U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6295668

Maternity Beach Chair

A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 15/230.18 - Working surface dished inwardly or outwardly


Subclass of Class 15 - Brushing, scrubbing, and general cleaning
Definition: Implement which includes a working portion having a work-contacting
No. of patents: 37
Last issue date: 02/21/2012


NumberTitleIssue Date
8117709Buffing system including load absorbing fixture with multiple compression load deflection and replaceable working face
A rotary buffing and finishing system includes a polymeric foam cushioning layer that has a graded compression load deflection which is interposed between a backing plate and a relatively thin performance layer that is removably attached to the foam cushioning layer...
02/21/2012
7328477Dual-mode contour-following mop
A scrubbing implement for cleaning a surface with contours is disclosed. The scrubbing implement includes a resilient base that includes a plurality of resilient fingers, each of which extend radially away from center of the base. A rigid cap comprises an inside upp...
02/12/2008
7310851Cleaning device with disposable cleaning element
A cleaning device has a cleaning element having an axis, an axial inner region and an axial outer region and being formed so that at least the axially outer region is bendable to follow a shape of a surface to be cleaned when pressed against the surface, a holding e...
12/25/2007
6551410Method of cleaning a semiconductor wafer with a cleaning brush assembly having a contractible and expandable arbor
A method of cleaning a semiconductor wafer using a cleaning brush assembly having an arbor with: (1) an expandable member configured to have a non-expanded position and an expanded position, and (2) a cleaning brush, located about the expandable member, h...
04/22/2003
6550091Double-sided wafer edge scrubbing apparatus and method for using the same
A substrate cleaning system incorporating an edge scrubbing roller is disclosed. The system includes a cleaning station having a first brush and a second brush. The second brush is oriented relative to the first brush so as to receive a flat circular subs...
04/22/2003
6331213Brush alignment method
A brush alignment apparatus and method of using the same for aligning a hollow cylindrical brush on a cylindrical roller member comprising first and second ends and an outer surface defining a internal cavity, provided with a plurality of orifices extendi...
12/18/2001
6044512Foam buffing pad and method of manufacture thereof
A rotary foam buffing pad is provided with a concave working face which allows the operator to provide true graduated surface contact in applying polish, buffing or glazing compounds, while containing the polishing compound against centrifugal force which...
04/04/2000
5993560Optical surfaces cleaning devices, compositions and methods
Devices and compositions are provided for cleaning optical surfaces with carbon black. Carbon black may be impregnated on a soft pad, such as chamois leather, to provide a lens cleaning device. The soft pad may be supported on a handle. The soft pad may b...
11/30/1999
5980802Method for treating paint roller covers
A method for treating a roller cover includes the steps of positioning an element with respect to a roller cover and removing a portion of the roller cover with said element to form a pattern on said roller cover. The process for treating roller covers fo...
11/09/1999
5533222Floor and baseboard treatment machine
A floor machine for cleaning a floor and/or wall and/or downward upstanding from the wall, includes at least one disc having a floor cleaning pad covering a lower surface and wall cleaning material projecting from its periphery. The wall cleaning material...
07/09/1996
5339571Tool element subassembly
A tool element subassembly, such as an abrasive disc subassembly, for mounting to the spindle of a grinder. The subassembly includes an abrasive disc, a collar nut and, optionally, a backing flange. The central bore in the abrasive disc as well as the hub...
08/23/1994
5339484Closed end paint roller and method of manufacture thereof
A closed-end roller cover in which the pile fabric on the end, and the portion of the core to which it is secured, is integral with the main body of the cover, and a method of manufacture thereof. The cover is formed by heating the end portion of a fabric...
08/23/1994
5311634Sponge cleaning pad
Disc shaped cleaning pads for use on cleaning apparatus, consisting of a supporting core to which a sponge is affixed. The sponge is a microporous material made from a hydroxylated polymer, the physical properties of which can be modified in the chemical ...
05/17/1994
5287659Tool element subassembly and method of manufacturing same
A tool element subassembly, such as an abrasive disc subassembly, for mounting to the spindle of a grinder. The subassembly includes an abrasive disc, a collar nut and, optionally, a backing flange. The central bore in the abrasive disc as well as the hub...
02/22/1994
5249329Self-centering buffer pad assembly
A self-centering buffer pad assembly is constructed of conventional washable buffer pads releasably attached by hook-and-loop material to a support disk permanently covered with hook material; the replaceable buffer pads are lined with the less expensive ...
10/05/1993
5090084Cleaning roller for surfaces and apparatus for use therewith
A roller for cleaning surfaces includes a handle for holding the roller. A connecting rod is coupled to the handle. A roller cover made at least in part of a material suitable for applying a cleaning solvent to a surface when the roller cover is rolled al...
02/25/1992
5007128Compounding, glazing or polishing pad
A paint finishing pad adapted to be used on a drive assembly including a back up pad and a drive motor for rotating the back up pad. The paint finishing pad includes a layer of open cell polymeric foam having a front surface defined by a plurality of spac...
