Patents by Inventor Laurence B. Sperry
Laurence B. Sperry 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: 6862868Abstract: A system for heating and dispensing foam-in-bag packaging bags comprises a housing that rotatably supports a roll of a continuous web of interconnected foam-in-bag packaging bags, and at least one heater for heating bags to an elevated temperature prior to the bags being dispensed from the housing. A heated bag is dispensed and is detached from the web, and is then manipulated to mix foam precursor chemicals contained in separate compartments in the bag to begin a foam-forming reaction in the bag.Type: GrantFiled: December 13, 2002Date of Patent: March 8, 2005Assignee: Sealed Air Corporation (US)Inventors: Laurence B. Sperry, Eric Kane, Jesse Drake, Anthony Davlin
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Publication number: 20040209026Abstract: A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet.Type: ApplicationFiled: February 4, 2004Publication date: October 21, 2004Inventors: George T. Bertram, William R. Armstrong, Lawrence J. Pillote, William J. Mahon, Robert D. Wheeler, Laurence B. Sperry
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Publication number: 20040206654Abstract: A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet.Type: ApplicationFiled: February 4, 2004Publication date: October 21, 2004Inventors: George T. Bertram, William R. Armstrong, Lawrence J. Pillote, William J. Mahon, Robert D. Wheeler, Laurence B. Sperry
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Publication number: 20040112011Abstract: A system for heating and dispensing foam-in-bag packaging bags comprises a housing that rotatably supports a roll of a continuous web of interconnected foam-in-bag packaging bags, and at least one heater for heating bags to an elevated temperature prior to the bags being dispensed from the housing. A heated bag is dispensed and is detached from the web, and is then manipulated to mix foam precursor chemicals contained in separate compartments in the bag to begin a foam-forming reaction in the bag.Type: ApplicationFiled: December 13, 2002Publication date: June 17, 2004Applicant: Sealed Air CorporationInventors: Laurence B. Sperry, Eric Kane, Jesse Drake, Anthony Davlin
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Patent number: 6729110Abstract: A dunnage bag includes a sealed, flexible bag, and a rigid valve assembly connected in fluid communication to the flexible bag. The valve assembly has a rigid collar which mounts in an opening in a wall of a container to receive an exit end of a fill nozzle of an inflating system which supplies pressurized gas for inflating the flexible bag.Type: GrantFiled: January 22, 2001Date of Patent: May 4, 2004Assignee: Sealed Air CorporationInventors: Laurence B. Sperry, Eric Kane
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Patent number: 6712201Abstract: A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet.Type: GrantFiled: May 14, 2002Date of Patent: March 30, 2004Assignee: Sealed Air CorporationInventors: George T. Bertram, William R. Armstrong, Lawrence J. Pillote, William J. Mahon, Robert D. Wheeler, Laurence B. Sperry
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Publication number: 20040045261Abstract: A packaging apparatus includes a pair of rolls forming a nip through which two web portions are passed with an item to be packaged between the web portions. The rolls include resiliently compliant roll portions that deform to accommodate the thickness of the item, and the roll portions press the web portions to seal them together in peripheral regions surrounding the item and to center the item between the webs in the thickness direction. The apparatus also includes side seal devices that traverse inwardly toward the item to seal the webs together close to the item's opposite side edges to prevent the item from laterally shifting. The web portions may have cohesive disposed on their facing surfaces such that the web portions adhere to each other with pressure but tend not to adhere to the packaged item or other surfaces.Type: ApplicationFiled: September 9, 2002Publication date: March 11, 2004Applicant: Sealed Air Corporation (US)Inventors: Laurence B. Sperry, Anthony O. Davlin, Eric A. Kane, Jesse S. Drake
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Patent number: 6561236Abstract: An inflatable packing article including a flexible, air tight bag; and a valve assembly defining a passage through which air is introduced into the bag during inflation, the valve assembly having an inlet end, the inlet end having an outer exposed surface with an adhesive adhered thereto and circumscribing a predefined area through which access to the passage is obtained.Type: GrantFiled: March 8, 2000Date of Patent: May 13, 2003Assignee: Sealed Air Corporation (US)Inventors: Laurence B. Sperry, Eric A. Kane, Jesse S. Drake
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Patent number: 6253919Abstract: A dunnage bag includes a sealed, flexible bag, and a rigid valve assembly connected in fluid communication to the flexible bag. The valve assembly has a rigid collar which mounts in an opening in a wall of a container to receive an exit end of a fill nozzle of an inflating system which supplies pressurized gas for inflating the flexible bag.Type: GrantFiled: April 13, 1998Date of Patent: July 3, 2001Assignee: Sealed Air CorporationInventors: Laurence B. Sperry, Eric Kane
