Patents by Inventor John E. Maldonado

John E. Maldonado 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).

  • Dual liquid cartridge dispenser
    Patent number: 5042691
    Abstract: A dual cartridge dispenser. Each cartridge has an exit orifice through which fluid is dispensed when a tube of the cartridge is compressed. A dispensing lever is manually displaceable by a user to compress the tube. A movable compression member is adjustably mounted to the dispsensing lever so as to be selectively located at a first position adjacent the pump portion of the second cartridge. A knob extending outside the dispenser is connected to the compression member for moving the compression member to the first position or to the second position to thereby select the cartridge to be dispensed from. When the dispensing member is operated, it causes only the tube that is adjacent the compression member to be compressed between the compression member and an opposed pinch surface in the dispenser.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: August 27, 1991
    Assignee: Scott Paper Company
    Inventor: John E. Maldonado
  • Dual liquid cartridge dispenser
    Patent number: 4895276
    Abstract: A dual cartridge dispenser. Each cartridge has an exit orifice through which fluid is dispensed when a pump portion of the cartridge is compressed. A movable compression member in the dispenser can be located at a first position adjacent the pump portion of the first cartridge or at a second position adjacent the pump portion of the second cartridge. A knob extending outside the dispenser is connected to the compression member for moving the compression member to the first position or to the second position to thereby select the cartridge to be dispensed from. When a movable dispensing member of the dispenser is operated, it causes only the cartridge pump portion that is adjacent the compression member to be compressed between the compression member and an opposed pinch surface in the dispenser thereby dispensing fluid from the cartridge.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: January 23, 1990
    Assignee: Sani-Fresh International, Inc.
    Inventor: John E. Maldonado
  • No-touch liquid soap dispenser
    Patent number: D359868
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: July 4, 1995
    Assignee: Scott Paper Company
    Inventors: Allen E. Brandenburg, John E. Maldonado
  • Liquid soap dispenser
    Patent number: D386344
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: November 18, 1997
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Allen E. Brandenburg, John E. Maldonado