Facilitating Removal Of Article From Form Patents (Class 264/304)
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Patent number: 11690985Abstract: A method of inducing retrograde blood flow may include extending a sheath through opposite walls of one of an artery and a vein of a subject and through a wall of the other of the artery and the vein such that a distal end of the sheath may be positioned within one of the artery and the vein. The method may include inducing retrograde blood flow in the artery and delivering the induced retrograde blood flow into the vein of the subject via the sheath.Type: GrantFiled: September 22, 2017Date of Patent: July 4, 2023Assignee: J.D. FRANCO & CO., LLCInventors: Michael Calhoun, Jeff Franco
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Patent number: 9320799Abstract: An esterified cellulose ether comprises (i) aliphatic monovalent acyl groups or (ii) groups of the formula —C(O)—R—COOA wherein R is a divalent aliphatic or aromatic hydrocarbon group and A is hydrogen or a cation or (iii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOA, wherein the cellulose ether has anhydroglucose units joined by 1-4 linkages and has methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the esterified cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.Type: GrantFiled: October 24, 2012Date of Patent: April 26, 2016Inventors: Robert L. Schmitt, Robert L. Sammler, Meinolf Brackhagen, Oliver Petermann, Roland Adden, Nicholas S. Grasman, Steven J. Guillaudeu
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Patent number: 8907299Abstract: The present disclosure provides a method of manufacturing film member for laser-driven ion acceleration, a film target, and a method of manufacturing the same, so that only the film member exists at a laser focusing point on the film target, allowing repeated ion acceleration from the film member by focusing high power laser beams thereon. The method includes preparing a film member solution containing a film material to be used for laser-driven ion acceleration; forming a film member on a base substrate by using the film member solution; and separating the film member from the base substrate by dipping the base substrate having the film member formed thereon into a film parting solvent.Type: GrantFiled: December 14, 2011Date of Patent: December 9, 2014Assignee: Gwangju Institute of Science and TechnologyInventors: Il Woo Choi, Jongmin Lee, Chang-Lyoul Lee, KeeHwan Nam, I Jong Kim, Ki Hong Pae
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Patent number: 8894896Abstract: A method of making garment material, the method having the steps: applying coagulant (34) to a substrate (32); applying a foam (38) of the polymeric material to the substrate (32); allowing the coagulant (34) to coagulate some of the foam (38); and removing uncoagulated foam (38) from the substrate (32) to leave a layer of coagulated polymeric material on the substrate (32).Type: GrantFiled: November 20, 2004Date of Patent: November 25, 2014Assignee: A T G Ceylon (Private) LimitedInventors: John Arthur Taylor, Agampodl Sunil Shantha Mendis, Mohamed Fazal Abdeen, Howard William Thomas Goth
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Patent number: 8795573Abstract: A medical article, such as a catheter, is formed from a blend of polyurethane and synthetic polyisoprene (SPIR). The blended medical article is preferably selected and prepared to be relatively rigid at room temperature and relatively flexible at body temperature. An intermittent catheter made from the blend provides a degree of stiffness for its insertion into the patient at room temperature. The catheter becomes softer, and therefore more comfortable, at warmer temperatures (e.g., body temperature) which reduce discomfort after insertion. Optionally, the catheter or a portion thereof can have a hydrophilic coating as to avoid the need for external lubricants. Advantageously, the blended catheter can meet the stiffness, tensile strength, and coefficient of friction requirements of intermittent catheterization applications while avoiding the risk of toxic or allergic reactions in sensitive users.Type: GrantFiled: June 30, 2009Date of Patent: August 5, 2014Assignee: C.R. Bard, Inc.Inventors: Ronald L. Bracken, Fung Bor Chen, Randy Tuck
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Patent number: 8486348Abstract: A device is made by forming sacrificial fibers on a substrate mold. The fibers and mold are covered with a first material. The substrate mold is removed, and the covered fibers are then removed to form channels in the first material.Type: GrantFiled: October 28, 2010Date of Patent: July 16, 2013Assignee: Cornell UniversityInventors: Leon M. Bellan, Harold G. Craighead, Elizabeth A. Strychalski
