inventors: Erik K. Vinkel, Erling Vangedal-Nielsen
  • Patent number: 5349136
    Abstract: A mold tool for forming an electronic component having a semiconductor chip sealed on a supporting member by a resin-molded package, includes an upper mold having an upper cavity and a lower mold having a lower cavity, the package being molded in the cavities. Upper and lower gates are arranged at opposing surfaces of the molds and symmetrically formed with respect to a parting face of the mold tool to connect with the cavities. A method for forming the component includes the steps of inserting the supporting member with the chip in the cavities of the molds of the mold tool, clamping the molds, injecting molten resin into the cavities of the clamped molds through the upper and lower gates, cooling the molten resin in the cavities, and separating the molds from each other and removing the component from the cavities.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: September 20, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuhiro Abe, Nakanishi Itsuto, Ariyoshi Hideho, Asao Iguchi
  • Patent number: 5204122
    Abstract: A mold system for use in resin encapsulation molding includes a cavity serving as a resin molding section in which small size electric elements such as semiconductor devices and electrical parts are encapsulated with a synthetic resin. The system also incudes at least one pot for receiving the synthetic resin material and melting the received synthetic resin material by heating, a cull section communicating with the pot and formed facing to an opening end face, and a conveying passage for communicating the cull section and the cavity to convey molten resin material through the cull section. The synthetic resin material is placed in the cavity and is heated to melt therein, and is extruded out of the pot by a plunger disposed in an axial direction of the pot. The inner bottom of the cull section facing to the opening end face of the pot is formed unevenly.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: April 20, 1993
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Akira Konishi
  • Patent number: 4944483
    Abstract: An apparatus for forming a fiber reinforced slab gel for use in electrophoresis including a box shaped casing having a first groove at the center of an inner lower end surface, and a cover having a second groove for hermetically closing an open area of the casing. A plurality of slab gel forming plates are laminated in the casing with fiber reinforced cores interposed between adjacent slab gel forming plates. An aqueous solution of an organic monomer is poured into the casing through a pouring pipe in the cover and the monomer is polymerized to form the gel slabs. Air in the casing is vented to the outside when the monomer is introduced into the casing.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: July 31, 1990
    Inventor: Hideyuki Nishizawa
  • Patent number: 4883251
    Abstract: A container for making ice cubes having a generally prismatic hollow configuration, a front side of which includes rows of truncated pyramidal cavities, the back wall having mutually perpendicular stacking ribs for mating with the cavities of a juxtaposed container, and the top wall having a fill and emptying aperture closed by a screw cap or stopper. The container also has a fill marking on one of the sides and flow channels between the cavities.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: November 28, 1989
    Inventor: Jorge F. Manas
  • Patent number: 4818204
    Abstract: A metal mold for plastic molding a semiconductor device by a transfer-molding method with the use of thermo-hardening plastics. The mold includes a pot section into which plastic is injected; a cavity section where a product is formed; a runner section constituting a path for the plastic from the pot section to the cavity section; a gate section provided between the runner section and the cavity section so as to reduce the cross-sectional area for the flow of the plastic which flows therethrough from the runner section to the cavity section; and a flow restrictor section provided in the path of the runner section so as to reduce the cross-sectional area of the flow of plastic.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: April 4, 1989
    Inventors: Osamu Nakagawa, Koji Yanagitani, Ikuo Sasaki, Toshinobu Banjo
  • Patent number: 4607680
