Patents by Inventor I-Chih Pai

I-Chih Pai 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).

  • On-off switch structure of a gas tank
    Patent number: 6530394
    Abstract: A gas tank on-off switch structure includes a main body and a leakproof member which is structurally independent of the main body and is detachably fastened to the main body. The main body is connected with the interior of the gas tank. The leakproof member is formed of a fastening body, an elastic member, a plug, and a locating body. The fastening body is fastened to the main body and a gas pipe connector. The elastic element and the plug are located in the fastening body in conjunction with the locating body. The plug serves to prevent the gas leak in conjunction with the elastic element.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: March 11, 2003
    Inventor: I-Chih Pai
  • On-off switch structure of a gas tank
    Publication number: 20020112766
    Abstract: A gas tank on-off switch structure comprises a main body and a leakproof member which is structurally independent of the main body and is detachably fastened with the main body. The main body is connected with the interior of the gas tank. The leakproof member is formed of a fastening body, an elastic member, a plug, and a locating body. The fastening body is fastened with the main body and a gas pipe connector. The elastic element and the plug are located in the fastening body in conjunction with the locating body. The plug serves to prevent the gas leak in conjunction with the elastic element.
    Type: Application
    Filed: January 23, 2002
    Publication date: August 22, 2002
    Inventor: I-Chih Pai