Patents by Inventor Ta C. Wang

Ta C. Wang 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: 5346338
    Abstract: A method for forming working fluid passages in a base of a hydraulic jack includes the steps of: (1) forming a supporting rod seat passage by drilling from a lower portion of a check valve seat on the base to communicate with the chamber defined in a lower portion of a supporting rod seat on the base; (2) forming a first connecting passage by drilling from a side surface of a pressure relieve seat on the base to communicate with the supporting rod seat passage; (3) forming a pressure relieve passage by drilling from the side surface of the relieve seat to communicate with the supporting rod seat passage, the pressure relieve passage is substantially parallel to the first connecting passage and disposed between the first connecting passage and the chamber; (4) forming a second connecting passage by drilling from a second side of the pressure relieve seat to communicate with the pressure relieve passage, the first connecting passage transversely communicates with the second connecting passage; (5) forming a mai
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: September 13, 1994
    Inventor: Ta C. Wang
  • Patent number: 5211375
    Abstract: An electric hydraulic jack/air pump includes a base on which a hydraulic assembly, an air pump assembly, and a transmission assembly are mounted. The hydraulic jack assembly includes a first cylinder for effecting a lifting function upon reciprocating motion of a first piston. The air pump assembly includes a second cylinder for effecting an air-filling function upon reciprocating motion of a second piston. The transmission assembly includes a motor electrically connectable to a power source, a shaft driven by the motor, a wheel eccentrically mounted on the shaft, and a ring securely mounted around the wheel. The first and second pistons are respectively connected to the ring to effect the lifting and air-filling functions.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: May 18, 1993
    Inventor: Ta C. Wang
  • Patent number: 4829625
    Abstract: A motor assembly including a motor, a shaft, a gear assembly and an air compressor, encompassed by a vacuum casing and an impeller housing encompassing a number of evenly spaced impellers and impeller casings, the impellers being driven by the shaft of the motor assembly and the air compressor being driven indirectly by the motor through the gear assembly. The motor assembly and the impeller housing and related parts fit in a cylindrical cavity of a body so as to provide suction; high volume, low pressure air compression; and low volume, high pressure air compression. The body has a handle with a light on its front end.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: May 16, 1989
    Inventor: Ta C. Wang
  • Patent number: D327482
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: June 30, 1992
    Inventor: Ta C. Wang
  • Patent number: D332337
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: January 5, 1993
    Inventor: Ta C. Wang