Patents by Inventor Clifford Raab

Clifford Raab 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: 6058854
    Abstract: A lightweight, high-strength support platform for use in furniture construction, which has superior structural integrity and can be used, by way of example, in portable folding tables, in work tables and in modular furniture of the character typically used in modern office complexes. The support platform embodies a novel structural reinforcement core, and exhibits superior strength characteristics. In one form of the invention, the support platform is used in the construction of a lightweight, readily portable folding table which includes two pair of legs that are pivotally connected to the platform for pivotal movement between an extended operational position and a retracted storage and transport position.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: May 9, 2000
    Assignee: Virco Mfg. Corporation
    Inventors: Matt Tarnay, Clifford Raab
  • Patent number: 5983807
    Abstract: A lightweight, high strength folding table having a top assembly which includes a novel high strength, plastic reinforcing core. Pivotally connected to the top assembly are supporting legs. Interconnecting the supporting legs with the top assembly are novel folding leg mechanisms which include top assembly engaging links and leg engaging links pivotally connected both to the top assembly engaging links and also to the supporting legs. A locking rod extends between the top assembly engaging links, the end portion of which is slidably received within a slot formed in each of the leg engaging links. When the rod resides within the locking portion of the slot, the top assembly engaging links and the leg engaging links are locked against relative pivotal movement. However, when the locking rod is lifted slightly, the rod ends move into the channel portion of the slot permitting free pivotal movement of the cooperating links.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 16, 1999
    Assignee: Virco Mfg. Corporation
    Inventors: Matt Tarnay, Clifford Raab
  • Patent number: 5868081
    Abstract: A lightweight, high-strength support platform for use in furniture construction, which has superior structural integrity and can be used, by way of example, in portable folding tables, in work tables and in modular furniture of the character typically used in modern office complexes. The support platform which may be rectangular or non-rectangular embodies a novel structural reinforcement core of a unique configuration which is both lightweight and exhibits superior strength and durability characteristics. In one form of the invention, the support platform also includes a reinforcement beam which circumscribes the central portion of the reinforcement core and which is generally "I" shaped in cross section.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: February 9, 1999
    Assignee: Virco Mfg. Corporation
    Inventor: Clifford Raab
  • Patent number: 5732637
    Abstract: A lightweight, high-strength support platform for use in furniture construction, which has superior structural integrity and can be used, by way of example, in portable folding tables, in work tables and in modular furniture of the character typically used in modern office complexes. The support platform embodies a novel structural reinforcement core of a unique configuration which is both lightweight and exhibits superior strength and durability characteristics. In one form of the invention, the support platform is used in the construction of a lightweight, readily portable folding table which includes two pair of legs that are pivotally connected to the platform for pivotal movement between an extended operational position and a retracted storage and transport position.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: March 31, 1998
    Assignee: Virco Mfg. Corporation
    Inventor: Clifford Raab
  • Patent number: 5694865
    Abstract: A lightweight, high-strength support platform for use in furniture construction, which has superior structural integrity and can be used, by way of example, in portable folding tables, in work tables and in modular furniture of the character typically used in modern office complexes. The support platform embodies a novel structural reinforcement core of a unique configuration which is both lightweight and exhibits superior strength and durability characteristics. In one form of the invention, the support platform is used in the construction of a lightweight, readily portable folding table which includes two pair of legs that are pivotally connected to the platform for pivotal movement between an extended operational position and a retracted storage and transport position.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: December 9, 1997
    Assignee: Virco Mfg. Corporation
    Inventor: Clifford Raab
  • Patent number: 4121308
    Abstract: There is disclosed a water closet water saving device comprising a container consisting of flexible material and having one or more accordion-like pleats formed in the wall of the container. The pleats enable recoverable compression of the container along an axis perpendicular to the plane of the pleats. The container is shaped so that it may be positioned within any conventional water closet in a manner such that it does not interfere with the operation of the tank equipment.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: October 24, 1978
    Assignee: Displacement Systems Corporation
    Inventor: Clifford Raab
  • Patent number: D407830
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: April 6, 1999
    Assignee: Virco Mfg. Corporation
    Inventor: Clifford Raab