Patents by Inventor David T. Hon

David T. Hon 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: 6827518
    Abstract: An inner-lock foldable joint has two base plates. One side of each base plate is articulated with the other base plate by way of a hinge. When a user rotates a lever to lock the two base plates, a braking mechanism drives a latching block to move forward, and two flanges of the latching block are inserted into a groove within a depression on one or both of the base plates.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: December 7, 2004
    Inventor: David T. Hon
  • Publication number: 20040190984
    Abstract: An inner-lock foldable joint has two base plates. One side of each base plate is articulated with the other base plate by way of a hinge. When a user rotates a lever to lock the two base plates, a braking mechanism drives a latching block to move forward, and two flanges of the latching block are inserted into a groove within a depression on one or both of the base plates.
    Type: Application
    Filed: June 27, 2003
    Publication date: September 30, 2004
    Inventor: David T. Hon
  • Patent number: 5269550
    Abstract: A bicycle of the "mountain bike" type having two aligned foldable joints in the frame, a folding handlebar assembly and a foldable pedal. Each of the frame joints is mounted in a gap in a tubular frame member and includes two disks disposed flushly against the ends of the tubular members with smaller plugs fast in the members, and two hinge leaves extending across the gap longitudinally of the frame. A rivet on one side of the joint joins two ears on the leaves to form the hinge axis, and a headed fastener with a hexagonal socket is recessed into the thickened central portion of the upper leaf and threaded into the lower leaf to clamp the leaves together. Interlocking ribs between two ears on the other side of the joint prevent relative pivoting movement when the leaves are clamped together. The handlebar assembly has upper and lower tubular adjustment sections for both upward and forward adjustment of the handlebar, and an angled hinge between these sections.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: December 14, 1993
    Assignee: Dahon California, Inc.
    Inventors: David T. Hon, Chuan Liao, Guo M. Cheng
  • Patent number: 4566713
    Abstract: A folding bicycle having an elongated handlebar assembly including an elongated post that is hinged at its lower end to swing into a folded position, and a triangular brace assembly having its apex end connected to the upper-end portion of the post at a pivot that lies along the steering axis fo the bicycle, by a quick-connect and quick-release coupling permitting quick and easy folding and unfolding of the bicycle. The base end of the brace assembly extends transversely of the bicycle for lateral and torsional rigidity, the brace bars being anchored to the frame by two laterally spaced hinges defining a common axis. Each brace bar has a section of adjustable length, and each hinge has a take-up mechanism.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: January 28, 1986
    Assignee: Hon Folder Development Ltd.
    Inventor: David T. Hon
  • Patent number: 4462606
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse in novel ways, along with the pedals, to substantially within the confines outlined by the folded frame.Unique quick-release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are specially designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 31, 1984
    Assignee: Hon Corporation International
    Inventor: David T. Hon
  • Patent number: 4448435
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: May 15, 1984
    Assignee: Hon Corporation International
    Inventor: David T. Hon
  • Patent number: 4438942
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: March 27, 1984
    Assignee: Hon Corporation
    Inventor: David T. Hon
  • Patent number: 4433852
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: February 28, 1984
    Assignee: Hon Corporation
    Inventor: David T. Hon
  • Patent number: 4429890
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 7, 1984
    Assignee: Hon Corporation
    Inventor: David T. Hon
  • Patent number: 4429891
    Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 7, 1984
    Assignee: Hon Corporation
    Inventor: David T. Hon
  • Patent number: 4422663
    Abstract: A foldable, portable bicycle in which the handlebar, is elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse in novel ways, along with the pedals, to substantially within the confines outlined by the folded frame.Unique quick-release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are specially designed for effective performance and easy, compact folding.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: December 27, 1983
    Assignee: Hon Corporation
    Inventor: David T. Hon
  • Patent number: 4344042
    Abstract: Apparatus is provided which includes a laser oscillator for providing light along a first optical path, and a laser amplifier for amplifying light along a second optical path. Means for coupling light between the first and second optical paths is disposed at one end of the laser amplifier, and a nonlinear medium disposed at the other end thereof for intercepting light provided along the first and second optical paths. The laser oscillator provides a single-mode laser beam along the first optical path which is made incident upon the nonlinear medium from substantially opposite directions. A portion of the beam from the laser oscillator is coupled through the laser amplifier, which forms a probe beam that samples the laser amplifier system. This beam further impinges upon the nonlinear medium and interacts with the counter-propagating laser beams therein.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: August 10, 1982
    Assignee: Hughes Aircraft Company
    Inventor: David T. Hon
  • Patent number: 4178561
    Abstract: Arrangements are disclosed for reciprocatively scanning a focused laser beam across an optical frequency converting crystal while deriving an output laser beam at the converted frequency along a stationary path. An effective elongated illumination pattern is provided for the crystal which reduces thermal gradients across the crystal, while the beam density at the crystal is sufficiently large so that high conversion efficiency may be realized.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: December 11, 1979
    Assignee: Hughes Aircraft Company
    Inventors: David T. Hon, Hans W. Bruesselbach, Alexander R. Muir, Harold J. Tuchnyer
  • Patent number: 4067589
    Abstract: A foldable bicycle including a frame having a seat structure and a handlebar structure thereon. A front wheel is rotatably mounted on the frame structure through a front column, and a rear wheel is mounted on the frame structure and is powered through a pedal structure including a sprocket connected to the rear wheel by a chain drive. The main frame is foldable about a hinge point in the area of the sprocket through a unique hinge release and locking mechanism. Moreover, the front wheel is rotatable through the front column in a 180.degree. arc so that the front and back wheels become axially aligned when the hinge locking mechanism is released so that a front portion of the frame section can swing about in a 180.degree. arc to become somewhat parallel to a rear portion thereof. In addition, the present invention provides a unique seat structure which can be collapsed and raised to a desired level.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 10, 1978
    Inventor: David T. Hon
  • Patent number: 4019159
    Abstract: An optical frequency doubling arrangement is disclosed in which the indices of refraction of light in a frequency doubling electro-optic crystal are controlled by both electric field pulses applied across the crystal and heater control pulses for controlling the temperature of an oven in which the crystal is mounted. Both the electric field pulses and the heater control pulses have a duty cycle determined by the detected optical power output from the crystal at the desired double frequency, the heater control pulses being responsive to the measured oven temperature as well. The arrangement is especially suitable for doubling the frequency of 1.06 .mu.m laser beams.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: April 19, 1977
    Assignee: Hughes Aircraft Company
    Inventors: David T. Hon, Richard W. Wyeth
  • Patent number: 4010397
    Abstract: Series and shunt flashlamp triggering arrangements are disclosed wherein an electrically conductive patch is intimately bonded to a portion of the outer lateral surface of the flashlamp housing extending over a portion of the high voltage electrode and terminating at a longitudinal location along the housing substantially aligned with the inner end of the high voltage electrode. An electrically conductive wire connected to the patch extends along the outer lateral surface of the housing from the patch to at least the vicinity of the other electrode. The high voltage electrode defines a sharp-edged annular rim projecting outwardly from its lateral surface adjacent its inner end.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 1, 1977
    Assignee: Hughes Aircraft Company
    Inventor: David T. Hon