Patents by Inventor Robert C. Lam

Robert C. Lam 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).

  • Publication number: 20040033341
    Abstract: A friction material which includes a base material, at least one type of resin material, and at least one type of nanoparticle-sized friction modifying particle is disclosed.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 19, 2004
    Inventors: Robert C. Lam, Yih-Fang Chen, Kenji Maruo
  • Patent number: 6630416
    Abstract: he present invention relates to a fibrous base material having a primary layer and a secondary layer of friction modifying particles on at least one surface of the primary layer for use as an anti-shudder friction material. The fibrous base material is impregnated with a phenolic or phenolic-based resin material to form a friction material.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: October 7, 2003
    Assignee: BorgWarner Inc.
    Inventors: Robert C. Lam, Yih Fang Chen
  • Patent number: 6182804
    Abstract: The present invention relates to a two-ply fibrous base material comprising a more porous primary layer having elastic and oil absorbent characteristics bonded to a less porous secondary layer having high temperature resistance and high strength characteristics. The two-ply fibrous base material, when impregnated with a suitable resin, provides a friction material exhibiting good friction and wear characteristics and is especially useful in high energy end use applications.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: February 6, 2001
    Assignee: BorgWarner, Inc.
    Inventor: Robert C. Lam
  • Patent number: 6130176
    Abstract: The present invention relates to a fibrous base material for use in a non-asbestos, non-metallic friction material comprising less fibrillated aramid fibers, carbon particles, cotton fibers, carbon fibers and at least one filler material, and the non-asbestos, non-metallic friction material produced therefrom. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-base resin material, including, for example, a mixture of a phenolic resin and a silicone resin.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: October 10, 2000
    Assignee: Borg-Warner Inc.
    Inventor: Robert C. Lam
  • Patent number: 6001750
    Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, carbon particles, carbon fibers, phenolic novoloid fibers, and at least one filler material, optionally cotton fibers, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having an extended high speed durability life, good "break-in" characteristics, good heat dissipation characteristics, and good noise or squawk resistance.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: December 14, 1999
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Robert C. Lam
  • Patent number: 5998307
    Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having good "break-in" and durability characteristics.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: December 7, 1999
    Assignee: Borg-Warner Autotive, Inc.
    Inventors: Robert C. Lam, Marc A. Yesnik, Yih-Fang Chen
  • Patent number: 5958507
    Abstract: The present invention relates to a friction material comprising a fibrous base material primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of a mixture of carbon particles and at least one retention aid coated on at least one surface of the primary layer. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having high heat resistance and high friction durability characteristics.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: September 28, 1999
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert C. Lam, Yih-Fang Chen
  • Patent number: 5858883
    Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having good "break-in" and durability characteristics.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: January 12, 1999
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert C. Lam, Marc A. Yesnik, Yih-Fang Chen
  • Patent number: 5856244
    Abstract: The present invention relates to a friction material comprising a fibrous base material primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of a mixture of carbon particles and at least one retention aid coated on at least one surface of the primary layer. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having high heat resistance and high friction durability characteristics.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: January 5, 1999
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert C. Lam, Yih-Fang Chen
  • Patent number: 5775468
    Abstract: The present invention relates to a two-ply fibrous base material comprising a primary layer having elastic and oil absorbent characteristics bonded to a secondary layer having high temperature resistance and high strength characteristics. The two-ply fibrous base material, when impregnated with a suitable resin, provides a friction material exhibiting good friction and wear characteristics and is especially useful in high energy end use applications.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: July 7, 1998
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert C. Lam, Marc A. Yesnik
  • Patent number: 5707905
    Abstract: The present invention relates to a fibrous base material comprising less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a non-asbestos friction material produced therefrom. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-base resin material, including, for example, a mixture of a phenolic resin and a silicone resin.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: January 13, 1998
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Robert C. Lam, Marc A. Yesnik