...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7404558 | Sheet supplying device and sheet processing device using detecting lever A sheet supplying device has a sheet delivering roller for delivering sheets one by one; a feeding roller for feeding the sheet delivered by the sheet delivering roller; a pinch roller urged by the feeding roller to be rotated by the feeding roller; a detecting leve... | 07/29/2008 |
| 7224493 | Imaging apparatus having a media sensor An imaging device has a print media path for transporting a print media sheet in a sheet feed direction. A mounting device is coupled to a frame. A media sensor has a body and at least one rotating member rotatably coupled to the body. The body is coupled to the mou... | 05/29/2007 |
| 7205561 | Media sensor apparatus using a two component media sensor for media absence detection An imaging apparatus includes a media support surface. A light source and a light detector are positioned in relation to a reflective surface such that when a sheet of print media covers the reflective surface, a reflected specular light component of a light beam is... | 04/17/2007 |
| 7007945 | Separation roll wear compensation device A sheet take-out apparatus includes a pickup roller to send out sheets, a take-out roller to take out sheets sent out by the pickup roller, a separation roller pressure contacting the take-out roller to separate taken out sheets one by one by applying revolving torq... | 03/07/2006 |
| 6805509 | Paper sensing apparatus of image forming machine A paper sensing apparatus of an office machine has a sensor actuator disposed to pivot with respect to a pivot center of a conveying roller by a printing paper when the printing paper is conveyed, and a sensing unit generating a paper sensing signal in accordance wi... | 10/19/2004 |
| 6609709 | Sheet member feeding device, recording apparatus employing the same and image pick-up apparatus with recording mechanism A sheet member feeding device comprises a first gear transmitting a driving force to a feeding roller for intermittently feeding a sheet member per a predetermined feeding amount, a second gear having a first mark and a second mark representative of a max... | 08/26/2003 |
| 6561509 | Monitoring apparatus for the sheet feed to a sheet-processing machine, and method of monitoring the sheet stream structure/the sheet stream A method is proposed for measuring thickness and detecting double and missing sheets during the sheet feed to a sheet-processing machine, such as a sheet-fed printing machine. A corresponding monitoring apparatus has one or more sensing elements above or ... | 05/13/2003 |
| 6334723 | Print medium feed system using pre-existing printing apparatus The invention accomplishes print medium feed functions, at least in part, by making use of pre-existing printer apparatus that is used to accomplish other functions of the printer. For example, the invention can enable the use-of a single print drive mech... | 01/01/2002 |
| 6290410 | Modular autoduplex mechanism with simple linkage A modular duplex media handling system used in conjunction with a simplex media handling print recording apparatus, includes a drive roller having a simple gear linkage. The simple gear linkage provides a fixed rotational relationship between the drive ro... | 09/18/2001 |
| 6152443 | Optical device for detecting the printing media in printers An optical device for detecting the printing media in printers includes an element pivoting on two rotation pivots which are incorporated therein a certain distance apart and which are guided in respective independent curved grooves. The pivoting element ... | 11/28/2000 |
| 6022019 | Device for checking sheet articles such as bank notes An apparatus for testing sheet material with sensors having one or more components and fastened to the front of a base plate as separate units on one and/or both sides of a sheet material path. The fastening system includes a first fastening device which ... | 02/08/2000 |
| 5964460 | Copying device with a printing medium detecting device Sheets stacked on the sheet tray are delivered and fed one by one along the sheet conveyance path by the rotation of a sheet-feed roller in cooperation with a frictional member. The sheet conveyance path has a sheet-feed actuator provided thereon for dete... | 10/12/1999 |
| 5818470 | System and method for directly feeding paper to printing devices A unique system and method for directly feeding sheets into a printing device having a moving image conducting element with a plurality of images placed thereon for transfer to sheet paper and having a wait station for controlling the timing of paper tran... | 10/06/1998 |
| 5395106 | Sheet forwarding apparatus for determining causes of feeding defects A sheet feeding unit includes a sheet forwarding unit for forwarding sheets from a sheet storing unit, a key input portion, a sheet detection gate, and a control unit. In one embodiment, the sheet forwarding unit repetitively performs its function after a... | 03/07/1995 |
| 5393044 | Paper feeder A paper feeder for use in copiers has a feed roller, a conveying roller and a registration roller. The apparatus further includes a feeding-conveying drive section for driving the conveying roller in synchronization with the rotation of the feed roller, a... | 02/28/1995 |
| 5315361 | Printer using electrostatic process including multiple sheet discharge receivers with a pivotal guide and a full tray detector A printer with a sorter unit allows printed recording sheets to be sorted to a single tray selected from a plurality of trays by a recording sheet guide mechanism that pivots around a shaft. Thus, the printer can sort the printed sheets by page, by user, ... | 05/24/1994 |
| 4509734 | Mechanically-operated magazine-unloading, sheet-feeding mechanism for sheet processing apparatus The sheet-processing apparatus has a mechanically-rotated platen at its sheet-processing station, upstream, along the pair of powered transport rolls and upstream of them, at the outlet of the sheet magazine, a powered sheet-abstracting roll. A drive trai... | 04/09/1985 |
| 4039179 | Device for collating sheets Batches of sheets are arranged in the desired order in a series of parallel racks. Pushers simultaneously entrain the upper sheet of each batch and cause the upper sheets to protrude from the racks, ready for collection. The protruding sheets interrupt a ... | 08/02/1977 |