Patents by Inventor Andrew L. Alldredge

Andrew L. Alldredge 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).

  • Publication number: 20040163166
    Abstract: The disclosed portable plunger has an elongated shaft with a hand gripping portion adjacent one end and a plunger head fixed to the shaft adjacent the opposite end. The plunger head has an impervious flexible material defining an exterior surface sized slightly larger than an outlet passage of a toilet bowl to be plunged. The head is also resilient and elastic to allow reduction of the exterior head surface to become smaller than the bowl passage to allow plunger head insertion into the passage, while then expanding and seating against the bowl passage walls in the mode of a piston positioned in the passage. Thus, axial shifting of the plunger head in the passage hydraulically creates water/waste pressure and/or flow surges in the passage, serving to break up downstream clogs therein.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventor: Andrew L. Alldredge
  • Patent number: 6779202
    Abstract: The disclosed portable plunger has an elongated shaft with a hand gripping portion adjacent one end and a plunger head fixed to the shaft adjacent the opposite end. The plunger head has an impervious flexible material defining an exterior surface sized slightly larger than an outlet passage of a toilet bowl to be plunged. The head is also resilient and elastic to allow reduction of the exterior head surface to become smaller than the bowl passage to allow plunger head insertion into the passage, while then expanding and seating against the bowl passage walls in the mode of a piston positioned in the passage. Thus, axial shifting of the plunger head in the passage hydraulically creates water/waste pressure and/or flow surges in the passage, serving to break up downstream clogs therein.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: August 24, 2004
    Inventor: Andrew L. Alldredge
  • Patent number: 5809996
    Abstract: The disclosed inhalation apparatus is suited for easily administering aerosol medication via a metered dose pressurized canister. The apparatus has a collapsible tubular body comprised of axially nested rigid pieces including end pieces with opposite connections respectively for directing spray from the canister axially through the tubular body cavity from one connection toward the other connection serving as the user's tubular mouthpiece. The tubular body can be axially shifted between an expanded operational position of maximum body cavity volume and maximum separation between the end pieces and a collapsed storage position of minimum separation where the rigid pieces are nested together.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: September 22, 1998
    Inventor: Andrew L. Alldredge
  • Patent number: 5571246
    Abstract: The disclosed inhalation apparatus is suited for easily administering aerosol medication via a metered dose pressurized canister. The apparatus has a collapsible tubular body comprised of axially nested rigid pieces including end pieces with opposite connections respectively for directing spray from the canister axially through the body cavity toward the other connection serving as the user's tubular mouthpiece. The tubular body can be axially shifted between an expanded operational position of maximum cavity volume and maximum separation between the end pieces and a collapsed storage position of minimum separation where the end pieces are nested together. The end pieces have end plates of substantially equal size with peripheries suited to be gripped by the user, and a flange on one end plate that cooperates with the other end plate in the collapsed position, providing a housing for the rigid pieces when collapsed.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: November 5, 1996
    Inventor: Andrew L. Alldredge