ANGELA CHEN, MD
Osteopathic Medicine at Colby Ave, Everett, WA

6257569, Jul 10, 2001

Feb 24, 1999

9/256851

John D. Rhodes - Vancouver WA
Robert M. Yraceburu - Camas WA
Angela Chen - Portland OR
Steve O Rasmussen - Vancouver WA

Hewlett-Packard Company - Palo Alto CA

B65H 306

271117

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 rollers to form a roller assembly therebetween when in an extended position. A movable separator forms a throat between one of the pick rollers and the leading edge of the separator when it is in an extended position. A common transmission is used to simultaneously position the pinch rollers, separator, and the pressure plate. The apparatus also includes a media retarder for preventing multiple sheets of media from advancing through the apparatus at the same time. The method includes delaying the rotation of the pick rollers until a stack of media has been raised to press against the pick rollers, and the pinch rollers and separator are in an extended position. The pinch rollers and separator are retracted, and the transmission is disengaged from the pick rollers once the media sheet is delivered to a printer feed system.

D462744, Mar 2, 1999

Oct 31, 1997

D/078785

Stephen G. Brown - Vancouver WA
Michael K. Bowen - Vancouver WA
Richard Olson - Vancouver WA
Michael S. Millman - Vancouver WA
Robert M. Yraceburu - Camas WA
Angela Chen - Portland OR
Michael W. Munro - Vancouver WA
Dean A. Gaylor - Vancouver WA
Paul M. O'Brien - Veradale WA

Hewlett-Packard Company - Palo Alto CA

1402

D18 55

D413622, Sep 7, 1999

Oct 31, 1997

D/078784

Stephen G Brown - Vancouver WA
Angela Chen - Portland OR
Dean A Gaylor - Vancouver WA
Michael S Millman - Vancouver WA
Paul M O'Brien - Veradale WA

Hewlett-Packard Company - Palo Alto CA

1899

D18 49

6172741, Jan 9, 2001

Apr 14, 1999

9/292838

Geoff Wotton - Battleground WA
Angela Chen - Portland OR
Steve O. Rasmussen - Vancouver WA
John D Rhodes - Vancouver WA

Hewlett-Packard Company - Palo Alto CA

G03B 2760

355 73

A platen surface structure construct, particularly useful in a hard copy apparatus for a vacuum holddown, is configured by dimensioning print media platen surface structure channels and ports in order to ensure print media leading edge and trailing edge holddown. Moreover, the vacuum is distributed across the platen surface in accordance with predetermined dye flow characteristics based upon known dye composition and known print medium composition and such that print artifacts are not created by vacuum pulling wet dye through the capillaries of the medium.

6210055, Apr 3, 2001

Mar 27, 2000

9/535690

Angela S. Chen - Portland OR
Steven P. Downing - Camas WA

Hewlett-Packard Company - Palo Alto PA

B41J 201

400625

The present invention addresses the problem of paper cockle by stretching the paper as it progresses along the paper path through the wet colorant printing station of a hard copy apparatus. The hard copy apparatus uses a paper feed belt system as a paper platen in which the belt or set of belts is splayed along the paper path. Firmly adhering a sheet of print media to the belt, or belts, system, such as by use of a vacuum force, as it travels through the apparatus printing zone, stretches the media orthogonally and particularly in an orientation perpendicular to the paper path.

6079888, Jun 27, 2000

Jun 30, 1999

9/345689

Angela S. Chen - Portland OR
Steven P. Downing - Camas WA

Hewlett-Packard - Ft. Collins CO

B41J 201

400612

The present invention addresses the problem of paper cockle by stretching the paper as it progresses along the paper path through the wet colorant printing station of a hard copy apparatus. The hard copy apparatus uses a paper feed belt system as a paper platen in which the belt or set of belts is splayed along the paper path. Firmly adhering a sheet of print media to the belt, or belts, system, such as by use of a vacuum force, as it travels through the apparatus printing zone, stretches the media orthogonally and particularly in an orientation perpendicular to the paper path.

6254090, Jul 3, 2001

Apr 14, 1999

9/292125

John D. Rhodes - Vancouver WA
Steve O. Rasmussen - Vancouver WA
Angela Chen - Portland OR
Geoff Wotton - Battleground WA

Hewlett-Packard Company - Palo Alto CA

B65H 508

271276

A mechanism for manifolding a vacuum force to separate surface sectors of a vacuum holddown uses subsurface ducting to apply the vacuum to separate subsurface vacuum plenums wherein each is fluidically coupled to a separate surface sectors. The plenum is segregated by a diaphragm into surface side and vacuum side cavities. Trigger ports and appropriate ducting through the holddown subjacent the surface associated with each sector determine how the vacuum is routed. Only when a trigger port is covered is the vacuum routed to the surface sector associated therewith. The system can be implemented in planar or curvilinear constructs and be provided with features to accommodate a near-continuous range of flexible material sizes. A specific implementation in an ink-jet hard copy apparatus is also described.