Initial Forming Of Hollow Product Or Preform In Mold Cavity Patents (Class 65/68)
  • Patent number: 10406694
    Abstract: Various examples are directed to a container gripper assembly comprising a first jaw member and a second jaw member. The first jaw member may comprise a first plurality of pivotable inserts and the second jaw member may comprise a second plurality of pivotable inserts. The first jaw member may be movable towards the second jaw member to grip a container between the first plurality of pivotable inserts and the second plurality of pivotable inserts.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 10, 2019
    Assignee: AGR INTERNATIONAL, INC.
    Inventors: William Harkleroad, William E. Schmidt, George Fleeger, Jeremy Fleeger, Paul Di Zinno
  • Patent number: 9128343
    Abstract: A method of forming an optical element which includes an electrochromic apodized aperture having variable light transmittance through a clear aperture area in response to an applied electrical current is disclosed. The apodized aperture includes a body including an area defining the clear aperture area wherein a fluid containment area substantially overlapping the clear aperture area, and includes at least one fill passage extending from the fluid containment area to at least one fill port outside of the clear aperture area; an electrochromic fluid within the fluid containment area substantially overlapping the clear aperture area and having variable light transmittance in response to an applied electrical current; a cover attached with the electrochromic fluid between the cover and body; electrical contacts electrically coupled to the electrochromic fluid for supplying electrical current thereto; and at least one passage seal in each said fill passage positioned outside of the clear aperture area.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: September 8, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Forrest R. Blackburn, Jonathan Bork, John A. Charny, Stefan C. Dehaseth, Peter C. Foller, Andrew J. Lamb, Kevin W. Seybert, Michael A. Steimle, Robert H. Tang, Robert W. Walters
  • Patent number: 9120692
    Abstract: The present invention relates to a system for aligning and positioning a male mechanism-pneumatic or servo-electric-to be used at the blank station side of a section of a hollow glass forming machine. The system comprises a mechanism, comprising at least one plunger or a driving unit driven by a servomotor, a guide flange composed of an internal flange for retaining the mechanism in position, and an external flange. The system further comprises a base plate for supporting the mechanism. The plate is mounted on at least one guide bar, rigidly fixed to the resting face of the external flange and intended to allow the base plate to slide along a sliding direction substantially orthogonal to the plane wherein the external flange lies. The base plate rests on a height adjustment group, suspended to said upper plane and intended to move the plate along the guide.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 1, 2015
    Assignee: BOTTERO S.P.A.
    Inventors: Zdenko Kuz, Maurizio Barolo
  • Patent number: 8938991
    Abstract: A method of making a glass container comprising providing a mold defining an article having a base at a bottom of the mold cavity where the mold cavity comprises an undercut portion that defines a recess in the mold cavity; introducing molten glass to the mold; cooling the glass to cause the glass to shrink a sufficient amount that the protuberance recedes from the recess; and removing the container from the mold in a linear direction.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Rubbermaid Incorporated
    Inventors: Vignesh Danabalan, William Pierson Hart, Michael A. Zarkis, James Dondero
  • Patent number: 8776548
    Abstract: Systems, methods, apparatus and products relate to drawing and blowing of ultra thin glass substrates, such as flexible display glass sheets, for example, organic light emitting diode (OLED) displays, liquid crystal displays (LCDs), and/or other flexible substrate applications, such as lighting, and/or other technologies, such as electro-wetting (EW), electro-phoretic display applications, etc. A localized heat source centripetally heats a vertical glass pre-form, while a pressurized air source blows the heated glass to expansion. An air bearing may centripetally blow air against the expanding pre-form to limit expansion and prevent contact of the pre-form with the localized heat source. Meanwhile, the pre-form is pulled vertically to draw the heated glass. The pre-form may float in a floatation mechanism to compensate for gravity when the pre-form is pulled upward. The blown and drawn pre-form may be cooled, coated with a polymer layer, and cut into a ribbon by in-line devices as it exits the air bearing.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: July 15, 2014
    Assignee: Corning Incorporated