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Patent number: 6253806Abstract: A method of inflating a dunnage bag in a box including the steps of inflating the dunnage bag; with one or more sensors, monitoring deflection of at least two surfaces of the box while inflating the dunnage bag; upon detecting through monitoring that deflection of either of at least two surfaces reaches a corresponding preseleted threshold, automatically terminating inflating of the box.Type: GrantFiled: August 26, 1998Date of Patent: July 3, 2001Assignee: Sealed Air CorporationInventors: Laurence B. Sperry, Jesse S. Drake
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Publication number: 20010001921Abstract: A dunnage bag includes a sealed, flexible bag, and a rigid valve assembly connected in fluid communication to the flexible bag. The valve assembly has a rigid collar which mounts in an opening in a wall of a container to receive an exit end of a fill nozzle of an inflating system which supplies pressurized gas for inflating the flexible bag.Type: ApplicationFiled: January 22, 2001Publication date: May 31, 2001Applicant: Sealed Air Corporation, a Delaware CorporationInventors: Laurence B. Sperry, Eric Kane
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Patent number: 6003288Abstract: A packaging device is disclosed for forming packaging cushions of the type that include a plastic bag filled with a solid foam, and wherein the cushions are initially formed of a plastic bag filled with a foamable material that reacts and then hardens to form solid foam. The device comprises means for advancing a sheet of plastic film material that has been center-folded to form a doubled web with one closed edge defined by the center fold and one open edge defined by the adjacent edges of the sheet. Means are included for injecting a foamable composition into the center-folded web between the two folded portions of the sheet, as are means for forming a substantially linear seal along the open edge and substantially parallel to the open edge to thereby longitudinally seal the open edge of the web.Type: GrantFiled: August 11, 1995Date of Patent: December 21, 1999Assignee: Sealed Air CorporationInventors: Charles R. Sperry, Laurence B. Sperry, Craig E. Robert, Michael J. Seckler, Brian Kent Farison, Abraham N. Reichental
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Patent number: 5679208Abstract: A sealing and severing apparatus is disclosed for sealing plastic bags formed in succession from stock plastic film material and then severing the sealed bags from one another. The bags are filled with a foamable composition while they are being formed so that when the formed and filled bags are placed in a container, the foamable composition fills the bag with foam to thereby produce a customized foam cushion for any objects in the container.Type: GrantFiled: March 5, 1996Date of Patent: October 21, 1997Assignee: Sealed Air CorporationInventors: Charles R. Sperry, Laurence B. Sperry
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Patent number: 5575435Abstract: A sealing and severing apparatus is disclosed for sealing plastic bags formed in succession from stock plastic film material and then severing the sealed bags from one another. The bags are filled with a foamable composition while they are being formed so that when the formed and filled bags are placed in a container, the foamable composition fills the bag with foam to thereby produce a customized foam cushion for any objects in the container.Type: GrantFiled: December 22, 1994Date of Patent: November 19, 1996Assignee: Sealed Air CorporationInventors: Charles R. Sperry, Laurence B. Sperry
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Patent number: 5376219Abstract: A sealing and severing apparatus is disclosed for sealing plastic bags formed in succession from stock plastic film material and then severing the sealed bags from one another. The bags are filled with a foamable composition while they are being formed so that when the formed and filled bags are placed in a container, the foamable composition fills the bag with foam to thereby produce a customized foam cushion for any objects in the container.Type: GrantFiled: September 26, 1991Date of Patent: December 27, 1994Assignee: Sealed Air CorporationInventors: Charles R. Sperry, Laurence B. Sperry
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Patent number: 5255847Abstract: A cleaning system is disclosed for pumping compressed air and cleaning solvent to the injection cartridge of a foam-in-place packaging system. The cleaning system comprises a solvent tank for containing a stock supply of solvent; a source of compressed air; and an air-activated submersible solvent pump in air flow communication with the compressed air source. The system also includes an injection cartridge of a foam-in-place packaging system in liquid communication with the solvent pump; and a regulator in air flow communication with the compressed air source, the pump, and the injection cartridge. The regulator distributes compressed air to operate the pump and to travel with solvent to the injection cartridge to provide a cleaning mixture of solvent and air to the cartridge.Type: GrantFiled: September 26, 1991Date of Patent: October 26, 1993Assignee: Sealed Air CorporationInventors: Charles R. Sperry, Henry Ruddy, Laurence B. Sperry