Famous Patents
Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6398435 | Marking press device for producing raised symbols with or without coloring A marking press device having a pair of type arms that face each other to interpose a workpiece to be marked therebetween, a type fixed on each of said type arms for making a mark thereof, a circular type assembling member around which a plurality of said... | 06/04/2002 |
| 6231249 | Duplex printer using a ribbon shifting mechanism A duplex printer for printing on opposite sides of a document includes a ribbon shifting mechanism for moving a printing ribbon between a first position, in which the ribbon extends between a print head and the document for printing on a front side of the... | 05/15/2001 |
| 6071025 | Printer system having two or more ink cartridges A printer system includes a printer on which color and monochromatic print cartridges are mounted, and a personal computer to output bit map data to the printer. The kinds of these ink cartridges are memorized as status information within a RAM so that th... | 06/06/2000 |
| 5876130 | Apparatus for driving a ribbon of a printer An apparatus for driving a ribbon of a printer allows a ribbon driving shaft to move the forward/back and right/left directions for being moved together with a ribbon cartridge when the ribbon cartridge is moved by centering about a hub, thereby smoothly ... | 03/02/1999 |
| 5820276 | Ribbon cassette with ribbon guide mechanism A printer is provided with a platen having a sloping plane platen surface, a medium guide path for smoothly guiding paper along the plane including the platen surface, a transparent open/close paper guide positioned above the medium guide path, and two pa... | 10/13/1998 |
| 5615958 | Oscillatory ribbon cartridge for a printer A printer cartridge includes exit and entrance arms for receiving and exiting ribbon from the cartridge in response to a drive mechanism whereby the ribbon passes from the exit arm to an entrance arm past a printhead. An oscillator is coupled to the ribbo... | 04/01/1997 |
| 5391007 | Thermal ribbon cassette having adjustable guide posts An improved thermal ribbon cassette is detachably mounting to a thermal printing postage meter. The thermal ribbon cassette has an opening, a plurality of posts. Some of which posts are located to each side of the opening, a take-up spool and a supply spo... | 02/21/1995 |
| 5370469 | Cassette holder assembly A cassette holder assembly includes a first cassette holder for detachably attaching a first ink ribbon cassette at a position that the ink ribbon is supplied to a printing face of a print head, and a second cassette holder detachably mounted on the first... | 12/06/1994 |
| 5360279 | Printer ink ribbon control A compact, lightweight printer capable of using multi-track ink ribbons that facilitates multicolor printing, without having a dedicated track switching drive system. The printer employs a printing track setting member that is activated by contact pressur... | 11/01/1994 |
| 5201592 | Reinking color ribbon cassette and ink ribbon selection mechanism A reinking color ribbon cassette for a printer is described. The cassette has plural, independent ink ribbons of different colors - such as the primary colors and a black color - and a ribbon feeder for driving only the ink ribbon of a selected color to p... | 04/13/1993 |
| 5183345 | Two-color shifting device for printing ribbon A feed wheel 10 provided at front and rear sides thereof with an intermittent gear 10b and a notched gear 10d, is formed on one end portion of a cylindrical cam shaft 5 for moving a printer, with a mesh-prevention side 10c left at its center. A switch cam... | 02/02/1993 |
| 5154520 | Multicolor printing apparatus having a multicolor ribbon shifting mechanism A multicolor printing apparatus having a multicolor ribbon shifting mechanism is disclosed wherein the multicolor ribbon is selectively separated from a print paper to be printed on prior to shifting the multicolor ribbon to change colors based upon a shi... | 10/13/1992 |
| 5145269 | Printer with a plurality of ink ribbon cassettes having a cam lift mechanism controlled by a stepper motor A printer with a plurality of ink ribbon cassettes is capable of printing characters or designs with a selected one of these ink ribbon cassettes. The printer includes a vertically movable cassette table on which the plurality of ink ribbon cassettes are ... | 09/08/1992 |
| 4948278 | Replaceable ribbon guide for dot matrix printers A ribbon guide for use with a dot matrix printer having a printhead traversable along a path parallel to a printing platen and which includes means for selectively shifting the ribbon guide to one of several positions. The ribbon guide includes a central ... | 08/14/1990 |
| 4944618 | Multicolor ink ribbon switching system for printer A multicolor ink ribbon switching system for a printer includes at least one discrimination switch, a controller, a cassette swinging mechanism, and a ribbon feed mechanism. The discrimination switch discriminates whether a ribbon cassette mounted on a ba... | 07/31/1990 |
| 4810118 | Cartridge system for printing apparatus A coloring system for a printing apparatus, wherein a color ribbon is mounted within a cartridge which may be inserted within the printing apparatus so that the color ribbon is operable in cooperation with a print head to effect color printing on a record... | 03/07/1989 |
| 4804283 | Ribbon feed device including tensioning control means The invention provides a ribbon feed device wherein a ribbon take-up mechanism located on a ribbon frame which is mounted for up and down pivotal motion on a carrier and carrying thereon an elongated ribbon along a platen takes up the ribbon in response t... | 02/14/1989 |
| 4753542 | Malfunction preventing arrangement of ribbon & correction tape A ribbon and correction tape are separately mounted on a typewriter for movement in closely spaced parallel planes from a position below a line of impact along a line of print to an elevated position opposite said line of print. To minimize interference a... | 06/28/1988 |
| 4718783 | Thermal printer A printer characterized in that a paper feed path for guiding a record paper to a printing position formed between a platen and a head is disposed on the same plane on the whole including the printing position and portions before and behind the printing p... | 01/12/1988 |
| 4676680 | Printing assembly with coloring system A printing apparatus having a printing base with a printing head located to perform a printing operation along said printed base operating with a color transfer band and a recording medium and with a scraper device separating the color transfer band and t... | 06/30/1987 |
| 4676679 | Recording apparatus A recording apparatus comprises recording means for recording on a recording medium through an ink ribbon in accordance with a predetermined system, means for covering the recording means such that the cover means is free to open or close, and means, inte... | 06/30/1987 |
| 4668961 | Recording apparatus A recording apparatus includes supply and take-up reels stored in a cassette case, a print head and a carriage. An ink ribbon housed in the cassette case can be fed from the supply reel in both the forward and reverse directions guided by means of guide r... | 05/26/1987 |
| 4397575 | Ribbon lift and feed mechanism for a typewriter A ribbon lift and feed mechanism for a typewriter/printer (10) in which the print ribbon cartridge (15) has deflectable arms (16a, 16b) for placing the ribbon (13) in a position confronting the platen (11) of the typewriter (10). On the platform (40), sup... | 08/09/1983 |
| 4373823 | Ribbon guide for an inked ribbon cartridge A cartridge for an inked ribbon for type bar typewriters comprises a container adapted to be mounted on one side of the printing point and a terminal part which guides a length of ribbon to the printing point and reverses the direction thereof for reentry... | 02/15/1983 |
| 4264223 | Reversible ribbon cartridge for a high speed impact printer In a high speed impact printer having means for receiving a ribbon cartridge and for driving the ribbon in said cartridge, the improved apparatus comprising a ribbon cartridge to be inserted in said receiving means and adapted to be reversed one time only... | 04/28/1981 |
| 3976185 | Typewriter ribbon conveying mechanism A ribbon cassette support is pivotally mounted on the printing head carriage of a typewriter. The support includes driving pawls for driving the cassette hubs and a member selectively disengaging one pawl from one hub to allow driving of the other hub by ... | 08/24/1976 |
