Patents by Inventor Tak Chi Sher

Tak Chi Sher 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: 6533576
    Abstract: A lighter. The lighter includes a container for storing a combustible fuel and a source of ignition. The source of ignition is responsive to the manual manipulation of an actuating member and a member resisting the operation of the actuation member so that the source of ignition is not activated in response to forces less than approximatey 3.5 kgf.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: March 18, 2003
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Publication number: 20030013058
    Abstract: A lighter includes a housing and ignition means for the lighter. The ignition means includes a member manually moveable with respect to the housing. A lock member is provided between the manually moveable member and the housing. Release means manually operable to move the lock member from a first position in engagement with both the housing and the manually moveable member to a second position wherein the lock member is released from the housing to allow the manually moveable member to move relative to the housing to allow or cause ignition of the lighter is provided. The release means require manual movement to release the lock in a direction different to both the direction of movement of the manually moveable member to allow or cause ignition, and the direction of movement of the lock member into or out of engagement with the housing.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 16, 2003
    Inventor: Tak Chi Sher
  • Publication number: 20020197577
    Abstract: A lighter. The lighter includes a container for storing a combustible fuel and a source of ignition. The source of ignition is responsive to the manual manipulation of an actuating member and a member resisting the operation of the actuation member so that the source of ignition is not activated in response to forces less than approximately 3.5 kgf.
    Type: Application
    Filed: July 30, 2002
    Publication date: December 26, 2002
    Applicant: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: 6478575
    Abstract: The invention comprises a lighter which has a housing, a gas reservoir in the housing, and ignition means. The ignition means include a first manually moveable member and a second independently operable manually moveable member such that when the first member is operated gas is supplied from the gas reservoir and when the second member is operated the ignition means operates, so that both the first manually moveable member and the second manually moveable member must be operated to cause the lighter to ignite. The two manually moveable members may include a cap to the housing and a button moveable in a channel in the cap.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: November 12, 2002
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Publication number: 20020110768
    Abstract: The invention comprises a lighter which has a housing, a gas reservoir in the housing, and ignition means. The ignition means include a first manually moveable member and a second independently operable manually moveable member such that when the first member is operated gas is supplied from the gas reservoir and when the second member is operated the ignition means operates, so that both the first manually moveable member and the second manually moveable member must be operated to cause the lighter to ignite. The two manually moveable members may include a cap to the housing and a button moveable in a channel in the cap.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 15, 2002
    Inventor: Tak Chi Sher
  • Patent number: 6431853
    Abstract: The invention comprises a lighter such as a cigarette lighter including a housing. Ignition means are provided for the lighter. The ignition means include a member manually movable with respect to the housing. A lock between the manually moveable member and the housing, and release means are provided which are manually operable to release the lock to allow the manually moveable member to move relative to the housing to allow or cause ignition of the lighter. The release means require manual movement to release the lock in a direction different to the direction of movement of the manually moveable member to allow or cause ignition.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: August 13, 2002
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Publication number: 20020106600
    Abstract: The invention comprises a lighter such as a cigarette lighter including a housing. Ignition means are provided for the lighter. The ignition means include a member manually movable with respect to the housing. A lock between the manually moveable member and the housing, and release means are provided which are manually operable to release the lock to allow the manually moveable member to move relative to the housing to allow or cause ignition of the lighter. The release means require manual movement to release the lock in a direction different to the direction of movement of the manually moveable member to allow or cause ignition.
