Patents by Inventor Jin S. Ha

Jin S. Ha 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: 5637046
    Abstract: A variable ratio chain-belt transmission for use in a vehicle, includes a pair of variable ratio pulleys having a plurality of pins which are lined in a plurality of circles, a chain-belt engaging with both variable ratio pulleys. Different sized pulleys are formed by pushing and pulling the pins in and out of engagement with the chain-belt by activating various solenoids, whereby various pulley ratios are formed when the plurality of pins form different relative sized pulleys. A clutch mechanism for use with the variable ratio chain-belt transmission includes distinct forward and reverse clutch assemblies.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: June 10, 1997
    Inventor: Jin S. Ha
  • Patent number: 5547219
    Abstract: A crash net safety device for an automobile, includes a U-shaped bar having a net fixed to the ceiling of the automobile and pivotally connected to both interior sides of the automobile. A trigger is operatively connected to one end of the U-shaped bar and connected to impact points located outside of the automobile, whereby upon vehicle impact, the U-shaped bar with the net comes down and protects passengers in the automobile during the vehicle accident.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: August 20, 1996
    Inventor: Jin S. Ha
  • Patent number: 5443423
    Abstract: A variable bolt pin chain belt transmission for use in a vehicle, includes a pair of variable bolt pin pulleys having a plurality of bolt pins which are lined in a plurality of circles, a chain belt engaging with both variable bolt pin pulleys. Different sized pulleys are formed by pushing and pulling the bolt pins in and out of engagement with the belt by different formed solenoids, whereby upon the selection of the gear selector, the plurality of bolt pins form different relative sized pulleys for the wheel in the forward or reverse direction at different pulley ratios.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: August 22, 1995
    Inventor: Jin S. Ha
  • Patent number: 4823629
    Abstract: An automatic transmission for use in vehicles which comprises clutch gears operated by a pair of L-shaped bars and controllers of the L-shaped bars by pushing an accelerator pedal whereby the clutch gears can selectively contact in frictional engagement corresponding surfaces of a clutch wheel for operating the engine without requiring the use of a torque converter.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: April 25, 1989
    Inventor: Jin S. Ha
  • Patent number: 4657057
    Abstract: A safety air valve for a tire comprising a casing adapted to be vertically mounted to a rim of a tire, the casing defining an air channel extending therethrough, the air channel containing an internal shoulder which extends into the air channel, a valve extending through the air channel for opening and closing the flow of air through the channel, the valve including a valve stem containing a valve head at one end thereof, the valve head being provided with a lip which is adapted to engage the shoulder in the air channel through the movement of the valve head through the air channel, a spring operatively associated with the valve stem to bias the valve head in closed position with the lip in engagement with the shoulder, and a weight member attached to the valve head whereby upon the achieving of excessive speed and correspondingly excessive tire rotation the centrifugal force on the weight member causes the valve to open against the bias of the spring.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: April 14, 1987
    Inventor: Jin S. Ha