U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5076029

Helium-Filled Sun Shade

A helium-filled sun shade for protecting individuals engaged in outdoor activities.

Newsletter  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.

 

Class 400/639.1 - Mounted on "paper bail"


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the upper feed-roller(s)* is/are
No. of patents: 68
Last issue date: 05/29/2007


1    
NumberTitleIssue Date
7223033Pinch control in a printer
A pinch control apparatus in a printer for controlling a pinch force exerted on a medium which is being fed into a printing zone is provided. The pinch control apparatus includes a camshaft rotatably mounted across a width of the medium, at least one cam attached to...
05/29/2007
7056064Block unit for repairing flow passage facilities and method of repairing flow passage facilities
A block unit for repairing flow passage facilities is provided for permitting a desired repair operation. A method of repairing flow passage facilities using the block unit is also provided. The block unit includes an inner plate defining an inner surface, an outer ...
06/06/2006
7001017Drive roller releasing apparatus for ink-jet printer
A drive roller releasing apparatus for an ink-jet printer includes a drive roller separating mechanism at a drive roller to transport a printing material to a feed roller, to separate a pinch roller from the drive roller, and a controller to control the drive roller...
02/21/2006
5803633Printer for feeding printing sheets of different thicknesses
A printer for feeding printing sheets of different thicknesses including a sheet feeding roller 30 adapted to convey a printing sheet P. A pinch roller having a shaft 40a is provided and adapted to press a printing sheet against sheet feeding roller. A su...
09/08/1998
5441353Borderless printer having a rotating drum with clamp assembly
A borderless printer includes a clamp assembly having a clamp; at least one roller installed on the clamp and located on the circumferential surface of a drum and rotating while in contact with the drum; and a clutch placed between the clamp and drum, for...
08/15/1995
5363129Printing media feed and retaining apparatus for a thermal ink jet printer/plotter
A printing media feed and retaining apparatus particularly useful in a computer driven thermal ink jet printer/plotter which has a plurality of pinch rollers (20) mounted on a single pinch roller support member (25). One or more support members (25) are p...
11/08/1994
5302975Transport roller having compressible hubs
A nip-roller pair for transporting a sheet or web of material has one regular roller and a special roller to prevent scarring of the transported material. The special roller has one or more hubs of soft, compressible material that engage the material and ...
04/12/1994
5221150Paper feeding apparatus for printers having a bail roller means
A paper feeding apparatus for feeding fanfold paper to a printer is provided. A cylindrical platen is rotatably mounted in the printer. A paper feeding tractor is provided upstream from the platen in a paper feeding direction. A power mechanism drives the...
06/22/1993
5209590Paper bailing apparatus for printer
A paper bailing apparatus for a printer which holds paper against the platen by a bail roller. In order to drive the bail roller from the release position to the bailing position, the driving force of the paper feed gear is utilized. The paper feed gear t...
05/11/1993
5199806Apparatus for feeding individual sheets of paper as well as continuous fan fold paper utilizing a platen
A paper feeding apparatus for feeding fanfold paper to a printer is provided. A cylindrical platen is rotatably mounted in the printer. A paper feeding tractor is provided upstream from the platen in a paper feeding direction. A power mechanism drives the...
04/06/1993
5184904Paper feeder
A paper width of a sheet of paper is input into a paper width setting section. In case of defining a non-print area at a fore end of the paper, a paper bail roller is manually separated from a platen to output a detection signal A from a paper bail switch...
02/09/1993
5154519Paper bail device including a reversible motor to drive the paper bail and a ribbon
A paper bail device includes a ribbon drive gear adapted to be driven by a reversible motor; a ribbon drive shaft coupled to the ribbon drive gear through a one-way clutch; a paper bail support lever hinged to a printer body and supporting a paper bail ro...
10/13/1992
5135322Printer having one end of paper bail separated from a platen and the other end thereof contacting the platen
A printer comprises a rotatable platen for supporting a sheet and a printhead which is capable of moving along the platen to print data on the sheet. A paper bail shaft supports paper bail rollers rotatably so as to be faced to the platen. A printhead ret...
08/04/1992
5135321Unified paper path printer with automatic parking feature
A printer is disclosed having an improved paper feed mechanism. The improved paper feed system has a reduced cost and accepts a wide variety of paper types including continous forms and single cut sheets fed both by hand and from a paper tray. Furthermore...
08/04/1992
5131771Printer 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
5129748Compact printer having sheet and tractor media selections
A sheet or tractor media handling system for a compact printer having a housing, a cut-sheet supply station and a rotatable print platen constructed and located to feed top sheets from said supply station through a print path ingress past a print zone and...
07/14/1992
5120146Printer having a bail roller opening and closing mechanism
A printer having a bail roller opening and closing apparatus including a bail roller for pressing a printing medium against a platen, a bail roller opening and closing mechanism for moving the bail roller between a closed position and an open position, an...
06/09/1992
5078524Paper retaining mechanism
A paper retaining mechanism includes a support structure supporting a platen, a carriage mounted on the support structure for movement parallel to the platen to an end position, and a paper retaining device which includes a lever rotatably mounting a pape...
01/07/1992
5071275Printer having a bail roller opening and closing mechanism
A printer having a bail roller opening and closing apparatus including a bail roller for pressing a printing medium against a platen, a bail roller opening and closing mechanism for moving the bail roller between a closed position and an open position, an...
12/10/1991
5046873Automatic paper bail actuator
An automatic paper bail actuator for a printer having a rotating platen or equivalent means for feeding a printing support including a helicoidal spring wound on the platen shaft and having two end arms, a first arm being elongated to interfere with the b...
