Apparatus and method for using bubble as virtual valve in microi

Details Apparatus and method for using bubble as virtual valve in microi Apparatus and method for using bubble as virtual valve in microi

1999-01-22

2000-08-15

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 94, B41J 205

Patent

active

061025305

ABSTRACT:
An apparatus and method for forming a bubble within a microchannel of a microinjector to function as a valve mechanism between the chamber and manifold, that provides for a high resistance to liquid exiting the chamber through the manifold during fluid ejection through an orifice and that also provides a low resistance to refilling of liquid into the chamber after ejection of fluid and collapse of the bubble. This effectively minimizes cross talk between adjacent chambers and increases injection frequency of the microinjector. The formation of a second bubble within the chamber coalesces with a first formed bubble between the chamber and manifold to abruptly terminate the ejection of fluid, thereby eliminating satellite droplets.

REFERENCES:
patent: 4494128 (1985-01-01), Vaught
patent: 4546360 (1985-10-01), Fischbeck et al.
patent: 4638337 (1987-01-01), Torpey et al.
patent: 4740796 (1988-04-01), Endo et al.
patent: 5206659 (1993-04-01), Sakurai et al.
patent: 5211806 (1993-05-01), Wong et al.
patent: 5278585 (1994-01-01), Karz et al.
patent: 5467112 (1995-11-01), Mitani
patent: 5479196 (1995-12-01), Inada
patent: 5486848 (1996-01-01), Ayata et al.
patent: 5502471 (1996-03-01), Obermeier et al.
patent: 5539437 (1996-07-01), Penwell
patent: 5563640 (1996-10-01), Suzuki
patent: 5648805 (1997-07-01), Keefe et al.
patent: 5666140 (1997-09-01), Mitani et al.
patent: 5751317 (1998-05-01), Peeters et al.
patent: 5757391 (1998-05-01), Hoisington
Yu, Dual Heaters In A Thermal Ink Jet Channel, Xerox Disclosure Journal, v16, No.2, pp. 91-92, Mar. 1991.
Tseng et al; Control of Mixing with Micro-Injectors for Combustion Application; Proc. MEMS (DSC-vol. 59), ASME Int. Mechanical Engineering Congress and Exposition, Atlanta, GA, Nov. 1996, pp. 183-187.
Zhu et al; Micromachined Acoustic-Wave Liquid Ejector; Tech. Dig. Solid-State Sensor and Actuator Workshop, Hilton Head Island, SC, Jun. 1996, pp. 280-282.
Pimbley et al; Satellite Droplet Formation in a Liquid Jet; IBM J. Res. Develop Jan. 1977, pp. 21-30.
Hirata et al; An Ink-jet Head Using Diaphragm Microactuator; Proc. IEEE Micro Electro Mechanical Systems Workshop, San Diego, CA, Feb. 1996, pp. 418-423.
Krause et al; Backshooter--A New Smart Micromachined Single-Chip Inkjet Printhead; Tech. Dig. 8th Int. Conf. Solid-State Sensors and Actuators (Transducers '95), Stockholm, Sweden, Jun. 1995, pp. 325-328.
Chen et al; A High-Resolution Silicon Monolithic Nozzle Array for Inkjet Printing; Tech. Dig. 8th Int. Conf. Solid-State Sensors and Actuators (Transducers '95), Stockholm, Sweden, Jun. 1995, pp. 321-324.
Chen et al; Visualization of Drop Ejection Process of A Thermal Bubble Ink Jet Printhead; Proc. The 1st Pacific Symposium on Flow Visualization and Image Processing, Honolulu, Feb. 1997, pp. 132-137.
Forbes T. Brown; Potential Building Blocks for Microhydraulic Actuators; DSC-vol. 46, Micromechanical Systems, ASME 1993, pp. 21-33.
Lee et al; The Application of Drop-on-Demand Ink Jet Technology to Color Printing; IBM J. Res. Develop., vol. 28, No. 3, May 1984, pp. 307-313.
Bogy et al; Experimental and Theoretical Study of Wave Propagation Phenomena in Drop-on-Demand Ink Jet Devices; IBM J Res. Develop., vol. 28, No. 3, May 1984, pp. 314-321.
Allen et al; Thermodynamics and Hydrodynamics of Thermal Ink Jets; Hewlett-Packard Journal, May 1985, pp. 21-27.
Nielsen, Niels J.; History of ThinkJet Printhead Development; Hewlett Packard Journal, May 1985, pp. 4-10.

Affiliated with

Also associated with

Rating

Apparatus and method for using bubble as virtual valve in microi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for using bubble as virtual valve in microi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for using bubble as virtual valve in microi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1999794