1
Michael L Bullock, Winthrop D Childers, B Mark Hirst, Ronald D Stephens Jr, Antoni Gil Miquel: Replaceable part with integral memory for usage, calibration and other data. Hewlett Packard Company, Kevin B Sullivan, November 10, 1998: US05835817 (246 worldwide citation)

A printer/copier apparatus is adapted to receive a replacement ink cartridge that is employed during the printing/copying operation. The apparatus includes a receptacle with a first connector that is coupled to a processor which controls operation of the apparatus. The cartridge includes a second co ...


2
Michael L Bullock, Winthrop D Childers: Apparatus controlled by data from consumable parts with incorporated memory devices. Hewlett Packard Company, September 22, 1998: US05812156 (210 worldwide citation)

A printing system includes a replaceable cartridge for housing a supply of consumable marking media. The cartridge includes a cartridge memory for recording printing system-related parameters, including marking media parameters. A replaceable printing device, such as an ink jet head, includes a prin ...


3
James A Feinn, Winthrop D Childers, Clayton L Holstun, Lawrence H White, Matthew D Giere, Colin C Davis: Inkjet printhead assembly having very high nozzle packing density. Hewlett Packard Company, April 8, 2003: US06543879 (196 worldwide citation)

An inkjet printhead assembly includes a substrate having an ink feed slot formed therein including a first side and second side along a vertical length of the ink feed slot. A first column of drop generators is formed along the first side of the ink feed slot. A second column of drop generators is f ...


4
Michael L Bullock, Winthrop D Childers, B Mark Hirst, Ronald D Stephens Jr, Antoni Gil Miquel: Replaceable part with integral memory for usage, calibration and other data. Hewlett Packard Company, Dennis G Stenstrom, December 16, 1997: US05699091 (193 worldwide citation)

A printer/copier apparatus is adapted to receive a replacement ink cartridge that is employed during the printing/copying operation. The apparatus includes a receptacle with a first connector that is coupled to a processor which controls operation of the apparatus. The cartridge includes a second co ...


5
Brian L Helterline, Michael L Bullock, Winthrop D Childers: Method and apparatus for storing and retrieving information on a replaceable printing component. Hewlett Packard Company, Kevin B Sullivan, March 21, 2000: US06039430 (177 worldwide citation)

An ink jet printing system including a replaceable printing component for use in the printing system. The replaceable printing component includes a memory portion associated therewith for storing information that does not relate directly to normal operation of the printing system. Also included is a ...


6
Brian J Keefe, Steven W Steinfield, Winthrop D Childers, Paul H McClelland, Kenneth E Trueba: Ink delivery system for an inkjet printhead. Hewlett Packard Company, January 11, 1994: US05278584 (161 worldwide citation)

This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a barrier layer containing ink channels and vaporization chambers is located between a rectangular substrate and a nozzle member containing an arr ...


7
Michael L Bullock, Winthrop D Childers: Apparatus controlled by data from consumable parts with incorporated memory devices. Hewlett Packard Company, February 1, 2000: US06019449 (146 worldwide citation)

A printing system includes a replaceable cartridge for housing a supply of consumable marking media. The cartridge includes a cartridge memory for recording printing system-related parameters, including marking media parameters. A replaceable printing device, such as an ink jet head, includes a prin ...


8
Winthrop D Childers, Bruce Cowger: Ink jet cartridge with separately replaceable ink reservoir. Hewlett Packard Company, January 19, 1999: US05860363 (139 worldwide citation)

A replaceable ink cartridge for an ink jet printer having an ink supply station with an ink receptacle and an electric connector. The cartridge includes a chassis removable from the ink supply station, and having an ink passage and an electrical connector connectable to the printer's electric connec ...


9
Winthrop D Childers, Joseph E Scheffelin: Syringe for filling print cartridge and establishing correct back pressure. Hewlett Packard Company, September 30, 1997: US05673073 (95 worldwide citation)

A modified syringe for recharging an ink supply in a print cartridge is described. In the preferred embodiment, the end of a syringe valve is inserted into the end of a print cartridge valve to create both a mechanical coupling and a fluid tight coupling between the two valves. A further insertion c ...


10
William R Wagner, Winthrop D Childers: Light modulator assembly. Hewlett Packard Development Company, October 24, 2006: US07126741 (94 worldwide citation)

A light modulator assembly includes a substrate, a micro-electro mechanical semiconductor device (MEMS device) formed on the substrate, and a temperature control device coupled to the substrate and configured to maintain the MEMS device at or above an elevated threshold temperature.