Patents by Inventor Mu-Yu Chen

Mu-Yu Chen 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: 20070267458
    Abstract: A pneumatic nail gun includes a body, a firing pin, a trigger, a magazine, a connector and a firing chamber. The body includes a cylinder and a handle extended from the cylinder. The firing pin is positioned in the cylinder. The trigger is operable on the body for actuating the firing pin. The magazine is connected to the body and includes an intake portion and first and second valves operable in the intake portion for adjusting a rate at which pressurized air goes into the magazine. The connector includes a first section connected to the cylinder for receiving the firing pin and a second section connected to the magazine for receiving nails. The firing chamber is attached to the second section of the connector for receiving the nails.
    Type: Application
    Filed: May 22, 2006
    Publication date: November 22, 2007
    Inventor: Mu-Yu Chen
  • Patent number: 7152774
    Abstract: A nail gun includes a shell, a hammering device for firing nails, an energizing device for providing energy to the hammering device, an actuating device for actuating the energizing device and a lever for disabling the actuating device after a nail is fired. The actuating device can be reset in order to allow the firing of one more nail.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: December 26, 2006
    Assignee: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Publication number: 20060144892
    Abstract: A nail gun includes a shell, a hammering device for firing nails, an energizing device for providing energy to the hammering device, an actuating device for actuating the energizing device and a lever for disabling the actuating device after a nail is fired. The actuating device can be reset in order to allow the firing of one more nail.
    Type: Application
    Filed: January 3, 2005
    Publication date: July 6, 2006
    Applicant: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Patent number: 6991103
    Abstract: A toolbox including two shells pivotally connected with each other and at least one tool holder pivotally connected with one of the shells for holding at least one tool. The at least one tool holder includes a shaft mounted on one of the shells and at least one socket mounted on the shaft for receiving a tool.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: January 31, 2006
    Assignee: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Patent number: 6974067
    Abstract: A nail stapler magazine includes a storing device, a feeding device, a gate and a distinguisher. The storing device is for storing nails and first and second types of staples each including first and second legs. The feeding device is for feeding the nails and the first and second types of staples from the storing device. The nails and the first and second types of staples are fed through the gate. The distinguisher is for distinguishing the nails and the first and second types of staples from one another and ensuring that only one of the nails and the first and second types of staples is fed at a time.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: December 13, 2005
    Inventor: Mu-Yu Chen
  • Patent number: 6938813
    Abstract: A nail stapler includes a magazine, a nozzle and a hammering device. The magazine stores nails. The nozzle prevents jamming via allowing only a leading one of the nails to the hammering device. The hammering device is capable of hammering the leading one of the nails more than once until it hammers the leading nail completely into an object.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: September 6, 2005
    Assignee: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Publication number: 20050045509
    Abstract: A toolbox including two shells pivotally connected with each other and at least one tool holder pivotally connected with one of the shells for holding at least one tool. The at least one tool holder includes a shaft mounted on one of the shells and at least one socket mounted on the shaft for receiving a tool.
    Type: Application
    Filed: August 14, 2003
    Publication date: March 3, 2005
    Inventor: Mu-Yu Chen
  • Patent number: 6860416
    Abstract: A single-shot nail stapler includes a valve and a valve-opening rod for pushing the valve open. A major trigger includes two side members each with an upper portion pivotally attached to a portion of the single-shot nail stapler and a lower portion defining a substantially horizontal slit and a substantially vertical slot with an upper end and a lower end. A slide includes two side members each including a fin formed thereon and defining an inclined slot with an upper left end and a lower right end. The fins are movable in the substantially horizontal slits of the major trigger. A secondary trigger includes an upper portion, a lower portion and an aperture defined in the lower portion of the secondary trigger. A pin is fit in the aperture of the secondary trigger and movable in the inclined slots of the slide and the substantially vertical slots of the major trigger. Two springs are each compressed between the major trigger and each of the slide members of the slide.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: March 1, 2005
    Assignee: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Patent number: 6796477
    Abstract: A nail-hammering apparatus includes a hammer, a first solenoid, a second solenoid and a control device. The hammer can hammer a nail into a workpiece. The first solenoid can be turned on so as to drive the hammer. The second solenoid can be turned on in order to drive the hammer after the first solenoid. The spring tends to bias the hammer to its original position when the second solenoid is turned off. If the nail has not entirely enters the workpiece, the control device turns on the second solenoid so as to drive the hammer one more time.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: September 28, 2004
    Assignee: Aplus Pneumatic Corp.
