Inventor

SCHEFFELIN JOSEPH E

US66 patents

⚠️ This page may combine multiple inventors who share the name “SCHEFFELIN JOSEPH E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHEFFELIN JOSEPH E

HEWLETT PACKARD CO

Continuous refill of spring bag reservoir in an ink-jet swath printer/plotter

Electrical connection for wide-array inkjet printhead assembly with hybrid carrier for printhead dies

Syringe for filling print cartridge and establishing correct back pressure

Printhead die alignment for wide-array inkjet printhead assembly

Carrier positioning for wide-array inkjet printhead assembly

Inkjet print cartridge design for decreasing ink shorts by using an elevated substrate support surface to increase adhesive sealing of the printhead from ink penetration

Continuous refill of spring bag reservoir in an ink-jet swath printer/plotter

Printer having a removable print cartridge with handle incorporating an ink inlet value

Ink recharger for inkjet print cartridge having sliding valve connectable to print cartridge

Inkjet printhead assembly having planarized mounting layer for printhead dies

Inkjet printhead assembly with hybrid carrier for printhead dies

Ink refill techniques for an inkjet print cartridge which leave correct back pressure

Inkjet print cartridge having handle which incorporates an ink fill port

Inkjet cartridge fill port adapter

Filter carrier for protecting a filter from being blocked by air bubbles in an inkjet printhead

Technique for filling a print cartridge with ink and maintaining a correct back pressure

Method and apparatus for regulating replenishment ink flow to a print cartridge

System and method for inducing tensioning of a flexible nozzle member of an inkjet printer with an adhesive

Refilling technique for inkjet print cartridge having two ink inlet ports for initial filling and recharging

Intermittent refilling of print cartridge installed in an inkjet printer

Inkjet print cartridge having a first inlet port for initial filling and a second inlet port for ink replenishment without removing the print cartridge from the printer

Inkjet print cartridge having an ink fill port for initial filling and a recharge port with recloseable seal for recharging the print cartridge with ink

Inkjet print cartridge having valve connectable to an external ink reservoir for recharging the print cartridge

Method of assembly of a collapsible ink reservoir structure

Substrate with fluid passage supports

Hybrid carrier for wide-array inkjet printhead assembly

Reference datums for inkjet printhead assembly

Coplanar mounting of printhead dies for wide-array inkjet printhead assembly

Printing system with single on/off control valve for periodic ink replenishment of inkjet printhead

Electrical interconnection for wide-array inkjet printhead assembly

Carrier for fluid ejection device

Method and apparatus for refilling a print cartridge having a spherical stopper

HEWLETT PACKARD DEVELOPMENT CO

Electrical circuit for wide-array inkjet printhead assembly

Substrate for fluid ejection devices

Substrate for fluid ejection devices

Joining of different materials of carrier for fluid ejection devices

Fluid ejection device and manufacturing method

Edge-sealed substrates and methods for effecting the same

Carrier for printhead assembly including fluid manifold and isolation wells for electrical components

Flush process for carrier of printhead assembly

Fluid delivery for printhead assembly

Fluid manifold for printhead assembly

Dual regulator print module

Dual regulator print module

Electrical circuit for printhead assembly

Method of forming substrate with fluid passage supports

Fluid ejection head assembly

KEEFE BRIAN J

Dual regulator print module

CRUZ-URIBE TONY S

Piezoelectric inkjet die stack

SCHEFFELIN JOSEPH E

Print bar structure