Patents by Inventor Da-Ming Liu

Da-Ming 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: 11773890
    Abstract: A quick connector with a compressive and rotational locking and unlocking mechanism includes a socket, a plug, a rotatable collar and an undulant resilient piece. The socket includes a first connector body and a plug-connection trackway extending obliquely and having an engaging notch at a terminal end thereof. The plug includes a second connector body and a first limiting wall protruding from the plug. The rotatable collar can be assembled on the plug and includes an engaging protrusion and a second limiting wall. When the rotatable collar is rotated, the engaging protrusion enters into the plug-connection trackway and moves to the terminal end of the plug-connection trackway, and the undulant resilient piece abuts against and forces the first and second limiting walls away from each other, such that the engaging protrusion is lodged in the engaging notch to form a locked state.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 3, 2023
    Inventor: Da-Ming Liu
  • Publication number: 20210164510
    Abstract: A quick connector with a compressive and rotational locking and unlocking mechanism includes a socket, a plug, a rotatable collar and an undulant resilient piece. The socket includes a first connector body and a plug-connection trackway extending obliquely and having an engaging notch at a terminal end thereof. The plug includes a second connector body and a first limiting wall protruding from the plug. The rotatable collar can be assembled on the plug and includes an engaging protrusion and a second limiting wall. When the rotatable collar is rotated, the engaging protrusion enters into the plug-connection trackway and moves to the terminal end of the plug-connection trackway, and the undulant resilient piece abuts against and forces the first and second limiting walls away from each other, such that the engaging protrusion is lodged in the engaging notch to form a locked state.
    Type: Application
    Filed: January 20, 2020
    Publication date: June 3, 2021
    Inventor: Da-Ming LIU
  • Patent number: 8633980
    Abstract: The present invention discloses a monitoring apparatus having a detachable display device and a power failure protection, wherein the monitoring apparatus comprises a main body and the display device. When the display device is installed to the main body, a second terminal socket of the display device and a first terminal socket of the main body are inlaid, such that corresponding connecting terminals exposed out of the main body and display device can be electrically conducted with each other. When the display device is detached from the main body, a second switch of the display device and a first switch of the main body are in an opened status respectively, such that the connecting terminals exposed out of the main body and display device cannot receive electric power, however, the main body and display device can still be electrically coupled by a transmission line through corresponding ports thereof.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: January 21, 2014
    Inventor: Da-Ming Liu
  • Publication number: 20130169814
    Abstract: The present invention is to provide a lamp socket type camera which includes an outer housing, a bulb socket connected to the outer housing and capable of being threadedly and electrically connected to an existing lamp socket for receiving electric power from the lamp socket, a power module received in the receiving space and electrically connected to the bulb socket for converting the electric power received from the bulb socket into a required specification, a control module received in the receiving space and connected to the power module, a wireless transmission module received in the receiving space and connected to the control module, and an image capturing element connected to the power module and the control module respectively for capturing image data from outside of the outer housing and transmitting the image data to the control module which will send the image data out via the wireless transmission module wirelessly.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Inventor: Da-Ming LIU
  • Publication number: 20120236138
    Abstract: The present invention discloses a monitoring apparatus having a detachable display device and a power failure protection, wherein the monitoring apparatus comprises a main body and the display device. When the display device is installed to the main body, a second terminal socket of the display device and a first terminal socket of the main body are inlaid, such that corresponding connecting terminals exposed out of the main body and display device can be electrically conducted with each other. When the display device is detached from the main body, a second switch of the display device and a first switch of the main body are in an opened status respectively, such that the connecting terminals exposed out of the main body and display device cannot receive electric power, however, the main body and display device can still be electrically coupled by a transmission line through corresponding ports thereof.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 20, 2012
    Inventor: Da-Ming LIU
  • Publication number: 20110228076
    Abstract: A multifunctional monitoring apparatus includes an operating portion, two flexible tubes and two camera modules. The operating portion includes a handle, a controller, a display screen and two connecting ends. The handle provides a grip for users and facilitates the operation of the monitoring apparatus. The controller is connected to the display screen. Each flexible tube is coupled to each connecting end. Each camera module includes a sleeve, a camera and a circuit board. Each camera is installed in each sleeve and connected to each circuit board. Each circuit board is connected to the controller through a transmission line, such that after the controller has received image data captured by the cameras, the image data can be transmitted to the display screen. Users simply need to place the two camera modules at two desired observing locations to observe and compare the environments of two different locations.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Inventor: Da-Ming Liu
  • Publication number: 20110018992
    Abstract: The present invention is to provide a monitoring device comprising a body, an image capture module and a corrugated pipe having an outer periphery covered by a waterproof layer and two ends connected to the body and image capture module respectively, wherein the image capture module includes a waterproof sleeve having an end away from the corrugated pipe and provided with a lens glass, and a printed circuit board disposed in the sleeve and provided with a camera element and a transmission line passing through the corrugated pipe and extended to connect with a control module of the body, and a signal connection line is connected to the body, so that a user can connect the monitoring device to an electronic device via the signal connection line, and extends the image capture module connected on the corrugated pipe into a zigzag, moist and dark environment for monitoring the condition therein.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Inventor: Da-Ming Liu
