Patents by Inventor Yun-Zhao Liu

Yun-Zhao 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: 8274257
    Abstract: This invention relates to a portable charging equipment in which a socket is provided on side edge of a backup battery and a plug is correspondingly provided on a charger device. A recessed arc portion formed on the bottom surface of the charger device is to abut closely against the peripheral outer edge of the backup battery. A boost unit provided in the charger device is electrically connected to the plug, and a lead wire connected to the boost unit has an output terminal provided on the other end. A tightening strap body having hook and loop structure is attached to the charger device. The backup battery and the charger device can be inseparably affixed together by the fastening action of the tightening strap body.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: September 25, 2012
    Inventor: Yun-Zhao Liu
  • Patent number: 8148940
    Abstract: The present invention relates to a multi-functional vehicle charger and the charging process of the same. The vehicle charger includes an enclosure defining the vehicle charger. The enclosure includes a USB port disposed thereon, a power plug corresponding to a vehicle power outlet on one end, and a wire connected with a power terminal at the other end. The power terminal, the USB port, and the power plug are connected to a charge monitor circuit. Thus the vehicle charger can be connected with various electrical appliances for charging by insertion of the power terminal on the wire into a socket of a Li-ion battery and by a connecting wire that connects the USB port to electric appliances with USB functionality. Thereby, power is supplied by various output ends when the vehicle charger is inserted into a power outlet in vehicles.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: April 3, 2012
    Inventor: Yun-Zhao Liu
  • Patent number: 8104916
    Abstract: This invention provides a flashlight in which locating slots for constraining and fixing conductive strips are provided in a plastic housing. The conductive strips are connected with a conductive heat dissipation element of a light source body and a conductive seat at the tail portion of the plastic housing, and are turned on by the conductive seat and a smart controller such that variation of the light emitted from the light source body is controlled by the smart controller. In addition, the conductive heat dissipation element of the light source body is assembled with the front cover having heat dissipation effect so that the heat dissipation of the light source body is facilitated and hence the lifetime of the light source body is extended.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: January 31, 2012
    Inventor: Yun-Zhao Liu
  • Patent number: 8038330
    Abstract: A movable multi-directional light stand is revealed. The movable multi-directional light stand includes a retractable top support rod that can be received into and connected with a hollow middle support rod. The top support rod is disposed with a mounting slot on a wall, along an axial direction thereof. A sleeve with external threads is disposed around the top of the top support rod and is arranged with a guiding slot corresponding to the mounting slot of the top support rod. A retractable light rod is pivoted to the wall of the top support rod that is disposed with the mounting slot. The retractable light rod is formed by a hollow outer tube and an inner tube that slides in the outer tube and having a hook. The light stand further includes an adjustment nut with threads engaging corresponding external threads of the sleeve so that the adjustment nut can support the outer tube, locate the retractable light rod in the mounting slot and adjust the height of the light.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 18, 2011
    Inventor: Yun-Zhao Liu
  • Publication number: 20110182059
    Abstract: A diving torch that floats over the water is revealed. The diving torch includes a waterproof washer and a light transmitting lens, both locked and located on a front cover thereof. A front end of a barrel is enlarged outward to form a receiving space for loading a light cup and the receiving space is threaded with the front cover by a threaded portion. A waterproof washer is disposed around the threaded portion. Moreover, the bottom of the barrel is threaded and connected with a back cover by a threaded portion disposed with a waterproof washer. A switch set with a waterproof washer on the bottom is mounted in the back cover. Thereby not only people working on the water can pick up the diving torch quickly, people in the water and in distress can also use the diving torch asking for help.
    Type: Application
    Filed: January 25, 2010
    Publication date: July 28, 2011
    Inventor: Yun-Zhao Liu
  • Publication number: 20110156646
    Abstract: This invention relates to a portable charging equipment in which a socket is provided on side edge of a backup battery and a plug is correspondingly provided on a charger device. A recessed arc portion formed on the bottom surface of the charger device is to abut closely against the peripheral outer edge of the backup battery. A boost unit provided in the charger device is electrically connected to the plug, and a lead wire connected to the boost unit has an output terminal provided on the other end. A tightening strap body having hook and loop structure is attached to the charger device. The backup battery and the charger device can be inseparably affixed together by the fastening action of the tightening strap body.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Inventor: YUN-ZHAO LIU
  • Publication number: 20110085324
    Abstract: This invention provides a flashlight in which locating slots for constraining and fixing conductive strips are provided in a plastic housing. The conductive strips are connected with a conductive heat dissipation element of a light source body and a conductive seat at the tail portion of the plastic housing, and are turned on by the conductive seat and a smart controller such that variation of the light emitted from the light source body is controlled by the smart controller. In addition, the conductive heat dissipation element of the light source body is assembled with the front cover having heat dissipation effect so that the heat dissipation of the light source body is facilitated and hence the lifetime of the light source body is extended.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 14, 2011
    Inventor: Yun-Zhao Liu
  • Publication number: 20110068741
    Abstract: A flashlight battery charger is revealed. The flashlight battery charger mainly includes a rechargeable battery with a socket mounted in a flashlight and a charger. The rechargeable battery is charged by the socket connected with a city power system. After completing charging, the rechargeable battery is connected with various electronic products by the charger plugged into the socket so as to charge the electronic products. Thus the power in the rechargeable battery is not only provided to the flashlight for but is also provided to charge the electronic products. Moreover, the flashlight battery charger is portable so that it can be directly used to charge the electronic products to the maximum capacity and the inconvenience caused by no power source for electronic products is avoided. Therefore, the flashlight battery charger has more practical values.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Inventor: Yun-Zhao Liu
  • Publication number: 20100328962
