Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7337812 | Multi-function adjustable router base An adjustable router base suitable for attachment to conventional manual routers. In one configuration, the router base permits easy and accurate adjustment of the router bit relative to a variety of fixed guiding edges (e.g., the edge of a workpiece or a straight e... | 03/04/2008 |
| 7290574 | Power tool support fixture A support fixture for a hand-held power tool includes a base plate and a guide plate assembly supported for movement relative to the base plate to bring the working end of the power tool into contact with a workpiece on which the base plate is supported. The guide p... | 11/06/2007 |
| 7281887 | Router plunge depth adjustment mechanism A mechanism and method for providing base end plunge router depth adjustment, such as when a router is utilized with a router table. The apparatus and method of the present invention permits accurate and efficient depth adjustment when utilizing a router with a rout... | 10/16/2007 |
| 7273080 | Power tool support fixture A support fixture for a hand-held power tool includes a base plate and a guide plate assembly supported for movement relative to the base plate to bring the working end of the power tool into contact with a workpiece on which the base plate is supported. The guide p... | 09/25/2007 |
| 7261132 | Base plate circular cutter A jig 10 includes a base plate 12 adapted to be secured to a router and is capable of forming circles, ovals, of the like as well as the traditional router functions. The base plate 12 includes a tip aperture 14 sized and shaped to accept... | 08/28/2007 |
| 7249619 | Sawing device having an adjustable profile A device for adjusting a sawing device's width, wherein the sawing device comprises at least two circular blades 10, 12, facing each other and adjacently positioned, and a fastener 44 adapted to assemble the blades together. The device for adjusting th... | 07/31/2007 |
| 7232280 | Grout guide attachment A guide attachment for a rotary hand tool is disclosed that comprises a housing, an adapter and a removable base. The attachment is configured to remove grout from between adjacent tiles, such as floor or wall tiles. The housing of the preferred embodiment is config... | 06/19/2007 |
| 7089978 | Tool attachment system and router attachment and method incorporating same The present invention is directed toward a quick attach and detach mechanism for a tool attachment such as a router attachment for a router. The attachment system includes a mounting adapter which may be integrally formed with the router housing or attached to the r... | 08/15/2006 |
| 7082656 | Pipe beveling system A tool for beveling the end of a pipe is comprised of a hollow, tubular body having a central, longitudinal axis of rotation, an inboard coupling end, and an opposite outboard working end. A plurality of longitudinally spaced, transversely directed latching pin bore... | 08/01/2006 |
| 7024779 | Power saw A power saw includes a body (36) housing a motor (24). The motor drives a reciprocal shaft (2) on which a blade (12) is mounted. The body is coupled to a pivotable sole plate (48,50) which is held relative to the body (36) i... | 04/11/2006 |
| 6755597 | Electric tool comprising a universal mounting for tool attachments The invention relates to an electric power tool with a housing, in which a drive mechanism is received; the electric power tool includes a shaft, with a chuck (20) received in it, for receiving a tool insert (19). The chuck (20) is surrounded by... | 06/29/2004 |
| 6752572 | Circle cutting accessory for a powered rotary hand tool A circle cutting accessory for use with a generally cylindrical powered rotary hand tool with an output shaft at one end thereof, the tool having a second accessory attached to the one end, with the second accessory having at its distal end an outwardly extending fl... | 06/22/2004 |
| 6742558 | Router holding device A holding device for holding a tool includes a holding block having a central opening formed from a stack of laminated members secured together. The block includes holes extending away from the central opening. A pair of support plates are secured to the block and a... | 06/01/2004 |
| 6655428 | Dowel hole & slot cutter A dowel hole and slot cutter comprise a motor having a base slidably mounted on a track and a cylindrical cutting bit mounted at one end of the motor and extending outwardly therefrom. A support includes a pair of arms with one arm extending upwardly from... | 12/02/2003 |
| 6622762 | Electric hand tool with function-enhancing accessories The invention relates to an electric hand tool (6) with an electric motor contained in a housing, which drives a chip-removing tool (8). The mounting section (14) of a mounting rail (1) is mounted in a detent locking fashion onto the mounting base (3) of ... | 09/23/2003 |
| 6585018 | Linear guide for shaping tools First and second guide plates are engaged for linear sliding between them by a channel and rib engagement system. A grooving tool is carried by the plate associated with the rib, and the rib is in axial alignment with the tool head, such that the tool hea... | 07/01/2003 |
| 6539992 | Radial overarm router A radial overarm router is disclosed. The radial overarm router includes a machine base with a work surface, a vertical column, a bearing housing, a slide assembly, and a carriage subassembly. The bearing housing is mounted to, and may rotate about, the v... | 04/01/2003 |
| 6510878 | Router baseplate assembly precision aligner and guide An attachable baseplate for a highspeed router which can be used with router in an upright handheld position, or in an inverted position with router suspended by same baseplate in a router table. Front edge of baseplate has cutout portion for sliding enga... | 01/28/2003 |
| 6505659 | Tool support A support mechanism for a router comprises a plate having top and bottom sides and an opening therethrough, and a carriage supported in suspension beneath the plate for supporting a router coaxial with the opening. A pair of guide posts slidably support t... | 01/14/2003 |
| 6382276 | Router table adapter base plate The invention relates to a slotless router base plate used for mounting routers by a majority of manufacturers to a router table. A router is attached to a baseplate, and then this router-baseplate assembly is attached to a router table. Numerous hole gro... | 05/07/2002 |
