Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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 |
| 5383734 | Image recording apparatus having a ribbon drive slip clutch An image recording apparatus for performing image recording on a recording medium by using an ink sheet having a plurality of colors of ink includes a recording head acting on the ink sheet to perform image recording on the recording medium, a first feedi... | 01/24/1995 |
| 5133614 | Device for driving a printer print-head carriage having a belt tensioning device and a ribbon drive clutch In a printer, a drive motor, a drive roller arranged on the shaft of the motor, a reversal roller in spaced relation to the drive roller, and an elongated drive belt trained about the drive and reversal rollers form a tensioning device, the belt being fas... | 07/28/1992 |
| 5096315 | Ink ribbon winding mechanism The present invention relates to an ink ribbon winding mechanism for a printer which prints with an ink ribbon. It is constructed by disposing a ribbon winding gear, which is connected with an ink ribbon winding shaft through a slipping mechanism, and a d... | 03/17/1992 |
| 4869607 | Line printer ribbon reverse mechanism A ribbon reverse mechanism for a high-speed line printer having a towel ribbon driven between a pair of spring-loaded spools by gear means coupled to band drive motor includes an input shaft coupled to the drive motor and having mounted thereon a pair of ... | 09/26/1989 |
| 4723853 | Thermal transfer printer A thermal transfer printer wherein the carriage is equipped with the ribbon cassette and the thermal head and has a take-up shaft engageable with the take-up core of the ribbon cassette, and clutch means is provided between the motion converting means and... | 02/09/1988 |
| 4553869 | Buckling one way clutch A mechanical torque transmitting apparatus such as a one-way clutch which includes two distinct sets of flexural arms (primary and auxiliary) and a cylindrical engagement surface. The primary flexural arm is adapted to be in edgewise continuous engagement... | 11/19/1985 |
| 4413557 | Ribbon type dating equipment A ribbon dater which has, improved structure: (a) to quickly reverse the direction of movement of the ribbon so that the same can be re-run thru the printer; (b) to quickly reverse the direction of movement of the ribbon and at the same time provide for a... | 11/08/1983 |
| 4037708 | Multicolor ink ribbon control for a typewriter A typewriter ribbon system comprising a ribbon drive device movable in response to the operation of a control device. The system allows the selection and printing of a specific longitudinal portion of a ribbon in the operative impact area.... | 07/26/1977 |
| 3990564 | Ribbon drive mechanism A pair of compensating wheels are carried by a print head carriage in position to ride on record media being printed and are rotatably driven by frictional contact therewith, the wheels having overriding clutches associated with their respective shafts to... | 11/09/1976 |
| 3990563 | Spool-ejecting ink ribbon device An ink ribbon device having a holder for a ribbon spool which is pivotably mounted on a frame which supports the spool drive device. When the spool is inserted into the holder, a slide on the holder top is operated against the force of a spring, and engag... | 11/09/1976 |
| 3939957 | Carriage operated ribbon drive and reverse mechanism A printer arrangement of the type which prints data serially along a line on a record medium by relative impact of type characters and record medium through a ribbon. Printing is a mixture of stop and go printing, essentially a character at a time, and co... | 02/24/1976 |
