Patents by Inventor Fred A. Ravreby

Fred A. Ravreby 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: 5052575
    Abstract: A holder for an aseptic package including a container, a removable cover, and a stopper disposed beneath the cover when it is positioned in a straw hole on the upper surface of the package, so that the cover holds the stopper securely within the straw hole.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: October 1, 1991
    Assignee: Up & Adam, Inc.
    Inventor: Fred Ravreby
  • Patent number: 4498467
    Abstract: A device for forming an orthopedic cast is disclosed which is composed of a core having a fibrous, porous tape rolled thereabout. The tape is impregnated with a first liquid component of a two-component hardenable system. The core is composed of a pressure rupturable container having the second component of the two-component system therein in liquid form. The entirety is encased in a flexible package which serves as a mixing chamber for intermixing the first and second components upon application of pressure to the package sufficient to rupture the core. After intermixing, the package is opened, the tape unrolled and placed about the broken limb in the conventional manner. The cast hardens within a short time at ambient temperature to provide a light-weight, breathable and waterproof orthopedic cast.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: February 12, 1985
    Assignees: H. B. Kirkpatrick, F. A. Ravreby
    Inventors: Harold B. Kirkpatrick, Fred A. Ravreby, Henry L. Richbourg
  • Patent number: 3990683
    Abstract: Packaging means, especially adapted for packaging a spool of tape and necessary resinforming reactant liquids for making a resin-type orthopedic cast, and for activating the initially separated liquids, applying the mixed liquids by centrifuge on to the tape, and extracting by centrifuge any excess liquid on the tape, all within the unopened package. Package comprises an outer container having a liquid-tight top closure; a container-like partition wall structure nested within and dividing the outer container interior into a lower, "mixing" region and an upper, "wetting and extraction" region; and an inverted cup-shaped rigid inner container within the mixing region for storing one reactant liquid separate from another placed at the bottom of the outer containers. A tape spool is mounted on the partition and within the upper region, and the partition is conical-shaped to funnel the mixed liquid from the mixing region into a hollow core region of the tape spool.
    Type: Grant
    Filed: December 24, 1974
    Date of Patent: November 9, 1976
    Assignee: Reichhold Chemicals, Inc.
    Inventor: Fred A. Ravreby
  • Patent number: D276788
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: December 18, 1984
    Assignee: Alon Products Inc.
    Inventor: Fred A. Ravreby
  • Patent number: D382367
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: August 12, 1997
    Assignee: Enviro Pac International L.l.c.
    Inventors: Michael S. Andrade, Fred A. Ravreby