Quotables
"We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Carl Sagan
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 |
| 7431637 | Saw-setting machine for saw chain It is to provide a saw chain sharpener such that while a saw chain is clamped at both ends by a holding plate, which is supported forward of a handy type electric motor, so as to stabilize its sharpening posture, a grinding tool such as a round rod-shaped grinding t... | 10/07/2008 |
| 7140948 | Machine for machining elongate workpieces provided with cutting teeth, in particular for grinding bandsaw blades A machine for machining bandsaw blades. A machining device, a feed device, a workpiece-fixing device and a workpiece guiding device are mounted to a common central machine block. The machining device has a rotatably driven positionable adjustable grinding wheel with... | 11/28/2006 |
| 7131351 | Device for post-processing, more particularly sharpening, a tool having a plurality of teeth A device for dressing a tool having a plurality of teeth, wherein said device comprises a support surface having guiding elements, said guiding elements having at least two movable positioning elements, said movable positioning elements being adapted to be locked in... | 11/07/2006 |
| 7115027 | Grinding tool for sharpening work pieces A grinding tool for sharpening tools is provided comprising an oscillatory drive the output shaft of which is driven oscillatingly about its longitudinal axis. The grinding tool comprises a holder for mounting a working part which is configured as a grinding plate h... | 10/03/2006 |
| 7114413 | Portable band saw sharpener The portable band saw sharpener includes a frame for receiving a saw blade that is to be sharpened. A hand-operated motor is pivotally mounted to the frame for driving a grinding wheel, which engages the teeth of the saw blade. A hand-operated structure releasably h... | 10/03/2006 |
| 7033254 | Grinding machine for double-sided grinding of saw tooth edges A grinding machine (10) for double-sided grinding of tooth flanks, in particular hard-metal tipped circular saw blades (14) is described. The grinding machine comprises two grinding units (16, 18) each with a grinding body, a first drive to move... | 04/25/2006 |
| 6958004 | Saw grinding apparatus with improved wear plates A saw grinder having improved wear plates for allowing the saw grinder carriage to move without having to overcome the resistance caused by contact of the saw grinder wear plates with the peripheral edge of a saw blade. The wear plates form two separate wear plate a... | 10/25/2005 |
| 6631658 | Saw sharpening machine with pitch pre-measurement and feedback control for saw blade indexing A band saw profiling machine includes an indexing mechanism having a feed finger mechanically linked to a caliper finger for reciprocating movement therewith. The caliper finger is urged toward the feed finger during an indexing movement of the indexing m... | 10/14/2003 |
| 6374703 | Computer-controlled band saw sharpener A computer-controlled band saw sharpener employing electrically powered, X and Y axis drivers, each having a reciprocating element. The X-axis driver actuates a feed finger mechanism, to index the saw in repetitive, stepped fashion, while each tooth is su... | 04/23/2002 |
| 6332375 | Saw blade sharpening machine having independently movable tooth grinding heads A saw blade sharpening machine includes a receiving and positioning chuck assembly for setting a saw blade in a grinding position in a plane corresponding to a main saw blade plane; and a grinding device which has a first and a second grinding head for gr... | 12/25/2001 |
| 6329624 | Measuring device on a machine for machining workpieces with cutting teeth, especially saw blades The machine includes a saddle (26) which is displaceable along a spindle axis (E) and transversely thereof under numerical control. A tool spindle (28) is supported on the saddle (26) so as to be driven in rotation about the spindle axis (E) and adapted t... | 12/11/2001 |
| 6279424 | Machine for machining workpieces with cutting teeth, especially saw blades A tool head (46) in which a tool spindle (52), adapted to be equipped with a disc-shaped tool (100), is supported so as to be driven in rotation about a spindle axis (C), is associated with a workpiece support (82) on which a workpiece (10) can be arrange... | 08/28/2001 |