    Inventors: Thierry Luc Alain Dannoux, Claude Jacques Julien Vanotti
  • Patent number: 8715785
    Abstract: The invention relates to: 1) a process for the mass production of hollow glass articles which, when positioned beside one another with the same orientation in one and the same plane, are liable to come into mutual contact along a surface of revolution, characterized in that after they have left the annealing lehr, they are rotated through one turn at least along the axis of said surface of revolution, this surface then being coated, by a process without any solid contact, with an additional layer which reduces the coefficient of friction; 2) a hollow glass article as obtained by this process; and 3) a packaging assembly of such articles.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 6, 2014
    Assignee: Saint-Gobain Emballage
    Inventors: Eric Martin, Jean-Michel Munos, Frederic Mertz
  • Patent number: 8464553
    Abstract: The invention proposes a process for the production of a container for pharmaceutical and medical applications made from glass, preferably from a borosilicate glass, wherein the container is produced by a press-blow process where the container is initially preformed in a pressing step, by making a ram press a dispensed glass drop into a mold that is open at its bottom, and where the parison so produced is given its final form by a subsequent blowing step.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: June 18, 2013
    Assignee: Schott AG
    Inventors: Andreas Langsdorf, Juergen Thuerk, Aurel Kunz, Ulrich Lange, Joachim Kuester, Bernd Loeffelbein, Marcus Meinefeld, Uwe Rothhaar, Axel Ohlinger
  • Publication number: 20130145797
    Abstract: A device for manufacturing a hollow glass item is provided. The device includes a mold having a cavity with a shape substantially corresponding to the outer shape of the glass item and a punch movable between a passive position outside the cavity and an active position inside the cavity, the punch including a hollow body having at least one raised or hollow pattern on at least one outer surface. A method and a punch are also provided.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: POCHET DU COURVAL
    Inventor: POCHET DU COURVAL
  • Publication number: 20130125587
    Abstract: Methods for producing crucibles for holding molten material that contain a reduced amount of gas pockets are disclosed. The methods may involve use of molten silica that may be outgassed prior to or during formation of the crucible. Crucibles produced from such methods and ingots and wafers that are produced from crucibles with a reduced amount of gas pockets are also disclosed.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: MEMC ELECTRONIC MATERIALS, INC.
    Inventors: Steven L. Kimbel, Harold W. Korb, Richard J. Phillips, Shailendra B. Rathod
  • Patent number: 8327663
    Abstract: A substrate protective film composed of chromium metal is formed on a molding surface of a mold base material composed of cemented carbide. The substrate protective film is oxidized by heat treatment or ion implantation, so that a surface protective film composed of chromium oxide is formed. A pair of molds having such a constitution are prepared. Softened glass is pressed between the surface protective films of the paired molds, so that optical glass elements are molded.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: December 11, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Naoyuki Fukumoto, Shunichi Hayamizu
  • Publication number: 20120304698
    Abstract: The manufacturing device comprises at least one mold and a punch displaceable between a passive position outside said at least one mold and an active position inside said at least one mold. The punch includes at least one marking portion provided with at least one raised and/or recessed pattern and radially displaceable by actuation means into the active position of the punch, between a retracted position and a protruding position applied against the internal face of the side wall for imprinting on this internal face said at least one raised and/or recessed pattern.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 6, 2012
    Applicant: POCHET DU CORVAL
    Inventors: Pascal FROISSART, Sebastien BALITEAU
  • Patent number: 8181484
    Abstract: In a process for a thin-plate form glass molded body, an upper mold part having a pressing surface is used together with a lower mold part having a setting surface arranged to be opposed to the pressing surface. A melted glass lump is pressed between the pressing surface and setting surface. The pressing is performed to set the temperature (° C.) of the thin-plate form glass molded body to a temperature of Tg?20 or higher, and lower than Tg, wherein Tg represents the glass transition point (° C.) of the glass, in a period of 0.8 second or less after the end of the pressing.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: May 22, 2012
    Assignee: Ohara Inc.
