Patents Examined by Robert L. Spicer, Jr.
  • Patent number: 4131409
    Abstract: An apparatus for continuously vulcanizing elastomeric hose employing a tubular, helically extending vulcanizing chamber with an entrance for unvulcanized hose at one end and an exit for vulcanized hose at the other end terminating in a fluid bath which collects the vulcanizing fluid for re-circulation. Means are provided to circulate a vulcanizing fluid at elevated temperatures and pressures through the chamber to transport the hose therethrough while providing the heat and pressure required for satisfactory vulcanization. The fluid bath provides means for effectively preventing escape of pressurized fluid contained in the system.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: December 26, 1978
    Assignee: The B. F. Goodrich Company
    Inventor: William R. Babbin
  • Patent number: 4131154
    Abstract: A roller apron or strand guide assembly for a continuous casting installation for casting metals, especially steel, in particular equipped with driving- and/or straightening rollers, wherein in the direction of travel of the strand immediately following pairs of rollers are mutually independently displaceable along comb-like arranged guides dispositioned to both sides of the machine frame transversely with respect to the direction of travel of the cast strand. The bearings of both rollers of a roller pair are each mounted upon a transverse support, which transverse support cooperates with the comb-like arranged guides and can be moved by pressure cylinder means. Further, at least the transverse support can be adjusted by non-driven rollers against stops provided at the machine frame.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: December 26, 1978
    Assignee: Concast AG
    Inventors: Raymond Vial, Herbert Fastert, Heinrich Marti
  • Patent number: 4130158
    Abstract: A centrifugal casting machine of the broken arm type has a rotatable casting arm on which a swing arm, which supports a crucible and a casting ring, is pivotably mounted. The crucible is tiltable so that upon initial rotation of the casting arm the crucible tilts to a pouring position to pour molten metal into the casting ring. A cam follower on the swing arm engages a cam on the base of the machine to hold the swing arm, during a start up period of rotation, in an orientation in which the flow path of molten metal lies in a plane approximately tangential to a circle concentric with the axis of rotation of the casting arm. This orientation and the tilting action eliminates splashing or other metal losses.After the initial period of rotation during which the metal enters the casting ring, the cam releases the swing arm for alignment with the casting arm so that the action of centrifugal force in filling the mold cavity is maximized.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: December 19, 1978
    Assignee: The J. M. Ney Company
    Inventors: Frank M. Kulig, Frank H. Nealon
  • Patent number: 4130385
    Abstract: The invention relates to the processing of photographic material such as photographic film which has a tendency to curl in roller type photographic processing equipment, without attaching a separate leader portion to the film. After removing the curl from an end portion of the film, it is processed in a roller type photographic processing equipment without curling around the transporting rollers.The invention also provides a method of making this leaderless processing possible. This is performed by deforming a portion of the photographic material so as to prevent the tendency to curl to allow positive self-leading through the roller type processing equipment. Another embodiment of the invention provides a one-piece, partially curled, photographic material wherein curl has been removed from a portion, thus making the film suitable for photographic processing equipment.Another embodiment provides an apparatus for preventing curl in a portion of photographic material.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: December 19, 1978
    Inventors: Henry F. Hope, Stephen F. Hope
  • Patent number: 4130387
    Abstract: There is disclosed a novel apparatus for thermoforming a plastic article wherein the male mold assembly and the female mold assembly are disposed on support members which are maintained in fixed relationship to each other during thermoforming operation. The sheet of thermoforming material after initial heating is trapped by clamping devices associated with the assemblies with the male die and female die molds associated with the male and female mold assemblies, respectively, being operated by fluid cylinder assemblies motivated by pressurized fluid.