    Inventor: Mu-Yu Chen
  • Publication number: 20040159695
    Abstract: A nail stapler includes a magazine for containing nails and a gun for shooting the nails from the magazine. The gun includes a shell, a solenoid put in the shell, a mandrel put in the shell to be attracted from an original position to a punching position by means of the solenoid, a hammer secured to the mandrel and inserted through the solenoid, a spring for moving the mandrel to the original position from the punching position against the solenoid and a security device put in the shell for slowing down the mandrel when the mandrel is moved to the original position from the punching position by means of the spring.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Inventors: Chu-Kuo Wang, Mu-Yu Chen
  • Patent number: 6742691
    Abstract: A nail stapler includes a gun and a magazine for receiving and supplying staple nails to the gun. The gun includes a shell, a solenoid received in the shell, a puncher received in the shell for movement from an original position to a punching position due to attraction by the solenoid, a pin secured to the puncher and inserted through the solenoid, a spring compressed between a portion of the solenoid and a portion of the puncher, and a security device received in the shell for buffering the puncher when the puncher is pushed from the punching position to the original position by the spring. The security device includes an elastic end for contact with the puncher. The nail elastic end of the security device includes a plurality of elastic elements. The puncher defines a cavity with a wall for contact with the elastic elements. The shell includes two halves each including a retainer formed on an internal face. The security device defines a groove for receiving the retainers of the halves of the shell.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: June 1, 2004
    Inventor: Mu-Yu Chen
  • Publication number: 20040084503
    Abstract: A nail-hammering apparatus includes a hammer, a first solenoid, a second solenoid and a control device. The hammer can hammer a nail into a workpiece. The first solenoid can be turned on so as to drive the hammer. The second solenoid can be turned on in order to drive the hammer after the first solenoid. The spring tends to bias the hammer to its original position when the second solenoid is turned off. If the nail has not entirely enters the workpiece, the control device turns on the second solenoid so as to drive the hammer one more time.
    Type: Application
    Filed: March 18, 2003
    Publication date: May 6, 2004
    Inventor: Mu-Yu Chen
  • Patent number: 6715657
    Abstract: A nail stapler magazine includes a storage device for storing nails and staples, a feeder device for feeding the nails and the staples in the storage device, a gate device through which the nails and the staples can be fed, and a distinguisher device for distinguishing the nails from the staples and ensuring that that only one of the nails and staples is fed at a time.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 6, 2004
    Inventor: Mu-Yu Chen
  • Publication number: 20040035905
    Abstract: A nail stapler includes a gun and a magazine for receiving and supplying staple nails to the gun. The gun includes a shell, a solenoid received in the shell, a puncher received in the shell for movement from an original position to a punching position due to attraction by the solenoid, a pin secured to the puncher and inserted through the solenoid, a spring compressed between a portion of the solenoid and a portion of the puncher, a security device received in the shell for buffering the puncher when the puncher is pushed from the punching position to the original position by the spring. The security device includes an elastic end for contact with the puncher. The nail elastic end of the security device includes a plurality of elastic elements. The puncher defines a cavity with a wall for contact with the elastic elements. The shell includes two halves each including a retainer formed on an internal face. The security device defines a groove for receiving the retainers of the halves of the shell.