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Patent number: 8414814Abstract: A biodegradable polymer stent with radiopacity and a method of making and using a stent with enhanced mechanical strength and/or controlled degradation for use in a bodily lumen is described.Type: GrantFiled: October 4, 2010Date of Patent: April 9, 2013Assignee: Biosensors International Group, Ltd.Inventors: Shih-Horng Su, Debashis Dutta
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Patent number: 8282871Abstract: A system includes one or more compacting wall retraction mechanisms for retracting one or more compacting walls of a compactable lightweight concrete block mold having at least two compacting walls. The compacting wall retraction mechanism(s) facilitate release of a compacted lightweight concrete block from the compactable lightweight concrete block mold. The system can include a mold feed conveyor, and a table for receiving the compactable lightweight concrete block mold from the mold feed conveyor. The system can include one or more tube extraction and re-insertion mechanisms for extracting or inserting tubes of a compactable mold. The system can include one or more end wall lock release mechanisms for releasing end walls to remove a molded block from the mold. Mold assembly and disassembly can be controlled by an electronic or computerized controller.Type: GrantFiled: July 5, 2011Date of Patent: October 9, 2012Assignee: Lacuna Inc.Inventors: Franklin David Davies, Rudolf Alfred Heijden, Richard William Kay, George Briggs Middleton, Robert H. Nippert
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Publication number: 20120028525Abstract: The present invention relates to a polymer latex made by free-radical emulsion polymerization comprising polymer particles containing structural units derived from at least one conjugated diene component, whereby said polymer particles comprise at least one hard phase segment and at least one soft phase segment, wherein the polymer latex is particularly suitable for the production of dip-molded articles. Furthermore, the present invention relates to a process for making such a polymer latex, to the use of said polymer latex for the production of dip-molded articles, to a compounded polymer latex composition that is suitable for the production of dip-molded articles, to a method for making dip-molded latex articles, as well as to the latex articles obtained thereby.Type: ApplicationFiled: September 30, 2011Publication date: February 2, 2012Applicant: POLYMER LATEX GmbH & CO. KGInventors: SOREN BUTZ, Volker Erb, Katja Siepen, Hans-Gunter Vogt
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Patent number: 8104097Abstract: Multilayer elastomeric articles and methods of making the same are disclosed in which the outside or outer distal surface of the article is a different color or otherwise visually distinct in appearance from the inside or wearer contacting surface of the article so that the user of the article can readily identify the article as a multilayer elastomeric article. In one aspect, elastomer emulsions, solvent solutions, or plastisols used to form each layer may be modified with the addition of base color and/or colorant components in order to form a colored or patterned layer. In another aspect, one or both of the surfaces of the elastomeric articles (or layers of the articles) may be coated with such a colorant component to sufficiently visually distinguish the layers from each other.Type: GrantFiled: November 10, 2005Date of Patent: January 31, 2012Assignee: SmartHealth, Inc.Inventor: Curtis P. Hamann
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Patent number: 8074652Abstract: A method of forming a cannula from a cannula mandrel assembly comprising a pair of mouthpiece/nasal mandrels and a mating facepiece mandrel. The facepiece mandrel has a pair of conical holes, in an intermediate section thereof, for receiving a leading end of one mouthpiece/nasal mandrel. The conical holes allow the facepiece mandrel to slide along the mouthpiece/nasal mandrels until the conical holes abut with respective mating tapering conical sections and prevent further sliding movement along the mouthpiece/nasal mandrels. Following assembly, the assembly is heated, at least one coating of a polymeric material is applied thereto and heat from the assembly at least partially cures the polymeric material on the assembly. Following curing, the facepiece mandrel and formed cannula are slide along the mouthpiece/nasal mandrels until the facepiece mandrel and formed cannula are removed therefrom. Lastly, the facepiece mandrel is removed from the formed cannula.Type: GrantFiled: July 28, 2009Date of Patent: December 13, 2011Assignee: Salter LabsInventors: James N. Curti, Peter W. Salter
