Patents by Inventor Marvin L. Rosenfeld

Marvin L. Rosenfeld 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: 4572223
    Abstract: An assembly of a holder and dental brush is disclosed for massaging the gums, and cleaning around and between the teeth. The assembly comprises an elongate, molded plastic including a central holding arm, and angled ends integrally formed with the arm. Each end forms a slit portion that is compressable by means of a small moveable ring. At least one slot is provided in each angled end for receiving a correspondingly shaped handle of a cleaning brush, the slot being formed within the compressible slit. The dental brush is inserted by its stem into the slit and then moved into the slot to form an initial friction fit. The slot is then compressed by sliding a compression ring over the slit to compress the slot and secure the stem and brush in place.The device enables a user to manipulate the brush at an angle to the teeth and gums and effect a good cleaning and massaging action.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: February 25, 1986
    Assignee: Dentool, Inc.
    Inventor: Marvin L. Rosenfeld
  • Patent number: 4004599
    Abstract: A dental floss holder with a unique locking mechanism is provided to lock a length of floss from further extension after it has been extracted from a container integral with the holder. Tension can then be applied to the floss as it is spanned across two spaced supports and wound about a button. This provides a taut span of floss which can be manipulated between the user's teeth. A cutter is provided for severence of excess floss; alternatively, the locked length of floss can be applied directly to the cutter for severence of floss.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: January 25, 1977
    Inventor: Marvin L. Rosenfeld