Patents by Inventor Louis J. Silver

Louis J. Silver 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: 4244075
    Abstract: A unitary molded plastic pad holder for a scouring device having a handle portion and a cupped bell portion. The bell is a spherical shell segment with a lower edge lying along a plane and a parallel flat portion with an opening for the pad-securing device. The handle has a channel defined by an upper wall, side walls, and an end wall. The handle joins the bell at one side and at about 45.degree. to the plane. The channel extends into the bell and is crossed and closed by a reinforcing arcuate wall perpendicular to the plane. The upper wall is joined to the flat portion of the bell by a pair of reinforcing diverging struts. The handle is reinforced by: (1) a lengthwise rib midway between the side walls, depending from the upper wall and extending from the arcuate wall to a point short of the end wall, (2) three transverse ribs joined to the upper wall, side walls and lengthwise ribs and inclined at about 45.degree.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: January 13, 1981
    Inventor: Louis J. Silver
  • Patent number: 4085475
    Abstract: A scouring device in which a shaped scouring pad is held up into a rigid skirt portion of a pad holder, the skirt portion being generally concave and having downwardly extending projections, by a securing member which has a washer-like member at its base and a stem extending up to a flattened axial portion which goes through a slit in the holder and then is turned about 90.degree.. This, together with projections on the bottom of the pad holder, hold the pad in place. A rigid handle portion extends up above the skirt, and forms the perimeter of a cavity into which the flattened axial portion of the securing member projects. The outer wall of this handle portion is provided with ridges and grooves to give a better grip to one's hand, which can then place pressure almost directly on the underlying pad. Since the pad is forced into a somewhat concave position, the base of the securing member is lifted above the scouring surface and a better scouring surface is provided.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: April 25, 1978
    Inventor: Louis J. Silver
  • Patent number: D242893
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: January 4, 1977
    Inventor: Louis J. Silver
  • Patent number: D247017
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: January 24, 1978
    Inventor: Louis J. Silver
  • Patent number: D247342
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: February 28, 1978
    Inventor: Louis J. Silver
  • Patent number: D297872
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: September 27, 1988
    Inventor: Louis J. Silver
  • Patent number: D297873
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: September 27, 1988
    Inventor: Louis J. Silver