    Type: Application
    Filed: August 23, 2002
    Publication date: February 26, 2004
    Inventor: Mu-Yu Chen
  • Patent number: 6644530
    Abstract: A nail stapler magazine includes a first shell, an outlet element, a second shell, a plurality of positioning strips and a pusher. The first shell includes a first end, a second end, a deep groove defined therein for receiving nails each including a head, and a plurality of shallow grooves defined therein. When the nails are received in the magazine, their heads are received in one of the shallow grooves. The outlet element is formed at the first end of the first shell. The outlet element defines a slot through which the nails can be sent from the first shell into the outlet element and an outlet through which the nails can be ejected from the outlet element. The second shell is movable on the first shell. The second shell includes a first end, a second end and a plurality of grooves defined therein. Each of the positioning strips is received in one of the grooves defined in the second shell. Each of the positioning strips includes a protrusion for pressing the nails against the first shell.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 11, 2003
    Inventor: Mu-Yu Chen
  • Publication number: 20030201300
    Abstract: A nail stapler magazine includes a storage device for storing nails and staples, a feeder device for feeding the nails and the staples in the storage device, a gate device through which the nails and the staples can be fed, and a distinguisher device for distinguishing the nails from the staples and ensuring that that only one of the nails and staples is fed at a time. The storage device includes first and second shells engaged with each other, thus defining a space. The shells both define a plurality of grooves for guiding the heads of the nails. The first shell defines a channel for receiving a terminal section of each staple. The space defined between the shells receives another terminal section of each staple. The feeder device includes a feeder for feeding the nails and the staples. The feeder device includes at least one spring for biasing the feeder. The feeder device includes at least one joint for connecting the at least one spring with the feeder.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 30, 2003
    Inventor: Mu-Yu Chen
  • Publication number: 20030201299
    Abstract: A nail stapler magazine includes a storing device, a feeding device, a gate and a distinguisher. The storing device is for storing nails and first and second types of staples each including first and second legs. The feeding device is for feeding the nails and the first and second types of staples from the storing device. The nails and the first and second types of staples are fed through the gate. The distinguisher is for distinguishing the nails and the first and second types of staples from one another and ensuring that only one of the nails and the first and second types of staples is fed at a time.
    Type: Application
    Filed: May 8, 2003
    Publication date: October 30, 2003
    Inventor: Mu-Yu Chen
  • Publication number: 20030094477
    Abstract: A nail stapler magazine includes a first shell, an outlet element, a second shell, a plurality of positioning strips and a pusher. The first shell includes a first end, a second end, a deep groove defined therein for receiving nails each including a head, and a plurality of shallow grooves defined therein. When the nails are received in the magazine, their heads are received in one of the shallow grooves. The outlet element is formed at the first end of the first shell. The outlet element defines a slot through which the nails can be sent from the first shell into the outlet element and an outlet through which the nails can be ejected from the outlet element. The second shell is movable on the first shell. The second shell includes a first end, a second end and a plurality of grooves defined therein. Each of the positioning strips is received in one of the grooves defined in the second shell. Each of the positioning strips includes a protrusion for pressing the nails against the first shell.
    Type: Application
    Filed: October 9, 2002
    Publication date: May 22, 2003
    Inventor: Mu-Yu Chen
  • Patent number: 6213372
    Abstract: A nailing machine comprises a housing containing a nail hitting mechanism for hitting nails, a contact arm for pressing against a work, a trigger lever having an end pivotally connected to the housing, a contact lever having a lower end pivotally connected to the trigger lever and an upper end actuatable by the contact arm when the contact arm is pressed against the work, and a pressing member comprising a first end pivotally connected to the trigger lever and a second end. The pressing member further comprises an arcuate portion on a side thereof. When the contact arm is firstly pressed against the work and the trigger lever is pulled subsequently to activate the nail hitting mechanism via transmission by the contact lever, the arcuate portion of the pressing member bears against the housing such that the contact lever is immobile when the contact arm is disengaged from the work and when the trigger lever is kept pulled after hitting the nail to the work. The nailing machine is thus in a one-shot mode.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: April 10, 2001
    Inventor: Mu-Yu Chen