Patents by Inventor Zhanmin Tong

Zhanmin Tong 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: 9120649
    Abstract: A system for mounting a head frame to a spreader includes a sheave assembly connecting the head frame to a crane so as to permit the lowering of the head frame, mutually cooperating engagement devices for coupling the head frame and the spreader, an actuator arranged to connect mutually engageable transmission connectors on the head frame and spreader, and a registration device for registering the coupling of the head frame and the spreader. The registration device is arranged to prevent engagement of the transmission connector until the head frame and spreader are coupled.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: September 1, 2015
    Assignee: NSL ENGINEERING PTE LTD.
    Inventors: Ghee Hua Ng, ZhanMin Tong
  • Patent number: 8668235
    Abstract: A flipper assembly for guiding a spreader to engage a container is provided, the flipper assembly comprising a flipper hingedly mounted to the spreader, said flipper moveable between an open and closed position about said mounting; a motor mounted to the spreader distal from said flipper; a spacing assembly located between the motor and the hinged mounting of the flipper, wherein said spacing assembly is capable of transmitting a torque from the motor to the hinged mounting so as to move the flipper between the closed and open positions.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 11, 2014
    Assignee: NSL Engineering Pte Ltd
    Inventors: Robert Arthur Mills, ZhanMin Tong, Ghee Hua Ng
  • Publication number: 20120267452
    Abstract: A system for mounting a head frame to a spreader includes a sheave assembly connecting the head frame to a crane so as to permit the lowering of the head frame, mutually cooperating engagement devices for coupling the head frame and the spreader, an actuator arranged to connect mutually engageable transmission connectors on the head frame and spreader, and a registration device for registering the coupling of the head frame and the spreader. The registration device is arranged to prevent engagement of the transmission connector until the head frame and spreader are coupled.
    Type: Application
    Filed: December 13, 2010
    Publication date: October 25, 2012
    Inventors: Ghee Hua Ng, ZhanMin Tong
  • Patent number: 8226136
    Abstract: A head block assembly (105) comprising a first head block (120) having a first pair of cable engaging sheaves (130); a second head block (125) having a second pair of cable engaging sheaves (135); a separation device (140) mounted intermediate the first and second head blocks (120, 125), for effecting relative transverse movement of said head blocks; wherein the first pair of sheaves (130) are selectively disengagable from the first head block (120), and selectively engagable with the second head block (135).
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 24, 2012
    Assignee: NSL Engineering Pte Ltd.
    Inventors: Robert Arthur Mills, Ghee Hua Ng, ZhanMin Tong
  • Publication number: 20120006779
    Abstract: The invention provides a container crane comprising a frame having a trolley rail along which a trolley travels; said trolley supporting a twin spreader assembly for engaging one or more containers, and; a docking station mounted to said frame; wherein said trolley is arranged to move said twin spreader assembly to the docking station and be placed therein.
    Type: Application
    Filed: March 19, 2010
    Publication date: January 12, 2012
    Applicant: NLS Engineering Pte Ltd
    Inventors: Robert Arthur Mills, ZhanMin Tong, Ghee Hua Ng
  • Publication number: 20110140470
    Abstract: A flipper assembly for guiding a spreader to engage a container, the flipper assembly comprising a flipper (25) hingedly mounted to the spreader, said flipper (25) moveable between an open and closed position about said mounting; a motor (31) mounted to the spreader distal from said flipper (25); a spacing assembly (40) located between the motor (31) and the hinged mounting of the flipper (25), wherein said spacing assembly (40) is capable of transmitting a torque from the motor (31) to the hinged mounting so as to move the flipper (25) between the closed and open positions.
    Type: Application
    Filed: July 1, 2009
    Publication date: June 16, 2011
    Inventors: Robert Arthur Mills, ZhanMin Tong, Ghee Hua Ng
  • Publication number: 20100117388
    Abstract: A head block assembly (105) comprising a first head block (120) having a first pair of cable engaging sheaves (130); a second head block (125) having a second pair of cable engaging sheaves (135); a separation device (140) mounted intermediate the first and second head blocks (120, 125), for effecting relative transverse movement of said head blocks; wherein the first pair of sheaves (130) are selectively disengagable from the first head block (120), and selectively engagable with the second head block (135).
    Type: Application
    Filed: April 30, 2008
    Publication date: May 13, 2010
    Applicant: NSL ENGINEERING PTE LTD
    Inventors: Robert Arthur Mills, Ghee Hua Ng, ZhanMin Tong
  • Publication number: 20100109359
    Abstract: An engagement device (5) comprising a hub (15); a plurality of discrete projection members (20A-20D) mounted to said hub (15) at a respective first ends of said members, said members selectively extendable from said hub (15); a sheave and engagement apparatus (25A-25D) mounted to each projection member (20A-20D), the engagement apparatus for engaging at least one intermodul unit; wherein extension of the projection members (20A-20D) moves the respective sheave and engagement apparatus (25A-25 D) relative to said hub (15).
    Type: Application
    Filed: April 30, 2008
    Publication date: May 6, 2010
    Applicant: NSL ENGINEERING PTE LTD
    Inventors: Robert Arthur Mills, Ghee Hua Ng, ZhanMin Tong
  • Patent number: 7175216
    Abstract: A latch mechanism (7) includes a latch member (8) movable between a release position and a latched position, an operating member (34) movably coupled to the latch member (8), the operating member (34) being movable between a first position and a second position and the latch member (8) being in the release position when the operating member (34) is in the first position and the latch member (8) being in the latched position when the operating member (34) is in the second position. An actuating member (32) movable from a first position to a second position. Movement of the actuating member (32) from the first position to the second position causing the operating member (34) to move from the first position to the second position. A lock member (41) locks the operating member (34) in the second position and the lock member (41) moves from the disengaged position to the engaged position when the operating member (34) is moved from the first position to the second position.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: February 13, 2007
    Assignee: NSL Engineering Pte. Ltd.
    Inventors: Zhanmin Tong, Chin Chye Tan