Patents by Inventor Masaaki Nakaya

Masaaki Nakaya 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: 4360130
    Abstract: The wall-mounted dispenser for liquid soap has a separable reservoir with an outlet valve. The dispenser further includes a main body with a second outlet valve. When the reservoir is mounted to the main body, a metering chamber is defined between the two outlet valves. The dispensing function is experienced by pushing in a plunger which temporarily decreases the chamber volume and forces the main body outlet valve to open temporarily, thus dispensing a charge of liquid soap. As the plunger is released, a spring return pushes the plunger out, decreasing pressure in the metering chamber, which is equalized as the first outlet valve temporarily opens, admitting a next charge of liquid soap from the reservoir to the metering chamber. The reservoir is replaced by pushing in a resilient release, but the resilient release is preferably normally provided with a stop which must first be moved out of the way.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: November 23, 1982
    Assignees: Duskin Franchise Kabushiki Kaisha, Kabushiki Kaisha Sunpak
    Inventors: Haruo Nishimura, Masaaki Nakaya, Katsuji Nakano, Noboru Matsuda, Noriyuki Matsumoto
  • Patent number: D266636
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: October 26, 1982
    Assignee: Duskin Franchise Kabushiki Kaisha
    Inventors: Haruo Nishimura, Masaaki Nakaya, Katsuji Nakano, Noboru Matsuda, Noriyuki Matsumoto