    Abstract: A method for moulding multiple castings in which each mould is fed from a source of molten metal through a thin slit the width of which lies in the range 1.25 mm down to 0.25 mm. The cast articles can easily be removed from the runner and riser system after casting without a machining operation so that the casting moulds can be packed closer together and more castings can be produced from each mould assembly. The thin slit also acts as a filter. A particular mould assembly seen in FIG. 2 is cylindrical and comprises a plurality of wedge-shaped mould segments 2 having mould cavities 4 in abutting faces. A central runner passage 6 is formed when the mould segments are assembled and the metal flows into the mould cavities through narrow slits 10 in one edge of each mould. After casting and removal of the mould the narrow flashing formed in the slits can easily be broken to remove the cast articles from the metal formed in the central runner passage.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: August 26, 1986
    Assignee: Rolls-Royce Limited
    Inventors: David Mills, Alan D. Kington, Rodney J. Close
  • Patent number: 4516621
    Abstract: In a mould assembly for multiple castings each mould is fed from a source of molten metal through a thin slit the width of which lies in the range 1.25 mm to 0.25 mm. The cast articles can be easily removed from the runner and riser system after casting without a machining operation so that the casting moulds can be packed closer together and more castings can be produced from each mould assembly. The thin slit also acts as a filter. A particular mould assembly seen in FIG. 2 is cylindrical and comprises a plurality of wedge-shaped mould segments 2 having mould cavities 4 in abutting faces. A central runner passage 6 is formed when the mould segments are assembled and the metal flows into the mould cavities through narrow slits 10 in one edge of each mould. After casting and removal of the mould the narrow flashing formed in the slits can be easily broken to remove the cast articles from the metal formed in the central runner passage.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: May 14, 1985
    Assignee: Rolls-Royce Limited
    Inventors: David Mills, Alan D. Kington, Rodney J. Close
  • Patent number: 4513942
    Abstract: In an apparatus for encapsulating objects in molded plastic packages, an improved removable cavity plate assembly comprises upper and lower cavity plates which fit together in an interlocking manner to define molding cavities having integral surfaces formed within a single cavity plate on all sides of the cavity but one. The fourth side of each cavity is defined by a surface formed by the interlocking juncture between the two cavity plates. Plastic packages molded in the cavities thus are formed without a seam or parting line along the sides formed on the integral molding surfaces, the seam or parting line being formed only on the surface defined by the juncture of the two cavity plates.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: April 30, 1985
    Assignee: Bourns, Inc.
    Inventor: Edwin A. Creasman
  • Patent number: 4512544
    Abstract: A bottom pour ingot mould system and more particularly a sprue plate having a plurality of horizontally extending runners therein and a plurality of upstanding guide pads spaced from the horizontal runners to effect positioning of each mould relative to an outlet in a horizontal runner. Molten steel is poured down a vertical runner, after which it moves horizontally then upwardly into the ingot mould.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: April 23, 1985
    Assignee: Microdot Inc.
    Inventors: Paul D. Eckenrode, Richard P. Eisenbrei, James E. Nixon
  • Patent number: 4449690
    Abstract: An apparatus and a method of use thereof for cast encapsulation of items, particularly electronic components. The apparatus consists of a plurality of identically shaped split matrix elements. Each matrix element has a first surface for receiving and securing the item to be encapsulated. A second surface of another identically shaped matrix element, located on a side thereof opposite to its first surface, is then mated with the first surface securing the item. Thus mated, the first and second surfaces establish a molding cavity for enclosing the item and an orifice providing access thereto. This process of securing an item to a first surface and enclosing it with a second surface is repeated thereby assembling a stack of matrix elements. This stack is then rigidly secured and the molding cavities are filled with particulate filler material through upright orifices. Excess filler is removed by quickly turning the stack over and then righting it again.