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Publication number: 20110178507Abstract: A medical article, such as a catheter, is formed from a blend of polyurethane and synthetic polyisoprene (SPIR). The blended medical article is preferably selected and prepared to be relatively rigid at room temperature and relatively flexible at body temperature. An intermittent catheter made from the blend provides a degree of stiffness for its insertion into the patient at room temperature. The catheter becomes softer, and therefore more comfortable, at warmer temperatures (e.g., body temperature) which reduce discomfort after insertion. Optionally, the catheter or a portion thereof can have a hydrophilic coating as to avoid the need for external lubricants. Advantageously, the blended catheter can meet the stiffness, tensile strength, and coefficient of friction requirements of intermittent catheterization applications while avoiding the risk of toxic or allergic reactions in sensitive users.Type: ApplicationFiled: June 30, 2009Publication date: July 21, 2011Inventors: Ronald L. Bracken, Fung Bor Chen, Randy Tuck
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Patent number: 7731878Abstract: A process of forming a microperforated plastic film includes providing a post tool having multiple posts, bringing plastic into contact with the post tool such that the plastic conforms to the shape of the posts, and solidifying the plastic into a solidified plastic film having a plurality of microperforations in the shape of the posts. Another step in the process is displacing any skins formed over the holes after solidifying the plastic. The process may be used to form a film for sound absorption where the posts are shaped and arranged to provide microperforations that provide a particular sound absorption spectrum. In one embodiment, the microperforations each have a narrowest diameter of 20 mils, a narrowest diameter less than a film thickness, and a widest diameter greater than narrowest diameter. The widest diameter may be about 125% or more of the narrowest diameter in an embodiment.Type: GrantFiled: December 17, 2004Date of Patent: June 8, 2010Assignee: 3M Innovative Properties CompanyInventor: Kenneth Brian Wood
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Patent number: 7565907Abstract: A method of forming a cannula from a cannula mandrel assembly comprising a pair of mouthpiece/nasal mandrels and a mating facepiece mandrel. The facepiece mandrel has a pair of conical holes, in an intermediate section thereof, for receiving a leading end of one mouthpiece/nasal mandrel. The conical holes allow the facepiece mandrel to slide along the mouthpiece/nasal mandrels until the conical holes abut with respective mating tapering conical sections and prevent further sliding movement along the mouthpiece/nasal mandrels. Following assembly, the assembly is heated, at least one coating of a polymeric material is applied thereto and heat from the assembly at least partially cures the polymeric material on the assembly. Following curing, the facepiece mandrel and formed cannula are slide along the mouthpiece/nasal mandrels until the facepiece mandrel and formed cannula are removed therefrom. Lastly, the facepiece mandrel is removed from the formed cannula.Type: GrantFiled: June 17, 2005Date of Patent: July 28, 2009Assignee: Salter LabsInventors: James N. Curti, Peter W. Salter
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Patent number: 7364682Abstract: A cannula and method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: GrantFiled: December 5, 2003Date of Patent: April 29, 2008Assignee: Salter LabsInventors: James N. Curti, Peter W. Salter
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Patent number: 7045087Abstract: A method for the layer-by-layer assembly of a free standing thin film includes the steps of preparing a support with a suitable substrate; forming a thin film having a plurality of layers onto the substrate utilizing a layer-by-layer assembly process; removing the substrate and thin film from the support; and separating the substrate from the thin film. Various compounds improving the strength, flexibility, tension and other mechanical properties may be included in the assembly to improve the structural quality of the film. Similar effect may also be achieved by cross-linking the applied layers.Type: GrantFiled: March 27, 2001Date of Patent: May 16, 2006Assignee: The Board of Regents for Oklahoma State UniversityInventor: Nicholas A. Kotov
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Patent number: 6984353Abstract: A method for manufacturing a polyimide sleeve where a polyimide sleeve of a high quality can be manufactured easily with a superior yield. A sleeve of a release resin is fitted on a planished metal core or a core at least whose outer surface is made of a release resin, and a polyimide precursor solution is applied on its outer surface. Next, after generating an imide reaction of the polyimide precursor by heating to form an almost completely cured polyimide sleeve, this polyimide sleeve is removed from the core together with the sleeve of the release resin. Furthermore, the polyimide sleeve is separated from the sleeve of the release resin.Type: GrantFiled: June 3, 2002Date of Patent: January 10, 2006Assignee: Showa Electric Wire & Cable Co., Ltd.Inventors: Toshinobu Asai, Masaaki Oya, Takayuki Yamazaki
