Patents by Inventor Michael D. Jensen
Michael D. Jensen 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: 8091809Abstract: A shredder is disclosed having a jam proof system. In one embodiment, the jam proof system provides a thickness detector having a contact member which displaces as an article is inserted into a throat of the shredder and a resistance generating mechanism configured to provide a resistance force to the contact member, in response to displacement of the contact member. The greater the thickness of the material the greater the resistance force that will be realized. When the material reaches a predetermined thickness, there will be a significant change in the resistance force. The resistance generating mechanism may include at least two spring mechanisms serially arranged, such as, a first spring mechanism and a second spring mechanism. This feature provides immediate and direct feedback to the user that the article inserted into the shredder may be too thick.Type: GrantFiled: March 24, 2009Date of Patent: January 10, 2012Assignee: Fellowes, Inc.Inventors: Jin Hu, Qingcheng Cai, Aiyu Huang, Michael D Jensen
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Publication number: 20110319575Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.Type: ApplicationFiled: September 8, 2011Publication date: December 29, 2011Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy L. Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yáng, Matthew G. Thorn
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Patent number: 8058200Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with a borinic acid or boronic acid prior to contacting this mixture with the acidic activator-support and an organoaluminum compound.Type: GrantFiled: May 17, 2007Date of Patent: November 15, 2011Assignee: Chevron Phillips Chemical Company, L.P.Inventors: Qing Yang, Michael D. Jensen, Matthew G. Thorn, Kumudini C. Jayaratne, Tony R. Crain
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Patent number: 8030241Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.Type: GrantFiled: October 29, 2009Date of Patent: October 4, 2011Assignee: Chevron Phillips Chemical Company, LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
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Patent number: 8028942Abstract: An assembly has a bin level detection system having at least one sensor positioned to receive radiation reflected off any material deposited in a bin and to determine an intensity of the reflected radiation. The intensity corresponds to an amount or level of shredded material deposited in the bin. The system may detect radiation from one or more emitters, or, alternatively, detect ambient light entering the bin via a window. A level indicator system may also be provided to indicate the amount of material deposited in the bin, including if the bin is full. The assembly may comprise a shredder and a shredder housing.Type: GrantFiled: August 1, 2008Date of Patent: October 4, 2011Assignee: Fellowes, Inc.Inventors: Tai Hoon Kim Matlin, Michael D. Jensen, Jakub M. Krynski
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Publication number: 20110201770Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: ApplicationFiled: April 26, 2011Publication date: August 18, 2011Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: QING YANG, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Publication number: 20110190460Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.Type: ApplicationFiled: February 3, 2011Publication date: August 4, 2011Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Kumudini C. Jayaratne, Michael D. Jensen, Qing Yang
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Patent number: 7960487Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: GrantFiled: October 1, 2009Date of Patent: June 14, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Patent number: 7909273Abstract: A shredder is disclosed having a gas detection system. According to one embodiment, one or more sensors may be placed inside the housing of the shredder to detect the presence of gases, and in particular, flammable or combustible gases. If a gas is sprayed into the shredder, the sensor(s) will detect the gas and the shredder may be deactivated. In addition, an exhaust fan may also be activated to purge the gas from the housing. Further, one or more indicators may be provided to alert the user that the sensor has detected gas. For example, a visible signal and/or audible sound may be generated to alert the user that the sensor has detected a flammable or combustible gas.Type: GrantFiled: January 7, 2009Date of Patent: March 22, 2011Assignee: Fellowes, Inc.Inventors: Brian A. Andrews, Michael D. Jensen
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Patent number: 7910763Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.Type: GrantFiled: January 21, 2009Date of Patent: March 22, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Kumudini C. Jayaratne, Michael D. Jensen, Qing Yang
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Patent number: 7906603Abstract: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.Type: GrantFiled: May 13, 2010Date of Patent: March 15, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora, Michael D. Jensen, Kathy S. Collins
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Patent number: 7842763Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.Type: GrantFiled: October 6, 2008Date of Patent: November 30, 2010Assignee: Chevron Phillips Chemical Company LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