| 6374878 | Portable fixture for woodworking tools A multipurpose, portable fixture for hand held woodworking power tools is described. The portable fixture of the present invention allows for controlled multidirectional operations with the woodworking tools on a workpiece. The woodworking tool may be tip... | 04/23/2002 |
| 6223794 | Woodworking station A woodworking station is provided, in which cutting heads and cutting bits, e.g. routers, small-bodied rotary tools, plunge routers, and others, are either permanently or interchangeably positioned with respect to a tiltable and rotatable cutting table, s... | 05/01/2001 |
| 6145556 | Router Guide A router guide is disclosed which is used to cut grooves of varying widths with a router bit of fixed size. The router guide comprises a base plate, having a guide edge, a depression, and a first hole; and a rotating plate, set into the depression in the ... | 11/14/2000 |
| 6131626 | Power tool mounting jig A jig for fastening to a hand-held power tool such as a router, effectively converting the tool to a bench mount type tool. The jig comprises a mount plate consisting of first and second separable halves that join to clamp the tool within an opening withi... | 10/17/2000 |
| 6070626 | Router attachment A three-in-one router accessory tool is provided. A router stabilizer base, fixed fence and floating fence can be used in various combinations to enhance the capabilities of the router. The router attachment aids the operator in finishing or smoothing woo... | 06/06/2000 |
| 6016854 | Woodworking apparatus for making curved components A woodworking apparatus with a base for retaining a work piece and a bridge for mounting a tool. The bridge is pivotally mounted to the base by two arms and is adjustable towards the top, side and bottom faces of the work piece. Since the bridge, and henc... | 01/25/2000 |
| 5983968 | Router base adapter unit for small templates An apparatus for use with a portable router, a small template, and a template guide to rout virtually any shape onto workpieces that would normally be considered too small for standard portable routers to handle. The apparatus comprises a main body for su... | 11/16/1999 |
| 5971044 | Tool with parallel corners for splitting wood A wood-splitting tool includes at least one system with n parallel elemental wedges (3a, 3b, 3c, . . . 3n) which in succession are given a movement for penetrating the wood. The system for actuating the wedges can be a hydraulic, chain-type, connecting ro... | 10/26/1999 |
| 5878800 | Rectangular opening box cutting apparatus The traditional method of carving out an electrical outlet box opening in a log wall consists of chiselling after a series of closely spaced holes are drilled in the log. It is a time consuming and difficult undertaking. An apparatus for quickly and easil... | 03/09/1999 |
| 5778950 | Planer attachment A support for a number of portable machine tools, such as planers, has a planer mounting member with an aperture to provide access to the workpiece for the tool bit of each tool. The tools are releasably secured to the mounting member and can be retained ... | 07/14/1998 |
| 5778949 | Adjustable router An adjustable router comprised of a lower track having an aperture formed therethrough. The aperture allows the elongated lower track to be pivotally secured to a board by a nail. One of two side surfaces of the lower track has an indicating arrow thereon... | 07/14/1998 |
| 5755293 | Drill/saw apparatus A compact drill attachment or device for converting rotary drill motion to reciprocating saw action and adapted to be used in conjunction with cordless, electric and pneumatic hand held drills. A practical and extremely versatile tool to accomplish sawing... | 05/26/1998 |
| 5743686 | Pattern sizing tool A pattern sizing tool for use as a milling device for removing a portion of a surface of a stiff material to leave a desired thickness of material and is particularly useful for milling a hard plastic coping like that produced in a tooth replacement proce... | 04/28/1998 |
| 5685675 | Offset router guide assembly An offset router guide assembly for guiding the movement of a router around an outer edge of a structure having corners during rough cutting of a covering material overlying the structure to provide a predetermined overlap beyond the outer edge of the str... | 11/11/1997 |
| 5662440 | Router attachment A router attachment is provided for converting a small hand-held rotary cutting tool into a miniature router. The attachment has a base having a planar lower surface, a central aperture, an upright column and a handle. A tool holder slidably mounted on th... | 09/02/1997 |
| 5607265 | Reciprocating attachment for hand drills A device to change the rotation of a shaft such as in an electric hand drill to the reciprocating motion necessary to power a saw blade. The reciprocating attachment has a grooved shaft and saw blade holder connected by a bearing all of which are containe... | 03/04/1997 |
| 5595250 | Drill accessory The drill attachment is a cordless, electric or pneumatic drill device having three (3) flush cut features which enables user to saw in a reciprocating action. A compact metal enclosure has steel bevel gears together to generate perpetual motion onto an e... | 01/21/1997 |
| 5566768 | Drill attachment A cordless, electric or pneumatic drill device which enables user to saw in a reciprocating action. A compact metal enclosure having steel helical and worm gears together with eccentric peg to drive arm to blade, the rotation of the drill enters the tool ... | 10/22/1996 |
| 5515611 | Router guide A guide for attaching to a router to form arcuate cuts in a workpiece. The router guide has a circular mounting plate which replaces a lower plate of a router. The guide has an elongated arm extending from the mounting plate with a slot extending along th... | 05/14/1996 |
| 5452751 | Multi-purpose router baseplate A multi-purpose router baseplate accessory is configured to perform eight different woodworking tasks. The accessory includes a rectangular rigid transparent plate with a pair of handles, at least one of which is readily removable, and two separate mounti... | 09/26/1995 |