    Abstract: A movable multi-directional light stand is revealed. The movable multi-directional light stand includes a retractable top support rod that can be received into and connected with a hollow middle support rod. The top support rod is disposed with a mounting slot on a wall, along an axial direction thereof. A sleeve with external threads is disposed around the top of the top support rod and is arranged with a guiding slot corresponding to the mounting slot of the top support rod. A retractable light rod is pivoted to the wall of the top support rod that is disposed with the mounting slot. The retractable light rod is formed by a hollow outer tube and an inner tube that slides in the outer tube and having a hook. The light stand further includes an adjustment nut with threads engaging corresponding external threads of the sleeve so that the adjustment nut can support the outer tube, locate the retractable light rod in the mounting slot and adjust the height of the light.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: 7806555
    Abstract: A flashlight includes a body, a battery pack held in the body, a rear cover joined on the body, and a push-button switch in the rear cover; the push-button switch includes positive and negative electrodes, and a button part facing a through hole of the rear cover; the battery pack includes a casing, a battery set in the casing, and a socket facing a through hole of the casing; the battery pack includes positive and negative electrodes, which are connected to positive and negative electrodes of the socket; a first elastic component is positioned between and connected to the positive electrodes of the push-button switch and the battery pack; a second elastic component is positioned between and connected to the negative electrodes of the switch and the battery pack; the battery pack can be charged through a charger plugged in the socket while it is still held in the body.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: October 5, 2010
    Inventor: Yun-Zhao Liu
  • Publication number: 20100232146
    Abstract: A mobile lamp includes a body, and a waterproof lamp cover; the body has a shining component on a front end, and a joining member is joined on an outer side of the front end of the body; brightness of the lamp can be adjusted; the waterproof lamp cover is threadedly joined on the joining member on the front end of the body; the waterproof lamp cover is pervious to light, hollow and filled with air, and it has a light reflecting screen on a front end thereof; the mobile lamp can float on water owing to the waterproof lamp cover; therefore, the lamp can help fishers attract fishes, and it can flash on and off repeatedly to help a rescue team to locate a person having fallen into water besides being used on land.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Inventor: Yun-Zhao Liu
  • Publication number: 20100232145
    Abstract: A portable light with an integral-designed light source body is revealed. A connection member is disposed on an edge of a front end of a main body while a plurality of light source bodies for different conditions corresponding to the main body is provided. The light source body includes a connection base with a connection member corresponding to the connection member of the main body. A light source is disposed in the connection base and is connected with a conductive part. A lamp shield is covered on the connection base while a reflector corresponding to the light source is also arranged thereon. Thereby, the main body and the light source body are assembled and located with each other by the connection members. The light source body can be changed according to users' needs. Thus the practicality and convenience of the light are improved due to diversity in applications.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Inventor: Yun-Zhao Liu
  • Publication number: 20100225269
    Abstract: The present invention relates to a multi-functional vehicle charger and the charging process of the same. The vehicle charger includes a power plug corresponding to a vehicle power outlet on one end, a power terminal connected with the vehicle charger by a wire and a USB port. The power terminal is connected with a charge monitor circuit for Li-ion batteries in the vehicle charger and the USB port is connected with the power plug. Thus the vehicle charger can be connected with various electrical appliances for charging not only by insertion of the power terminal on the wire into a socket of a Li-ion battery. But also by a connecting wire that connects the USB port to the electric appliances with USB functionality and having charge monitor circuit as well as a Li-ion batteries, the vehicle charger supplies power to the electrical appliances. Thereby, power is supplied by various output ends when the vehicle charger is inserted into a power outlet in vehicles.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: 7785723
    Abstract: A battery device includes a battery set, and a casing; the casing includes a right covering part and a left covering part, which are joined together to provide a holding room for the battery set; the battery set include at least two batteries, and are held in the casing with positive and negative poles thereof being exposed through front and tail ends of the casing respectively; a socket is held in the casing, and electrically connected with the positive and the negative poles of the battery set; thus, after a plug of a charger is inserted in the socket, the single-part batteries together will be charged through the charger without the battery device being located on the charger.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: August 31, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: 7758205
    Abstract: A flashlight includes a lamp support, an electric light-generating mechanism in the lamp support, a covering member around the lamp support, a barrel body joined on the covering member, and an adjustment member; the adjustment member is threadedly joined in the lamp support, and can be turned to adjust a position of a focal point of light emitted from a light source of the light-generating mechanism; front and rear heat-conducting components are positioned on front and rear ends of the light-generating mechanism respectively, and they contact the lamp support and the barrel body respectively; heat produced from functioning of the light-generating mechanism will be conducted away from the front heat-conducting component to the lamp support and from the rear heat-conducting component to the barrel body, and the light source is prevented from being damaged by the heat produced from it continuing shining for an extended length of time.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: July 20, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: D619743
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 13, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: D620162
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 20, 2010
    Inventor: Yun-Zhao Liu
  • Patent number: D647232
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 18, 2011
    Assignee: Guangdong Jetfast Portable Lighting Co., Ltd.
    Inventor: Yun-Zhao Liu
  • Patent number: D664498
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: July 31, 2012
    Assignee: Guangdong Jetfast Portable Lighting Co., Ltd.
    Inventor: Yun-Zhao Liu
  • Patent number: D676379
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 19, 2013
    Assignee: Guangdong Jetfast Portable Lighting Co., Ltd.
    Inventor: Yun-Zhao Liu