Patents Assigned to Panrex Industrial Co., Ltd.
  • Patent number: 11911884
    Abstract: A nail gun includes a nail gun body unit, and a magazine unit. The nail gun body unit has a drive module, a nail-discharging section, and a firing channel that is formed in the nail-discharging section, and that extends along a firing axis. The nail-discharging section has a base segment, and a guide segment having a guide surface. The base segment has a tip section that has a tip face. The tip face and the guide surface have a height difference in the direction of the firing axis. The magazine unit is connected to the nail gun body unit, and is adapted to accommodate nails. The drive module is adapted for firing the nails that are positioned within the firing channel to move along the firing axis.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: February 27, 2024
    Assignee: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho Ou
  • Patent number: 11806852
    Abstract: A nail gun nozzle mechanism includes a clamping wall, a retaining wall, and a switch unit. The clamping wall defines a firing space. The retaining wall defines a withdrawn space that is in spatial communication with the firing space. The switch unit includes a linkage member, and a bracket member. The bracket member is movable relative to the clamping wall between a firing position, where the bracket member is distal from the clamping wall and is disposed in the withdrawn space, and a non-firing position, where the bracket member is proximate to the clamping wall and blocking at least a portion of the firing space. The linkage member resiliently biases the bracket member toward the non-firing position.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: November 7, 2023
    Assignee: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho Ou
  • Publication number: 20220371170
    Abstract: A nail gun nozzle mechanism includes a clamping wall, a retaining wall, and a switch unit. The clamping wall defines a firing space. The retaining wall defines a withdrawn space that is in spatial communication with the firing space. The switch unit includes a linkage member, and a bracket member. The bracket member is movable relative to the clamping wall between a firing position, where the bracket member is distal from the clamping wall and is disposed in the withdrawn space, and a non-firing position, where the bracket member is proximate to the clamping wall and blocking at least a portion of the firing space. The linkage member resiliently biases the bracket member toward the non-firing position.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 24, 2022
    Applicant: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho OU
  • Publication number: 20220371165
    Abstract: A nail gun includes a nail gun body unit, and a magazine unit. The nail gun body unit has a drive module, a nail-discharging section, and a firing channel that is formed in the nail-discharging section, and that extends along a firing axis. The nail-discharging section has a base segment, and a guide segment having a guide surface. The base segment has a tip section that has a tip face. The tip face and the guide surface have a height difference in the direction of the firing axis. The magazine unit is connected to the nail gun body unit, and is adapted to accommodate nails. The drive module is adapted for firing the nails that are positioned within the firing channel to move along the firing axis.
    Type: Application
    Filed: May 12, 2022
    Publication date: November 24, 2022
    Applicant: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho OU
  • Patent number: 10751864
    Abstract: A switching device for a nail gun includes a trigger, a rod, a resilient member and an actuating member. The trigger includes a pair of slots each including first and second ends. Each of the first and second ends includes a small diameter portion, a large diameter portion and a shoulder portion disposed therebetween. The rod extends through the slots and includes a sliding portion and a positioning end having a diameter larger than that of the sliding portion. The movable rod is movable between an engaging position where the positioning end contacts a wall defining one of the first and second shoulder portions, and a disengaging position where the positioning end is disengaged from the one of the first and second shoulder portions.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 25, 2020
    Assignee: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho Ou
  • Publication number: 20190210204
    Abstract: A switching device for a nail gun includes a trigger, a rod, a resilient member and an actuating member. The trigger includes a pair of slots each including first and second ends. Each of the first and second ends includes a small diameter portion, a large diameter portion and a shoulder portion disposed therebetween. The rod extends through the slots and includes a sliding portion and a positioning end having a diameter larger than that of the sliding portion. The movable rod is movable between an engaging position where the positioning end contacts a wall defining one of the first and second shoulder portions, and a disengaging position where the positioning end is disengaged from the one of the first and second shoulder portions.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 11, 2019
    Applicant: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho OU
  • Publication number: 20090277939
    Abstract: A nail gun hanging device includes: a coupling member having a first axial end portion adapted to be secured to a handle of a nail gun, and an opposite second axial end portion; a hanger having a sleeve portion and a hook portion protruding from the sleeve portion, the sleeve portion being sleeved rotatably and co-axially on the second axial end portion; and a resilient plate disposed between and abutting resiliently against the second axial end portion and the sleeve portion of the hanger, and having a deformable protrusion protruding therefrom to abut resiliently against one of the second axial end portion and the sleeve portion of the hanger.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 12, 2009
    Applicant: PANREX INDUSTRIAL CO., LTD.
