Patents by Inventor Ashok Mehan
Ashok Mehan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7786205Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.Type: GrantFiled: March 26, 2007Date of Patent: August 31, 2010Assignee: Tyco Electronics CorporationInventors: Ashok Mehan, Daniel A. Chandler, Erling Hansen, Rene J. Revueltas, Stephen P. Tordoff, Bryan P. Williams
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Patent number: 7413785Abstract: Provided is a melt composition for a heat shrinkable foam structure that includes at least one base polymer and a blowing agent made from at least one heat-activated chemical compound encapsulated by a plurality of polymeric shells. The melt composition may also include a crosslinking promoter or other additives. Also provided is a method for making a heat-shrinkable polymer foam tubing. A melt composition containing at least one base polymer material having a melt temperature and a blowing agent having an activation temperature is provided. The melt composition is mixed at an elevated temperature. The melt composition is then extruded through a die at a high temperature. The extruded foam tube is then processed, often heat-processed.Type: GrantFiled: August 7, 2003Date of Patent: August 19, 2008Assignee: Tyco Electronics CorporationInventors: Ashok Mehan, Rene Jairo Revueltas, Jim J. Imperiale
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Publication number: 20070185278Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.Type: ApplicationFiled: March 26, 2007Publication date: August 9, 2007Applicant: Tyco Electronics CorporationInventors: Ashok Mehan, Daniel Chandler, Erling Hansen, Rene Revueltas, Stephen Tordoff, Bryan Williams
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Patent number: 7198686Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.Type: GrantFiled: November 17, 2003Date of Patent: April 3, 2007Assignee: Tyco Electronics CorporationInventors: Ashok Mehan, Daniel A. Chandler, Erling Hansen, Rene J. Revueltas, Stephen P. Tordoff, Bryan P. Williams
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Publication number: 20070023141Abstract: Hot melt adhesives include a thermoplastic terpolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene and a terpolymer of glycidyl methacrylate. The adhesives will bond well to a variety of substrates, in particular substrates of very low surface energy such as polytetrafluoroethylene (PTFE).Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Applicant: Tyco Electronics CorporationInventors: Ashok Mehan, Rene Revueltas, Bryan Williams
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Publication number: 20050031811Abstract: Provided is a melt composition for a heat shrinkable foam structure that includes at least one base polymer and a blowing agent made from at least one heat-activated chemical compound encapsulated by a plurality of polymeric shells. The melt composition may also include a crosslinking promoter or other additives. Also provided is a method for making a heat-shrinkable polymer foam tubing. A melt composition containing at least one base polymer material having a melt temperature and a blowing agent having an activation temperature is provided. The melt composition is mixed at an elevated temperature. The melt composition is then extruded through a die at a high temperature. The extruded foam tube is then processed, often heat-processed.Type: ApplicationFiled: August 7, 2003Publication date: February 10, 2005Inventors: Ashok Mehan, Rene Revueltas, Jim Imperiale
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Publication number: 20040101651Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.Type: ApplicationFiled: November 17, 2003Publication date: May 27, 2004Inventors: Ashok Mehan, Daniel A. Chandler, Erling Hansen, Rene J. Revueltas, Stephen P. Tordoff, Bryan P. Williams
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Patent number: 6650033Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.Type: GrantFiled: August 6, 2001Date of Patent: November 18, 2003Assignee: Tyco Electronics CorporationInventors: Ashok Mehan, Daniel A. Chandler, Erling Hansen, Rene J. Revueltas, Stephen P. Tordoff, Bryan P. Williams
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Patent number: 5770819Abstract: Insulated wires and cables, especially local area network (LAN) cables, in which the conductors are covered by foamed insulation made from a composition containing an ECTFE polymer having a crystallinity of at least 50% by weight, and, dispersed in the ECTFE polymer, particles of a PTFE polymer having a crystallinity of at least 50%, the ratio by weight of the ECTFE polymer to the PTFE polymer being 1:1 to 9:1.Type: GrantFiled: October 23, 1995Date of Patent: June 23, 1998Assignee: Raychem CorporationInventor: Ashok Mehan
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Patent number: 5468782Abstract: Novel compositions containing an ECTFE polymer and PTFE particles dispersed therein, and insulated wires and cables, especially local area network (LAN) cables in which the conductors are covered by foamed insulation made from such compositions.Type: GrantFiled: February 18, 1995Date of Patent: November 21, 1995Assignee: Raychem CorporationInventor: Ashok Mehan
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Patent number: 5059483Abstract: Shaped articles of cross-linked polymers comprising a first component having little or no cross-linking and high elongation, and a second component having a relatively high level of cross-linking and low elongation. Such articles are particularly useful in the form of electrical insulation, the first component being adjacent to a wire or other conductor. Preferably each of the components comprises a crystalline fluorocarbon polymer, especially an ethylene/tetrafluoroethylene copolymer. Such articles can be prepared by (1) melt-extruding a first polymeric composition which contains little or no cross-linking agent, and a second polymeric composition which contains a greater amount of cross-linking agent, (2) maintaining the two extrudates under conditions such that cross-linking agent migrates from the second to the first composition, and (3) cross-linking both compositions, preferably by radiation.Type: GrantFiled: April 17, 1989Date of Patent: October 22, 1991Assignee: Raychem CorporationInventors: Hans E. Lunk, Neal Enault, Ashok Mehan