Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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.
| Number | Title | Issue Date |
| 6932684 | Reciprocal blade lapping machine A reciprocal blade lapping machine (20) is taught that is used for sharpening cutting and shearing blades. The lapping machine consists a convex lap plate (32) mounted on an enclosure (22) rotated by an electric motor (34) connected to a ... | 08/23/2005 |
| 6640795 | Dresser, polishing apparatus and method for producing an article A polishing apparatus comprise a lower surface plate rotatably provided and having a polishing surface for polishing an object, and an upper surface plate for pressing the object against the lower surface plate, wherein the polishing surface can be dresse... | 11/04/2003 |
| 5538460 | Apparatus for grinding hard disk substrates An apparatus for grinding hard disk substrates includes a dressing unit essentially radially movable across the faces of rotating of grinding wheels for simultaneously dressing one or both of the two confronting surfaces thereof. The apparatus thus constr... | 07/23/1996 |
| 5472371 | Method and apparatus for truing and trued grinding tool By grinding the grinding surface of a diamond grinding tool which is formed in a predetermined shape by securing diamond abrasive grains by bond circularly or flat with high accuracy by the processing type truing method, uniformly dressing the above bond ... | 12/05/1995 |
| 5285597 | Method and arrangement for subdividing semiconductor bars into semiconductor wafers A device for subdividing semiconductor bars into wafers comprises a grinding tool having two concentrically arranged grinding discs. A rough grinding disc is arranged inside of an outer smooth polishing grinding disc. The grinding tool grinds a lower face... | 02/15/1994 |
| 4984390 | Grinding disc dressing apparatus A grinding disc dressing apparatus for dressing an active grinding side or surface of a grinding disc of a surface grinding machine includes feed means for moving a dressing roll between an outer periphery of the grinding disc and the central portion of t... | 01/15/1991 |
| 4947598 | Method for grinding the surface of a semiconductor wafer A dresser made of bonded alundum-type abrasive is ground by a rotating blade made of bonded super abrasive to dress the blade. The surface of a semiconductor wafer is ground by the rotating dressed blade to convert it into a matte-finished surface substan... | 08/14/1990 |
| 4875460 | Grinding wheel dressing apparatus There is provided an improvement in a grinding wheel dressing apparatus of the type presenting opposing cutting tools to the side faces of the grinding wheel. A base supports dual towers having slide blocks carrying dressing tools mounted for controlled r... | 10/24/1989 |
| 4784108 | Grinding wheel dressing apparatus An apparatus for dressing a grinding wheel which utilizes a pair of cutting tools which are mounted in an in-line facing relationship with the grinding wheel to be located between the tools. These tools are to be moved to simultaneously engage the side wa... | 11/15/1988 |
| 4720938 | Dressing fixture A fixture for dressing the polishing surfaces of a platen to maintain it in a planar condition, including a flexible carrier which is adapted to be rotated independently of the rotation of the surface to be dressed, with the carrier providing an opening f... | 01/26/1988 |
| 4640059 | Apparatus for grinding the knives in tobacco cutting machines A tobacco shredding machine wherein the cutting edges of orbiting shredding knives are sharpened by the undulate annular surface of a grinding wheel which is reciprocated forwardly and backwards in parallelism with the axis of the holder for the knives an... | 02/03/1987 |
| 4494522 | Size dresser for grinding wheels The present invention is a size dressing apparatus (10) particularly adapted for sizing rotary grind wheels. The apparatus includes a base block (12) of generally rectangular solid shape and formed to include a vertical transverse gap (14) or slot and a c... | 01/22/1985 |
| 4476847 | Adjustable double disc grinder dresser An adjustable double disc grinder dresser comprising a dresser arm mounted on a shaft, a bracket including spaced opposing walls, one of the walls supporting one end of the shaft for pivotal displacement about its axis and for limited pivotal displacement... | 10/16/1984 |
| 4208844 | Guard device with dressing apparatus for grinding wheel A guard device with a dressing apparatus for a grinding wheel. A front cover member is pivotably supported on a guard body by a hinge shaft. A pair of leg portions are extended from the lower end of the front cover member and carry a pair of dressing tool... | 06/24/1980 |
| 4208842 | Dual surface lapping machine This specification discloses a Dual Surface Lapping Machine having at least one fixed lower spindle and an upper spindle carried by an A-frame mounted on guide ways. The spindles and guide ways are parallel to one another to permit accurate lapping of pie... | 06/24/1980 |
