Patents Assigned to Hu-Friedy Mfg. Co., Inc.
  • Patent number: 5433929
    Abstract: A sterilization and storage cassette formed of heat-resistant plastic and having two identical tray halves. In one embodiment, at least one tray half includes a rotatable retaining member for retaining dental instruments within the tray. In a second embodiment, a clamping member is inserted in one tray and at least one and preferably a plurality of instrument supports is inserted into the other tray. When the trays are closed together, the clamping member presses down upon and retains dental instruments placed on the supports. The trays are detachably connected through a hinge mechanism. Each tray has separate, distinct hinge members on one of its sides, and a set of separate, distinct latch members on another of its sides.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: July 18, 1995
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Roy E. Riihimaki, James M. Kudla
  • Patent number: 5294413
    Abstract: A sterilization and storage cassette formed of heat-resistant plastic and having two identical tray halves. In one embodiment, at least one tray half includes a rotatable retaining member for retaining dental instruments within the tray. In a second embodiment, a clamping member is inserted in one tray and at least one and preferably a plurality of instrument supports is inserted into the other tray. When the trays are closed together, the clamping member presses down upon and retains dental instruments placed on the supports. The trays are detachably connected through a hinge mechanism. Each tray has separate, distinct hinge members on one of its sides, and a set of separate, distinct latch members on another of its sides.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: March 15, 1994
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Roy E. Riihimaki, James M. Kudla
  • Patent number: 5284632
    Abstract: A sterilizable instrument cassette for use in storage and sterilization of medical and dental instruments includes two individual storage trays with base plates carrying silicone instrument-locating rails, and rotatable clamping members provided with silicone compression rails. The two trays may be separated or assembled and latched together, while the rotatable clamping member may be latched in its closed position. Multiple functions are performed by unitary structures simply and economically formed from single sheets of metal by stamping and bending.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: February 8, 1994
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: James M. Kudla, Roy E. Riihimaki
  • Patent number: 5256064
    Abstract: An instrument employing multiple adhesives for manipulating and placing dental prosthetics includes an autoclavable handpiece and a removable, disposable foam double-stick pad with pressure-sensitive adhesive coated on opposite sides and protected by release paper.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: October 26, 1993
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Roy E. Riihimaki, James M. Kudla, Jacqueline Dzierzak
  • Patent number: 5215726
    Abstract: A sterilizable instrument cassette for use in storage and sterilization of medical and dental instruments includes two individual storage trays with base plates carrying silicone instrument-locating rails, and rotatable clamping members provided with silicone compression rails. The two trays may be separated or assembled and latched together, while the rotatable clamping member may be latched in its closed position. Multiple functions are performed by unitary structures simply and economically formed from single sheets of metal by stamping and bending.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: June 1, 1993
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: James M. Kudla, Roy E. Riihimaki
  • Patent number: 5161971
    Abstract: An autoclavable instrument for use in discovering and recording information during a dental examination includes a handpiece with a dental probe at one end and a pen at the other. The pen may be reversed or otherwise sealed to withstand autoclaving.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: November 10, 1992
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Karen L. Neiner, Roy E. Riihimaki, Sharon Burns
  • Patent number: D319696
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: September 3, 1991
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventor: Wendell Guthrie
  • Patent number: D335347
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: May 4, 1993
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventor: Timothy McKeown
  • Patent number: D336517
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: June 15, 1993
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventor: Timothy McKeown
  • Patent number: D342446
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: December 21, 1993
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Craig A. Parker, Rodney D. Borst
  • Patent number: D360697
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: July 25, 1995
    Assignee: Hu-Friedy Mfg. Co., Inc.
    Inventors: Roy E. Riihimaki, James M. Kudla