04/16/1991
4979336Disposable finishing article having an integral mounting hub including an improved metal pressure cap
A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the a...
12/25/1990
4962562Compounding, glazing or polishing pad
A paint finishing pad adapted to be used on a drive assembly including a back up pad and a drive motor for rotating the back up pad. The paint finishing pad includes a layer of open cell polymeric foam having a front surface defined by a plurality of spac...
10/16/1990
4934107Finishing article having an integral mounting hub and improved composite pressure cap
A disposable finishing article for mounting on a rotatable threaded spindle which may be used with a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing a...
06/19/1990
4907313Self centering buffing pad with low temperature tuft bonding adhesive
A buff adapted for self centering engagement with a backup pad comprising a circular body with a first fastener portion on its face surface. The buff includes a stiff flexible backing having a generally planar circular central portion and an annular flang...
03/13/1990
4878316Pressure cap for disposable finishing article
A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the a...
11/07/1989
4809385Floor polishing apparatus
An apparatus for imparting a high gloss to a floor including a frame, a motor mounted on the frame, a drive pad operatively rotated by the motor, a buffing pad positioned beneath the drive pad and rotated at about 2200 RPM thereby, and an adjustable shiel...
03/07/1989
4760670Disposable depressed center grinding wheel having an integral mounting hub
A disposable depressed center grinding wheel for mounting on a rotatable threaded spindle of a power tool. The grinding wheel contains a retaining nut on one side and a backing flange on the other non-removably secured together on the grinding wheel witho...
08/02/1988
4754577Disposable finishing article having an integral mounting hub including improved pressure cap
A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the a...
07/05/1988
4754578Disposable depressed center grinding wheel having an integral mounting hub including a pressure cap
A disposable depressed center grinding wheel for mounting on a rotatable threaded spindle of a power tool. The grinding wheel contains a retaining nut on one side and a backing flange on the other non-removably secured together on the grinding wheel witho...
07/05/1988
4739534High speed floor buffing pad and holder
A high speed floor buffing machine equipped with a pad holder for an X-shaped buffing pad is disclosed. The arms of the pad holder have a wedge-shaped cross section that acts as an air foil to create air currents that flow up between the arms of the buffi...
04/26/1988
4709439Mounting disk for a floor polisher
A floor polisher mounting disk for mounting a polishing pad on a motorized floor polishing machine is provided which is characterized by the ability to readily flex upon encountering a protuberance in a floor such as a door threshold. The mounting disk in...
12/01/1987
4701970High speed floor buffing machine and floor buffing pad
A high speed floor buffing machine equipped with a pad holder for an X-shaped buffing pad is disclosed. The arms of the pad holder have a wedge-shaped cross section that acts as an air foil to create air currents that flow up between the arms of the buffi...
10/27/1987
4689922Buffing pad
A plurality of control ribs are formed on a backing plate of a buffing pad. The buffing pad is releasably connected to a hand-held buffing machine. The control ribs provide increased flexibility toward the outer edge of the pad and provide an air flow pat...
09/01/1987
4607412Reversible buffing pad and method of manufacture
A buffing pad includes hub including screw threads therein for releasably attaching the hub to a drive shaft from either side of the hub. A fusible center disk is attached to the hub and a pair of buffing pads are provided with each having a plurality of ...
08/26/1986
4598440High speed floor buffing machine and floor buffing method
The disclosure relates to an electric buffing machine which is equipped with an X-shaped buffing pad that is mounted to a similarly X-shaped pad holder. The arms of the pad holder have a wedge-shaped cross section that acts as an air foil to create air cu...
07/08/1986
4590635Machine for floor maintenance
A machine for floor maintenance comprising an electric motor in which armature coils are included in a stator and permanent magnets are included in a rotor. The armature coils are disposed substantially radial to the axis of the stator with the axial exte...
05/27/1986
4580308Buffing pad and method of manufacture
A contoured buffing pad includes a buffing disk which is heat-formed by the method of the invention so that a portion thereof proximate an outer edge thereof forms an approximate right angle with the remainder of the buffing disk. Additionally, the buffin...
04/08/1986
4307480Rotating pad support structure for floor buffing machine
A rotating pad support structure for a floor buffing machine adapted to secure and mount in contact with a floor to be buffed and to rotationally drive a flexible circular floor buffing pad. The structure comprises a drive disc which is normally supported...
12/29/1981
4149294Polishing buff
A buffing pad wherein a layer of fabric has tufting material stitched therein and extending outwardly from one side thereof. A layer of adhesive which is flexible after it has set is applied to the surface of the fabric opposite that from which the tuftin...
04/17/1979
3965521Convertible multi-purpose brush assembly
A convertible multi-purpose brush assembly characterized by providing a multiplicity of working surfaces for a variety of tasks and versatility and ease in conversion for various uses. The brush assembly may be constructed for attachment to a home applian...
06/29/1976
 
Sign InRegister
Username  
Password   
forgot password?