Patents by Inventor Shin-Leei Hwang

Shin-Leei Hwang 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: 20030146262
    Abstract: The invention disclosed and taught herein relates to a powered fastener driving tool particularly suited for driving straight line fasteners, such as nails or straight line pins into a work piece. A hand held fastener driving tool as particularly described herein, may be used to drive straight line pins, nails and/or staples into a work piece. A magnet is placed within the fastener driving head that magnetically attracts the lead fastener of a soldier course strip of fasteners thereby securing the lead fastener, and trailing strip of fasteners, within the driving tool thereby preventing the possibility of the tool jamming by a fastener not aligning horizontal within the tool and/or its supply magazine.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 7, 2003
    Applicant: Senco Products, Inc.
    Inventors: Shin-Leei Hwang, Donald Carl Ries, John Peter Schloemer
  • Patent number: 6431425
    Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: August 13, 2002
    Assignee: Senco Products, Inc.
    Inventors: Charles J. Moorman, James J. Diersing, Shin-Leei Hwang
  • Patent number: 6382492
    Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: May 7, 2002
    Assignee: Senco Products, Inc.
    Inventors: Charles J. Moorman, James J. Diersing, Shin-Leei Hwang
  • Patent number: 5918788
    Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: July 6, 1999
    Assignee: Senco Products, Inc.
    Inventors: Charles J. Moorman, James J. Diersing, Shin-Leei Hwang
  • Patent number: 5732870
    Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: March 31, 1998
    Assignee: Senco Products, Inc.
    Inventors: Charles J. Moorman, James J. Diersing, Shin-Leei Hwang
  • Patent number: D415002
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: October 12, 1999
    Assignee: Senco Products, Inc.
    Inventors: George K. Rogers, Alan J. Goforth, Shin-Leei Hwang
  • Patent number: D415399
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: October 19, 1999
    Assignee: Senco Products, Inc.
    Inventors: Alan J. Goforth, Shin-Leei Hwang, George K. Rogers
  • Patent number: D416775
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: November 23, 1999
    Assignee: Senco Products, Inc.
    Inventors: Shin-Leei Hwang, George K. Rogers, Alan J. Goforth, Jim F. Warner, Robert J. Croft