Patents by Inventor David Karpal

David Karpal 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: 5221016
    Abstract: A new insulated container, includes a hollow bottle being composed of pliable resilient material, and an insulation sleeve disposed over a portion of the outer surface of the bottle and being contracted frictionally thereabout. The sleeve has a mouth portion for receiving the bottle. The sleeve is composed of a pliable resilient material and includes an outer insulation sleeve portion and an inner pliable sleeve portion having a smooth inner surface to facilitate the insertion of the bottle into the sleeve. The method includes forming the two-part sleeve, and then inserting the bottle into the sleeve by first moving them together telescopically until a portion of the bottle disposed within the sleeve. Thereafter, the axially directed bottle-contracting impacts are applied abruptly to the bottle and the sleeve at opposite ends thereof to cause them to move axially relative to one another until the bottle is free to expand outwardly within the sleeve for gripping the bottle frictionally.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: June 22, 1993
    Inventor: David Karpal
  • Patent number: 4623076
    Abstract: A venting type container to relieve pressurized carbonated liquids and the like without discharging the liquid therefrom while equalizing the interior container pressure with atmospheric pressure including in combination a flexible wall container for receiving the liquid and adapted to operatively receive a removable dispensing cap assembly which when brought into full threaded engagement with said dispensing cap assembly redefines the opening to said container; and a depressurization sealing unit which is operatively received on the dispensing cap assembly in sealing engagement to seal and contain the liquid within the container and define an interior cavity oriented between the dispensing cap assembly and the depressurization sealing unit.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: November 18, 1986
    Inventor: David Karpal
  • Patent number: RE33539
    Abstract: A venting type container to relieve pressurized carbonated liquids and the like without discharging the liquid therefrom while equalizing the interior container pressure with atmospheric pressure including a combination a flexible wall container for receiving the liquid and adapted to operatively receive a removable dispensing cap assembly which when brought into full threaded engagement with said dispensing cap assembly redefines the opening to said container; and a depressurization sealing unit which is operatively received on the dispensing cap assembly in sealing engagement to seal and contain the liquid within the container and define an interior cavity oriented between the dispensing cap assembly and the depressurization sealing unit.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: February 19, 1991
    Inventor: David Karpal