Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6901855 | Device for separating useful units of a printed sheet Faulty useful units printed on a sheet of useful units are separated from the acceptable useful units. A first cutting device cuts the sheet into a plurality of longitudinal strips, each of which contains several of the useful units. A quality control device detects... | 06/07/2005 |
| 5186101 | Ink replenishing system The ink pad replenishing system includes an ink tray containing an ink pad, inlet means for receiving ink and outlet means for providing drainage of excess ink from the ink tray, and an ink reservoir. A first pump is comprised of a deformable and resilien... | 02/16/1993 |
| 5176945 | Transfer sheet for use in printing operations and having compensation for dimensional instability A transfer sheet for use in printing of patterns such as alphanumeric characters onto a keyboard or other workpiece from the transfer sheet where the patterns are originally formed has a realignment area in which a plurality of slits are formed. The slits... | 01/05/1993 |
| 4697517 | Inking apparatus for a mailing machine In a mailing machine, having a removable postage meter with a rotatable printing drum and printing die there is an inking apparatus included with the mailing machine. The inking apparatus has a ink supply cartridge which engages an ink transfer roller mou... | 10/06/1987 |
| 4694747 | Print head operating mechanism Travel of a printing head between ink-receiving and marking positions is guided along an arcuate path by a fluid power piston device having a cylinder pivotally mounted at its forward end on the frame of the printing apparatus. The longitudinal axis of th... | 09/22/1987 |
| 4615266 | Printing apparatus employing deformable transfer pad A pad transfer printing machine is disclosed in which the engraved printing plate is suspended face-down at an elevated position above the surface to be printed, and is horizontally movable between a retracted position and a pad contacting position. The p... | 10/07/1986 |
| 4440083 | Disposable inking cartridge A disposable inking cartridge in combination with a housing for transferring ink to a secondary surface, including a housing having a pair of sidewalls, each of the sidewalls having a locating guide, wherein the locating guide includes at its trailing end... | 04/03/1984 |
| 4070967 | Stamp design kit An arts and crafts type stamp kit including a frame having two generally elongated, diverging, horizontal leg portions for universally mounting an elevated stamp support arm generally at the juncture of the leg portions. An ink stamp is adjustably mounted... | 01/31/1978 |
| 4052938 | Printing apparatus There is disclosed printing apparatus having a pivotally mounted print head which cooperates with a platen, a cam shaft to which a cam is secured for actuating the print head and to which another cam is secured for driving an operating lever. The cam mean... | 10/11/1977 |
| 4004511 | Printing apparatus An apparatus for applying markings to packed articles transported by a conveyor is provided with a stamp, which is laterally expulsed when an article passes by. The stamp comprises a holder and a printing head connected with the holder by at least one spr... | 01/25/1977 |
