Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 4915027 | Hand-held manually operable printing apparatus A manually operable sweeping-type compact printer apparatus includes a key entry unit, a display unit, a memory unit, an encoder and a printer unit which are mounted on a manually manipulatable housing. When the housing is manually moved over a printing m... | 04/10/1990 |
| 4896605 | Method of cut position determination for printing machines A method of cut position determination for printing machines, wherein in order to ensure a synchronous running of the paper webs (P1-P4) to be folded and cut into newspapers (16) on a printing machine for rotary offset printing or rotary letter press prin... | 01/30/1990 |
| 4887530 | Web registration control system A system for generating indicia of registration error between the respective printing units of a web-fed, four-color printing press. An optical line scanner is disposed over a web to generate signals indicative of the brightness level of successive nomina... | 12/19/1989 |
| 4878429 | Magnetic rotary locking mechanism and method A magnetic rotary locking mechanism for locking a plate or sheet-like member by placing it in tension which may be adapted to provide a self-tensioning locking device for securing a printing plate to a printing cylinder in a rotary printing press. The bas... | 11/07/1989 |
| 4879161 | Method for printing a double-sided display on transparent film A process for printing a two-sided visual display for attachment to a window, screen or object is provided which can be identically viewed from either side of the support surface. The carrier sheet is of the electrostatic adhesion type which clings to the... | 11/07/1989 |
| 4856429 | Flexographic printing machine, especially for flexographic blank printing A flexographic printing machine, especially for flexographic web printing, has at least one printing unit. Such a printing unit comprises an endless printing band drawn on round a back-up cylinder and a tension roller, an impression cylinder, an engraved ... | 08/15/1989 |
| 4843963 | Silk screen printing frame and associated method A silk screen printing frame that consists of a frame that can accommodate two smaller screens that fit into the larger frame. A set of the smaller screens range from 0-9, thus a total of 20 screens will accommodate all numbers from 0-99. Alignment and ce... | 07/04/1989 |
| 4836112 | Hydraulic inching drive system An inching drive mechanism which affords the capability of rotating the plate and blanket cylinders of a printing press in an automated fashion by utilizing a hydraulically powered motor, a gear train and a pneumatic clutch. The hydraulic motor produces t... | 06/06/1989 |
| 4829896 | Apparatus for attaching a printing blanket to a printing cylinder A lock-up mechanism for holding printing blankets to printing cylinders in rotary presses, which eliminates the problem of blanket pullout. The lock-up mechanism includes a substantially planar surface on a reel rod, running from the inner edge of the axi... | 05/16/1989 |
| 4821644 | Method and apparatus for positioning a member The method utilizes an encoding switch to derive encoded position signals representing the current position of a member such as the print element of a franking machine. The switch has conductive strips and in order to ensure reliable operation of the swit... | 04/18/1989 |
| 4520728 | Method of operating a printing press and apparatus A register assembly including sleeve and collar means and gearing which can be adjusted relative to each other off-machine and to a predetermined position on the plate cylinder journal or shaft so that when the register assembly is mounted on the plate cy... | 06/04/1985 |
| 4467722 | Method and apparatus for drawing flexible printing blocks onto printing rollers in an in register manner Individual blocks with the register elements provided on one of their sides are fitted to corresponding register pins on a strip-like mounting device and are optionally affixed with small double adhesive tape portions. The mounting device is then fitted t... | 08/28/1984 |
| 4393398 | Apparatus for simulating color printing process An apparatus for simulating a color printing process comprises a scanning unit including a table on which four color separation films formed from a color original are placed side by side, a pair of flying spot scanner tubes, four lens systems for projecti... | 07/12/1983 |
| 4080896 | Method for high speed application of printing code indicia A method for the high speed application of printing code indicia. The articles to be imprinted are carried by a conveyor consecutively past an imprinting zone wherein printing heads on an imprinting wheel intercept the article at an imprinting location. T... | 03/28/1978 |
| 3995555 | Removable redeemable coupon for newspaper advertisements and method and apparatus for producing same A removable redeemable coupon for newspaper advertisements and method and apparatus for producing same wherein the newspaper is printed in a rotary web press having a plurality of pairs of printing plate cylinders and blanket cylinders between which the w... | 12/07/1976 |
| 3969826 | Apparatus for pre-adjusting the plate cylinders of printing presses In a multi-color rotary printing press equipped with a plate cylinder at each of a plurality of printing stations where a web is to be printed, the rotary positions of the plate cylinders are pre-adjusted to achieve registry of the printing applied at eac... | 07/20/1976 |