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Publication number: 20040245670Abstract: A method of forming an elastomeric article includes providing a former, coating the former with a coagulant composition including zinc stearate, dipping the former into a polymer composition including an elastomeric polymer and water, curing the elastomeric polymer at a temperature above the melting point of the zinc stearate, and removing the water from the polymer composition on the former to form the elastomeric article.Type: ApplicationFiled: June 3, 2003Publication date: December 9, 2004Inventors: Robert A. Janssen, Martin S. Shamis, William E. Conley, Sanford E. White
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Publication number: 20040221846Abstract: A cannula comprising a main body which defines an internal chamber therein. A first and second nasal prongs, respectively, communicate with the internal chamber to define first and second nasal prong passages. A mouthpiece has a gas passageway and a retainer passageway and a first end of the gas passageway communicates with the internal chamber while a second free end of the mouthpiece has a gas opening therein. A shape retaining member is received within the retainer passageway to facilitate retaining an adjusted position of an opening of the gas passageway with respect to a remainder of the cannula. A method of forming the cannula is also disclosed.Type: ApplicationFiled: June 4, 2004Publication date: November 11, 2004Inventors: James N. Curti, Peter W. Salter
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Publication number: 20040112383Abstract: A cannula and method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: ApplicationFiled: December 5, 2003Publication date: June 17, 2004Inventors: James N. Curti, Peter W. Salter
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Patent number: 6673299Abstract: A method for manufacturing pellets of hot-melt ink which includes the steps of filling molten ink into a mold cavity defined by a first die and a second die of a mold, allowing the ink to cool down and solidify in the mold cavity, and heating at least one of the first and second dies for re-melting the surface of the ink pellet to facilitate its removal from the mold cavity.Type: GrantFiled: February 22, 2002Date of Patent: January 6, 2004Assignee: Oce-Technologies B.V.Inventors: Peter Joseph Hollands, Wilhelmus Antonius Maria Schreurs, Guido Gerardus Willems, Antonius Johannes Jozef Van Gerven, Reinier Jan Ramekers
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Publication number: 20030124354Abstract: A method of making a colored, multi-layered polymer coated film-based article includes the steps of providing a former in the shape of an article; dipping the former in a first polymeric solution in order to coat the former with a polymeric film of the first polymeric solution; withdrawing the former from the first polymeric solution and allowing the coated former to dry; dipping the former in a second polymeric solution in order to again coat the previously coated former, wherein the second polymeric solution produces a coating of observable contrast to the first coating; withdrawing the former from the second polymeric solution and allowing the second coating to dry, thereby forming an article on the former; and stripping the article from the former. A colored polymer coated film-based article includes a first layer of a polymeric film material; a second layer of polymeric film material formed on top of the first layer, the second layer in visual contrast from said first layer.Type: ApplicationFiled: December 27, 2001Publication date: July 3, 2003Inventor: Maris Vistins
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Patent number: 6533983Abstract: A method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: GrantFiled: January 4, 2001Date of Patent: March 18, 2003Assignee: Salter LabsInventor: James N. Curti
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Patent number: 6533984Abstract: A method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: GrantFiled: June 18, 2001Date of Patent: March 18, 2003Assignee: Salter LabsInventor: James N. Curti
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Publication number: 20030030183Abstract: A method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.Type: ApplicationFiled: October 4, 2002Publication date: February 13, 2003Inventor: James N. Curti
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Patent number: 6383434Abstract: A method of shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.Type: GrantFiled: June 30, 1999Date of Patent: May 7, 2002Assignee: Rochester Medical CorporationInventors: Anthony J. Conway, Philip J. Conway, Richard D. Fryar, Jr.