    Inventor: Moriji Nozaki
  • Patent number: 8158225
    Abstract: The invention proposes a process for the production of a container made from glass, in the form of a hollow body open on both ends for pharmaceutical and medical applications, in particular in the form of a syringe barrel, where a glass drop (14) is dispensed from a melting unit, is placed into a mold (12) that is driven to rotate, and is formed by the effect of the centrifugal force, the mold being driven at a rotational speed of at least 5000 rpm, preferably approximately 50000 rpm.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: April 17, 2012
    Assignee: Schott AG
    Inventors: Andreas Langsdorf, Juergen Thuerk, Aurel Kunz, Ulrich Lange, Joachim Kuester, Bernd Loeffelbein, Marcus Meinefeld, Uwe Rothhaar, Axel Ohlinger
  • Patent number: 8127569
    Abstract: An I.S. machine has a blow station where a parison is blown into a bottle. The parison is blown with a blow head at the “on” position on the blow mold and following the blowing of the parison, the blow head is lifted away from the blow mold. The spacing between the blow head and the mold is defined by a Pressure Profile which is responsive to the sensed pressure within the mold.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 6, 2012
    Assignee: Emhart Glass S.A.
    Inventor: Wolfgang Anheyer
  • Publication number: 20120031146
    Abstract: A method of fabricating a randomly-colorized glass vessel includes gathering an initial gob of molten primary glass. A quantity of secondary-glass particles is introduced into the initial gob in order to form a particle-containing gob. The secondary-glass particles are made from a secondary glass that contrasts in color with the primary glass. The particle-containing gob is then heated sufficiently to melt the secondary-glass particles and create flows of the secondary glass within the primary glass. Once the desired flows have been created, the gob of primary and secondary glass is introduced into a vessel-defining mold. The mold is sealed and a quantity of gas is injected into the mold in order to form the gob of primary and secondary glass into a vessel.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 9, 2012
    Inventor: Michael Arnold Albert Kramer
  • Publication number: 20110011334
    Abstract: There is provided a silica crucible for pulling a silicon single crystal, comprising silica glass and having a two-layer structure of an outer layer and an inner layer, wherein the inner layer, in a sectional side view of the crucible, has a wavy inner surface shape having mountain parts and valley parts at least between a start position and an end position for the pulling of a silicon single crystal in a silicon melt surface, and when a distance from an upper opening end of the crucible to the start position for the pulling of the silicon single crystal is 100, only a crucible portion from the upper opening end to a position within a range of 40 to 100 is crystalline.
    Type: Application
    Filed: March 2, 2009
    Publication date: January 20, 2011
    Applicant: Japan Super Quartz Corporation
    Inventors: Atsushi Shimazu, Tadahiro Sato
  • Publication number: 20110000260
    Abstract: The invention relates to a method for producing an optical glass part, particularly of a motor vehicle headlight lens or a lens-like free form for a motor vehicle headlight, wherein glass is melted, wherein a perform is formed from the glass, and wherein from the perform the motor vehicle headlight lens or the lens-like free form for a motor vehicle headlight is bright molded, particularly on both sides, wherein the glass is melted in a melting unit having a capacity of no more than 80 kg/h, wherein the glass comprised 0.2 to 2% weight Al2O3, 0 to 1% by weight Li2O, 0.3 to 1.5% by weight Sb2O3, 0.3 to 2% weight TiO2, and 0 to 1% by weight Er2O3.
    Type: Application
    Filed: November 28, 2008
    Publication date: January 6, 2011
    Applicant: DOCTORS OPTICS GMBH
    Inventors: Jan Heiko Hamkens, Hubert Drexler
  • Publication number: 20100186451
    Abstract: Water-soluble glass as corrosion protector in dishwashing machines A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P2O5, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO3 and up to 25 mole % of ZnO.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: RECKITT BENCKISER N.V.