    Type: Application
    Filed: February 6, 2001
    Publication date: August 8, 2002
    Inventor: Tak Chi Sher
  • Patent number: 6386861
    Abstract: A safety lighter having a safety switch which prevents ignition of the lighter by automatically blocking the activation trigger from returning to a pre-ignition position and in turn prevents the piezoelectric actuator from returning to a pre-ignition position after the activation trigger has been urged to an ignition position. The safety switch has a slanted member having an engagement surface and a sliding surface, and a U-shaped sliding slot member having a resilient pane, a guide arm, a blocking surface, and a safety trigger. The safety switch allows ignition of the lighter only after the safety trigger is urged upward such that the activation trigger and the piezoelectric actuator return to their pre-ignition positions.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: May 14, 2002
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: 6352429
    Abstract: A safety lighter with improved rotary wheel hoods surrounding the striker wheel. The hoods must be urged downwardly and simultaneously rotated to engage and rotate the striker wheel. By varying the arrangement of the annular inner and outer surfaces of the hoods having either smooth surfaces or protuberances thereon with the annular unrecessed lateral portions of the striker wheel having either smooth surfaces or protuberances thereon, a multiplicity of embodiments may be achieved. Each embodiment requires a varying level of downward pressure and rotational forces to cause the lighter to spark and ignite.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: March 5, 2002
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: 6315550
    Abstract: A lighter safety system which in a first “safety on” position prevents the ignition of the lighter by not releasing gas when the trigger is pulled. The simultaneous downward depression of a safety switch with the operator's thumb and the rearward depression of the trigger by the operator's fingers (of the same hand) allows the lighter to ignite. A safety gas lever in the housing is pivotable when a positioning pillar in the housing is depressed. A yoke on one end of switch lever engages the neck of a gas nozzle. Depression of the switch lifts the nozzle to release gas. The simultaneous depression of the trigger activates the ignition system; thereby igniting a flame.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: November 13, 2001
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: 6086359
    Abstract: A lighter safety system which in a first "safety on" position prevents the ignition of the lighter by blocking the depression of the lighter trigger. The simultaneous forward engagement of a safety pin with the operator's thumb and the rearward depression of the trigger by the operator's fingers (of the same hand) allows the lighter to ignite. The safety pin is pivotable about a positioning pillar in the housing. A hook on one end of switch engages on slanted slot in the trigger to prevent depression of the trigger until the pivotable switch pin is urged forward.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: July 11, 2000
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: 5846069
    Abstract: A lighter including a lighter body containing fuel which is released through a nozzle. An actuating lever is placed on a mounting frame which is disposed on top of the lighter body. Activating the actuating lever causes fuel to flow through the nozzle. A striker rotatably mounted on the mounting frame is engaged to a piece of flint wherein rotating the striker against the piece of flint causes a spark to be generated, which ignites the fuel and causes a flame. A rotatable wheel hood having a safety position and an activation position is placed over the striker whereby placing the rotatable wheel hood in the safety position prevents the user from rotating the striker and causing a spark to be generated. Placing the wheel hood in the activation position allows the user to rotate the striker to generate a spark.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: December 8, 1998
    Assignees: Polycity Industrial Limited, Tak Fi International (Holdings) Limited
    Inventor: Tak Chi Sher
  • Patent number: 5788476
    Abstract: A gas lighter uses the depression of an actuation lever to trigger a piezoelectric generator to generate a current and raise a gas lever to allow the flow of gas through a nozzle. The current is conducted to the nozzle to ignite the gas. A slider, movable towards and away from the body of the lighter is engaged with the actuating lever to not allow the actuating lever to be depressed when the slider is away from the body of the lighter. The engagement is by means of a pair of resilient fingers of the slider and pair of sliding surfaces on the actuating lever.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: August 4, 1998
    Assignees: Polycity Industrial Ltd, Tak Fi Int'l. (Holdings) Ltd.
    Inventor: Tak Chi Sher
  • Patent number: 5769625
    Abstract: A safety lighter with an improved striker wheel and striker wheel mounting frame. The lighter has an igniter having a striker wheel which rotates about an axis in response to force applied to the wheel by a user's finger. The annular recessed center portion of the striker wheel's outer annular surface has protuberances formed thereon (or grooves formed therein), while the annular unrecessed lateral portions of the striker wheel's outer annular surface are smooth. Further, the striker wheel is mounted to the lighter in slots. The striker wheel is pressed from a first position having insufficient spring force to cause the lighter flint to spark when the striker wheel is rotated into a second position having sufficient spring force to cause the lighter flint to spark when the striker wheel is rotated.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 23, 1998
    Assignees: Polycity Industrial Limited, Tak Fi International (Holdings) Limited
    Inventor: Tak Chi Sher
  • Patent number: 5704776
    Abstract: A safety lighter is disclosed. The lighter comprises a lighter body, a nozzle, a mounting frame disposed on the lighter body, and an actuating lever which is reciprocatingly mounted on the mounting frame between forward and rearward positions. The front end of the lever grips the nozzle and moves it from its lower position, where gas cannot escape from said nozzle, to the nozzle's upper position where gas is ejected from said nozzle. The rear end of the lever has a downwardly extending projection which can be received into a recess in the top of the lighter body when the lever is in the forward position. When the lever is in the rearward position and the rear end of the lever is pressed downward, its projection comes into vertical engagement with the top of the lighter body, which prevents the lever from pivoting far enough to lift the nozzle.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: January 6, 1998
    Assignees: Polycity Industrial Ltd., Tak Fi International (Holdings) Ltd.
    Inventor: Tak Chi Sher
  • Patent number: D518229
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 28, 2006
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: D482932
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: December 2, 2003
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: D498877
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: November 23, 2004
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher
  • Patent number: D410564
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: June 1, 1999
    Assignee: Polycity Enterprise Limited
    Inventor: Tak Chi Sher