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Patent number: 6352666Abstract: A powder-free coagulant for use in latex dipping processes comprises a salt stable dispersion of a polychloroprene rubber and an inorganic metal salt. Optionally the coagulant will also contain a powder-free release agent, to aid release of the dipped article from the former, comprising a polypropylene wax emulsion and a cationic surfactant.Type: GrantFiled: November 5, 1999Date of Patent: March 5, 2002Assignee: Ansell Healthcare Products Inc.Inventors: Jeffery G. Nile, Stanley J. Gromelski, Nevin D. Gerber
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Publication number: 20010022411Abstract: A method of shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.Type: ApplicationFiled: June 30, 1999Publication date: September 20, 2001Inventors: ANTHONY J. CONWAY, PHILIP J. CONWAY, RICHARD D. FRYAR
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Patent number: 6154947Abstract: A method for manufacturing a plastic cover for a connector bar that includes providing a mold having a substantially rectangular shaped block, having a first surface and a second surface adjacent the first surface. Both the first and second surfaces each have at least one generally cylindrically shaped projection extending outwardly away from the respective surfaces. To form the plastic cover, the mold is dipped into a polymer solution and is allowed to dwell in the solution for a certain period of time. Next, the plastic cover is cured for a sufficient period of time so that the polymer solution hardens to form the plastic cover. After the cover is formed around the mold, it is removed from within the cover through a slit opening. After the mold is removed from the cover, a connector bar can be inserted through the opening into the cover's cavity.Type: GrantFiled: February 17, 1998Date of Patent: December 5, 2000Assignee: Eger Products, Inc.Inventor: Richard R. Koebbe
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Patent number: 6126880Abstract: A plunger tool for producing a special prophylactic is disclosed. The special features of the plunger tool reside in the special curvatures in its shaped section. The shaped section of the plunger tool exhibits an extreme narrowing, at the deepest point of which there may be at least one annular groove. Unlike prior art transitions, the transition from the large diameter to the reservoir section is not steep and straight but takes the form of an S-shaped curve. An exact contour of the annular grooves on the surface of the plunger tool is essential for their production and can be done only by the use of a precision diamond abrasive point.Type: GrantFiled: September 30, 1997Date of Patent: October 3, 2000Assignee: Innovation & Art GmbHInventor: Thomas Scholl
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Patent number: 6030201Abstract: A process and a device for producing a thin-walled prophylactic, which is manufactured in a plurality of immersion stages, is disclosed. The device includes an endless conveyer belt on which an elongated cylindrical immersion tool is mounted. The process substantially consists of three immersion stages and three different immersion tubs, whereby the depths of immersion of the immersion tools substantially deviate from each other. After each immersion stage, a predetermined heat treatment of the elastic material applied to the immersion tool is carried out.Type: GrantFiled: November 27, 1996Date of Patent: February 29, 2000Inventor: Thomas Scholl
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Patent number: 5833911Abstract: A method for forming a glove in an elastomer deposition process employs a folded glove form. The form has a hand forming portion having palm and finger forming portions. The finger forming portions terminate in distal tips and the cuff forming portion terminates in a terminal end for forming the cuff opening. The form is folded so that finger forming portion distal tips and the cuff forming portion terminal end lie in separate planes and in facing relationship to one another. To form the glove, the form is vertically oriented and dipped into a bath of elastomer with both the cuff forming portion terminal end and the finger portion distal tips facing upwards.Type: GrantFiled: January 7, 1997Date of Patent: November 10, 1998Assignee: Johnson & Johnson Medical, Inc.Inventors: Francisco Moises Llort, Mao-Ching Chen, Leslie Edward Blackford
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Patent number: 5779964Abstract: A male urinary catheter and method of making same. The catheter employs a condom like sheath of silicone rubber which sealingly engages the penis of the patient. A catheter stem at the distal end of the sheath couples to a urine collection system. The sheath is sealed to the penis by an adhesive which is applied to the outer surface of the sheath at the time of manufacture. A surface preparation layer is applied over the adhesive. The sheath is rolled up from the proximal end. The sheath is unrolled to apply it to the patient. During the unrolling process, the adhesive layer is removed from the outer surface and deposited on the inner surface of the sheath.Type: GrantFiled: September 17, 1993Date of Patent: July 14, 1998Assignee: Mentor CorporationInventors: Daniel P. Welch, Thomas D. Ryan, Erik M. Knutson