    Type: Grant
    Filed: July 28, 1982
    Date of Patent: May 22, 1984
    Assignee: Jon M. Schroeder
    Inventor: Jon M. Schroeder
  • Patent number: 4440377
    Abstract: A book mold for producing a plurality of flat footwear soles simultaneously includes opposed top and bottom molds, each of which includes a pair of mold cavities; and an intermediate mold defined by a plate connected to one end of the bottom mold by a piano hinge. The intermediate mold is closed on the bottom mold, and the top mold is clamped on the intermediate mold using a clamping cylinder. Thermoplastic material is injected into the mold cavities through a port defined by a square slot in the intermediate mold, resulting in a large sprue in the intermediate mold. The soles remained attached to the intermediate mold, and when the mold is opened all soles are removed rapidly.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: April 3, 1984
    Inventor: Ladislav Hujik
  • Patent number: 4359202
    Abstract: Nozzle apparatus and method for controlling molten metal flow in a bottom pour casting system whereby a fluid passage is defined wherein the flow is controlled to minimize splashing of the molten metal in the molds and the flow distribution is better equalized among a plurality of molds which are being simultaneously charged.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: November 16, 1982
    Assignee: Jones & Laughlin Steel Corporation
    Inventors: Charles C. Gerding, Joseph M. Stoll, Harold L. Majors
  • Patent number: 4356994
    Abstract: The invention relates to the units of a pouring system for uphill teeming. Conventionally, such units are formed by a pouring trumpet having a two-part heavy duty iron casing, and by runners set in channels in a heavy cast iron base plate, requiring skillful assembly on site. When unskilled personnel are utilized there is frequently incorrect assembly and positioning, leading to jointing and cracking, faults which in turn leads to molten metal penetration during pouring with consequent damage to the cast iron casing of the trumpet and the case iron base plate with the inherent danger of a complete break-out. The objective of the invention is to alleviate the problems outlined above, that objective being met by providing the units of a pouring system for uphill teeming each comprising an outer casing, an inner refractory liner and a refractory insulating material between the outer casing and the inner liner, each unit being pre-assembled as a complete unit for delivery to a casting bay.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: November 2, 1982
    Assignee: Dyson Refractories Limited
    Inventor: James M. Thornton
  • Patent number: 4334664
    Abstract: A method of recovering tin from tin dross consisting of positioning a barrel having an apertured bottom and charged with a supply of the tin dross upon a partitioned collecting tin mold, with the components thus arranged being placed into a furnace for subjecting the components and tin dross charge to a temperature approximating 700.degree. F. for a time duration approximating 5-6 hours and allowing the developed molten free tin to flow downwardly of the barrel and through the apertures thereof and into and between the partitions of the collecting tin mold, and withdrawing the collecting tin mold for cooling before removing the cast tin bars therefrom. The apparatus aspect relates to the design of the barrel and collecting tin mold.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: June 15, 1982
    Inventor: Robert M. Gancarz, Sr.
  • Patent number: 4332537
    Abstract: A cavity plate means is removably positioned between upper and lower mold plates with the upper surface of the cavity plate means flush against the upper mold plate. The cavity plate means has openings from top to bottom thereof and holds objects spaced from the upper mold plate with the portions of the objects which are to be encapsulated being in registration with the cavity plate openings. Fluid plastic is forced laterally through feed runners formed in the surface of the upper mold plate and downwardly through gates into the cavity plate openings. After the plastic has hardened, the plastic ejected from the feed runners of the upper mold plate and the cavity plate means is removed. Preferably the objects are pre-mounted on the cavity plate means, and the lower cavity plate surface is positioned flush against the lower mold plate which is uninterruptedly flat.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: June 1, 1982
    Inventor: Dusan Slepcevic
  • Patent number: 4327890
    Abstract: A composite mold construction for casting on the connector straps, posts, and terminals for lead acid electrical storage batteries wherein the mold cavity areas are alternately heated by direct flame on one face and then chilled by a coolant on their opposite face to freeze metal in the cavities without freezing molten metal flowing in adjacent flow channels. A plurality of mold cavity partition inserts are arranged to be interchangeable in the main mold assembly to enable a single mold assembly to be utilized for several arrangements of battery cells, strappings, and terminals. Thermal distortion of the mating parts is minimized to maintain the junctions between the insert and frame free of leaks by surface geometries which provide broad surfaces of contact drawn together by bolts securing the relatively thin inserts by tapped bores in the more massive primary portions of the mold assembly.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: May 4, 1982
    Assignee: Mac Engineering
    Inventor: John D. Cattano
  • Patent number: 4239724
    Abstract: The method of making valued plastic articles, such as game tiles and the like, comprising providing in one of a pair of separable mold members ejector pins for forcibly ejecting the tiles and severing them from residual plastic and providing in the other mold member protuberances which form indentations in one face of each tile which are essentially identical to indentations formed in the other face by the ejector pins. Indicia designating the value of a tile is subsequently applied to either face, the necessity of sorting of the tiles prior to application of indicia being eliminated by the invention.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: December 16, 1980
    Assignee: U.S. Product Development Co.
