Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7232122 | Jam detection method and system for an inserter A document assembly system with jam detection capability. The system including an accumulation chassis having a series of pusher fingers for pushing collations of documents. Above the chassis, document feeders release documents to the chassis to form the collations.... | 06/19/2007 |
| 7056048 | System for ensuring correct placement of printed matter on a tangible print medium A system for ensuring that printed matter is properly printed on a print medium including a printer having a feeding device and a plurality of detecting devices disposed along a length of the feeding device. The print medium has a plurality of signaling components, ... | 06/06/2006 |
| 6994265 | ATM receipt A medium for printing, such as a thermal receipt roll for an ATM. The medium has two sides, each side having a plurality of marks positioned to trigger an automatic operation, such as printing, movement, or cutting of the medium when identified by a detector. Prefer... | 02/07/2006 |
| 6602007 | Pin tape for scrap removal A pin tape has a series of pins mounted on a pin tape, which can then be releasably secured at a desired position in a printing process and produce more efficient collection of scrap paper, thereby enhancing the efficiency of the crane process.... | 08/05/2003 |
| 6572291 | Print media handling system and printer having the same A print media handling system for feeding print media into a media inlet of a printer is disclosed. The print media handling system includes a media feeder for feeding print media along a media path towards the media inlet. At least one trimming element i... | 06/03/2003 |
| 6183406 | Printer tractor paper feeder and ironer A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to mainta... | 02/06/2001 |
| 5887998 | Tractor-feed unit The tractor-feed unit has a pair of first and a pair of second rollers rotatably supported by frame members. A pair of endless tractor belts are wound around the first and second pair of rollers. The tractor belt has protrusions, with which sprocket holes... | 03/30/1999 |
| 5791794 | Transfer printing station for parallel processing of two recording medium webs A printing station includes pins for engaging into edge perforations of continuous paper. The pins are mounted on a toothed belt at the gaps between the belt teeth. A two part pin mounting has a portion engaged between the teeth of the belt.... | 08/11/1998 |
| 5779378 | Continuous form printer A printer includes a tractor unit for feeding continuous form paper, encoders driven in synchronization with a tractor belt, and detecting sensors for detecting rotation of the encoders to generate feed pulses at a standard interval. The printer further i... | 07/14/1998 |
| 5707161 | Printer with a multiple continuous-sheet processing capability In a printer with a multiple continuous-sheet processing capability, a first pusher tractor unit and a second pusher tractor unit disposed above the first feed continuous sheets from the front of the printer to a printing line along substantially straight... | 01/13/1998 |
| 5516220 | Continuous form printer having adjustable tractors A continuous form printer includes a tractor feed system that adapts to changes in paper width while printing. A tractor body is movable on a shaft, and a movable housing supporting tractor pulleys and a tractor belt is resiliently movable with respect to... | 05/14/1996 |
| 5338122 | Continuous-feed paper, method of forming single sheets from continuous feed paper, and method of forming continuous feed paper A length of continuous-feed paper, comprising a multiplicity of adjacent paper sheets aligned end-to-end for being fed into a printer. Each of the sheets are defined from adjacent sheets by a cut through the paper, and extending transversely from one side... | 08/16/1994 |
| 5246300 | Apparatus and method for removing paper jams from printers An apparatus for removing media jams from a printer throat in a printer in its preferred form is a sheet of flexible material having two linear arrays of spaced pin apertures aligned along opposing sides thereof. The pin apertures are sufficiently spaced ... | 09/21/1993 |
| 5226742 | Electrically powered paper stacking apparatus and method for impact printers and the like Method, apparatus, system and circuitry for controlling the paper motion and accumulation at the output of a high speed impact printer or the like. The preferred embodiment includes means for providing stepped motion paper drive at the output of the print... | 07/13/1993 |
| 5184905 | Device for the transport of paper in printers, particularly dot matrix printers A paper transport device in printers (1), particularly in dot matrix printers, for the feeding of continuous webs (6) by transversely displaceable tractors (7, 8) which are arranged in pairs on the printer frame. The tractor pins (9) engage into the edge ... | 02/09/1993 |
| 5183348 | Printer having tractor unit attachable to one of upstream and downstream sides of platen To prevent concurrent mounting of two tractor units on an upstream side and a downstream side of a platen of a printer, a rocker member is pivotally mounted by a pivot pin on a side plate of a chassis to which the tractor unit is attachable. The rocker me... | 02/02/1993 |
| 5156476 | Paper feed mechanism A paper feed mechanism for feeding fan-fold paper into a printer, a typewriter, or the like has a drive roller, an idler roller, and a pin belt trained around the drive and idler rollers and having a series of pins for engaging in perforations of the fan-... | 10/20/1992 |
| 5131771 | Printer employing a continuous paper or a cut paper selectively and being provided with a paper bail A printer comprises a platen roller for supporting and feeding a cut sheet, a first motor for rotating the platen roller and a tractor for feeding a continuous paper. The tractor is capable of being connected to the first motor through the platen roller. ... | 07/21/1992 |
| 5123761 | Office machine In an office machine, for example a printer, with an endless paper transport mode via a tractor and with an individual paper transport mode via driving rollers, one mode of operation is changed to the other in a simple way. A two-armed rotary lever is rot... | 06/23/1992 |
| 5122004 | Printing system with a function of printing on labels A label separating system for separating labels from a backing web after the labels have been printed is disclosed. This system utilizes the paper holding roller which is used for holding paper against the platen as it is printed and a separating roller u... | 06/16/1992 |
