Patents by Inventor George Teofilius Bertram

George Teofilius Bertram 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).

  • Patent number: 6629599
    Abstract: An apparatus is disclosed for enhancing the mixing of foam precursors in foam-in-bag precursor systems, to thereby enhance the quality of the resulting foam. The apparatus comprises a heated chamber for storing bags containing the precursors in separate compartments, an opening for dispensing the heated bags, and mechanical agitators for externally agitating the bag containing the separated foam-forming precursors to mix the precursors and form foam. Also, a foam cushion packaging precursor is disclosed and comprises such a heated bag.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: October 7, 2003
    Assignee: Sealed Air Corporation
    Inventors: Laurence Burst Sperry, Anthony Orkin Davlin, Kerry Michael McKinley, George Teofilius Bertram
  • Publication number: 20010049921
    Abstract: An apparatus is disclosed for enhancing the mixing of foam precursors in foam-in-bag precursor systems, to thereby enhance the quality of the resulting foam. The apparatus comprises a heated chamber for storing bags containing the precursors in separate compartments, an opening for dispensing the heated bags, and mechanical agitators for externally agitating the bag containing the separated foam-forming precursors to mix the precursors and form foam. Also, a foam cushion packaging precursor is disclosed and comprises such a heated bag.
    Type: Application
    Filed: June 18, 2001
    Publication date: December 13, 2001
    Inventors: Laurence Burst Sperry, Anthony Orkin Davlin, Kerry Michael McKinley, George Teofilius Bertram
  • Patent number: 6272813
    Abstract: A method is disclosed for of enhancing the mixing of foam precursors in foam-in-bag precursor systems, to thereby enhance the quality of the resulting foam. The method comprises externally agitating a bag formed from plastic film material and containing separated foam-forming precursors, to thereby mix the precursors and form foam, and wherein the bag has been warmed to a temperature above ambient temperature prior to the agitation.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: August 14, 2001
    Assignee: Sealed Air Corporation
    Inventors: Laurence Burst Sperry, Anthony Orkin Davlin, Kerry Michael McKinley, George Teofilius Bertram
  • Patent number: 6065636
    Abstract: A convective warmer for flexible plastic bags containing foam precursor chemicals includes an outer housing and an inner enclosure supported within the housing, the inner enclosure having foraminous floor and ceiling plates and foraminous dividers which divide the inner enclosure into vertical compartments for containing vertical stacks of bags. An air space exists between the housing and the inner enclosure, and a forced-air heater is arranged to heat air within the air space and circulate the heated air from the air space, through the foraminous floor plate into the compartments, and out the foraminous ceiling plate back into the air space. A loading door provides access to upper portions of the compartments for loading bags into the warmer, and a dispensing door provides access to lower portions of the compartments for removing a bottommost bag from a stack of bags in the warmer.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: May 23, 2000
    Assignee: Sealed Air Corporation
    Inventors: Laurence Burst Sperry, Lawrence John Pillote, Vincent James Cavalier, Jr., Jesse Scott Drake, John Joseph Corrigan, III, George Teofilius Bertram
  • Patent number: 5996782
    Abstract: A foam in bag cushion precursor is disclosed that is particularly useful for manual operation. The cushion precursor comprises a bag formed of two sheets of flexible plastic film material closed on all four side edges; a frangible seal that defines separate interior cells in a portion of the bag; a first foam precursor composition in one of the interior cells; and a second foam precursor composition in another of the interior cells. One of the cells has a nonfrangible seal wall other than one of the side edges for directing the contents of the cell to mix with the contents of the other cell before the mixed contents enter the remaining portion of said bag.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: December 7, 1999
    Assignee: Sealed Air Corporation
    Inventors: Laurence Burst Sperry, Anthony Orkin Davlin, George Teofilius Bertram, Charles Paul Kannankeril
  • Patent number: 5950875
    Abstract: A dispenser for mixing foam precursor chemicals and dispensing the foamable mixture includes a first module containing shutoff valves and a second module containing a dispensing valve assembly. The dispensing valve assembly includes a valve body of a self-lubricating material and a valving rod which is reciprocatingly retracted in a valve passage of the valve body to uncover orifices which supply the precursor fluids into the valve passage, from which the mixed chemicals are dispensed. The dispensing valve assembly includes a die spring which urges a washer to compress the valve body along its axis to help prevent cold flow of the valve body away from the valving rod. The valving rod is scraped by inner surfaces of the hole in the washer through which the valving rod is retracted and extended. The die spring is preloaded and retained by a load cylinder which is fixed in the bore in the second housing which contains the dispensing valve.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: September 14, 1999
    Assignee: Sealed Air Corporation
    Inventors: William Lee, John Joseph Corrigan, III, George Teofilius Bertram, Robert Neil Fleming
  • Patent number: 5899325
    Abstract: A foam-in-bag packaging system and method of forming the same is provided in which a bag of flexible plastic film material includes superposed panels joined around their peripheral edges to define an enclosed space which is vented to the outside of the bag by venting perforations in the panels, a packet or pouch of barrier material capable of maintaining foam precursor components in a stable, unreacted state for an extended time period is positioned in the enclosed space in the bag adjacent one end thereof and secured from movement therefrom, the packet has first and second compartments therein separated by a first frangible seal extending across the packet and first and second foam precursor components contained respectively in the first and second compartments, the packet has a second frangible seal between one of the compartments and the enclosed space in the bag, the bag being folded along spaced transverse fold lines into a relatively compact form and being folded along a fold line coincident with the fi
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: May 4, 1999
    Assignee: Sealed Air Corporation
    Inventors: George Teofilius Bertram, William Richardson Armstrong, Lawrence John Pillote, William Joseph Mahon, Robert Don Wheeler, Laurence Burst Sperry