    Inventor: KARLHEINZ ULRICH GERHARD HAHN
  • Publication number: 20100147213
    Abstract: A silica glass crucible for pulling up a silicon single crystal including an outer layer formed from a natural silica glass layer, and an inner layer formed from a synthetic silica glass layer, wherein the synthetic silica glass layer includes a first synthetic silica glass layer formed in a region within a certain range from the center of a crucible bottom section, and a second synthetic silica glass layer formed in a region which excludes the formation region of the first synthetic silica glass layer, and wherein the first synthetic silica glass layer has a thickness of 0.5 mm or more and 1.5 mm or less and a concentration of an OH group included in the first synthetic silica glass layer being 100 ppm or less.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Applicant: JAPAN SUPER QUARTZ CORPORATION
    Inventors: Kazuhiro HARADA, Masaki MORIKAWA, Satoshi KUDO
  • Publication number: 20100018254
    Abstract: A rough mold of a machine for forming glass items is provided with a multifunctional group, which has a common support head; a handling device for moving the common head along a first handling axis; and a further handling device for rotating the common head about a second handling axis. The common head being fitted with a mold closing member for sealing the top opening of the rough mold, and at least one further operating member selectable from a funnel-shaped member for guiding at least one glass gob into the rough mold, a blowing member for blowing pressurized air into the rough mold, and one or more members for treating the inner surface of the rough mold.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Inventors: Gianclaudio Borsarelli, Mario Balbi, Maurizio Barolo
  • Publication number: 20090107181
    Abstract: A preform producing apparatus, in which the apparatus is downsized and capable of producing preforms at a lower cost, and a molten glass-supporting member used for the preform producing apparatus are provided. A molten glass-supporting member 1 has an openable and closable receiving member 12, of which a receiving surface 13 for receiving molten glass is constructed from a plurality of members 11a and 11b, and a closed state-maintaining member 14 for maintaining the receiving member 12 in a closed state.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventor: Ryousuke Sakai
  • Publication number: 20090084799
    Abstract: A narrow neck glass container includes a container body and a container neck finish. The container neck finish has an external closure attachment diameter of not more than 36 mm, and the container body has at least one internal embossment of predetermined geometry. The at least one internal embossment preferably comprises a plurality of internal embossments in a geometric pattern.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventor: Stefan Mondon
  • Patent number: 7451620
    Abstract: An optical glass having a high refractive index and high dispersion characteristics that is suited to application to precision press molding to precisely mold the shape of final products for objectives not requiring grinding or polishing. An optical glass exhibiting a refractive index in the range of from 1.75 to 2.0, an Abbé number in the range of from 20 to 28.5. Optical parts comprised of this glass; press-molding materials comprised of this glass; methods of manufacturing the same; and methods of manufacturing molded glass products employing these materials.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: November 18, 2008
    Assignee: Hoya Corporation
    Inventors: Xuelu Zou, Hiromasa Tawarayama, Kazutaka Hayashi, Hiroshi Kawazoe
  • Patent number: 7073352
    Abstract: A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold statio
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: July 11, 2006
    Assignee: Vitro Global, S.A.
    Inventors: Victor Tijerina-Ramos, Adrian Sada-Treviño
  • Patent number: 7024887
    Abstract: A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold statio
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: April 11, 2006
    Assignee: Vitro Global, S.A.
    Inventors: Victor Tijerina-Ramos, Adrian Sada-Treviño
  • Patent number: 6993935
    Abstract: Vertically aligned first (30) and second (32) combined blowhead and takeout mechanisms are provided to sequentially blow glass parisons (P) into containers (C) in a mold set (22) and to transfer blown containers to a deadplate (40) of a glass containing forming machine (20). Each of the combined mechanisms is pivotally suspended about an axis A from a carrier arm (36) that is pivotally attached to an end of an oscillating arm (38), an opposed end of which is pivoted about an axis (B). The axis (B) of each combined blowhead and takeout mechanism is periodically raised and lowered to permit the other combined blowhead and takeout mechanism to oscillate therebeneath, to thereby permit overlapping cycles between the blowhead and takeout mechanisms. Each blowhead and takeout mechanism is provided with a chuck or tong assembly (54) to engage or release each container by its finish (F).
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: February 7, 2006
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: D. Wayne Leidy, Frank J. DiFrank
  • Patent number: 6951629
    Abstract: A blow mold (1) for a stretching machine or a glass blowing machine, comprising two mold halves (3, 4) which are pivotably connected by at least one connecting pin (2), and a shutting device and locking device in the form of a closing clamp (7) which can be slid directly onto the mold halves (3, 4) from the side of the connecting pin (2). The mold halves (3, 4) are closed around the connecting pin (2) by the sliding, pressing contact of the closing clamp (7) and in the closed position, are pressed against each other without a gap, resulting in a mechanically simple, space-saving blow mold (1).
