Patents by Inventor Glen Dorow

Glen Dorow 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).

  • Pressure sprayer
    Patent number: 6056167
    Abstract: A non-round pressure sprayer unit for dispensing liquids from a closed container including a pressure pump, tube/hose connection, and applicator wand. The pressure pump mechanism further includes a pump housing sealingly insertable in the pressure sprayer bottle, a plunger for reciprocating within the housing with an upstroke and a downstroke, and a pump piston at the lower end of the plunger. The pump piston includes a bottom closure for closing the lower end of the pump housing when the piston is lowered on the downstroke and capable of opening the lower end of the pump housing when the piston is raised in the upstroke. A pump seal seals the piston and the inner wall of the pump housing when the piston is on its downstroke but becomes unsealed on the upstroke of the piston.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: May 2, 2000
    Assignee: United Industries Corporation
    Inventors: Glen Dorow, Steve Hill, Dean Maune
  • Pressure pump for dispensing liquid
    Patent number: 5669532
    Abstract: A non-round pressure sprayer unit for dispensing liquids from a closed container including a pressure pump, tube/hose connection, and applicator wand. The pressure pump mechanism further includes a pump housing sealingly insertable in the pressure sprayer bottle, a plunger for reciprocating within the housing with an upstroke and a downstroke, and a pump piston at the lower end of the plunger. The pump piston includes a bottom closure for closing the lower end of the pump housing when the piston is lowered on the downstroke and capable of opening the lower end of the pump housing when the piston is raised in the upstroke. A pump seal seals the piston and the inner wall of the pump housing when the piston is on its downstroke but becomes unsealed on the upstroke of the piston.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: September 23, 1997
    Assignee: United Industries Corporation
    Inventors: Glen Dorow, Steve Hill, Dean Maune