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Patent number: 5756036Abstract: A method and apparatus for manufacturing pharmaceutical capsules use an aqueous solution of a thermogelling cellulose ether composition and use capsule body pins and capsule cap pins as molds. The method involves heating the pins, dipping the pins into the solution to cause the solution to gelatinize on the surface of the pins, removing the pins and drying the gelatinized solution on the surface of the pins to form capsule bodies and capsule caps. Pins are heated pre-dip and post-dip to facilitate gelating. Counterflow air is applied to provide drying from the inside. Capsule parts are removed by gripping. Capsule parts may have a thick wall and a stiffening ring.Type: GrantFiled: June 5, 1995Date of Patent: May 26, 1998Assignee: GS Technologies, Inc.Inventors: Ralph R. Grosswald, Jeffory B. Anderson, Clair S. Andrew
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Patent number: 5632948Abstract: A method of manufacturing a hand covering with a pad attached thereto wherein a pad is placed in a recess on a former, and a precursor material such as liquid latex is thereafter applied to the former and pad. The precursor material is then cured to form the hand covering, which is stripped from the former and everted for use with the pad bonded thereto.Type: GrantFiled: December 20, 1995Date of Patent: May 27, 1997Assignee: Megladon IndustriesInventor: Barrett H. Moore
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Patent number: 5597505Abstract: A hole form apparatus for use in forming and/or maintaining a hole or cavity in environments which would otherwise tend to close the hole, functions for example in maintaining holes cut in ice, or for making holes or cavities in other solidifying liquids or mixtures, such as concrete, or in compactable materials such as soil. The form has a tubular body that is hollow and tapered so that it is narrower at the bottom, which is closed, than at the top. Disposed within the body is a weight connected to a shaft which extends axially through the top surface of the tube to a handle attached at its end. The form is removable from a formed hole by pulling forcefully on the handle, causing the weight to strike the inside top surface of the tube in one embodiment, or a removable strike plate in a second embodiment. This impact and the shock it causes, working together with the tapered shape of the tube and its smooth surface enable the tube to be broken free from the walls of the formed hole.Type: GrantFiled: January 11, 1995Date of Patent: January 28, 1997Inventors: Donald H. Koenig, Myron N. Koenig
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Patent number: 5464892Abstract: This invention relates to vinyl chloride resin composition suitable for automobile interior skin material of which the die pollution is low, die releasing capacity is light and amine resistance is high.This invention provides the vinyl chloride resin composition for powder material forming characterized by the components of the mixture consisting of: 100 parts for weight of vinyl chloride resin, 0.01 to 3 parts for weight of the thermal stabilizer indicated by general formula (RCO0).sub.2 M(in the formula, R: alkyl group having 10 to 20 carbons, M: lead, zinc, magnesium, calcium, cadmium, strontium or barium), 0.01 to 5 parts for weight of hydroxy stearic acid and/or hydroxy stearic acid dister polymer, and plasticizer.Type: GrantFiled: January 19, 1993Date of Patent: November 7, 1995Assignees: Nippon Zeon Co., Ltd., Zeon Kasei Co., Ltd., Toyota Jidosha KabushikaishaInventors: Seiko Yada, Yukihiro Ogawa, Takao Nomura, Yoshiro Umemoto
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Patent number: 5380182Abstract: This invention relates to the use of a flexible, heat resistant mold member. The mold member is useful in molding processes such as dip or slush molding. The mold member maintains its structural integrity and may therefore be used as an insert in the article being molded to provide flexible stability at specific locations within the article. The mold member is made of a material which is substantially non-reactive with the molded article. The molded article may be any article made from a plastisol such as a binaural for a stethoscope having single or double lumens.Type: GrantFiled: April 5, 1994Date of Patent: January 10, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Thomas J. Packard, James H. Quackenbush
