Patents by Inventor Timothy D. Marvil

Timothy D. Marvil 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).

  • Multilayer fuser rolls having fluoropolymer coating on a compliant baselayer and method of forming
    Patent number: 6596357
    Abstract: A fuser member for fixing toner to a recording medium having a fluoropolymer non-stick topcoat on a compliant silicone rubber baselayer bonded to a metallic insert is provided. The fluoropolymer is adhered to the silicone rubber baselayer using a primer of a blend of silane and a polyamide resin. The primed silicone baselayer is preheated in an infrared oven to remove low molecular weight fractions.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: July 22, 2003
    Assignees: Ames Rubber Corporation, Minco Manufacturing, Inc.
    Inventors: Timothy D. Marvil, Chris F. DelRosario, Stace Moss, John Navarra, Orville R. Raabe, Jr.
  • Apparatus for making multilayer rolls having a thin fluoropolymer top coat
    Patent number: 6481995
    Abstract: A multi-layer roll having a thin fluoropolymer top coat on an elastomeric base layer bonded to a substantially rigid insert is provided. The top coat is formed by placing a thin non-self supporting fluoropolymer sleeve about the insert, or wrapping extruded fluoropolymer film about the insert which is placed in a mold sleeve and positioned in a book mold to hold the membrane in place. Liquid or flowable elastomer is injected into the space between the insert and flexible top coat at a point downstream of where the top layer is held in position between mold elements to prevent wrinkling. The mold is then heated to cure the elastomer.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: November 19, 2002
    Assignee: Ames Rubber Corporation
    Inventors: Chris F. Delrosario, Melvin F. Luke, Timothy D. Marvil
  • Apparatus for making multilayer rolls having a thin fluoropolymer top coat
    Publication number: 20010006268
    Abstract: A multi-layer roll having a thin fluoropolymer top coat on an elastomeric base layer bonded to a substantially rigid insert is provided. The top coat is formed by placing a thin non-self supporting fluoropolymer sleeve and about the insert, or wrapping within extruded fluoropolymer film about the insert which is placed in a mold sleeve and positioned in a book mold to holds the membrane in place. Liquid or flowable elastomer is injected into the space between the insert and flexible top coat at a point downstream of where the top layer is held in position between mold elements to prevent wrinkling. The mold is then heated to cure the elastomer.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 5, 2001
    Inventors: Chris F. Delrosario, Melvin F. Luke, Timothy D. Marvil
  • Method of making multilayer rolls having a thin fluoropolymer top coat
    Patent number: 6168751
    Abstract: A multi-layer roll having a thin fluoropolymer top coat on an elastomeric base layer bonded to a substantially rigid insert is provided. The top coat is formed by placing a thin non-self supporting fluoropolymer sleeve and about the insert, or wrapping within extruded fluoropolymer film about the insert which is placed in a mold sleeve and positioned in a book mold to holds the membrane in place. Liquid or flowable elastomer is injected into the space between the insert and flexible top coat at a point downstream of where the top layer is held in position between mold elements to prevent wrinkling. The mold is then heated to cure the elastomer.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: January 2, 2001
    Assignee: Ames Rubber Corporation
    Inventors: Chris F. Delrosario, Melvin F. Luke, Timothy D. Marvil
  • Method of manufacture of multi-layer roll having compliant PTFE top layer from a fibrillated PTFE membrane
    Patent number: 6141873
    Abstract: A micro-compliant roll having a PTFE top layer on a silicone rubber baselayer bonded to a metallic insert is provided. The roll with PTFE top coat is heated under pressure to a temperature below the PTFE crystalline melting point and quenched to provide a compliant top layer having crystallinity of no more than about 70 percent. The PTFE top layer is applied by adhering a fibrillated PTFE membrane to a silicone rubber baselayer using a primer of a blend of silane and a polyamide resin, or wrapping the PTFE film about an insert with end spiders placed in a sleeve mold and liquid or flowable elastomer is injected into the space between the insert and PTFE membrane.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: November 7, 2000
    Assignee: Ames Rubber Corporation
    Inventors: Chris F. DelRosario, Melvin F. Luke, John Navarra, Daniel Schmitz, Dennis M. Howard, Timothy D. Marvil
  • Multilayer fuser rolls having fluoropolymer coating on a complaint baselayer
    Patent number: 5998034
    Abstract: A fuser member for fixing toner to a recording medium having a fluoropolymer non-stick topcoat on a compliant silicone rubber baselayer bonded to a metallic insert is provided. The fluoropolymer is adhered to the silicone rubber baselayer using a primer of a blend of silane and a polyamide resin. The primed silicone baselayer is preheated in an infrared oven to remove low molecular weight fractions. A primer is applied to the prebaked rubber and completely dried before applying the fluoroelastomer topcoat by spaying.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: December 7, 1999
    Assignees: Ames Rubber Corporation, Minco Manufacturing, Inc.
    Inventors: Timothy D. Marvil, Chris F. Delrosario, John Navarra, Stace Moss, Orville R. Raabe, Jr.