Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7111365 | Knob with decorative ring and snap on cap A multi-piece knob having a cylindrical tubular plastic body with a central hub and a peripheral wall. An annular end wall extends from the peripheral wall and terminates radially short of the central hub to define a passage into the tubular body and around the hub.... | 09/26/2006 |
| 5902058 | Sheet conveying apparatus and image forming apparatus The present invention provides a sheet conveying apparatus for conveying a sheet comprising a convey member for applying a conveying force to a sheet, a drive source for driving the convey member, and a drive transmitting means for transmitting a drive fo... | 05/11/1999 |
| 5547297 | Printer having a speed reduction mechanism with integral and non-integral gear ratios A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recorrding paper is wound at the time of the transfer of images for printing; a clamping mechani... | 08/20/1996 |
| 5263784 | Sheet feeder for printer In a printer, a sheet feeder includes a motor which is used for a plurality of mechanisms in common so as to make the printer lighter in weight and more compact in size. The sheet feeder can vary the feeding amount of the sheet in response to the printing... | 11/23/1993 |
| 4976557 | Sheet conveying device with axially disengaged transmitter of restraining force A sheet conveying device provided with a detent mechanism and capable of effecting automatic feeding of the shet by the use of a drive source and also capable of effecting feeding of the sheet by manual operation, the sheet conveying device including a ro... | 12/11/1990 |
| 4909649 | Thermal transfer recording apparatus A thermal transfer recording apparatus wherein it comprises a power transmitting device for transmitting power from a driving motor of the apparatus to a platen roller of the apparatus, which device can change rotational speed of the platen roller to rota... | 03/20/1990 |
| 4621933 | Line spacing mechanism for printing machines A line spacing mechanism for printing machines comprises an electric motor which is operable to rotate selectively in either direction. A worm on the shaft of the motor meshes with a helicoidally toothed wheel to cause a platen roller to rotate in the clo... | 11/11/1986 |
| 4235556 | Platen variable A platen variable apparatus is disclosed for rotatably adjusting a platen in step increments and in fine amounts in a typewriter. The apparatus includes an individual hub member rotatably mounted on a platen extension and having teeth thereon intermeshed ... | 11/25/1980 |
| 4217057 | Printer paper feed assembly including means for facilitating manual paper advance A paper feed assembly for a printer which permits manual paper advance includes a pair of rotatable rollers for advancing a print paper therebetween, a paper feed gear mounted on one roller and a drive gear alternately operatively engaged with the paper f... | 08/12/1980 |
| 4195940 | Line control for platen printing devices A control for platen rotation in printers, and particularly in telex machines where the platen rotation drive, either a stepping motor or a DC motor, is provided with an incremental control actuated by keyboard keys to advance or counter advance the plate... | 04/01/1980 |