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Patent number: 5304337Abstract: A glove configuration and method for making same of a thin flexible film is shown. The glove and form having an ambidextrous shape useful for either the left or right hand use and a cuff configuration which resists rolldown. The configuration of the cuff includes a corrugated portion and a broadly fluted portion. The former giving increased strength and thickness and the latter providing a place to improve the ease with which the glove may be stripped from its dipping form.Type: GrantFiled: December 27, 1988Date of Patent: April 19, 1994Assignee: Becton, Dickinson and CompanyInventors: Fung-Bor Chen, Wu-Nan Huang, Carl M. Rogers
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Patent number: 5290499Abstract: An apparatus (10) for molding a thin-wall plastic shell includes a powder box (12) and a mold box (14). The powder box (12) is positioned to an operative position wherein an opening (18) in the powder box (12) is brought in proximity to the mold surface (20) of the mold. A contoured selective charge application panel (36) has a gasket (30) about the end thereof and the selective charge application panel (36) is extended vertically from the opening (18) at variable heights to perfect a sealed surface at the opening (18) and the periphery (22) of the mold surface (20) to mask vertically extending waste surfaces (14a, 14b).Type: GrantFiled: May 21, 1992Date of Patent: March 1, 1994Assignee: Davidson Textron Inc.Inventor: Robert Tischler
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Patent number: 5266557Abstract: A method of fabricating a superconducting ceramic pipe including the steps of: melting a ceramic powder having a predetermined composition to form a melt; filling a supporting tube with the melt by a suction caused by a vacuum pressure; partially solidifying an outer part of the melt near the tube to form a shell (i.e., a ceramic pipe); discharging an inner unsolidified part at the center of the tube from the tube by gravity, to form a solidified ceramic pipe on the inside surface of the tube; and heat treating the ceramic pipe to convert it into a superconducting pipe. When a supporting tube with a bottom plate is used, the melt is poured into the tube, and the tube is turned over to remove an unsolidified melt, whereby a superconducting ceramic pipe with a bottom is fabricated.Type: GrantFiled: November 26, 1991Date of Patent: November 30, 1993Assignees: Fujitsu Limited, Yoshihiro AbeInventors: Yoshihiro Abe, Hideo Hosono, Takeshi Akamatsu
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Patent number: 5207965Abstract: An elastic mould of this invention includes a pattern and a fixing sheet which is integrally mounted at an open edge of the pattern. The elastic mould is manufactured by dipping a pattern mounted on a plate into an elastic body-producing solution to form a gel-like elastic film, withdrawing, drying and vulcanizing the object thus formed, and peeling the elastic film off the pattern to obtain a mould having a fixing member as an integral part of the mould.Type: GrantFiled: November 20, 1991Date of Patent: May 4, 1993Assignee: Komine Rubber Industrial Co., Ltd.Inventors: Shigeo Komine, Toshiya Fujishima
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Patent number: 5137679Abstract: A method of molding utilizes an apparatus (10) for molding a thin-wall plastic shell which includes a powder box (12) and a mold box (14). The powder box (12) is positioned to an operative position wherein an opening (18) in the powder box (12) is brought in proximity to the mold surface (20) of the mold. A bellows member (34) having a gasket (42) about the end thereof is extended from the opening (18) to perfect a sealed passageway between the opening (18) and the periphery (22) of the mold surface (20).Type: GrantFiled: March 4, 1992Date of Patent: August 11, 1992Assignee: Davidson Textron Inc.Inventors: Robert Tibbetts, Stuart Kaiser
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Patent number: 5135690Abstract: A process for producing a cylindrical reinforcing fibrous molding by sealing openings at opposite ends of a porous cylindrical disintegratable mold, immersing the mold into an aqueous solution of a molding material containing reinforcing fibers and an inorganic binder, and depositing the molding material onto the outer peripheral surface of the mold by applying suction within the mold to form a molding blank; pressing the molding blank against the mold to adjust the shape of the molding blank; disintegrating the mold to remove it from the blank; and heating the molding blank to partially bond the reinforcing fibers with the inorganic binder.Type: GrantFiled: January 22, 1987Date of Patent: August 4, 1992Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takeshi Imura, Masaki Sakakibara, Takahiro Suenaga, Shigeo Kaiho, Kanji Murata, Hitoshi Karasawa, Kazuya Sakamoto, Masahiro Inoue, Masanobu Ishikawa, Takashige Hara
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Patent number: 5128088Abstract: A continuous method for making adhesive-lined condom catheters for male urinary drainage. The method involves successive steps carried out with respect to a dipping mandrel and a latex catheter being formed upon it, all of which may be performed automatically as the mandrel is advanced from one station to the next.Type: GrantFiled: August 14, 1990Date of Patent: July 7, 1992Assignee: Hollister IncorporatedInventors: Gary D. Shimomura, Eric D. Ellingson
