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 |
| 7112018 | Automatic position-locking tool carrier apparatus and method An automatic position-locking tool carrier apparatus and method include a carriage that rides on a first rail and a second rail translatably connected to the carriage perpendicular to the first rail. Pinion gears that engage with the two rails are attached to the ca... | 09/26/2006 |
| 6694628 | Cutting machine The cutting machine includes a sheet-driving unit, a detection sensor, and a cutter. The machine operates the sheet-driving unit and the cutter based on given input data to cut the sheet. The cutting machine calculates a length of sheet necessary to perfo... | 02/24/2004 |
| 6619175 | V-cutter for an LCD light guide panel A V-cutter for use in forming V-shaped grooves (3) on a light guide panel (1) of the backlight unit for a liquid crystal display (LCD) is disclosed. The V-cutter may include a Z-axis lift piece (7) and a W-axis lift piece (8), each of which has a pin kit ... | 09/16/2003 |
| 6006436 | Sheet length counter for plotter An engineering drawing plotter includes a feed roller for moving paper lengthwise bidirectionally with respect to one or more plotting pens. A counter installed on the plotter includes a pulse switch for measuring absolute lengthwise paper displacement, a... | 12/28/1999 |
| 5182861 | Sheet-driven type automatic drafting machine A sheet-driven type automatic drafting machine has a drive roller or rollers and a rotary drive mechanism connected to the drive roller or rollers, a Y-axis rail extending in the Y-axis direction above the drive roller or rollers, a line-drafting head mov... | 02/02/1993 |
| 5063676 | Cable drive system for carriage movement and method of use A positioning system for use in a plotter having a reverse axis arrangement moves the Y carriage along two generally parallel spaced apart guides and comprises a first and second cable each having equal lenghts and forming a loop respectively attached to ... | 11/12/1991 |
| 4734987 | Moving node wave isolator for drafting plotters A wave isolator (18) is provided for large format drafting plotters (10) for preventing waves in the drafting medium (16) from traveling up the platen (14) and adversely affecting the pen (20) and its operation and reducing acceleration related vertical s... | 04/05/1988 |
| 4665619 | Method and apparatus for working on sheet material A method and apparatus for working on sheet material utilizes a table having two spaced coplanar lips across which sheet material is stretched to be worked on by a tool supported from a movable carriage spanning the table. Clamping units attached to the t... | 05/19/1987 |
| 4547968 | Desktop plotter instrument A plotter instrument for marking on a recording medium utilizes a rotatable pen carousel carrying a plurality of marking pen elements. A carriage drives the pen carousel into engagement with a cam track to produce rotation of the pen carousel and result i... | 10/22/1985 |
| 4531292 | Foodstuffs imaging process and apparatus In an apparatus for reproducing images onto foodstuffs or the like, and the process for performing such operation, a housing includes the various electronic controls for sequencing the operations of the apparatus, a turntable for holding the especially pr... | 07/30/1985 |
| 4099330 | Vibratory drawing device An apparatus for creating designs on a substrate such as a sheet of paper includes a frame with a platen mounted on the top thereof. The platen is loosely mounted for vibratory movement relative to the frame. A drive cam, through a link system, is connect... | 07/11/1978 |