09/10/1991
5020929Paper feed device
In an automatic paper feed device having a platen and a paper bail arranged to be brought into and out of contact with the platen, the paper bail is further constituted to be brought into contact during a paper is fed in an predetermined amount, and to be...
06/04/1991
5017031Printing apparatus having an automatic paper insertion function
A printing apparatus includes one detection switch which is operated according to the movements of a carriage and a paper bail unit. The detection signal outputted from the detection switch is used for a control to locate the carriage to an origin positio...
05/21/1991
4971469Automatic paper loading mechanism and method for printer
In a printer in which a paper is pressed against a platen by a bail roller, the bail roller is automatically released from the platen, during paper loading, so as not to obstruct the paper feeding. The bail roller is pivotally moved between a loading position ...
11/20/1990
4941762Switching mechanism for a paper holding roller of a printer
A mechanism for switching a paper holding roller of an automatically feeding printer between a contact position for holding a paper against the platen and a separation position away from the platen utilizing the platen power source. A transmission mechani...
07/17/1990
4859099Automatic paper loading apparatus for printer having paper bail actuating device
An apparatus for automatically loading a printer with a recording medium, having a medium feeding motor, a carriage with a print head, a medium guide pivotable between a first position for urging the medium against a medium support, and a second position ...
08/22/1989
4832519Sheet setting device for printer and the like
A sheet setting device for a printer and the like including pressure rollers adapted to be brought into and out of engagement with a platen, and resist claws adapted to brought into and out of engagement with the platen in a position downstream of the pos...
05/23/1989
4802778Carriage drive control device in a printing device
A carriage drive control device to enable printing on a printing sheet from the leading edge thereof. A carriage drive control device repositions a carriage supporting a print head and a paper guide member at the midpoint of a printing line prior to each ...
02/07/1989
4799814Printer paper bail device
A paper bail in a printer having a platen includes two bail levers rotatably mounted on the printer and pressed toward the platen by a spring. An elongate bail plate is formed as a flat metal sheet having a L-shaped section, one side of which extends subs...
01/24/1989
4780014Paper feeding controlling method for a printer including printing at the leading edge of the paper
A paper feeding controlling method for a printer in which a record paper is first fed in a feeding direction until a leading end portion of the record paper reaches a recording position. In this position, the record paper will be printed for a first print...
10/25/1988
4722624Control apparatus for paper pressure rollers of printing machines
The control apparatus, in particular for electronic typewriters, comprises a lower guide for guiding a sheet of paper beneath a platen roller and up to a printing line of the platen roller, and a series of paper pressure rollers for guiding the sheet beyo...
02/02/1988
4714364Automatically returned paper ball assembly of a printer
A paper setting mechanism of a printer for setting a sheet of paper in position around a platen roller for printing desired information includes a paper bail assembly having at least one bail roller, which is pivotally supported and normally biased so as ...
12/22/1987
4707159Serial printer including a laterally reciprocable recording head, paper bail control, paper detection and feeding means, a multicolor ink ribbon including a head cleaning zone, a ribbon cassette and ribbon shift means
A printer for performing recording successively while a recording head moves backwards and forwards in a predetermined direction with respect to a recording medium such as paper. A paper hold roller for pressing the recording medium against a platen in th...
11/17/1987
4702632Sheet loading device and method for a printing apparatus
A printing apparatus is disclosed which comprises a platen roller for feeding a cut paper sheet set on a hopper, a paper bail bar having paper bail rollers used in conjunction with the platen roller to secure the cut paper sheet against the platen roller,...
10/27/1987
4693621Paper loading device of printer
The invention provides a paper loading device for a printer wherein, when paper is to be loaded onto a platen, in response to operation of a button or a lever with paper set in position, the platen is driven to cause the paper to be loaded thereto, and up...
09/15/1987
4684277Apparatus for delaying printer bail closing
An apparatus for delaying the closing of a printer paper bail so that paper positioned for the first line of printing at the top of the paper will advance in the paper path to a position where the paper bail can close on it. The apparatus mounts on a conv...
08/04/1987
4657420Paper feed mechanism
A paper feed mechanism comprises first and second rotating members rotated by a drive source, and pressing means swingable in a first direction to contact to and separate from the first rotating member and movable in a second direction crossing to the fir...
04/14/1987
4655626Electronic printer equipped with detecting device for an exchangeable sheet supplying unit
An electronic printer capable of operating in a manual feed mode and being adapted to operate in two automatic feed modes, a first involving operation with a continuous sheet, tractor feed mechanism and a second involving operation with stacked sheet mech...
04/07/1987
4647239Paper loading system for use in a printer
A paper loading system for use in a printer has a platen and a paper bail mounted with two rollers. A carriage having a projection is provided to move parallelly to the platen. At the free end of the projection, a photodetector is provided to detect an ed...
03/03/1987
4641830Printer paper feeding apparatus
A printer paper feeding apparatus providing cams at the central portion of a paper release lever around a platen shaft. A first cam is adapted to release paper bail rollers by rotation of the paper release lever. A second cam is adapted to contact and rel...
02/10/1987
4630950Paper bail for a printer and associated methods of operation thereof
Paper bail apparatus for a printer comprising a frame mounted on a non-circular paper bail shaft of a printer and rotatably supporting a pair of rollers for contact with the platen of the printer along two separate lines of contact which are circumferenti...
12/23/1986
1    
 
Sign InRegister
Username  
Password   
forgot password?