Patents by Inventor Randall S. Asher

Randall S. Asher 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: 5735011
    Abstract: A toothbrush capable of removing plaque from teeth wherein a plurality of plaque removing members formed from a mixture of a relatively soft elastomeric material and particles of an abrasive material project outwardly from a support portion of the toothbrush and each plaque removing member is surrounded by a plurality of tufts of bristles formed from conventional materials and wherein each plaque removing member has a base portion and a plurality of spaced apart projections with each projection having an outer surface with a plurality of crevices formed therein.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: April 7, 1998
    Inventor: Randall S. Asher
  • Patent number: 5727830
    Abstract: A snow shovel is presented capable of reducing the amount of work needed to clear heavy and packed snow. The shovel is composed of a handle, shaft and scoop each of molded plastic. The invention comprises a scoop with a front edge and two stainless steel leading edges-angled at approximately 160 degrees. This orientation results in a snow shearing force as the scoop is moved through heavy and packed snow reducing the amount of energy required for the removal of heavy and packed snow.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: March 17, 1998
    Inventor: Randall S. Asher
  • Patent number: 5573400
    Abstract: An expanding dental wedge structure to be used in association with dental matrix bands as used for placing dental restorative materials. The pre-expansion shape in cross section is roughly triangular with the dimensions of the triangle decreasing along the length ending in a pointed manner (FIG. 1). The wedge (FIG. 1) is to be inserted into the area between teeth, one of which is carrying a matrix band. After insertion, the wedge is exposed to moisture causing pronounced expansion (FIG. 2), which through equal pressure on the tooth surfaces and gingival tissues involved does: (a) press the matrix tightly against the tooth sealing out moisture contamination, (b) absorb moisture, drying the surgical field, and (c) decreases blood flow and subsequent bacterial and vital transmission.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: November 12, 1996
    Inventor: Randall S. Asher