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| Number | Title | Issue Date |
| 5468078 | Printer color ink ribbon positioning control A printer for use with an ink ribbon having at least two printing tracks is provided with a print head that moves along a predetermined path adjacent to a recording medium. A line driver reciprocates the print head along the path in first and second direc... | 11/21/1995 |
| 4747715 | Vacuum buffered ribbon transport system A printer having extended ribbon capacity is provided with a vacuum buffering system which stores ribbon on either side of a ribbon utilization mechanism, illustratively an impact print head. In a preferred embodiment, the ribbon is stored in a pair of va... | 05/31/1988 |
| 4423973 | Ribbon elevating mechanism for ribbon cassettes The invention relates to a mechanism for raising and lowering a ribbon in front of the typing area of a typewriter or similar machine. The mechanism is so designed that only a few lightweight plastic parts need be moved thereby greatly reducing the actuat... | 01/03/1984 |
| 4401395 | Typewriter The typewriter has a drive mechanism including a vibrating mechanism and a feeding mechanism for a correction ribbon. The vibrating mechanism has a pair of ribbon vibrators, a cam follower provided to one of the vibrators, an eccentric cam designed to mak... | 08/30/1983 |
| 4398838 | Typewriter ribbon lifting and transporting device The invention is a mechanism for raising and lowering the ribbon in typewriters to make typed text visible. No separate drive such as a motor or magnet is required to raise the ribbon. The ribbon is raised by means of a spring-loaded bar prior to each cha... | 08/16/1983 |
| 4395149 | Ribbon drive mechanism A ribbon drive mechanism for a typewriter or similar machine in which the supply spool and a first ribbon guide are fixed with respect to the machine frame, and the take-up spool and a second ribbon guide are vertically moveable with respect to the machin... | 07/26/1983 |
| 4060162 | Ribbon lift guide A ribbon lift guide for a serial printer comprising a generally circularly shaped flexible disc member coupled to the hub of the print wheel element on the side of the print wheel containing the print surface of the character slug and positioned parallel ... | 11/29/1977 |
| 3987885 | Automatic single and repeat function mechanism for typewriters A method and mechanism for automatic actuation of single and repeat typewriter functions such as backspacing upon the insertion and removal of a ribbon cartridge. The ribbon cartridge, carrying a bidirectional camming abutment having a pair of converging ... | 10/26/1976 |
| 3976184 | Ribbon cartridge for dual automatic typewriter function A typewriter ribbon cartridge having a camming abutment thereon for engaging one or more typewriter function responsive means to thereby actuate the typewriter function mechanism when the ribbon cartridge is inserted into the typewriter and thereafter to ... | 08/24/1976 |