    Inventor: Chen-Ho Ou
  • Patent number: 7401719
    Abstract: A staple-driving gun includes a gun body having a hollow housing configured with first and second air chambers separated by a partition, and a staple-discharging member mounted on the housing. A piston unit includes an operating member connected fixedly to a sleeve disposed movably in the first air chamber, and a piston rod disposed movably in the sleeve. The operating member is operable so as to move a valve end portion of the sleeve away from the partition such that compressed air flowing from the first air chamber into the second air chamber via a valve hole in the partition urges the piston rod to move toward the staple-discharging member for staple discharging. A biasing member biases the sleeve to a standby position, where the valve end portion of the sleeve seals the valve hole in the partition.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: July 22, 2008
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Chen-Ho Ou
  • Patent number: 7213735
    Abstract: A staple-driving gun includes a hollow housing configured with first and second air chambers separated by a partition. A piston unit includes an operating member connected fixedly to a sleeve disposed movably in the first air chamber, and a piston rod disposed movably in the sleeve. The operating member is operable so as to move a valve end portion of the sleeve away from the partition. Hence, compressed air flows from the first air chamber into the second air chamber via a valve hole in the partition, and an air-excluding passage constituted by a gap between the valve end portion of the sleeve and an annular flange of a seal washer mounted on the valve end portion of the sleeve, and an air-excluding hole in the valve end portion of the sleeve so as to urge the piston rod to move toward a staple-discharging member.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: May 8, 2007
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Chen-Ho Ou
  • Patent number: 7004368
    Abstract: A nail magazine includes a magazine base and a magazine cover which are coupled slidably to each other to confine a nail channel. The magazine base has a guide groove which is communicated with the nail channel and receives a guide tube which in turn receives a coiled spring. A nail pusher plate is slidably received in the nail channel and attached to the magazine cover. A protrusion of the nail pusher plate extends slidably into the guide tube and connected to the coiled spring so that the nail pusher plate is urged by the coiled spring.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 28, 2006
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Robert Chen
  • Patent number: 6866177
    Abstract: A depth control device includes a linkage connected to and movable with a contact element of a driving tool. A cam follower is connected to the linkage so as to be movable together therewith between first and second longitudinal positions relative to a cam when the contact element is disposed at anon-actuated position. The cam is connected to a driving member which is operable to drive the cam to move in a transverse direction relative to a longitudinal direction, and engages slidingly the cam follower so as to permit movement of the cam follower between first and second longitudinal positions.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: March 15, 2005
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Robert Chen
  • Patent number: 6651863
    Abstract: A cap assembly for a nail driving gun includes a cylindrical body mounted detachably on an open end of a gun housing. The cylindrical body includes a first flange that defines an inner space and that is formed with an external thread engaging threadedly the open end of the housing, and a second flange that is reduced from the first flange, that extends into the housing, and that defines a receiving space in fluid communication with the inner space. A nut is disposed in the inner space. A cover with an air outlet is fastened to the nut through a bolt to cover the inner space. A sealing member is movably and sealingly disposed in the housing for sealing the receiving space during a nail impelling operation.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: November 25, 2003
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Robert Chen
  • Patent number: 6450387
    Abstract: A nail-driving gun includes a gun body that has a handle and a nail-shooting seat. A safety device includes an upper plate, a lower plate, and a safety rod. The upper and lower plates can move synchronously between top and bottom plates of the nail-shooting seat. The safety rod has a front end that is attached fixedly to a rear end portion of the assembly of the upper and lower plates. The upper and lower plates have front ends that project forward from the nail-shooting seat and that can be pressed against a wall so as to move the safety rod to a rear limit position, where the trigger member can be actuated to shoot a nail from the nail-shooting seat.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: September 17, 2002
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Robert Chen
  • Patent number: 6419140
    Abstract: A nail-driving gun includes a safety rod disposed movably on a front end of a barrel, and a trigger member disposed movably on a handle. Upon actuation of the safety rod and the trigger member, the barrel shoots a nail therefrom. When the safety rod is pressed against a wall prior to actuation of the trigger member, the gun can be operated in a single shot mode, in which the safety rod is prevented from returning to its original position due to a positioning pin that is attached movably to the trigger member. When the safety rod is pressed against the wall after actuation of the trigger member, the gun can be operated in a continuous shooting mode. The safety rod and the trigger member are actuated by one hand that holds the handle.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: July 16, 2002
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Robert Chen
  • Patent number: 6357647
    Abstract: A nail-driving gun includes a safety rod disposed movably on a front end of a barrel, and a trigger member disposed movably on a handle. Upon actuation of the safety rod and the trigger member, the barrel shoots a nail therefrom. When the safety rod is pressed against a wall prior to actuation of the trigger member, the gun can be operated in a single shot mode, in which the safety rod is prevented from returning to its original position due to a hook member that is attached to the trigger member. When the safety rod is pressed against the wall after actuation of the trigger member, the gun can be operated in a continuous shooting mode. The safety rod and the trigger member can be actuated by one hand that holds the handle.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: March 19, 2002
    Assignee: Panrex Industrial Co., Ltd.
    Inventor: Chen-He Ou