    Type: Grant
    Filed: May 28, 2001
    Date of Patent: October 4, 2005
    Inventor: Hermann E. H. Kronseder
  • Publication number: 20030230115
    Abstract: A plunger (10) for intermittently delivery counterblow air to a gob glass at a formable temperature in a blank mold of a I.S. glass container forming machine that is being operated on the blow and blow process. The plunger comprises a fixed annular member (12) with an enlarged recess (12a) at an inlet end and a valve seat (12d) at an upper end. The plunger also has a sliding valve member (14) within an annulus of the annular member (12), and the valve member (14) has a stem portion (14a) and an enlarged valve seat portion (14b) at a free end thereof. The plunger further has a collar (16) threadably and adjustably secured to the stem portion of the sliding valve member, and the collar, which is slidable within the recess of the annular member, has a plurality of air flow passages (16a) extending therethrough. Pressurized air is intermittently delivered to the recess of the annular member (12) through an inlet line (20), which has an on/off valve (22) therein.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 18, 2003
    Inventor: Norman C. Pessoa
  • Patent number: 6626010
    Abstract: A method of floating glass gobs by means of a gas flow. A method of manufacturing glass gobs by floating a molten glass gob and simultaneously cooling it. A method of manufacturing glass spheres by floating a softened glass gob and simultaneously rendering it spherical. These methods employ a device having a depression for floating and holding a glass gob or the like, with a gas flow being supplied along all or part of the inner surface of the depression from the opening side of the depression toward the bottom. A manufacturing method comprising the steps of adjusting a glass gob to a temperature suited to press molding while floating said glass gob by means of a gas flow injected along part or all of the depression-shaped forming surface of a lower mold from the opening side of the lower mold toward the bottom of the lower mold; and a step of press forming the glass gob.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: September 30, 2003
    Assignee: Hoya Corporation
    Inventor: Masahiro Yoshida
  • Publication number: 20030167799
    Abstract: A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold st
    Type: Application
    Filed: March 7, 2002
    Publication date: September 11, 2003
    Inventors: Victor Tijerina-Ramos, Adrian Sada-Trevino
  • Patent number: 6427490
    Abstract: Funnels of picture tubes are typically produced by pressing a molten gob of glass in a mold using a pressing die and by using a ring resting on the mold and resiliently secured to the die, for molding a flat funnel upper edge. At the same time, through corresponding recesses in the mold, bearing faces, so-called pads for connecting the funnel adjustably to the picture screen, are molded onto the outer collar of the funnel.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: August 6, 2002
    Assignee: Schott Glas
    Inventors: Heinz-G. Bordt, Georg Sparschuh
  • Patent number: 6415631
    Abstract: A method and apparatus are described for making an article such as the body of a needleless injector capsule, from a formable material, such as glass, the article having a cavity communicating with the exterior via an orifice. A blank having an open end is mounted on a first forming tool, and the open end is engaged by a second forming tool while an end region of the blank adjacent the open end is in a condition to permit it to be formed. One of the tools has a pin extending therefrom, and when the tools are brought together to form the end region into the desired shape the pin defines the orifice.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: July 9, 2002
    Assignee: Weston Medical Limited
    Inventors: Terence Edward Weston, Christopher John Briggs
  • Patent number: 6301932
    Abstract: The present invention is directed to a method for forming glass articles containing enclosed channels. The method comprises the following steps: a) delivering and depositing a first length of a molten glass ribbon (18) to a surface of a mold (20) having a mold cavity (22) possessing at least one channel-forming groove (22) and a peripheral surface, wherein the first length (18) overlies the mold cavity (22) and the peripheral surface; b) allowing the first length of the molten glass ribbon (18) to substantially conform to the contour of the mold cavity (22) resulting in the formation of at least one channel in the first length of the molten glass ribbon (18); c) delivering and depositing a second length of the molten glass ribbon (26) to the exposed surface of the first length of the molten glass ribbon (18).
