Resources Contact Us Home
Williams; William H.
Rancho Palos Verdes, CA
No. of patents:

Patent Number Title Of Patent Date Issued
5526547 Wet and dry vacuum cleaner June 18, 1996
A floor cleaner having a rigid vacuum-retaining outer case, which is adapted to serve as a liquid reservoir, a flaccid container within the case, means for creating vacuum within the case in and around the flaccid container including an inlet communicating with the case, means commun
5168599 Wet and/or dry vacuum cleaning unit December 8, 1992
A vacuum system having a closed air flow loop for cleaning rugs and floor or other surfaces. There is a vacuum source having a suction side and a controlled air flow pressure side (exhaust side). A head assembly is adapted to ride on the rug or floor or other surface to be cleaned. At
5067584 Low cost replaceable type sound dampening unit for vacuum cleaning machine November 26, 1991
A physical shape-conformable, disposable, self-sustaining sound dampening unit adapted to attach to the air exhaust of a pair of electric motors to dampen the noise produced by the same, which comprises:a body member formed of a thin imperforate film outer layer and a polymer foam inner
5054158 Scrubbing machine/vacuum cleaner October 8, 1991
A scrubbing machine/vacuum cleaner which is carried by two spaced-apart front wheels and two spaced-apart rear wheels, having affixed to and extending from the front of the machine a cleaning head and brush assembly which is adapted to ride in proximity to, but in spaced-apart relationsh
5012549 Side loading dual pail wet vacuum with flow divider May 7, 1991
In a liquid vacuum extraction system comprising a reservoir for fresh cleaning solution, means including a floor tool for applying said solution to the floor, carpet or other surface to be cleaned, vacuum means for sucking up the solution and contained dirt in an air stream from the
4976003 Cleaning apparatus December 11, 1990
In a vacuum cleaning apparatus of the dry, wet and wet/dry types having a cleaning head assembly, a rotatable brush carried within and spanning said head assembly adapted to loosen and agitate dirt on a surface to be cleaned, means for rotatably driving said brush, a dirt collection zone
4015683 Noise suppressor for vacuum sweeper and the like April 5, 1977
A noise suppressor package attachable to air exhaust tubing comprises:A. annular body means defining an axially extending bore to pass said exhaust, said body means including compressible foam segments which project radially inwardly at said bore, said segments being axially elongated an

  Recently Added Patents
Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system
Field device configuration system
Deposition apparatus and method for manufacturing organic light emitting diode display using the same
Register files for a digital signal processor operating in an interleaved multi-threaded environment
System and method for producing statistically valid assay means and ranges for quality control materials
Digital display devices and digital projectors with expanded color gamut
Display apparatus and control method thereof
  Randomly Featured Patents
Accessory mount having a buffer pad
Method of masking silicide deposition utilizing a photoresist mask
Collimating fresnel lens with diffuser appearance
Compact adjustable pedal system
Synthetic compounds for treatment of inflammation
Method for scale removal and scale inhibition in a well penetrating a subterranean formation
Rock bolt anchor
Mobile satellite user information request system and methods
Photographic material containing magenta dye forming coupler
Fluorinated copolymers for hydrophobic and oleophobic treatment of building materials