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Publication number: 20100288861Abstract: A shredder includes a housing having a throat for receiving at least one article to be shredded and a shredder mechanism received in the housing. The shredder mechanism includes a motor and cutter elements, and enables the articles to be shredded to be fed into the cutter elements. The motor is operable to drive the cutter elements so that the cutter elements shred the articles into shredded particles. The shredder also includes a plurality of sensors provided along the throat for sensing articles. A controller is coupled to the motor and the sensors, the controller being configured to perform a predetermined motor control operation of the motor responsive to the sensors sensing the articles inserted into the throat at an angle above a predetermined angle threshold or the sensors sensing with a predetermined sensing pattern the at least one rectangular sheet of paper inserted into the throat.Type: ApplicationFiled: May 15, 2009Publication date: November 18, 2010Applicant: Fellowes, Inc.Inventors: Qingcheng CAI, Michael D. Jensen
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Publication number: 20100280199Abstract: This invention provides a compositions that are useful for polymerizing at least one monomer into at least one polymer.Type: ApplicationFiled: June 14, 2010Publication date: November 4, 2010Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: MAX P. MCDANIEL, ELIZABETH A. BENHAM, SHIRLEY J. MARTIN, KATHY S. COLLINS, JAMES L. SMITH, GIL R. HAWLEY, CHRISTOPHER E. WITTNER, MICHAEL D. JENSEN
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Patent number: 7823815Abstract: Disclosed herein is a shredder having a throat for receiving at least one article to be shredded therethrough and a shredder mechanism received in a shredder housing which is driven to shred the at least one article fed therein. At least one sensor emits and detects radiation to detect the presence of the at least one article or shredded particles. The sensor communicates with a controller to operate the shredder mechanism. The controller also calibrates an intensity of the radiation of the sensor(s) to or within a predetermined amount above a minimum level in order to reduce wear and run-on conditions.Type: GrantFiled: October 15, 2008Date of Patent: November 2, 2010Assignee: Fellowes, Inc.Inventor: Michael D. Jensen
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Patent number: 7823816Abstract: Disclosed herein is a shredder having a throat for receiving at least one article to be shredded therethrough and a shredder mechanism received in a shredder housing which is driven to shred the at least one article fed therein. At least one light-emitting diode (LED) acts as a sensor by emitting and detecting radiation when operated in a forward-biased and reverse-biased direction. The LED(s) may be used to detect the presence of the at least one article in the throat or an amount of shredded particles in a bin. The LED(s) communicate with a controller to operate the shredder mechanism. The controller may also calibrate an intensity of the radiation to or within a predetermined amount above a minimum level in order to reduce wear and run-on conditions.Type: GrantFiled: January 16, 2009Date of Patent: November 2, 2010Assignee: Fellowes, Inc.Inventor: Michael D. Jensen
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Publication number: 20100243774Abstract: A shredder is disclosed having a jam proof system. In one embodiment, the jam proof system provides a thickness detector having a contact member which displaces as an article is inserted into a throat of the shredder and a resistance generating mechanism configured to provide a resistance force to the contact member, in response to displacement of the contact member. The greater the thickness of the material the greater the resistance force that will be realized. When the material reaches a predetermined thickness, there will be a significant change in the resistance force. The resistance generating mechanism may include at least two spring mechanisms serially arranged, such as, a first spring mechanism and a second spring mechanism. This feature provides immediate and direct feedback to the user that the article inserted into the shredder may be too thick.Type: ApplicationFiled: March 24, 2009Publication date: September 30, 2010Applicant: Fellowers, Inc.Inventors: Jin HU, Qingcheng CAI, Aiyu HUANG, Michael D. JENSEN
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Patent number: 7790820Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.Type: GrantFiled: October 15, 2009Date of Patent: September 7, 2010Assignee: Chevron Phillips Chemical Company LPInventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
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Publication number: 20100222537Abstract: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.Type: ApplicationFiled: May 13, 2010Publication date: September 2, 2010Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora, Michael D. Jensen, Kathy S. Collins
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Patent number: 7763561Abstract: This invention provides a compositions that are useful for polymerizing at least one monomer into at least one polymer.Type: GrantFiled: October 30, 2007Date of Patent: July 27, 2010Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith, Gil R. Hawley, Christopher E. Wittner, Michael D. Jensen