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: October 16, 2001
    Assignee: Corning Incorporated
    Inventors: Stephen R. Allen, James G. Anderson, Robert J. Kiphut, Jackson P. Trentelman
  • Patent number: 6216493
    Abstract: A method and apparatus are described for making an article such as the body of a needleless injector capsule, from a formable material, such as glass, the article having a cavity communicating with the exterior via an orifice. A blank (1a) having an open end is mounted on a first forming tool, and the open end is engaged by a second forming tool (22) while an end region of the blank (1a) adjacent the open end is in a condition to permit it to be formed. One of the tools (7a) has a pin (21) extending therefrom, and when the tools are brought together to form the end region into the desired shape of the pin (21) defines the orifice.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: April 17, 2001
    Assignee: Weston Medical Limited
    Inventors: Terence Edward Weston, Christopher John Briggs
  • Patent number: 6205817
    Abstract: A method of manufacturing a hollow cone having an open side and a cone tip. The method utilizing the steps of introducing a viscous material in a first mold portion, introducing a second mold portion and contacting the viscous material therewith, providing a force in an escape space so as to prevent the viscous material from flowing into the escape space, forming the open side of the hollow cone while preventing the viscous material from entering the escape space and causing the viscous material to enter the escape space to form the cone tip.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: March 27, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Wilhelmus N. M. Selten, Martinus P. W. Van Roosmalen, Hermanus N. Tuin
  • Patent number: 6079226
    Abstract: A hollow glass parison is formed by pressing a gob of molten glass in a mold cavity with a plunger which is moved in a linear direction by a leadscrew which is connected to the plunger and is driven by a servomotor. Actuation of the servomotor creates a rotation of the leadscrew which causes the plunger to advance in a linear direction from a first position until the plunger contacts the gob at a second position. The plunger then advances to press the gob in the mold cavity to form the gob into a parison. During movement of the plunger in the linear direction the position of the plunger is continually sensed with a position-sensing resolver which provides position information to a system controller which utilizes the position information to control the position of the plunger prior to contacting the gob in the mold cavity, the depth of plunger penetration into the gob of molten glass during pressing by controlling the pressing pressure, and the weight of the gob of molten glass.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: June 27, 2000
    Assignee: Owens-Brockway Glass Container Inc.
    Inventor: D. Wayne Leidy
  • Patent number: 5994248
    Abstract: The invention relates to lenses such as aspherical lenses and to a process for their manufacture. According to the invention, the lens is composed of a glass matrix including the constituents below in the following weight proportions:______________________________________ SiO.sub.2 65-85% Al.sub.2 O.sub.3 0-10% B.sub.2 O.sub.3 0-20% Li.sub.2 O + Na.sub.2 O + K.sub.2 O 3-20% CaO + MgO + BaO 1-15% FeO + Fe.sub.2 O.sub.3 0-0.1%, ______________________________________wherein the K.sub.2 O content is equal to or less than 1% and the BaO content is equal to or less than 1%.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 30, 1999
    Assignee: Saint-Gobain Vitrage
    Inventors: Jose Francisco Gandarillas-Lastra, Benoit Trouille
  • Patent number: 5968218
    Abstract: An invert cylinder mechanism for a glass container forming machine of the I.S. type, the invert cylinder mechanism having a piston that is moveable along a rectilinear path between inner and outer positions within an annular housing to cause a cylinder rod attached to the piston to extend from said annular housing and to then retract back into said annular housing. A shock absorber is positioned within a recess of the annular housing with its longitudinal central axis spaced from and extending parallel to the longitudinal central axis of the rod. The shock absorber is engaged by the piston as the piston reaches its outer position to absorb inertial loads as the piston decelerates to a stop at its outer position. The recess has an opening out of alignment with the longitudinal central axis of the installed shock absorber, and the shock absorber is removable through the opening along its longitudinal central axis after first pivoting the shock absorber with respect to the longitudinal central axis of the rod.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 19, 1999
    Assignee: Owens-Brockway Glass Container Inc.