  • Patent number: 6644139
    Abstract: A gear structure for a figurine. The structure includes coaxial gears provided on a shaft, each of the coaxial gears is provided with toothed portions at a periphery thereof at suitable positions, with a smooth portion between adjacent toothed portions. At suitable positions facing the periphery of each of the coaxial gears, action gear sets are respectively provided to drive at least one joint on a figurine to move such that by rotating the shaft to different angular positions, at least one of the toothed portions on at least one of the coaxial gears engages the corresponding action gear set so as to actuate the action gear set, thereby enabling the figurine to perform at least one action.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: November 11, 2003
    Inventor: Da-Ming Liu
  • Patent number: 6629871
    Abstract: The present invention is to provide a transmission mechanism for motion toy comprising a transmission box including a transmission gear set having an input meshed with a driven wheel and an output meshed with at least one idler gear; and a leg assembly including at least one pair of legs each having one end pivotably connected to a point in the idler gear distal from its shaft and the other end pivotably connected to one end of a foot. When the driven wheel is driven by a driver element the transmission mechanism can indirectly drive the idler gear and shift the leg horizontally. In such a manner, a motion toy having a plurality of the transmission mechanisms can walk step by step on a planar surface.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: October 7, 2003
    Inventor: Da-Ming Liu
  • Patent number: 6620021
    Abstract: An oscillation device of a motion toy includes a variety of moveable shells configured for receiving the oscillation device, a first transmission box, a first link member, and an end arcuate groove near in one of the shells. One or more cams are provided on the first transmission box. Each cam is coupled to a first shaft of the first transmission box so that during a rotation of the cams as activated by the first shaft, another shell is capable of being pushed by one cam. Hence, the cams and the first link member are operative to move together wherein the first link member moves reciprocally in the arcuate groove, thereby enabling an oscillation by the moving first link member to move the another shell.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: September 16, 2003
    Inventor: Da-Ming Liu
  • Publication number: 20030092353
    Abstract: An oscillation device of a motion toy includes a variety of moveable shells for receiving the oscillation device comprising a first transmission box, a first link member, and an end arcuate groove near in one of the shells. One or more cams are provided on the first transmission box. Each cam is coupled to a first shaft of the first transmission box so that during a rotation of the cams as activated by the first shaft, another shell is capable of being pushed by one cam. Hence, the cams and the first link member are operative to move together wherein the first link member moves reciprocally in the arcuate groove, thereby enabling an oscillation by the moving first link member to move the another shell.
    Type: Application
    Filed: January 9, 2002
    Publication date: May 15, 2003
    Inventor: Da-Ming Liu
  • Publication number: 20030047017
    Abstract: A gear structure for a figurine comprises a plurality of coaxial gears provided on a shaft, each of the coaxial gears is provided with a plurality of toothed portions at a periphery thereof at suitable positions, with a smooth portion between adjacent toothed portions. At suitable positions facing the periphery of each of the coaxial gears, a plurality of action gear sets are respectively provided to drive at least one joint on a figurine to move such that by rotating the shaft to different angular positions, at least one of the toothed portions on at least one of the coaxial gears engages the corresponding action gear set so as to actuate the action gear set, thereby enabling the figurine to perform at least one action.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Inventor: Da-Ming Liu
  • Publication number: 20030006221
    Abstract: A method and apparatus are provided for cutting a substrate using dual laser irradiation. Two lasers are provided, one focussed on a first substrate layer and one on a second layer so as to ablate the said layers. The wavelength and other parameters of the lasers are selected so as to correspond with the layer material to be ablated. The invention is particularly suitable for the singulation of IC packages.
    Type: Application
    Filed: January 17, 2002
    Publication date: January 9, 2003
    Inventors: Minghui Hong, Kaidong Ye, Chengwu An, Da Ming Liu
  • Patent number: 6350170
    Abstract: A swinging structure for a mechanical animal includes a housing and a shell. The housing has disposed therein a shaft and a rod. The shaft has an eccentric wheel and a worm gear mounted thereon. The rod is provided with a worm that engages the worm gear. The outer wall of the shaft is provided with at least one post. These posts are fitted with a T-shaped actuated plate. The end of the actuated plate that is connected to the posts is provided with an elongated groove. The opposite end thereof is provided with a pin. The other side of the elongated groove is provided with a notch that can just accommodate the outer edge of the eccentric wheel. The shell is provided with an actuated rod corresponding to the pin. When the eccentric wheel rotates, due to the notch that moves along the outer edge of the eccentric wheel, the actuated plate can oscillate within the elongated groove thereof, and the pin thereon can actuate the actuated rod to cause the shell to oscillate.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: February 26, 2002
    Inventor: Da-Ming Liu
  • Patent number: 6077164
    Abstract: The invention provides a method of using speech to control a game program of a game machine and a game machine controller for the application of the method, through the method and the game machine controller, the operator can control special function keys of the game program (for example, special actions or the so-called knack of different roles in the game program) by speech or control keys as desired.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: June 20, 2000
    Inventor: Da-Ming Liu
  • Patent number: D392336
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: March 17, 1998
    Inventor: Da-Ming Liu
  • Patent number: D394461
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: May 19, 1998
    Inventor: Da-Ming Liu
  • Patent number: D399268
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: October 6, 1998
    Inventor: Da-Ming Liu
  • Patent number: D411585
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: June 29, 1999
    Inventor: Da-Ming Liu