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 |
| 7322575 | Device and method for aligning a stack of sheets arranged one above the other The invention relates to a device and a method for aligning at least the front edge of several sheets arranged in a stack, one above the other, whilst maintaining the order of the sheets. Said device comprises a stacking table, one side of which is provided with a f... | 01/29/2008 |
| 7252285 | Method and apparatus for aligning a media sheet An alignment device for aligning a manually loaded media sheet to a printer feed path has at least one registration feature disposed to register the trailing edge of the media sheet to the feed path. By aligning the trailing edge, an orthogonal media sheet is loaded... | 08/07/2007 |
| 7213514 | Extension arm for a sheet-processing printing machine A sheet delivery mechanism for a sheet-fed printing machine which is adapted to reduce changes in the position of sheet material in a stack during a stack changeover operation and which facilitates the formation of a stack with properly aligned edges. The sheet-deli... | 05/08/2007 |
| 7121545 | Independently activatable side pull for lateral alignment of a sheet A device and a method for lateral alignment of a sheet (5, 6) in a sheet processing machine, in which the sheet (5, 6) is movable essentially across its direction of transport (7) into an alignment position (4); a side pull lay device is ... | 10/17/2006 |
| 7117795 | Method and device for correcting the positional deviation of a conveyed item by adjusting the cylinder's angle rotation relative to the conveyed item To correct the position of a conveyed item (12) in a conveyance system (10), the deviation of the conveyed item (12) from its target position is detected. If this deviation reveals that a correction is necessary, a suitable correction profile Pi... | 10/10/2006 |
| 6712353 | Mass and impact energy adaptive compensating converter An object arresting device prevents rebounding effects when an object is decelerated from a high velocity by causing an impact-induced flow of fluid such as ambient air through a lattice membrane to develop vacuum effects and vortex activity while absorbing and diss... | 03/30/2004 |
| 6691999 | Sheet-braking system for a delivery of a sheet-processing machine, and method of operation A sheet-braking system and method of operation for a delivery of a sheet-processing machine, includes a braking belt revolving during operation and undergoing periodic decelerating and accelerating phases. The braking belt further includes a braking stran... | 02/17/2004 |
| 6443443 | Suction belt conveyer for a sheet processing machine A suction belt conveyor for a sheet processing machine includes an operationally revolving endless suction belt having, at an outer side thereof a filigree structure formed by indentations, the suction belt being formed with penetrating bores terminating ... | 09/03/2002 |
| 6176482 | Sheet-guiding suction box A sheet-guiding suction box can be adapted to the size or format of a plurality of sizes of sheets to be guided. This is accomplished by structuring the guide box with a plurality of independently acting suction chambers. A central suction area of the gui... | 01/23/2001 |
| 5162036 | Apparatus for moving apart successive webs of a series of webs having sections in zig-zag formation A continuous web of paper is subdivided into a series of discrete webs of finite length, and successive discrete webs of the series are provided with looped sections in zig-zag formation. Successive discrete webs of the series are moved forwardly and away... | 11/10/1992 |
| 4830355 | Sheet transfer apparatus for rotary printing presses A sheet transfer system on a rotary printing press has an apparatus provided beneath the delivered sheets to slow down the sheets at their trailing end by means of conveyor belts which are guided by drive and deflector rollers, and between which, beneath ... | 05/16/1989 |
| 4824094 | Device for engaging a sheet with maintenance of register and disposed in the feeder plate of a rotary press A suction roll sheet transfer device disposed between a sheet feed table and the front lays of a sheet fed rotary printing press including a first set of suction rolls adapted for oscillating movement between a position substantially in the plane of said ... | 04/25/1989 |
| 4693462 | Sheet delivery apparatus for printing machines The invention relates to a sheet delivery apparatus on printing presses which is fitted with pneumatically operating braking mechanisms and the function of which is to retard and tighten the merging sheet which is to be deposited. The pneumatic braking me... | 09/15/1987 |
| 4534550 | Apparatus for pulling apart flat products, especially printed products arriving in an imbricated product stream By means of a first band or belt conveyor an imbricated product stream or formation, formed by product packs, each composed of two overlying printed products, is inputted to a second band or belt conveyor. The conveying velocity of the second band conveyo... | 08/13/1985 |
| 4466607 | Sheet inverting device A device for inverting a sheet includes an input and output transport means and a sheet receiving tray. Sheet deflectors are provided to deflect portions of a sheet as it leaves the input transport means and moves into the tray. A reversal drive arrangeme... | 08/21/1984 |
| 4273324 | Suction braking apparatus A suction braking apparatus for the braking and overlapping of sheets coming from a duplex crosscutter is provided which has a single suction chamber and can be quickly changed over to accommodate sheets of a different width. The suction chamber is provid... | 06/16/1981 |
| 4225129 | Sheet guidance arrangement in printing-machine outfeed units Grippers pull the leading ends of sheets along a sheet transport path, and a guidance structure facilitates sheet travel. The guidance structure comprises a plurality of longitudinally extending guide bars provided with suction openings, the ribs spaced a... | 09/30/1980 |
| 4060237 | Sheet positioning mechanism for feed table of a sheet-fed printing press A sheet positioning mechanism for the feed table of a sheet-fed printing press which includes a set of releasable front stops and a side guide, with a wiper adjacent the side guide, the wiper having a limited zone of action. The sheets are fed in a straig... | 11/29/1977 |