    Inventor: Jack I. Perry
  • Patent number: 5958099
    Abstract: A blank mold sooting process in which a lubricating or detaching layer is formed on the internal walls of the blank mold, by igniting an acetylene flow with piezoelectric electrodes, a voltaic arc generator, or an electrical resistance. The process is performed utilizing, for example, a blow mold and an invert, and the invert can be utilized to transfer a collar from the blank mold to the blow mold.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: September 28, 1999
    Assignee: Avir Finanziaria S.p.A.
    Inventor: Ambrogio Morettin
  • Patent number: 5938806
    Abstract: A spray device which is provided with a nozzle for spraying a lubricant is arranged in proximity to a bottom mold and/or a plunger, and the nozzle is operated and controlled by a control device to spray the lubricant on a mold surface of the bottom mold and/or the plunger.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: August 17, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventors: Shinya Mine, Yutaka Segawa, Masao Tamura
  • Patent number: 5900035
    Abstract: A hollow parison (P) of a glass container is formed from a gob of molten glass, the parison having a body portion (B) with a closed end and an open end. The body portion of the parison is formed in an annular blank mold (14). The parison also has a finish portion (F) at the open end of the body portion of the parison, the finish portion being formed by an annular neck mold (16) which is positioned against an end of the blank mold during the forming of the parison. An annular cage (26) surrounds a substantial axially extending portion of the blank mold. The annular cage receives cooling air and directs cooling air against cooling fins (24) on the exterior of the blank mold to cool the body portion of the parison while it is in the blank mold. Spent cooling fluid from the annular cage flows therefrom through an opening aligned with the open end of the body portion of the parison.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: May 4, 1999
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Russell D. Hoenig, John E. Rummel, Jr.
  • Patent number: 5876475
    Abstract: A method and apparatus for forming a glass container in a blow-and-blow process. The apparatus includes an air flow controller having a housing defining a chamber, a piston disposed for reciprocal movement from a first position to a second position within the housing for moving a slide block therein, first and second passages extending through the slide block, a first port in the housing in flow communication with the second passage and a transducer when the piston is in its second position to create a negative air flow through the second passage and first port when a pressurized air flow is induced through the transducer to draw a vacuum beneath a gob in a blank mold to form a finish in the gob and sweep debris away from the gob and blank mold, and a second port in communication with the first passage and first port when the piston is in its first position to provide pressurized air to the gob.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 2, 1999
    Assignee: Quantum Engineered Products, Inc.
    Inventor: Joseph W. Kozora
  • Patent number: 5827346
    Abstract: A method of making core holes in cast cladding glass for fabricating optical fiber preforms to make single and multimode optical fibers. Liquid cladding glass is pored into a casting mold having a metallic wire that is translated through the liquid glass as it cools so that the wire essentially carves out a smooth cylindrical core hole along the cylindrical axis of the cooled cladding glass. The method substantially reduces surface contamination at the interface of the core hole and the cladding glass because any liquid glass that comes in contacts with the metallic wire is removed during the process, leaving behind a pristine glass surface.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: October 27, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Nonna Kopylov, Ahmet R. Kortan
  • Patent number: 5823011
    Abstract: In the press-molding method for producing molded glass bodies, the molding plug remains in contact with the molded glass body in the mold after the molding process until the regions close to the surface have cooled to a temperature at which the molded body at least temporarily possesses sufficient inherent stability to be removed from the mold. To prevent re-heating of the regions near the surface from causing undesirable deformation of the molded glass body, the body is transferred to a cooling station after being removed from the press mold. With this method, the waiting period during which the molded glass body is in the mold is minimized, so this mold is available for another molding process after a very short time. The capability of a glass-molding apparatus operated according to the method of the invention is thus increased.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: October 20, 1998
    Assignee: Poting GmbH & Co. KG
    Inventor: Klaus Poting
  • Patent number: 5817161
