Class 271/115 - In oscillatory movement

Subclass of Class 271 - Sheet feeding or delivering
Definition: Device wherein the sheet-removing means turns partially
No. of patents: 37
Last issue date: 09/08/2009

Number	Title	Issue Date
7584952	Sheet feeding assembly A sheet from the top of a stack of media, and is driven by a reversible electric motor operated in a forward direction to drive a feed roll and nudger roll; and operated in a reverse direction to drive a cam profiled to raise and lower the nudger roll. One-way clutc...	09/08/2009
7370857	Paper feeding apparatus A paper feeding apparatus includes a housing accommodating a plurality of papers, a pickup unit, a rotation transmitting member and a torque transmitting member. The pickup unit has a pickup lever, a driving shaft rotatably supporting the pickup lever, and a pickup ...	05/13/2008
7270325	Sheet feeding apparatus, image reading apparatus, and method of detecting double feed A sheet feeding apparatus includes first and second transport devices disposed at a transport guide with a distance in between for nipping and transporting a sheet, and a double feed detection device disposed between the first transport device and the second transpo...	09/18/2007
7249760	Paper pickup mechanism A paper pickup mechanism mounted in a feeder includes several driving gears, connecting rods, a pickup roller and a twist restricting gear. By means of the twist restricting gear, the paper pickup mechanism provides an equal pickup force under different paper loads....	07/31/2007
7225697	Power transmission arrangement A power transmission arrangement includes a shaft, a first gear mounted on the shaft, a plate supported by the shaft and rotatable between a first position and a second position, a second gear supported by the plate and engaged with the first gear, and a third gear ...	06/05/2007
7128317	Moveable media dam A moveable media dam comprises a media dam rotatably connected to a dam shaft, the dam shaft extending from a lever. An arm has at least one camming member and the lever is engaged by the at least one camming member. The arm operably engages a gear train and further...	10/31/2006
7100915	Paper feeding apparatus of image forming device A paper feeding apparatus of an image forming device having a feeder opening and closing unit to automatically rotate a paper feeder between a storing position and a paper feeding-standby position selectively employing a driving source driving a transporting unit wi...	09/05/2006
7065318	Paper feeder and image forming apparatus A paper feeder includes a plurality of paper feeding units that feeds a recording medium from a paper feeding tray, has a first guiding surface towards a paper transporting path that guides the recording medium, and is arranged along a direction of transporting the ...	06/20/2006
6682064	Method and apparatus for dismantling a stack of flat objects piece by piece A method for dismantling a stack (1) of flat objects (2, 3) piece by piece, in which the top object (2) of the stack (1) is moved in its plane, gripped at its freed edge and removed from the stack (1). The top object (2) is moved against a stop (5), at le...	01/27/2004
6631899	Sheet feeding method and device and image forming apparatus using the device A method of feeding sheets includes the step of conveying the sheets between a feed roller and a separation member. The separation member is pressed against and into contact with the feed roller with a pressure applied between the feed roller and the sepa...	10/14/2003
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
6574569	Paper quality determination sensor and faulty banknote sorting device A paper quality determining sensor and a faulty paper sorting device capable of detecting reaction forces of paper sheets themselves which vary according to paper quality using a plurality of rollers so as to detect the stiffness (rigidity) of paper sheet...	06/03/2003
6547236	Pick-up mechanism and a method for performing a pick-up cycle in a reproduction machine A pick-up mechanism and a method for performing a pick-up cycle in a reproduction machine. The pick-up mechanism comprises a pick-up control pinion which is firmly coupled to a control cam, and a drive gearing including a first rocker driving gear and a s...	04/15/2003
6478295	Paper discharging apparatus for printer A paper discharging apparatus for a printer includes: a plurality of support plates for supporting the paper and rotating in a direction parallel to a paper proceeding direction; a rotation shaft of a feed roller arranged in a direction perpendicular to t...	11/12/2002
6257569	Apparatus and method for delivery of sheet media to a printer An apparatus and method for delivery of sheet media to a printer includes a chassis, a drive motor, a media tray with elevatable pressure plate, a plurality of pick rollers situated opposite movable pinch rollers that come into contact with the pick rolle...	07/10/2001
6254083	Leaf transfer mechanism unit When a driven piece is caused to move forward, a follower piece is allowed to follow the forward movement of the driven piece with the assistance of the biasing force of a biasing member. The follower piece induces the movement of a urging member toward a...	07/03/2001
6224051	Paper feed method and apparatus It is an object of the present invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper. According to the method for feeding back a sh...	05/01/2001
6113092	Sheet-fed printing press with rotary decollator A printing machine is described that includes a rotary plate for decollating top sheet from a stack of sheets by turning the top sheet so as to expose a second sheet. The machine also has a clamping finger that tilts into position to hold the second sheet...	09/05/2000