| 6164161 | Band saw blade sharpener A blade sharpener for band saws used in the lumber and other wood processing industries, is installed on the band saw structure for sharpening the band saw blade periodically as required without need to remove the blade from the saw. The sharpener apparat... | 12/26/2000 |
| 6109137 | Machine for machining workpieces with cutting teeth, in particular saw blades A pivot body (22) mounted on a machine bed (20) so as to be capable of swinging defines a lift axis (D) which extends transversely of its own pivot axis (A) and along which a reciprocating slide (24) is movable. Infeed of a saddle (26) on the reciprocatin... | 08/29/2000 |
| 6006629 | Automatic chain sharpening device mounted on a chain saw A saw chain is automatically sharpened during use by causing top sides of the cutter links to be pressed against a stationary abrasive block when the saw chain is running around a rim type sprocket. The cutting link includes a cutting edge, and a depth ga... | 12/28/1999 |
| 5826465 | Band saw blade manufacturing method A method of and apparatus for handling a band saw for the purposes of effecting manufacturing and/or repair operations upon the band saw characterized by, during such manufacturing and/or repair operations upon the band saw (5), supporting the band saw in... | 10/27/1998 |
| 5816118 | Chain saw sharpening bench A chain saw stabilizing bench is disclosed which permits the sharpening of chain saw cutting teeth under field conditions. The bench consists of an extended planar platform for holding the weight of the saw and an upright holder for securing the saw bar a... | 10/06/1998 |
| 5488884 | Method and apparatus for side-grinding saw blade teeth A grinding apparatus for side grinding the cutting teeth of band saw blades, in which the band saw blade is oriented in a vertical loop. The apparatus is controlled by a programmable controller and includes redundant indexing mechanisms capable of feeding... | 02/06/1996 |
| 5485767 | Saw blade machining system A machine for use in the manufacture of saw blades includes apparatus for performing a plurality of machining operations on the tips of individual teeth of the saw blades. Each tip to be machined is positioned in turn at a point coincident with a horizont... | 01/23/1996 |
| 5471897 | Saw sharpener A sharpener frame is supported relative to a floor and has a front side. A first portion of a band saw is supported at the front side of the frame. A second portion of the band saw is also supported relative to the frame, parallel with the first portion o... | 12/05/1995 |
| 5295418 | Indexing system for a saw regrinding machine An indexing system for a saw regrinding machine includes a rotary shaft on which a circular saw is mounted and an index stop assembly which stops rotation of the blade to position the teeth thereof for a regrinding operation. The stop includes an index fi... | 03/22/1994 |
| 5156071 | Chain saw sharpener with built-up grinding tool A sharpening tool has a flat central portion circular plate to which is affixed circumferential abrasive bead having convex profile and formed of an abrasive grit bonded by epoxy to the plate. The tool is less wide than the spacing between the depth gauge... | 10/20/1992 |
| 5142946 | Sharpener for circular saws A base member has a clamping surface and an arm extending from the base member at an angle. The arm is attached to the base member for pivotal movement and supports a power grinder for grinding a saw blade tooth by pivotal movement of the arm. The base me... | 09/01/1992 |
| 5142947 | Adjustable motor-operated circular saw sharpener A circular saw sharpener comprising a base mounted on a work table at the top, a bracket pivoted thereto at the top which bracket has a L-shaped frame pivoted thereto at the top for holding a motor and a grinding wheel, a guide arrangement mounted on said... | 09/01/1992 |
| 5048236 | Saw blade tooth grinder for saws A device for grinding saw blades, both hand saws and circular saws so that a predetermined tooth profile is obtained, utilizes a grinding head that moves in one plane and moves the saw in a second plane. The device comprises a saw blade mount, an indexing... | 09/17/1991 |
| 5038639 | Saw blade top and face grinder A top and face grinder for a circular saw blade including an indexing apparatus which interposes a stop into the path of the teeth of the saw blade from a position laterally displaced from the plane of the saw blade. This stops rotation of the blade and p... | 08/13/1991 |
