Patents by Inventor Steven A. Berkowitz

Steven A. Berkowitz 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).

  • High load bearing central-braking caster
    Patent number: 6662404
    Abstract: A high-load, high-performance, twin-wheeled central-braking caster for a bed is provided having two wheels each comprised of an aluminum core disc and an annular cylindrical flange. The inside of the flanges are covered with elastomeric material in order to serve as brake drums for the wheels. The caster has a central braking mechanism comprising a spring-loaded double-armed brake lever mounted on a pivot pin to guide the brake lever so that it pivots exclusively about a horizontal axis perpendicular to the direction of the wheels' forward rolling movement. The central braking mechanism further comprises a pivot block with an aperture for receiving the pivot pin for mounting the brake lever. The braking mechanism further comprises two compression springs having sufficient spring force to bias the double-armed brake lever away from the wheel.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: December 16, 2003
    Assignee: KCI Licensing, Inc.
    Inventors: Glenn C. Stroh, Steven A. Berkowitz
  • Pressure relief air mattress and related system
    Patent number: 5594963
    Abstract: A pressure-relieving therapeutic mattress system that uniquely combines three releasably connected main air cushions that are separately controlled for supporting corresponding portions of a patient at minimal patient interface pressures, together with a sculpted foam sub-mattress supported on a versatile, lightweight frame having a specially-adapted hard pan surface and an efficient, lightweight, variable-speed air supply system.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: January 21, 1997
    Assignee: Kinetic Concepts, Inc.
    Inventor: Steven A. Berkowitz
  • Method and apparatus for use in endodontic treatment
    Patent number: 4789335
    Abstract: Method and apparatus for use in endodontic treatment include providing a one-way valve in the root canal system of a tooth undergoing endodontic therapy by which pressure which may build-up in the root canal system due to the production of purulence or gases from necrosing and/or infected tissue is vented from the root canal system and by which unobstructed drainage of the tooth is permitted, while at the same time food debris and foreign matter are prevented from entering and/or becoming packed within the root canal system thereby eliminating the possibility of the canal system becoming plugged and/or reducing introduction of bacteria into the root canal system. A method is disclosed for fitting a tooth with a one-way valve in a simple yet stable manner.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: December 6, 1988
    Inventors: Paul Geller, Steven Berkowitz