Patents by Inventor Jeremy A. Davis

Jeremy A. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040075702
    Abstract: A system for receiving and recycling ink comprises a print cartridge having a printhead, and an ink supply reservoir fluidly connected to the print cartridge and a seal member coupled to the ink supply reservoir. The seal member defines a fluid path into the reservoir and the print cartridge engages the seal member so that ink spit from the printhead flows through the fluid path into the reservoir.
    Type: Application
    Filed: October 22, 2002
    Publication date: April 22, 2004
    Inventors: David J. Waller, Jeremy A. Davis, Kit L. Harper
  • Patent number: 6722752
    Abstract: A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for seletively drawing ink into or expelling ink from the chamber.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: April 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeremy A. Davis, David J. Waller, Kit L. Harper
  • Publication number: 20040041871
    Abstract: A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for selectively drawing ink into or expelling ink from the chamber.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 4, 2004
    Inventors: Jeremy A. Davis, David J. Waller, Kit L. Harper
  • Publication number: 20040041872
    Abstract: A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for selectively drawing ink into or expelling ink from the chamber.
    Type: Application
    Filed: July 30, 2003
    Publication date: March 4, 2004
    Inventors: Jeremy A. Davis, David J. Waller, Kit L. Harper
  • Patent number: 6623098
    Abstract: A positive stop capping system is provided for sealing an inkjet printhead in an inkjet printing mechanism during periods of printing inactivity. A positive stop or brace is provided in a cavity defined under a cap cover skin, with the skin also forming a sealing lip which surrounds ink-ejecting nozzles of the printhead when sealed. The flexible skin supporting the lip deflects into the cavity toward the brace when the cap is moved into a sealing position, in some cases contacting the brace, and in other cases, compressing the brace. An inkjet printing mechanism having the positive stop capping system and method of capping using this system are also provided.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 23, 2003
    Assignee: Hewlett-Packard Company, L.P.
    Inventor: Jeremy A. Davis
  • Patent number: 6609779
    Abstract: A bellows capping system is provided for sealing ink-ejecting nozzles of an inkjet printhead in an inkjet printing mechanism, such as a printer, during periods of printing inactivity. The system includes a support which moves between a sealing position and a rest position. The system also has a cap which extends from the support and terminates in a lip. The lip surrounds the nozzles when the support is in the sealing position. The cap has a wall with first and second leg portions joined together at a knee portion between the support and the lip. When sealing the printhead, the knee bends or buckles so the first and second portions collapse toward each other. Multiple knee portions may join together multiple wall portions in a bellows or accordion arrangement. An inkjet printing mechanism having the bellows capping system and method of using this capping system are also provided.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 26, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeremy A. Davis, Cal K. Stone
  • Publication number: 20030081049
    Abstract: A positive stop capping system is provided for sealing an inkjet printhead in an inkjet printing mechanism during periods of printing inactivity. A positive stop or brace is provided in a cavity defined under a cap cover skin, with the skin also forming a sealing lip which surrounds ink-ejecting nozzles of the printhead when sealed. The flexible skin supporting the lip deflects into the cavity toward the brace when the cap is moved into a sealing position, in some cases contacting the brace, and in other cases, compressing the brace. An inkjet printing mechanism having the positive stop capping system and method of capping using this system are also provided.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Inventor: Jeremy A. Davis
  • Publication number: 20030081048
    Abstract: A bellows capping system is provided for sealing ink-ejecting nozzles of an inkjet printhead in an inkjet printing mechanism, such as a printer, during periods of printing inactivity. The system includes a support which moves between a sealing position and a rest position. The system also has a cap which extends from the support and terminates in a lip. The lip surrounds the nozzles when the support is in the sealing position. The cap has a wall with first and second leg portions joined together at a knee portion between the support and the lip. When sealing the printhead, the knee bends or buckles so the first and second portions collapse toward each other. Multiple knee portions may join together multiple wall portions in a bellows or accordion arrangement. An inkjet printing mechanism having the bellows capping system and method of using this capping system are also provided.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Inventors: Jeremy A. Davis, Cal K. Stone
  • Patent number: 6540323
    Abstract: The present invention includes as one embodiment a capping station for a fluid ejection device having a snout feature, the capping station comprising a cap with a rigid body and a gland seal disposed around an inner perimeter of a cavity defined by the rigid body for resiliently receiving side portions of the snout feature of the fluid ejection device to create a seal with the fluid ejection device.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: April 1, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daniel D. Dowell, Louis C. Barinaga, Kit L. Harper, Jeremy A. Davis, David J. Waller
  • Publication number: 20020130919
    Abstract: A ganged inkjet printhead sealing system maintains inkjet printhead health in an inkjet printing mechanism during periods of printing inactivity. In multi-printhead printing mechanisms, separate caps seal against each of the printheads. The caps each have an outlet vent. The vents are all ganged together and fluidically coupled to a single, common pressure regulation chamber that isolates the environment adjacent the printhead nozzles from the external environment when the printheads are capped. A fluid in a U-shaped manometer tube, or an elastomeric bladder are used to isolate the pressure chamber environment. The bladder may be constructed as a thin-walled sheet, a spring-biased bag, or as a bellows. The pressure chamber volume changes to accommodate pressure spikes during the capping process, as well as environmental changes in temperature, elevation, barometric pressure, etc. An inkjet printing mechanism having such a ganged capping system, along with associated capping methods are also provided.
    Type: Application
    Filed: May 20, 2002
    Publication date: September 19, 2002
    Inventors: Jeremy A. Davis, Kris M. English, Jeffrey K. Pew
  • Patent number: 6406124
    Abstract: A ganged inkjet printhead sealing system maintains inkjet printhead health in an inkjet printing mechanism during periods of printing inactivity. In multi-printhead printing mechanisms, separate caps seal against each of the printheads. The caps each have an outlet vent. The vents are all ganged together and fluidically coupled to a single, common pressure regulation chamber that isolates the environment adjacent the printhead nozzles from the external environment when the printheads are capped. A fluid in a U-shaped manometer tube, or an elastomeric bladder are used to isolate the pressure chamber environment. The bladder may be constructed as a thin-walled sheet, a spring-biased bag, or as a bellows. The pressure chamber volume changes to accommodate pressure spikes during the capping process, as well as environmental changes in temperature, elevation, barometric pressure, etc. An inkjet printing mechanism having such a ganged capping system, along with associated capping methods are also provided.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: June 18, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Jeremy A. Davis, Kris M. English, Jeffrey K. Pew