Patents by Inventor Huiyao Liu

Huiyao Liu 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: 7416150
    Abstract: A seat belt retractor (10) has an actuator (14) for unlocking and locking the seat belt retractor (10) An inertial sensor (18) detects changes in vehicle acceleration and interacts with the actuator (14) to lock and unlock the seat belt retractor (10). The inertial sensor (18) has one inertial sensor mass, each mass (26, 27, 29, 30, 32, 33) has a wide portion (70) and a narrow portion (72). Preferably each inertial sensor mass (26, 27, 29, 30, 32, 33) has a high density body (31) embedded in the wide portion (70) of the elastomeric material (34). The inertial sensor mass (26, 27, 29, 36, 32, 33) has a greater density than the elastomeric material (34) Moreover, the elastomeric material (34) at least partially surrounds an exterior circumferential surface (38) of the inertial sensor mass (26, 27, 29, 30, 32, 33).
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: August 26, 2008
    Assignee: Key Safety Systems, Inc.
    Inventors: Christopher D. Morgan, Huiyao Liu, Stephan F. Vetter, Kristopher Shaffer, David R. Arnold
  • Publication number: 20080029635
    Abstract: A seat belt retractor (10) has an actuator (14) for unlocking and locking the seat belt retractor (10). An inertial sensor (18) detects changes in vehicle acceleration and interacts with the actuator (14) to lock and unlock the seat belt retractor (10). The inertial sensor (18) has one inertial sensor mass, each mass (26, 27, 29, 30, 32, 33) has a wide portion (70) and a narrow portion (72). Preferably each inertial sensor mass (26, 27, 29, 30, 32, 33) has a high density body (31) embedded in the wide portion (70) of the elastomeric material (34). The inertial sensor mass (26, 27, 29, 36, 32, 33) has a greater density than the elastomeric material (34). Moreover, the elastomeric material (34) at least partially surrounds an exterior circumferential surface (38) of the inertial sensor mass (26, 27, 29, 30, 32, 33).
    Type: Application
    Filed: October 15, 2007
    Publication date: February 7, 2008
    Inventors: Christopher Morgan, Huiyao Liu, Stephan Vetter, Kristopher Schaffer, David Arnold
  • Patent number: 7300013
    Abstract: A seat belt retractor (10) has an actuator (14) for unlocking and locking the seat belt retractor (10). An inertial sensor (18) detects changes in vehicle acceleration and interacts with the actuator (14) to lock and unlock the seat belt retractor (10). The inertial sensor (18) has one inertial sensor mass, each mass (26, 27, 29, 30, 32, 33) has a wide portion (70) and a narrow portion (72). Preferably each inertial sensor mass (26, 27, 29, 30, 32, 33) has a high density body (31) embedded in the wide portion (70) of the elastomeric material (34). The inertial sensor mass (26, 27, 29, 30, 32, 33) has a greater density than the elastomeric material (34). Moreover, the elastomeric material (34) at least partially surrounds an exterior circumferential surface (38) of the inertial sensor mass (26, 27, 29, 30, 32, 33).
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: November 27, 2007
    Assignee: Key Safety Systems, Inc.
    Inventors: Christopher D. Morgan, Huiyao Liu, Stephan F. Vetter, Kristopher Shaffer, David R. Arnold
  • Publication number: 20060180695
    Abstract: A seat belt retractor (10) has an actuator (14) for unlocking and locking the seat belt retractor (10). An inertial sensor (18) detects changes in vehicle acceleration and interacts with the actuator (14) to lock and unlock the seat belt retractor (10). The inertial sensor (18) has one inertial sensor mass, each mass (26, 27, 29, 30, 32, 33) has a wide portion (70) and a narrow portion (72). Preferably each inertial sensor mass (26, 27, 29, 30, 32, 33) has a high density body (31) embedded in the wide portion (70) of the elastomeric material (34). The inertial sensor mass (26, 27, 29, 30, 32, 33) has a greater density than the elastomeric material (34). Moreover, the elastomeric material (34) at least partially surrounds an exterior circumferential surface (38) of the inertial sensor mass (26, 27, 29, 30, 32, 33).
    Type: Application
    Filed: February 16, 2005
    Publication date: August 17, 2006
    Inventors: Christopher Morgan, Huiyao Liu, Stephan Vetter, Kristopher Schaffer, David Arnold
  • Publication number: 20050127660
    Abstract: A D-ring or web guide for a seat belt, comprising: a load-absorbing body formed with a seat belt support surface and an opening thereabove and a friction-reducing, thin, flexible synthetic tape configured to be applied to the seat belt support surface, the tape comprising a layer of low friction material with a layer of adhesive applied to a first side of the synthetic tape, the seat belt passing over a side of the tape opposite the first side of the tape which is in contact with the adhesive.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 16, 2005
    Inventor: Huiyao Liu
  • Patent number: 6029790
    Abstract: A composite release sleeve includes a first cylindrical sleeve of a non-metallic material, and a second cylindrical sleeve of a metallic material. The composite release sleeve enables translation movement of a bearing such as a clutch release bearing, upon a guide element such as an input shaft. Preferably, the first cylindrical sleeve material is a polymer composite having a molded-in second cylindrical sleeve such as a bronze bushing. An integral flange extending outwardly from one end of the first cylindrical sleeve transfers the axial motion of the release sleeve to the clutch assembly. The first cylindrical sleeve further includes an integrally molded cavity which serves as a lubrication reservoir to reduce friction and facilitate slidable movement of the composite release sleeve along the input shaft.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: February 29, 2000
    Assignee: Meritor Heavy Vehicle Systems, LLC
    Inventors: Huiyao Liu, Qinghong K. Gao, Richard Martello