6000690	Sheet feeding apparatus A sheet feeding apparatus that can be used in an image reading apparatus or an image recording apparatus to pick-up sheets of paper for one-by-one transfer to an image generating mechanism (e.g., an image reader or a print. head). The sheet feeding appara...	12/14/1999
5984298	Sheet feeding apparatus with a driving device for a paper stopper A sheet feeding apparatus having a feeding roller for feeding a sheet, a support shaft forwardly and reversely rotatable integrally with the feeding roller and a stopper disposed upstream of the feeding roller in the sheet feeding direction for temporaril...	11/16/1999
5876032	Sheet feeder and printer The sheet feeder of an ink jet printer includes a semi-cylindrical feed roller. A first gear and a second gear are fixed to the roller coaxially with it. The feeder also includes a feed motor rotatable in both directions. The torque of reverse rotation an...	03/02/1999
5249789	Sheet film magazine for a film changer A sheet film magazine for a film changer has a conveyor for conveying individual film sheets from a film stack to an exposure or receptacle portion of the film changer. The conveyor comprises at least one conveyor wheel which is attached to a shaft that i...	10/05/1993
5193797	Paper feeding system and picking system used therefor A paper feeding system that eliminates a mechanism for interrupting driving force to picking rollers to lower the cost of the system and to secure the feeding of papers. Corner nails are supported in a manner displacable up and down on the both sides of t...	03/16/1993
5141217	Device for feeding paper for use in a facsimile There is disclosed a device for feeding documents stacked in a document tray for use in a facsimile machine. The device includes a pick-up roll for picking up the undermost document of the stacked documents, a transferring roll for transferring the docume...	08/25/1992
5026040	Device for the sequential introduction of sheets in a shaping or forming machine A device for sequentially introducing sheets placed in a stack into the nips of a pair of introduction rollers comprising at least one linear member having ends secured to a control pulley or roller and passing around a return pulley or roller which is ad...	06/25/1991
4928950	Rotary type feeder machines and methods A method for making a lead edge feeder for feeding corrugated paperboard is described which eliminates the need for a complex indexing transmission. The method includes connecting a rocker shaft to a rocker gear so that the rocker gear rotates in a feed d...	05/29/1990
4925062	Paper feeder A paper feeder system inclusive of a paper feed table for placing paper thereon, a transport roller, a first shaft for supporting the transport roller thereon, feed rollers, a first arm pivotably supported by the first shaft and extending toward the feed ...	05/15/1990
4844444	Roll feed apparatus A roll feed apparatus has first and second rolls for gripping a plate when rotated in first directions and moving from each other when rotated in second directions, and first and second brake pieces for fixing the plate during rotation in the second direc...	07/04/1989
4699374	Sheet feeding apparatus A sheet feeding apparatus is arranged to feed sheets, such as bank statements, along a guideway (40) to an exit slot (16), the guideway (40) including a smooth guide surface (58) which has the configuration of part of a cylinder. Two elastomeric rolls (10...	10/13/1987
4638991	Adjustable nip roll feed apparatus with braking/releasing device A roll feed apparatus having a first roll and a second roll for intermittently clamping therebetween and feeding sheet material. An adjusting device is provided for adjusting the gap between the first and second rolls and includes a pivot member adapted t...	01/27/1987
4638990	Roll feed apparatus with adjustable nip A roll feed apparatus having a first roll and a second roll for oscillatory rotation in opposite directions such as to intermittently feed a sheet clamped therebetween. The roll feed apparatus comprises a pivot member having one end fitting on a pivot sha...	01/27/1987
4463943	Dispenser for dispensing photographic sheets from a stack A dispenser for dispensing photographic sheets from a stack, comprising a dispensing mechanism with first and second sheet buckling members operative to make the upper sheet buckle and lift and then to release the leading edge of the buckled sheet to allo...	08/07/1984
4092206	Labelling machine A labelling machine comprises a revolving carrier with at least one pickup element rotatably mounted thereon. A stationary sun gear is provided and the drive for each pickup element includes a drive spindle, a pinion meshing with the sun gear and axially ...	05/30/1978
4060228	Pull-foot feed In a modified embodiment of the pull-foot sheet feeding device described in U.S. application Ser. No. 608,970, filed Aug. 29, 1975, now Pat. No. 4,013,283 the bottom roller is replaced by a roller segment. The roller segment is pivotally mounted on a carr...	11/29/1977
4013283	Pull-foot sheet feeding device In a mechanism for feeding individual sheets of paper separately from a stack of paper sheets, a separating device exposes an edge of an outer sheet and a "pull-foot" is oscillated between the separated sheet and a remaining stack. A roller is concurrentl...	03/22/1977
3999747	Record card feeding apparatus Apparatus for feeding data processing record cards seriatim from the bottom of a stack to a data sensing station or the like including a pair of oscillating picker members for displacing a record card from the bottom of the stack, and a pair of sector rol...	12/28/1976
3944215	Sheet feeding apparatus To rotate sheet engaging means such as a roller disposed in engagement with an outermost sheet of a stack sheets in a receptacle, there is provided sheet feeding apparatus including first and second rotatable members, wherein the first member has inwardly...	03/16/1976

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Class 271/115 - In oscillatory movement