    Abstract: In forming a piano-convex lens from a column-like lens blank by heating the blank to a temperature higher than the transition temperature thereof and by pressurizing an upper die with a closed space formed between the blank and the upper die, there are alternately repeated operations of pressurizing the upper die and stopping the application of pressure thereto. Through the control of the amount of displacement of the upper die, the maximum pressure of gas in the closed space at each pressurizing step is so controlled: as to be low according to the surface viscosity of the blank to the extent that no local concave deformation in the surface of the blank is produced; and as to be high to the extent that gas caught in the closed space is discharged at each step of stopping the application of pressure.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: October 6, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuaki Takagi, Kenji Yamaguchi
  • Patent number: 5779752
    Abstract: The present invention pertains to an apparatus for forming glass. The apparatus comprises a mold for holding molten glass. Additionally, the apparatus comprises a mechanism for applying pressure to the molten glass in the mold. The apparatus comprises a controller for controlling the applying mechanism such that pressure is applied to the glass at predetermined times. The present invention pertains to a method for forming glass. The method comprises the steps of placing molten glass in a mold. Preferably, the placing step includes the step of placing the molten glass at a temperature greater than 800.degree. C. into the mold. Next there is the step of applying pressure greater than ambient pressure to the molten glass in the mold. Before the applying step, there is preferably the step of cooling the molten glass to a predetermined temperature. The applying step preferably includes the step of applying the pressure until the pressure reaches a peak when the molten glass is cooled to a quench temperature T.sub.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: July 14, 1998
    Inventors: Leonid M. Landa, Ksenia A. Landa
  • Patent number: 5766293
    Abstract: Optical glass preforms for use in subsequent molding processes for the production of lenses are produced which have a controlled peripheral edge wall geometry. Gobs of molten glass of predetermined weight and volume are dripped onto a lower mold surface. A pressing head including a sleeve and a plunger are lowered such that the sleeve surrounds the gob. The plunger is then depressed such that the upper mold surface of the plunger resides in a predetermined elevation above the lower mold surface thereby forcing the gob to conform to the cavity created within the sleeve and between the upper and lower mold surfaces. In such manner the sleeve serves as a form or exterior boundary for the resultant preform such that a preform is produced which requires no grinding or polishing prior to its use in subsequent molding operations.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: June 16, 1998
    Assignee: Eastman Kodak Company
    Inventor: Daniel R. Gearing
  • Patent number: 5766292
    Abstract: A method and apparatus for forming a hollow glass article comprises delivering a gob of glass to a blank mold, providing a first neck ring to a position adjacent the blank mold, forming the gob in the blank mold into a parison, moving the first neck ring to transfer the parison to a blow mold, blowing the parison in the blow mold to a hollow article, releasing the engagement of the first ring with the hollow article, moving the first neck ring away from the blow mold, removing the hollow article from the blow mold, returning the first neck ring to a position adjacent the blank mold to repeat the cycle, providing a second neck ring adjacent the blank mold while the first ring is moving toward the blow mold, delivering a second gob of glass to the blank mold while the second ring is in position adjacent the blank mold, forming the second gob into a second parison, moving the second parison to a position adjacent the blow mold while the first neck ring is being returned to a position adjacent said blank mold; an
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: June 16, 1998
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Donald E. Schupbach, D. Wayne Leidy
  • Patent number: 5685888
    Abstract: A machine for the production of glassware articles by pressing and blowing molten glass gobs fed from a glass gob feeder, comprises at least a blank mold and a corresponding pressing plunger, mounted at a stationary parison forming station, and four forming stations mounted around a 90.degree. indexed rotary carrier, each comprising a blow head, a neck ring and a blow mold, so as to rotate to a first forming position coinciding with the parison forming station, and to second, third and fourth forming positions spaced 90.degree. from each other, for reheating, blowing, and take out operations.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: November 11, 1997
    Assignee: Vitro Crisa Cristaleria, S.A. de C.V.
    Inventor: Victor Tijerina-Ramos
  • Patent number: 5676721
    Abstract: A method and apparatus for pressing glass articles. A single mold may be utilized for each article being pressed. The plunger has a ring-like member movably attached thereto. After pressing, when the plunger is retracted from the plunger, the plunger retains the glass article thereon. The ring-like member is then lowered relative to the plunger, thereby removing the pressed article therefrom.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: October 14, 1997
    Assignee: Corning Incorporated
    Inventors: Allan M. Fredholm, Gilbert D. Pujol