Patents by Inventor David Charles Richards

David Charles Richards 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).

  • Waste storage device
    Patent number: 6994247
    Abstract: A waste storage device includes an inlet aperture and a length of flexible tubing passing through the inlet aperture from a cassette. The flexible tubing is pinched by a pair of rollers which can have continuous surfaces or multiple paddles. The waste product is placed into the aperture and the rollers rotate drawing the waste product down into the device and pinching the storage bag above it. The operation can be manually or motor driven.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: February 7, 2006
    Assignee: Melrose Products Limited
    Inventor: David Charles Richards
  • Feeding bottles
    Patent number: 6786345
    Abstract: A feeding bottle (10) includes a teat assembly (14) and an air inlet (18) at its base. A stopper assembly (21) seals the aperture (18) and is manually operable to allow air flow through the aperture providing pressure equalisation within the bottle.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: September 7, 2004
    Inventor: David Charles Richards
  • Waste storage device
    Publication number: 20040134914
    Abstract: A waste storage device includes an inlet aperture and a length of flexible tubing passing through the inlet aperture from a cassette. The flexible tubing is pinched by a pair of rollers which can have continuous surfaces or multiple paddles. The waste product is placed into the aperture and the rollers rotate drawing the waste product down into the device and pinching the storage bag above it. The operation can be manually or motor driven.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 15, 2004
    Applicant: Melrose Products Limited
    Inventor: David Charles Richards
  • Waste storage device
    Patent number: 6719194
    Abstract: A waste storage device includes an inlet aperture and a length of flexible tubing passing through the inlet aperture from a cassette. The flexible tubing is pinched by a pair of rollers which can have continuous surfaces or multiple paddles. The waste product is placed into the aperture and the rollers rotate drawing the waste product down into the device and pinching the storage bag above it. The operation can be manually or motor driven.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 13, 2004
    Assignee: Melrose Products Limited
    Inventor: David Charles Richards
  • Feeding bottles
    Publication number: 20020104815
    Abstract: A feeding bottle (10) includes a teat assembly (14) and an air inlet (18) at its base. A stopper assembly (21) seals the aperture (18) and is manually operable to allow air flow through the aperture providing pressure equalisation within the bottle.
    Type: Application
    Filed: December 7, 2001
    Publication date: August 8, 2002
    Inventor: David Charles Richards
  • Waste storage device
    Publication number: 20020066261
    Abstract: A waste storage device (21) includes an inlet aperture (12) and a length of flexible tubing (2) passing through the inlet aperture (12) from a cassette. The flexible tubing (2) is pinched by a par of rollers (111) which can have continuous surfaces or multiple paddles. The waste product is placed into the aperture (12) and the rollers (111) rotate drawing the waste product down into the device and pinching the storage bag above it. The operation can be manually or motor driven.
    Type: Application
    Filed: October 9, 2001
    Publication date: June 6, 2002
    Inventor: David Charles Richards