Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7351132 | Flap wheel, in particular flap wheel for satin finishing systems for pipes or for sheet metal and method of producing the same A flap wheel (1) for satin finishing systems for pipes or for sheet metal, includes a plurality of radial flaps (2) fixed to the hub (3) of the flap wheel (1) by coupling elements integral with the hub (3) of the flap wheel (1 | 04/01/2008 |
| 7261622 | Multiple cutting edged sanding wheel An improved sanding wheel configured to rotate axially for sanding or polishing milled contours that will provide sharp edges and corners in the workpiece. The preferred sanding wheel has a cylindrical body with a plurality of segments extending radially from the bo... | 08/28/2007 |
| 7207876 | Flap wheel and method A flap wheel includes a hub with axially extending slots for receiving discrete packs, each pack including a clip receivable in the slot with walls projecting beyond the slot, and end caps fitting on the ends of the hub and including fingers interlaced with the ends... | 04/24/2007 |
| 7169027 | Cylindric drum with replaceable grinding elements A cylindrical drum has at its circumferential edge a number of recesses, each adapted for accommodating a replaceable grinding element including a retainer in which is mounted a sandpaper, support brushes and/or retainer brushes. The recesses in the cylindrical drum... | 01/30/2007 |
| 7056201 | Cylindric drum with sanding elements The invention concerns a cylindric drum for a sanding/polishing tool which in its drum surface is provided with a number of undercut axial grooves for mounting one or more axially displaceable sanding elements, where an annular groove has been provided either in the... | 06/06/2006 |
| 6808446 | Abrasive flap disc The invention relates to abrasive flap discs which are used for a variety of finishing, grinding and polishing operations, particularly on welded fabrications. The present invention provides an abrasive flap disc (20) comprising a backing plate (11), a... | 10/26/2004 |
| 6592442 | Flap wheel A flap wheel includes an aluminum hub with outwardly opening peripheral slots. Flap clips also made of aluminum each holding a bundle of flaps fit snugly in the slots. The slots and clips include an elongated socket and knob construction. The socket of th... | 07/15/2003 |
| 6422932 | Integrally molded brush and method for making the same An integrally molded brush. A preferred embodiment of the integrally molded brush includes a) a generally planar hub having an outer periphery, where the hub has a thickness of at least 0.05 inches; and b) a plurality of bristles extending from the outer ... | 07/23/2002 |
| 6251002 | Surface treating articles and method of making same Surface treating articles and methods for the manufacture of such articles are provided. The articles of the invention comprise a rotatable core; a plurality of surface treating segments, the segments having first ends adjacent the core and second ends op... | 06/26/2001 |
| 5996167 | Surface treating articles and method of making same Surface treating articles and methods for the manufacture of such articles are provided. The articles of the invention comprise a rotatable core; a plurality of surface treating segments, the segments having first ends adjacent the core and second ends op... | 12/07/1999 |
| 5951389 | Drive system for small diameter abrasive discs A drive system for engaging a small diameter abrasive disc with a power tool. The drive system includes an arbor which is adapted to engage the power tool. The arbor includes a shaft portion formed on one end and external threads formed on the other end. ... | 09/14/1999 |
| 5871399 | Flap wheel In one embodiment, a support member on an abrasive wheel has (a) an annular surface which fixedly supports (as by epoxy) a plurality of flaps in a partially overlapping relationship between successive flaps and (b) a central hole for receiving a mandrel w... | 02/16/1999 |
| 5709591 | Unitary molded honing tool An injection molded disposable honing tool is made by an injection molding process. The tool has an elongated rectangular base from which projects an elongated section which may be somewhat smaller. The elongated section terminates in a working face. The ... | 01/20/1998 |
| 5554068 | Abrasive flap brush and method and apparatus for making same An abrasive flap brush including a central core, a layer of adhesive disposed on the peripheral surface of the core by a coater, and a plurality of abrasive flaps adhered to the core by the adhesive. The adhesive is uniformly distributed around the core b... | 09/10/1996 |
| 5412910 | Wet abrasive blasting method and apparatus An abrasive feed system is shown in FIG. 3 in which pressurized air from air compressor (10A) is cooled and dried by heat exchanger (123A), water separator (125A) and chemical air dryer (127A) for delivery to a differential pressure regulator (104A) and a... | 05/09/1995 |
| 4872292 | Flap wheel Abrasive particles are adhered on a first surface of a backing member to define a flap. These particles are removed from support portions of a plurality of flaps. The flaps are stacked and compressed so that the inner ends of the support surfaces on conti... | 10/10/1989 |
| 4835913 | Deburring apparatus An improved deburring brush is presented which is useful in processing aerospace parts of considerable length and surface complexity. The brush includes a cylindrical hub for providing support during use. A multiplicity of brush elements of the channel st... | 06/06/1989 |
| 4572187 | Abrasion device A device suitable for use in the surgical procedure of dermabrasion comprising a rotary hub and a plurality of flexible strips each of which has a single abrasive surface, the strips being located with respect to the hub at or adjacent ends or edges of th... | 02/25/1986 |
| 4561214 | Abrading tool An abrading tool for any grinding, lapping, polishing or burnishing purpose (e.g. dental applications) has a rotary holder whose shank can be rotated (e.g. in a chuck connected to a motor) and a plurality of angularly equispaced elongate pieces projecting... | 12/31/1985 |
| 4258509 | Flap-type rotary abrasive device A flap-type rotary abrasive device comprising an annular array of abrasive leaves having smooth opposite side edges, and a method of fabricating the same. More particularly, a plurality of leaves of flexible material, each leaf having abrasive particles b... | 03/31/1981 |
| 4229912 | Take-apart convertible rotary tool A pair of spaced coaxial body disks of substantial diameter are spaced apart by at least the length of an axial hub fixedly mounted on one of the disks and projecting toward the other disk, the hub having a threaded bore opening through its end adjacent t... | 10/28/1980 |
| 4133146 | Rotary abrasive tool A rotary mandrel which can directly engage sandpaper or other wearing material, to eliminate the need for intermediate devices to couple the mandrel to the sandpaper. The mandrel is constructed with slots that closely receive the edges of the sandpaper to... | 01/09/1979 |
| 4090333 | Flexible grinding wheel A flexible grinding wheel, including, a core member having a central opening and a flange portion at one end, a shaft member disposed within the central opening and extending from the core member for supporting the core member for rotation, a plurality of... | 05/23/1978 |
