Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6050475 | Method and apparatus for controlling downforce during friction stir welding The present invention provides a friction stir welding device for optimizing the depth of a friction stir welding tool in a workpiece. The welding device includes a spindle and a welding tool in rotatable communication with the spindle. The welding device... | 04/18/2000 |
| 5857505 | Root and stump cutter A depth-of-cut bushing is mounted above a cutter-arm array to provide a cutting head mounted on a rotary lawn mower or mower/trimmer. The bushing is shaped so that it acts together with the cutter-arm array to accomplish control of the cutting action. Thi... | 01/12/1999 |
| 5806577 | Bearing guide for router bit A router bit has a bearing guide which does not rotate with the bit. The router bit has a downwardly directed axial tip which engages and rotates in a bearing socket of a bearing guide plate having a straight edge to abut the work being cut. Because the g... | 09/15/1998 |
| 5494089 | Tenon and mortice jig for a router A mortise and tenon jig for a router device includes a base structure; and a mounting member joined to the base structure, and being attachable to a support structure such as a table. It further includes first spaced apart parallel elongated guiding membe... | 02/27/1996 |
| 5144737 | Apparatus for applying and contouring edge strips for plates A compact machine for applying and contour milling or cutting of edge strips or laminates at the narrow sides of plate-shaped workpieces, in a forward cycle and a reverse cycle, with a single operator location and in continuously travelling manner, with a... | 09/08/1992 |
| 5129436 | Apparatus for forming shaped edges An apparatus for forming shaped edges which includes a support table, means for securing components to be shaped to the support table, and shaping means which are mounted upon the table and can be moved relative to the table. The shaping means is guided f... | 07/14/1992 |
| 4991637 | Trimmer apparatus and method A trimmer apparatus and method for utilizing the same is presented which includes a cutting assembly formed from a quadrangular frame which is pivotally joined to a stand and a laminated object is moved therealong on a support in a lineal path whereby the... | 02/12/1991 |
| 4949767 | Apparatus and method for manufacture of wood patch An improved wood patch, in combination with a slot formed in a blemished wooden surface, and apparatus and method of manufacture thereof. The improved wood patch has, where the wooden surface to be repaired is horizontal, three faces: a flat horizontal ex... | 08/21/1990 |
| 4944339 | Procedure for machining wooden articles, installation for carrying out a procedure of this type and clamping bench to be used in an installation of this type Described is a procedure for machining wooden articles in which a plurality of machining operations is carried out on a wooden article in a series of machining operation stations. The wooden articles are transported along the series of machining operation ... | 07/31/1990 |
| 4871002 | Router fixture A router fixture for use with a router for trimming an end of a first molding strip to fit a face of another longitudinal molding strip wherein the fixtrue comprises a longitudinal rear guide member for aligning one edge of the first molding strip thereto... | 10/03/1989 |
| 4865093 | Apparatus and method of producing chair mats and the like An apparatus and method for forming a workpiece or chair mat with cleats on the underside thereof, and with a marginal peripheral area void of cleats, and for trimming the edge of a generally planar workpiece. A rotatable work table is provided for positi... | 09/12/1989 |
| 4733997 | Method of producing chair mats and the like involving edge trimming An apparatus and method for forming a workpiece or chair mat with cleats on the underside thereof, and with a marginal peripheral area void of cleats, and for trimming the edge of a generally planar workpiece. A rotatable work table is provided for positi... | 03/29/1988 |
| 4708182 | Reedmaking system, methodology, and component tools A reedmaking system is disclosed that includes a device for thickness sizing by sliding a cane segment along a guide surface past a cutting edge that is spaced apart from the guide surface a distance slightly greater than the thickness of a conventional f... | 11/24/1987 |
| 4669515 | Apparatus for manufacturing musician's reed assemblies A profiling apparatus for manufacturing musicians' reed assemblies to individual preference includes a rotating drum, to which is attached reed cane material, and a profiling blade for shaping the reed along with a supporting base and sides. The blade is ... | 06/02/1987 |
| 4572257 | Apparatus for profiling reeds for double-reed musical instruments A hand-operated precision profiling tool for use in fabricating double-reed mouthpieces for double-reed musical instruments employs a reed support that is rotatably mounted on a base adjacent a manually-operated cutting assembly. The reed support holds a ... | 02/25/1986 |
| 4387751 | Automatic fence picket pointing machine An elongated upright open framework defines a vertical workpiece passageway intermediate the frame sides and ends open toward one end of the frame bottom portion for horizontally receiving workpieces from a laterally disposed feed conveyor. The frame supp... | 06/14/1983 |
| 4273170 | Precision reed trimming machine An apparatus trims woodwind instrument reed material for use in bassoons and the like in a precise and efficient manner. A cylindroid section of reed material is attached to the apparatus for rotation about its longitudinal axis. A cam, journalled in para... | 06/16/1981 |
| 4230163 | Log-planing machine Apparatus for surface cutting logs to provide a finished surface corresponding to the natural surface contour of the log or to impart a predetermined distinctive surface contour thereto and a method of effecting such surface contouring; said apparatus com... | 10/28/1980 |
| 4174007 | Machine for the production of shaped parts Machine for fabricating shaped parts, such as chair legs in particular, into which the parts to be shaped are positioned by means of a suitable loader. The parts are moved along a substantially straight path and movable tools are movable at right angles t... | 11/13/1979 |
| 4145814 | Cam tracker with slidable cam follower A cam tracker including a master cam with a cam surface thereon engaged by a driven master cam follower contacting the master cam surface and a control cam with a cam surface thereon spaced axially from the master cam and arranged in opposed relation ther... | 03/27/1979 |
| 4046180 | Automatic control apparatus for waney edge forming machines Control apparatus including first and second hydraulic cylinders hydraulically interconnected in parallel. Cam operated means for reciprocating the piston in the first cylinder, this causing relative movement between the second cylinder and the piston the... | 09/06/1977 |
| 3957095 | Rough hewn bench plane attachment The rough hewn bench plane attachment of the present invention allows a standard bench plane to be converted into a hewing tool that is able to create hewn lumber similar in shape and design to hand-hewn lumber. The attachment incorporates a chassis assem... | 05/18/1976 |