    Type: Grant
    Filed: August 25, 1976
    Date of Patent: December 19, 1978
    Assignee: National Can Corporation
    Inventor: Donald G. Sauer
  • Patent number: 4128379
    Abstract: Apparatus for processing extruded thermoplastic material by advancing a hollow extrudate from the die member of an extruder through auxiliary equipment followed by stress relieving the extrudate through a mesh guide means, wherein the initial portion is heated while the subsequent portion is cooled by passing it through the mesh guide which may be contained in a temperature controlled water bath.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: December 5, 1978
    Assignee: The B. F. Goodrich Company
    Inventors: Joachim E. Hartitz, Sam D. Nehemy, Erwin R. Wahl
  • Patent number: 4127374
    Abstract: Apparatus for manufacturing the cups of a brassiere from a fabric of synthetic material, said apparatus consisting of a frame with members for stretching and/or clamping and/or transporting the fabric between a mould which may be moved up and down, and a supporting rim cooperating with said mould and mounted therebelow, while further means are present to separate the cups, formed by the mould, from the remaining fabric.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: November 28, 1978
    Inventor: Thomas C. M. Ammeraal
  • Patent number: 4127373
    Abstract: Extruder and twin roller calendering plant for producing films or sheets of synthetic plastics or rubber material comprising a pair of calendering rollers mounted in a calender frame and an extruder nozzle head directed into the gap between the pair of calendering rollers, the calender frame being pivotally mounted such that it can be pivoted away from the extruder nozzle head to allow ready access to the extruder nozzle head. The calender frame may be pivotally mounted on the nozzle head and a counter balance weight and/or the drive motor for rollers can be mounted on an opposite side of the pivot to the rollers thereby to counter balance the weight of the rollers.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: November 28, 1978
    Assignee: Hermann Berstorff Maschinenbau GmbH
    Inventors: Dietmar Anders, Wilhelm Brand, Manfred Dienst
  • Patent number: 4124342
    Abstract: An apparatus for adjusting the gap between lips of a die for extruding a plastic sheet material. A pair of flat plates spaced from each other have a plurality of bolts for controlling the gap. The operational adjustment of each bolt is generated as an electric signal, and this electric signal is added with reference to all the bolts to distribute the gaps between the die lips. Each adjustment is changed so that the distribution of the gap between the die lips acquires a predetermined form to thereby determine the necessary amount of adjustment of each bolt.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: November 7, 1978
    Assignee: Toray Industries, Inc.
    Inventors: Takeaki Akatsuka, Katsuichi Kitagawa, Hiroyoshi Amo, Osamu Mita
  • Patent number: 4124057
    Abstract: The drag pattern for a standard AAR coupler is modified to increase the thickness of the bottom wall of a coupler casting forwardly and rearwardly of a plane containing the horn line. The increased thickness is achieved by forming a substantially planar bottom wall surface for a distance of at least two inches at either side of a plane containing the horn line. Head and shank pattern parts are interchangeable and releasably secured onto a pattern plate for molding foundry sand in the drag portion of a foundry mold to produce E, E/F and F-types of coupler castings.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: November 7, 1978
    Assignee: McConway & Torley Corporation
    Inventor: Frank W. Oshinsky
  • Patent number: 4124350
    Abstract: A machine for transversely stretching tubular materials comprises a hollow diverging mandrel and an endless sleeve of a flexible knitted fabric which toroidally embraces the mandrel. In use tubular material to be stretched is driven over the mandrel surface along with the flexible sleeve by friction drive means in the form of endless belts.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: November 7, 1978
    Assignee: F.B. Mercer Limited
    Inventor: Frank B. Mercer
  • Patent number: 4122889
    Abstract: An improved cooling method and apparatus for a continuous casting process of the type wherein the mold is a rotatable casting wheel having a peripheral groove with a portion enclosed by an endless band. The improved cooling of the hot cast metal bar is accomplished by injecting a cooling fluid, under pressure, into the shrinkage gap between the hot continuously cast bar and the band portion of the mold after the bar is partially solidified but before it is removed from the wheel portion of the mold.
    Type: Grant
    Filed: April 1, 1977
    Date of Patent: October 31, 1978
    Assignee: Southwire Company
    Inventor: Roy Richards
  • Patent number: 4123215
    Abstract: A forming mold of double wall structure is provided which while having a reduced wall thickness, undergoes little or no deformation upon forming. A vacuum forming method employing the novel mold is also disclosed.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: October 31, 1978
    Assignee: Kodama Kagaku Kohyo K. K.
