Patents Assigned to De Poan Pneumatic Corporation
  • Patent number: 6085959
    Abstract: A nailer magazine with blocking device, comprising: a magazine body, having a rear end and an opening running along a longitudinal direction; a gliding body, inserted in the magazine body through the rear end thereof, glidingly movable in the longitudinal direction; and a blocking device. Two grooves are cut into the magazine body along the longitudinal direction, ending in rear entrances and having groove extensions. The gliding body has two lateral projections, which are glidingly movable in the grooves of the magazine body and have blocking elements attached, which are accommodated in the groove extensions. The blocking device is located close to the rear entrances and blocks the blocking elements from leaving the groove extensions through the rear entrances. By locating the blocking elements inside the magazine body, exposure to external impacts is avoided and good looks of the nailer magazine are not impaired.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: July 11, 2000
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: 6036072
    Abstract: A nailer magazine, comprising: a magazine body, having a main axis and a free rear end; a gliding plate, glidingly movable into the magazine body into a mounted position and out of the magazine body through the rear end thereof; a holding plate, attached to the rear end of the magazine body; and a blocking system, attached to the rear end of the gliding plate for holding the gliding plate in the mounted position. The blocking system further comprises: a main body; a gliding element; a spring; and a blocking element. The gliding element is glidingly movable inside the main body in a direction perpendicular to the main axis, having an externally accessible upper end to be pushed manually into the main body. The spring is laid into the main body, pushing the gliding element towards the upper end thereof.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: March 14, 2000
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: 5862969
    Abstract: The present invention relates to a safety trigger for a nailer, which is used to eject nails into a work object through a muzzle, with a gliding bar being pushed upward, when the muzzle is set on the work object, allowing an ejection switch to be operated, the safety trigger comprising: a trigger body, hingedly mounted on the nailer and operating the ejection switch when pulled up; a blocking part, rotatably mounted on a transverse shaft through the trigger body, either pointing towards a peripheral surface around the ejection switch or pointing aside, thus blocking or allowing the operation of the ejection switch by the trigger body; and a spring around the shaft, leaning against the gliding bar and against the blocking part; wherein, when the muzzle of the nailer is set on the work object and the gliding bar is consequently pushed upwards, the blocking part is turned aside, allowing the trigger body to be pulled upwards and operate the ejection switch, and when the muzzle is taken away from the work object,
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: January 26, 1999
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: 5706996
    Abstract: The present invention relates to a gas exhaust system for a stapler for ejecting nails, comprising: a cylinder with a vertically movable piston, driven down by high-pressure gas; a valve body, set on the top side of the cylinder, controlling the inflow of the high-pressure gas into the cylinder; and an exhaust, having a cavity, which is open to the bottom side and accommodates the valve body, and several exhaust holes, which are connected to the cavity, the exhaust having a vertical protection plate at a distance from the exhaust holes, its area covering the exhaust holes, the exhaust further having a protruding protection ring made of soft material on the outer side close to the bottom side; wherein, when the piston moves upwards to the original position, exhaust gas is released through the cavity and the exhaust holes, with the protection plate preventing the exhaust gas from directly hitting any object, and wherein the protection ring minimizes mechanically hitting the outer side of the exhaust and the cyl
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: January 13, 1998
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: 5695108
    Abstract: A magazine system of a stapler, includes a main body, on its top side being provided with a gliding path outside the middle between both sides, the gliding path in turn symmetrically on both sides being provided with several grooves to accommodate U-shaped staples and straight nails of various sizes; a magazine case, surrounding the outside of the main body, leaving a gap on both lateral sides and on the top side; a pushing device, which is movable in the gap between the magazine case and the main body, surrounding the main body from above, and which by a spring pushes the staples or nails towards the ejector of the stapler; a movable part, which is connected to the main body and can be tilted away by a hinge. When using the stapler, the parts interact such that the staples or nails move along the main body and its gliding path and are driven by the driving force of the pushing device towards the ejector.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: December 9, 1997
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: 5692665
    Abstract: This invention relates to a staple confiner in a stapler using all kinds of U-shaped staples of different sizes. It comprises: An upper support, a lower support, the contact surface between the upper and the lower support having a guiding groove, into which the staples inside the magazine can be inserted to be ejected; two confining elements, which are mounted on a hinge on the upper support, to guide all kinds of U-shaped staples of different sizes; and a flexible element, which presses from above on the confining elements, such that the front ends of the confining elements normally press down on the lower part of the guiding groove.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: December 2, 1997
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yun-Chung Lee
  • Patent number: D532668
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: November 28, 2006
    Assignee: De Poan Pneumatic Corporation
    Inventor: Ming Han Wen
  • Patent number: D322204
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: December 10, 1991
    Assignee: De Poan Pneumatic Corporation
    Inventor: Yung J. Lee