Patents by Inventor Robert J. Libman

Robert J. Libman 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: 6925678
    Abstract: A dust pan has both an elongate handle and a receptacle for a removable long handle. The elongate handle may be unitary with and extend rearwardly from a back wall on the dust pan. The receptacle may be disposed along an upright back wall of the dust pan, and may include a set of internal thread segments beneath an extended channel, enabling the receptacle to accommodate either a threaded ¾? diameter handle, or a 1? diameter handle.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 9, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Fernando Santos
  • Patent number: 6920664
    Abstract: A mop with an attached wringer cup has a set of perforations near the outwardly tapering lower end of the wringer cup. The perforations have a width that is equal to about one-third the diameter of the handle, and less than the width of the flat mop strips that form the mop elements on the end of the handle. The upper end of the wringer cup fits within a lower part of a handgrip on the handle.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: July 26, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: 6892415
    Abstract: A scrubber with a triangular cross section is attached to a sponge mop so that the scrubber face is angled at an angle of about 60° in one direction with respect to the handle, and the sponge mop element is angled at an angle of about 60° in the opposite direction with respect to the handle. The scrubber is attached with a pair of mounting stems. The mounting stems take the form of walls that are spaced at a distance apart. There is an outwardly-facing ridge on each wall that extends from the wall by no more than half the distance between the walls. Each set of walls extends through an aperture on a mounting head, and the scrubber is held in place by the engagement of the ridges with a mounting face on the mounting head. The mounting stems are spaced at least about two inches apart, and the opposed walls extend perpendicularly to the length of the body of the scrubber. The sponge mop element covers the ridges, helping to prevent inadvertent disengagement.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: May 17, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Publication number: 20040187248
    Abstract: A bucket combination has a bucket and a removable inner bucket and wringer that fit within it. The inner bucket fits on one side of the larger bucket, and has three loops with tabs that extend over an upper rim on the bucket and engage a lower edge section on the rim. The inner bucket also has a bail that fits within a recess to provide a flat upper surface. The wringer rests on top of the upper surface on the inner bucket, and has a wringing section that fits within it. Flanges on the wringer fit within the loops on inner bucket and directly engage the lower edge section on the rim on the larger bucket. The flanges have an outwardly-extending arm.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Inventors: Robert J. Libman, Enzo Berti
  • Publication number: 20040187239
    Abstract: A scrubber with a triangular cross section is attached to a sponge mop so that the scrubber face is angled at an angle of about 60° in one direction with respect to the handle, and the sponge mop element is angled at an angle of about 60° in the opposite direction with respect to the handle. The scrubber is attached with a pair of mounting stems. The mounting stems take the form of walls that are spaced at a distance apart. There is an outwardly-facing ridge on each wall that extends from the wall by no more than half the distance between the walls. Each set of walls extends through an aperture on a mounting head, and the scrubber is held in place by the engagement of the ridges with a mounting face on the mounting head. The mounting stems are spaced at least about two inches apart, and the opposed walls extend perpendicularly to the length of the body of the scrubber. The sponge mop element covers the ridges, helping to prevent inadvertent disengagement.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 30, 2004
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: 6773194
    Abstract: A soap-dispensing scrubber has a base with a sponge on one side and a reservoir on the other side. The reservoir has an open-ended wall that rotates between a dispensing position, a closed position, and a removable position. In the closed position, a sealing surface closes a soap aperture in the base. Ridges are used to hold the base and the reservoir together. A projection and a recess on the ridges prevent inadvertent rotation of the parts.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: August 10, 2004
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Marco Bizzotto
  • Publication number: 20040016072
    Abstract: A mop has an angled handle and a working end with a pair of opposed rollers. An actuator on the mop can be moved between a replacement position, a wringing position, and an intermediate use position. When in the replacement position, a mop head can be removably attached to the working end of the handle by sliding the mop head sideways so an arm on a connector passes between a shoulder and a bridge on the mop head. The connector has a loop at its upper end, and is connected to a slotted mounting stem on an actuator. The mop head is also provided with a threaded aperture and slots, allowing it to be used in other mops.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 29, 2004
    Inventors: Robert J. Libman, Enzo Berti, Roberto Pellacini, Maraco Bizzotto
  • Publication number: 20030231924
    Abstract: A soap-dispensing scrubber has a base with a sponge on one side and a reservoir on the other side. The reservoir has an open-ended wall that rotates between a dispensing position, a closed position, and a removable position. In the closed position, a sealing surface closes a soap aperture in the base. Ridges are used to hold the base and the reservoir together. A projection and a recess on the ridges prevent inadvertent rotation of the parts.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 18, 2003
    Inventors: Robert J. Libman, Marco Bizzotto
  • Patent number: D501088
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 25, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D501969
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 15, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Mop
    Patent number: D505235
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: May 17, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Mop
    Patent number: D507855
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: July 26, 2005
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D483186
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: December 9, 2003
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: RE38380
    Abstract: A wringer mop has a conventional handle with mop fibers extending from a lower point on the handle to a collar that can be lifted to a raised axial position and twisted to wring the mop. The mop also has a pawl on a ring fixed to the handle. When the mop is wrung, the pawl automatically engages a set of raised internal ribs inside the collar to prevent the mop from unwinding. The mop can be returned to normal use by simply pushing the collar down, without the need to fuss with button or levers to disengage the pawl from the ribs.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: January 13, 2004
    Inventors: Robert J. Libman, Enzo Berti, Roberto Pellacini, Marco Bizzotto
  • Patent number: D487638
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: March 23, 2004
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D488302
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: April 13, 2004
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D493265
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: July 20, 2004
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D499223
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: November 30, 2004
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D500184
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: December 21, 2004
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti
  • Patent number: D500223
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: December 28, 2004
    Assignee: The Libman Company
    Inventors: Robert J. Libman, Enzo Berti