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| Number | Title | Issue Date |
| 6755125 | High speed marker A marking device (10) comprises a frame (1) (of frame plates (12,14)) to which are fixed first and second motors (16,18). A carriage frame (40) is pivoted in the frame about a screw axis (22). A marking head (30) is m... | 06/29/2004 |
| 4820066 | Method and device for coupling a cassette supported typewheel to a typewheel positioning shaft in typewriters or similar machines A method for automatically coupling a typewheel rotatably mounted in a cassette to a typewheel positioning shaft. After the insertion of the typewheel supporting cassette into a typewriter or printer, a coupling sequence is initiated under the control of ... | 04/11/1989 |
| 4363559 | Print wheel mounting assembly for serial printer A print wheel mounting assembly for a serial printer comprising means for transmitting a torque from a rotary shaft to a print wheel, means for positioning the print wheel in the direction of its rotation and means for regulating the position of the print... | 12/14/1982 |
| 4353655 | Electronic typewriter and its control apparatus An electronic typewriter comprising: a keyboard having a plurality of keys and generating an encoded signal in response to the depression of each key; a printing unit having a print wheel with a plurality of type elements disposed around the periphery the... | 10/12/1982 |
| 4347786 | Impact printer hammer flight time and velocity sensing means In an impact printer including a print wheel having a plurality of selectable character type bearing elements for respectively printing a plurality of characters, said print wheel being rotatable for selectively positioning selected type elements in succe... | 09/07/1982 |
| 4347005 | Mechanism to facilitate type disc changes A device to facilitate the changing of disc-shaped type carriers in typewriters or printers includes a lever operated device to push against the type disc and to press it off its shaft. A basket is provided to catch the type wheel after its disengagement ... | 08/31/1982 |
| 4319849 | Print hammer for high speed impact printer A print hammer for a high speed impact printer using a movable type-face-carrier, e.g., a rotatable printwheel. The print hammer is designed to enable rotating the printwheel for character selection purposes during the return stroke of the print hammer fr... | 03/16/1982 |
| 4313682 | Final positioning vibration damping device for type disc typewriters Disclosed is a device for use in type disc typewriters or similar machines having types carried by spokes radially extending from a common hub which is rotated to position a selected spoke at a print position. The device is operative to lock the type disc... | 02/02/1982 |
| 4307967 | Serial printing apparatus A type element (22) is driven across a sheet of paper (24) and a hammer is driven at desired space positions for printing without stopping the type element (22). A length of time required for the type element (22) to select a new character is computed, an... | 12/29/1981 |
| 4289412 | Automatic typefont loader An automatic typefont loader is sequenced to change the printwheel typefont of a printer. An elongated rack supports plural picker holders along its length and is normally located beneath the platen of the printer. Typefonts to be exchanged are held by th... | 09/15/1981 |
| 4268177 | Paper thickness adjusting mechanism for impact printer An apparatus adjusts the angular orientation of a moving carriage carrying a type font in a true font, stop-to-print, moving head high speed printer. This rotational adjustment provides a simple but accurate paper thickness adjustment which simplifies the... | 05/19/1981 |
| 4245917 | Linear actuator driven printer A high-speed printer includes a standard printing element, such as a daisy wheel, a paper feed mechanism and a ribbon feed mechanism. All of these various devices are controlled by a single linear actuator which comprises an elongated cylindrical magnet, ... | 01/20/1981 |
| 4236838 | Type-carrier disk with flexible tongues A type-carrier disk with flexible tongues for a printing device includes a central part for fixing onto a selection shaft and a peripheral notched crown from which issue several flexible tongues each tongue ending with a base from which projects a corresp... | 12/02/1980 |
| 4236842 | Hammer support for rotary printing apparatus A printing apparatus which includes a support for paper and a plurality of printing dies for making impressions on the paper. A reciprocally driven hammer is employed for causing the dies to form the impressions, and the hammer is supported by spring arms... | 12/02/1980 |
| 4214837 | Disc printers The type carrying disc has the type characters spaced irregularly along the disc periphery in dependence on their width, but the order in which these characters appear on the disc is independent of their width. Associated on the disc with each type charac... | 07/29/1980 |
| 4196667 | Print hammer for line printer A print hammer having an improved head portion for striking a selected moving print character member in a line printing device is provided. The printing device prints when the print hammer strikes a print character member at a predetermined print position... | 04/08/1980 |
| 4149809 | Typewriter spiral disc printer A rotatable disc type printer for use in conjunction with a typewriter having a movable carrier. The type element or characters are carried on radially extending petals and are arranged at varying distances from the center of disc rotation so as to define... | 04/17/1979 |
| 4126400 | Serial printing apparatus Resilient tongues project from a central hub and carry two or more type members. The hub is rotated to a position in which the tongue carrying the desired type member is in a printing position facing a paper supporting platen. The hub is then shifted alon... | 11/21/1978 |
| 4101006 | Carrier traverse control for a serial printer In a serial printer a movable type character element such as a ball, disc or the like is rotated to present different type characters to the print position. The carrier for the type element is moved along the print line at a predetermined maximum velocity... | 07/18/1978 |
| 4074798 | Encoded print wheel system A method and apparatus for providing variable print hammer energy information and variable character spacing information for every character of every font in an electronic typing system having interchangeable print wheels, wherein the individual print whe... | 02/21/1978 |
| 4044880 | High speed wheel printer and method of operation A print wheel is rotatably mounted on a carrier driven by a stepper motor to traverse the print line of a document. The wheel contains two or more arrays of characters with preferred characters most commonly used in each array and a number of lesser-used ... | 08/30/1977 |
| 3970186 | Damper for a composite print wheel A damper for a composite print wheel comprising two generally circular rings of an elastomer impregnated fabric material with a ring being adhesively coupled to each side of the beams of the print wheel and each ring being adhesively coupled to the other ... | 07/20/1976 |
| 3949853 | Proportional-spaced character print wheel A print wheel, for use with a serial impact printer, carrying a plurality of character elements at the outer periphery of radially-extending spokes. The print wheel of the present invention is characterized by the location layout of the characters around ... | 04/13/1976 |
| 3946852 | Printer A printer includes a print wheel having an outer circular row of typefaces comprising digits and punctuation signs and an inner circular row of typefaces comprising symbols, and hammer apparatus for actuating the typefaces of the print wheel to effect pri... | 03/30/1976 |
| 3935937 | Plastic and metal article of manufacture A composite of several materials constructed to form a printing disc, of the type used in high speed printers. The printing disc is manufactured in separate stages in order to achieve characteristics within the final assembly that are necessary for high s... | 02/03/1976 |