    Inventor: Tadahide Madenokoji
  • Patent number: 4123209
    Abstract: A briquetting plant for hot briquetting particulate matter, such as mill waste containing a material that softens when heated, such as iron oxide, which includes a low temperature tumbler type heat exchanger, an intermediate temperature tumbler type heat exchanger, a fluid bed furnace and a compactor, with the feed material being fed therethrough in succession. The briquettes produced by the compactor are first fed from the outlet of the compactor into the intermediate temperature heat exchanger, for liberation of heat therein, separated from the feed material by a screen at the outlet of the intermediate temperature heat exchanger and from such screen transported into the low temperature heat exchanger for further imparting of heat to the feed material. A second screen is provided at the outlet of the low temperature heat exchanger for separating and discharging the briquettes in relatively cooled form.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: October 31, 1978
    Inventor: James E. Moore
  • Patent number: 4123212
    Abstract: A process and an apparatus for substantially uniformly distributing glass fibers onto a forming bed. The apparatus is mounted above the bed for movement relative thereto along the length of the bed and is receptive of glass fibers for chopping same into desired lengths. A hood structure is downstream of the chopping and comprises three chambers. A first chamber defining a receiving zone in the process receives the chopped glass fibers which are dropped into the hood and a second chamber defining a dispersing zone is in communication with the first chamber and downstream thereof and disperses the glass fibers received from the first chamber to effect a random uniform matrix thereof along the width of the bed. The dispersion is carried out by a turbulence that is created within the chamber. The third chamber defining a distributing zone is disposed downstream of the second chamber and has an adjustable length elongated outlet aperture which extends across a desired width of the bed.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: October 31, 1978
    Assignee: Maso-Therm Corporation
    Inventor: Matthew R. Piazza
  • Patent number: 4123206
    Abstract: Apparatus and method are disclosed for forming encapsulated material. Centrifugal force developed by a rotating nozzle having a plurality of radial orifices is used for extruding material to be encapsulated. The nozzle is mounted for rotation about a generally vertical axis and is provided with a circumferential outside surface near its bottom inclined upwardly away from the axis of the nozzle which, when partially submerged in a liquid during rotation, impels a sheet or spray of the liquid along the circumferential surface and shears off successive leading tips of extruded material to form capsules.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: October 31, 1978
    Assignee: Eastman Kodak Company
    Inventor: Clarence C. Dannelly
  • Patent number: 4123211
    Abstract: The disclosure is of apparatus for making a bonded felt web, wherein fibre flocks are carded and the separated fibres are mixed with powdered bonding agent and floated in air at sub-atmospheric pressure, collected on a perforated conveyor, then levelled and flattened.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: October 31, 1978
    Inventor: Bernard Rudloff
  • Patent number: 4121647
    Abstract: A method of producing a multilayer ingot in an electron-beam installation, with the billet arranged in a base plate above the bottom thereof, and the base plate is reciprocated in a horizontal direction as said billet is being melted and the first layer of said ingot is being shaped. Another metal billet is melted above an intermediate vessel, with the molten metal being poured thereoff onto said first layer of the ingot in the base plate forming thereby a second layer on the first formed layer and additional layers of a multilayer ingot are shaped in a similar manner. The reciprocation speed of the base plate is inversely proportional to the cooling rate of the ingot metal in a longitudinal direction. The method of the invention ensures producing ingots with a smooth surface which does not require and preprocessing prior to rolling.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: October 24, 1978
    Inventors: Boris Evgenievich Paton, Boris Alexeevich Movchan, Jury Anatolievich Kurapov, Rostislav Spiridonovich Misjura, Igor Stepanovich Pryanishnikov, Vladimir Nikiforovich Zhuchin, Valentin Vasilievich Topilin, Igor Vasilievich Perepelitsa
  • Patent number: 4121896
    Abstract: There is provided a mold comprising a male and a female mold member fabricated from thermoplastic polymeric materials which, in very thin sections are flexible under polymerization conditions, but, under said conditions are sufficiently inflexible in thick sections to retain their shape and surface characteristics. Said mold is provided, on either the male or the female member with a thin rim which, during the polymerization process, flexes and permits the old members to approach each other and compensate for the shrinkage that occurs during polymerization. Said thin rim further forms the edge of the finished lens.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: October 24, 1978
    Inventor: Thomas H. Shepherd
  • Patent number: 4121651
    Abstract: A casting device comprising a receptacle having an exit orifice at its lower end, a tubular stem carrying a valve for sealing the orifice, a rod in the stem and a valve member carried by the rod for opening and closing the bottom end of an annular space formed between the rod and the stem.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: October 24, 1978
    Inventor: Dino Marco Zeppellini