| 5069565 | Computer printer for printing labels and tags having vertically orientated tractor feed A portable personal computer printer adapted for printing heavy print media such as tags and label stock by drawing the media vertically through the printer without substantial bending of the media.... | 12/03/1991 |
| 5061096 | Device for transport of multi-layer, edge-perforated imprint-receiving substrates A device for the transport of multilayer, edge-perforated imprint-receiving substrates (8) takes into consideration a curve-shaped transport path (9), wherein a thrust tractor pair (5) is disposed in front and ahead of a substrate support (2), as seen in ... | 10/29/1991 |
| 5037222 | Printer and cartridge assembly therefor A printer has one or more tractor sets for continuously feeding paper along first and second paper paths. One tractor set may be pivoted between positions for feeding paper from the front or bottom of the printer along the first paper path. Where one trac... | 08/06/1991 |
| 5018888 | Paper tension adjusting device and method for a printer A paper tension adjusting device in which one of the tractors with feeding pins changing feeding apertures in the paper is movable widthwise to adjust widthwise paper tension. The desired tension is determined from paper thickness which is in turn determi... | 05/28/1991 |
| 5002413 | Paper feed tractor A paper feed tractor comprising a main frame, a sub frame secured to the main frame with a major portion thereof and disposed in parallel to the main frame, and a belt driving unit supported for sliding movement between the main and sub frames. The main a... | 03/26/1991 |
| 4995745 | Printer with multi-function paper feeding mechanism A printer includes improved paper feeding mechanism. A manual paper guide plate below an automatic paper feeding device can guide a thick piece of paper into a printing position on the platen without bending it hard around the platen. A pin tractor below ... | 02/26/1991 |
| 4995746 | Office machine In an office machine, for example a printer, with a printing unit, with individual paper transport via pairs of rollers and with endless paper transport via a tractor, a release of the pressure rollers, which is necessary for the tractor to operate in the... | 02/26/1991 |
| 4990010 | Paper feed tractor with fixed and pivotable pressure plates A pin-tractor type paper feed mechanism is disclosed which includes feed belt with pins for feeding paper having perforations along the edges of the paper, the pins of the feed belt being engageable with the perforations of the paper. An endless film is p... | 02/05/1991 |
| 4988226 | Printer having main and auxiliary pin tractor units A printer has a main pin tractor unit fixedly provided interiorly of a printer housing and an auxiliary pin tractor unit detachably mounted on the printer. The auxiliary pin tractor unit is mounted in a position immediately above the main pin tractor unit... | 01/29/1991 |
| 4981380 | Printer with mechanism for guiding paper A printer with a mechanism for guiding paper has a lower casing having a printer body therein with a print head therein, an upper casing hingedly mounted on the lower casing for movement between a closed and an open position relative to the printer body, ... | 01/01/1991 |
| 4974979 | Twintractor The twintractor is a device designed to be incorporated into a wide carriage personal computer printer, or supplied as an accessory to such a printer or a typewriter, giving it the capability of transporting and printing upon, in the alternative, one of t... | 12/04/1990 |
| 4961526 | Paper feeder A paper feeder has a pair of spaced opposed side frames, a driving sprocket having external teeth on the outer circumferential surface thereof and a supporting shaft on which the driving sprocket is mounted and rotably mounted between the two side frames,... | 10/09/1990 |
| 4951859 | Anti-flutter tractor door A tractor feed mechanism for feeding print forms comprises a continuous flexible pin belt wrapped around a pair of drive pulleys rotatably supported by a tractor body. Pins projecting from the flexible belt engage the forms via perforation in the forms. A... | 08/28/1990 |
| 4948282 | Drive device for a thermal transfer printer The invention provides a drive device for a thermal transfer printer of the type which includes a thermal head for printing data on a label on a mount by way of an ink ribbon. A platen roller contacts the mount having a label thereon. The mount is also co... | 08/14/1990 |
| 4938405 | Tractor drive for an office machine A tractor drive for feeding continuous paper in an office machine has a drive shaft provided with an axially extending groove; a tractor housing; a drive wheel rotatably supported in the tractor housing; a transport member connected to the drive wheel to ... | 07/03/1990 |
| 4936695 | Gear engaging mechanism for a paper handling device A paper handling device including a first gear attached to a first paper feed device, such as a platen, and engaging a driving pinion; a second gear attached to a second paper feed device, such as a tractor unit, located in a plane including the first gea... | 06/26/1990 |
| 4913574 | Sheet feeding apparatus in a printer A sheet feeding apparatus in a printer is provided with: feeding rollers for holding and feeding a sheet of paper therebetween; and an operation lever for changing the contact pressure of the feeding rollers by attaching or detaching the feeding roller to... | 04/03/1990 |
| 4905597 | Method and apparatus for pin feeding and printing continuous forms A strip provided adjacent the edges thereof with perforations is driven forwards during a printing operation by the cooperating printing and counter-pressure cylinders of an offset mechanism, and by two pairs of pin tractors, pins of which enter the somew... | 03/06/1990 |
| 4896979 | Device for a paper transport in an office machine in particular in a matrix printer A device for a paper transport in an office machine, in particular in a matrix printer, presupposes the presence of side plates (1, 2), wherein a print-support surface (7) is supported and, in addition, a friction drive including a roller pair for individ... | 01/30/1990 |
| 4875790 | Printing device having gear connected multiple feed paths A printing device wherein a cut-form printing sheet and a serial-form printing sheet is selectively in use is disclosed. The disclosed printing device is characterized by: first sensing means for detecting the position of an idler gear which selectively t... | 10/24/1989 |