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Patent number: 5116551Abstract: A method and apparatus for producing an article, by covering at least a portion of a microwave heatable former with a liquid-containing material, applying microwave radiation to heat the former so as to leave a dry solid coating on the former, and effecting relative separation between the former and the dry solid coating so as to produce the article.Type: GrantFiled: May 9, 1991Date of Patent: May 26, 1992Inventors: Roderick I. Davidson, Peter R. Hornsby
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Patent number: 5047192Abstract: Process of manufacturing a cryogenic regenerator including a plurality of channels for conducting a working fluid, including the steps of providing a cylindrical forming member having a longitudinal axis and a plurality of peripheral slots displaced axially and oriented substantially parallel to the longitudinal axis of the cylindrical forming member, or having a continuous spiral peripheral slot of sufficiently small pitch such that the convolutions thereof are oriented substantially parallel to such longitudinal axis; providing epoxy which is relatively flexible upon hardening, loading the epoxy with thermally conductive material for enhancing the radial thermal conductivity of the cryogenic regenerator, and applying the epoxy to the periphery of the cylindrical forming member to fill the plurality of slots or the spiral peripheral slot with the epoxy and to form a radial layer of the epoxy of a generally first radial thickness allowing the epoxy to harden and thereafter reducing the radial thickness of theType: GrantFiled: July 10, 1989Date of Patent: September 10, 1991Assignee: CDC PartnersInventors: John R. Purcell, Raymond E. Sarwinski
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Patent number: 5039461Abstract: This invention relates more particularly to a process for making a balloon to be used with an endoscope in which, according to the present invention, the balloon is processed of a basic material solution including a natural rubber latex or synthetic rubber latex to which is added a sensitizer to radiation cross-linking so as to act and accelerate its cross-linking effect by irradiating ionizing radiations such as gamma (.gamma.) rays utilizing a Co-60 source upon the rubber latex mixed with the sensitizer to radiation cross-linking, which is characterized in that such the balloon can be provided without any vulcanizing process as in the conventional, process.Type: GrantFiled: September 25, 1989Date of Patent: August 13, 1991Assignee: Okamoto Industries Inc.Inventor: Kyogo Tsushima
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Patent number: 4993137Abstract: A method for manufacturing capsules causes the solution of thermo-gelling material to gelatinize once, and then drys the gel. Therefore the process of manufacturing capsules is less affected by drying conditions, thus providing capsules of uniform wall thickness without wrinkle. In the apparatus, circulating capsule pins are dipped in the solution of thermo-gelling material, thus the solution adheres to the pins. The pins are rotated upside down, thus thickness of the solution adhering to the pins becoming uniform. Then the pins are retained in the vessel maintained at a higher temperature than the gelling temperature of the solution, and the solution adhering to the pins is gelatinized. The thus-formed gel is dried through a drying device, and the dried gel, i.e. capsules, is removed from capsule pins.Type: GrantFiled: December 13, 1989Date of Patent: February 19, 1991Assignee: Shin-Etsu Chemicals Co., Ltd.Inventors: Hiroaki Muto, Yuichi Nishiyama, Toru Chiba, Kiyoshi Araume
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Patent number: 4747992Abstract: A process is disclosed for forming at least one thin substantially uniform fluid coating comprising polymeric film forming material on a cylindrical mandrel, solidifying the fluid coating to form a uniform solid coating and separating the uniform solid coating from the mandrel. The process may comprise forming at least one thin substantially uniform fluid coating comprising polymeric film forming material around a cylindrical mandrel, the mandrel having a larger mass or lower thermal conductivity than the polymeric film forming material and a critical surface tension greater than the surface tension of the fluid coating, solidifying the fluid coating to form at least one thin substantially uniform solid coating comprising the polymeric film forming material around the cylindrical mandrel, heating both the uniform solid coating and the mandrel to a temperature at least above the apparent T.sub.Type: GrantFiled: March 24, 1986Date of Patent: May 31, 1988Inventors: Donald S. Sypula, Merlin E. Scharfe, Dennis A. Abramsohn, Paul J. Brach, Clifford H. Griffiths, Deborah J. Nichol-Landry, Andrew R. Melnyk, John W. Spiewak, Joseph Mammino, Edward C. Williams, Lieng-Huang Lee, Christine J. Tarnawskyj