| 5033333 | Saw chain grinding machine A disc-shaped grinding wheel has a peripheral grinding edge, and according to one feature of the invention a centered grinding point is used on the grinding wheel for precise and symmetrical sharpening of right and left cutter elements of a saw chain. The... | 07/23/1991 |
| 5031482 | Saw chain grinding machine An adjustable holder for a chisel-bit type saw chain is arranged to hold cutter elements of the chain adjacent the grinding edge of a grinding wheel for sharpening the cutter elements wherein the angle of grind can be adjusted. For this purpose, the chain... | 07/16/1991 |
| 5024026 | Segmental grinding wheel Segmental grinding wheel for forming the tip of intersecting surfaces on tools includes an array of peripherally extending and circumferentially, spaced segments. Each segment includes first and second grit-coated angularly oriented grinding surfaces. Ano... | 06/18/1991 |
| 5016497 | Method and apparatus for grinding teeth in a steel strip to form saws Saws are made by grinding teeth in an edge of a continuously advanced steel strip. The grinding is performed by abrasive members mounted on a frame which is oscillated in an endless path within a plane parallel to a plane of the strip so that the abrasive... | 05/21/1991 |
| 5000061 | Dressing apparatus for grinding wheels A base is arranged to be secured in a fixed position adjacent a grinding wheel of the type having a pair of grinding surfaces extending in different planes. A slide arm is mounted in the base and carries a single grinding wheel dressing tool with two posi... | 03/19/1991 |
| 4966055 | Chain saw sharpening device A device for sharpening chain saw cutter teeth includes a rigid disc member which has an abrasive coating deposited on its outer circumferential edge. The abrasive coating has a circumferential outer grinding surface which, when viewed in cross-section on... | 10/30/1990 |
| 4903553 | Dressing apparatus for grinding wheels A pair of grinding wheel dressing tools are mounted on a common support slidably mounted in a base secured in a fixed position adjacent a grinding wheel. The support has adjustment for repositioning it as the grinding wheel wears and requires dressing. Th... | 02/27/1990 |
| 4843769 | Stump grinder tooth sharpening apparatus Apparatus for sharpening teeth on a stump grinding machine which includes a clamp for mounting a grinder directly on a cutting tooth. The clamp has jaws having rotatably mounted appendages which clamp directly on the back and the front face of a cutting t... | 07/04/1989 |
| 4843718 | Automatic sharpener for chain saw An automatic sharpener for a chain saw in which a securing mechanism is released by a grip portion thereof, and a sleeve-like member is moved forward with respect to the main body by urging force of a spring so that the grindstone thereof can be automatic... | 07/04/1989 |
| 4754667 | Machining cutter tools A method of and apparatus for machining a blade (1) having a plurality of cutting teeth positions with each such position mounting a material cutting tip (7) having faces (13, 16) which co-operate to provide the cutting edge(s) or cutting profile (19) of ... | 07/05/1988 |
| 4750387 | System and method for grinding the saw teeth of a circular saw blade An automatic dual side grinder is disclosed. A circular saw blade is supported and rotated in angular increments for grinding of each saw tooth. A pair of radially-opposed, parallel grinding wheels are reciprocated, by a crank assembly radially of the bla... | 06/14/1988 |
| 4711142 | Saw sharpening apparatus A hand-held, motor driven apparatus for sharpening saw blades wherein a small grinding drum having its axis transverse to the saw blade provides a hollow ground sharpening action and the body of the apparatus extends over each side of the grinding drum to... | 12/08/1987 |
| 4677881 | Chain saw sharpener A chain saw sharpening device having a generally U-shaped frame defined by an upper web and first and second parallel side walls for overlying the chain and the guide bar of the chain saw. The frame includes an open area near the center of the upper web d... | 07/07/1987 |
| 4677882 | Feeding means for intermittently rotating a circular saw blade of great pitch A saw blade supported on a slip-on arbor has a pitch which is greater than the maximum possible stroke of the feeding means. For this reason each individual tooth of the saw blade is pushed in two successive forward strokes, first into an intermediate pos... | 07/07/1987 |
