Patents by Inventor Yaozhao Pan

Yaozhao Pan 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).

  • Water outlet control device of shower spray nozzle
    Patent number: 7992807
    Abstract: A mechanism of controlling water outflow of shower is provided in the casing of shower. The water outlet of the mechanism is aligned with the water outlet of shower. The mechanism of controlling water outflow comprises inner sealing shell, outer sealing shell, and an intermediate cavity defined between the inner sealing shell and the outer sealing shell. A water outflow cavity is formed between outer sealing shell and water outflow disc. The intermediate cavity communicates with intake channel of shower. The mechanism of controlling water outlet also comprises separating sealing pad inside the intermediate cavity, with one side sticked to the water outflow disc of outer sealing shell and the other side sticked to valve elements. The intermediate cavity comprises the inner cavity and outer cavity. The inner cavity communicates with water outflow cavity through the first small hole and with outer cavity through a through-hole. The intake channel communicates with outer cavity.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: August 9, 2011
    Inventor: Yaozhao Pan
  • Water Outlet Control Device of Shower Spray Nozzle
    Publication number: 20100301141
    Abstract: A mechanism of controlling water outflow of shower is provided in the casing of shower. The water outlet of the mechanism is aligned with the water outlet of shower. The mechanism of controlling water outflow comprises inner sealing shell, outer sealing shell, and an intermediate cavity defined between the inner sealing shell and the outer sealing shell. A water outflow cavity is formed between outer sealing shell and water outflow disc. The intermediate cavity communicates with intake channel of shower. The mechanism of controlling water outlet also comprises separating sealing pad inside the intermediate cavity, with one side sticked to the water outflow disc of outer sealing shell and the other side sticked to valve elements. The intermediate cavity comprises the inner cavity and outer cavity. The inner cavity communicates with water outflow cavity through the first small hole and with outer cavity through a through-hole. The intake channel communicates with outer cavity.
    Type: Application
    Filed: April 13, 2006
    Publication date: December 2, 2010
    Inventor: Yaozhao Pan
  • Shower nozzle
    Patent number: D562941
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: February 26, 2008
    Inventor: Yaozhao Pan
  • Shower nozzle
    Patent number: D562942
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: February 26, 2008
    Inventor: Yaozhao Pan
  • Shower nozzle
    Patent number: D562944
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: February 26, 2008
    Inventor: Yaozhao Pan