    Inventor: Robert Adell
  • Patent number: 4239471
    Abstract: This relates to an injection mold assembly wherein there is a plurality of cavities which are spaced from a center of the mold assembly and wherein each cavity has therein a core so that a thin wall article, such as a preform for a blow molded bottle, may be accurately formed by injection molding. Previously experienced differential in temperature and thus expansion differentials causing core-cavity misalignment are overcome in accordance with this invention by supplying the core retainer plate, which is normally cooler than the cavity retainer plate, with a heater for elevating the temperature thereof as required.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: December 16, 1980
    Assignee: The Continental Group, Inc.
    Inventor: Nareshwar Swaroop
  • Patent number: 4219323
    Abstract: A link for coupling a plurality of injection mold manifolds has expansion and compression compensating slots for absorbing movement of the manifolds as they are heated and cooled.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: August 26, 1980
    Assignee: The Broadway Companies, Inc.
    Inventors: Stephen A. Bright, William R. Gaiser, John W. Gaiser
  • Patent number: 4199315
    Abstract: An apparatus is provided for injection molding a pneumatic tire having corresponding symmetrical parts such as the sidewalls of the tire which are geometrically symmetrical and have substantially the same physical characteristics. The apparatus involves means for providing a feed stream of suitable plastic or elastomeric compound such as rubber, separating the feed stream into intermediate streams and remixing the intermediate stream before injection into the mold. The compound is injected into the mold cavities at uniformly spaced points along at least one of the annular zones of the cavity. The feed stream is preferably separated into two streams, one of which comes primarily from the outer portion of the stream and the other predominantly from near the center of the stream and then these streams are intermixed to provide a stream which is substantially uniform in composition throughout.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: April 22, 1980
    Assignee: Industrie Pirelli S.p.A.
    Inventors: Achille Gallizia, Paolo Bandel
  • Patent number: 4184836
    Abstract: A central chamber of a mold body, communicating through a heated nozzle with a supply channel, has a plurality of peripherally spaced injection orifices opening into respective cavities for the molding of tubular articles such as shells of disposable syringes, each cavity being defined by a generally cylindrical recess in the mold body paralleling the nozzle axis and a core received with all-around clearance in that recess. Each cavity has two elongate sections of larger and smaller diameter interconnected by a wider annular gap at the level of the injection orifices; the axial width of the annular gap progressively diminishes with increasing distance from the corresponding orifice.
    Type: Grant
    Filed: January 27, 1978
    Date of Patent: January 22, 1980
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Herbert Rees
  • Patent number: 4181285
    Abstract: Freezing mould bags are disclosed, having a plurality of mould compartments which communicate with each other and, in turn, with a liquid inlet. The liquid inlet and the mould compartments are defined by a pattern of joints or sealings between two opposed bag sheets constituting the bag walls. The mould bags are well-suited for preparing ice pieces of the ice "cube"-type, but may also be used for other purposes.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: January 1, 1980
    Inventor: Erling Vangedal-Nielsen
  • Patent number: 4140452
    Abstract: In molding the tread portion of a pneumatic tire to have a breaker structure incorporated therein the breaker is built in an annular mold cavity to have a radially outermost 90.degree. ply consisting of parallel cords extending axially of the cavity, and uncured rubber is introduced into the cavity through an annular gate surrounding the cavity so as to spread axially of the cavity. As the introduced uncured rubber does not move circumferentially of the cavity it has no tendency to displace the breaker cords.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: February 20, 1979
    Assignee: Dunlop Limited
    Inventor: Anthony G. Goodfellow
  • Patent number: RE31890
    Abstract: Freezing mould bags are disclosed, having a plurality of mould compartments, which communicate with each other and, in turn, with a liquid inlet. The liquid inlet and the mould compartments are defined by a pattern of joints or sealings between two opposed bag sheets constituting the bag walls. The mould bags are well-suited for preparing ice pieces of the ice "cube"-type, but may also be used for other purposes.The questions raised in reexamination request No. 90/000,090, filed October 15, 1981, has been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.570(e).
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: May 21, 1985
    Inventor: Erling Vangedal-Nielsen