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 |
| 6725891 | Machine for profile working of front surfaces on oblong wood workpieces Machine for profile working of front surfaces on oblong wood workpieces resolves the problem of simple, accurate and fluent or continued working of workpieces front surfaces of various lengths and intersections, and the machine is of a compact construction. It is ch... | 04/27/2004 |
| 6240988 | Process and device for production of octagonal or polygonal beams To make the usable wood volume of the tree trunks as large as possible, octagonal or dodecagonal dressed timbers are proposed from which then boards or beams with inclined edges are cut. To produce octagonal or dodecagonal dressed timbers, in a first mach... | 06/05/2001 |
| 5950517 | Sawmill carriage log turner This invention attaches to a sawmill carriage, enabling an operator to turn a log carried by the sawmill carriage without having to return the sawmill carriage to a fixed location. The invention includes a log turning hook with positioning guide bar that ... | 09/14/1999 |
| 5806401 | Satellite sawmill with adjustable saws and automatic sawbolt centering device A sawmill for milling a length of sawbolt includes a frame and a plurality of saws movably mounted to the frame. The plurality of saws include bandsaws, edging saws, and chain saws for making various cuts necessary in the milling process. A saw positionin... | 09/15/1998 |
| 5135037 | End-dogging log carriage An end-dogging log carriage including a first dog assembly with a first dog member rotatably mounted thereon and a second dog assembly with a second dog member rotatably mounted thereon. A log is supported solely by the first and second dog members engagi... | 08/04/1992 |
| 4606387 | Machine and method for trimming a stack of veneers In a method and assembly for trimming a stack of veneer sheets, both lengthwise and transverse cutting lines are determined in advance by means of a director light projecting a line. The position data of the determined line are processed by a computer to ... | 08/19/1986 |
| 4130048 | Carpet sample beveling apparatus and method Pre-cut square carpet samples are placed edgewise on the first of a stepped series of pairs of sample conveyor belts, the belts of each pair being separated to accommodate between them a power-operated beveler. An inclined sheet metal backing plate is pro... | 12/19/1978 |
| 4120333 | Method and apparatus for trimming timber In a method of trimming timber pieces, in which the pieces are cross-cut at one end and thereafter are advanced to a turner, the invention includes the step of applying to each piece, prior to arrival at the turner, a plurality of marks which are registra... | 10/17/1978 |
