Method and apparatus for producing drops using a drop-on-demand dispenser

Title: Method and apparatus for producing drops using a drop-on-demand dispenser

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Abstract

A method and apparatus for dispensing fluid from a drop-on-demand (DOD) fluid dispenser. The method involves withdrawing fluid in the dispenser for a first duration of time, followed by a second duration of time during which the fluid is propelled toward the orifice of the dispenser. Following the period during which the fluid is propelled, there is a second withdrawing of the fluid into the dispenser. The duration of the propelling period is shorter than the duration of either the first withdrawing or the second withdrawing. The propelling of the fluid results in the extension of a small tongue of fluid from the meniscus of the fluid. The second withdrawing of the fluid results in a retraction of the meniscus into the passageway such that only the small tongue of fluid separates and is ejected from the dispenser.

Inventors:: Chen, Alvin U.; Basaran, Osman A.

Publication Date:: 2003-01-01

Research Org.:: Purdue Univ., West Lafayette, IN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 875015

Patent Number(s):: 6,513,894

Application Number:: 09/716,576

Assignee:: Purdue Research Foundation (West Lafayette, IN)

DOE Contract Number:: FG02-96ER14641

Resource Type:: Patent

Resource Relation:: Patent File Date: 2000 Nov 20

Country of Publication:: United States

Language:: English

Subject:: /347/

Citation Formats


                    Chen, Alvin U., and Basaran, Osman A. Method and apparatus for producing drops using a drop-on-demand dispenser.  United States: N. p., 2003. 
        Web.

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                    Chen, Alvin U., & Basaran, Osman A. Method and apparatus for producing drops using a drop-on-demand dispenser.  United States.

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                    Chen, Alvin U., and Basaran, Osman A. Wed .  
        "Method and apparatus for producing drops using a drop-on-demand dispenser".  United States.  https://www.osti.gov/servlets/purl/875015.

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@article{osti_875015,

  title        = {Method and apparatus for producing drops using a drop-on-demand dispenser},

  author       = {Chen, Alvin U. and Basaran, Osman A.},

  abstractNote = {A method and apparatus for dispensing fluid from a drop-on-demand (DOD) fluid dispenser. The method involves withdrawing fluid in the dispenser for a first duration of time, followed by a second duration of time during which the fluid is propelled toward the orifice of the dispenser. Following the period during which the fluid is propelled, there is a second withdrawing of the fluid into the dispenser. The duration of the propelling period is shorter than the duration of either the first withdrawing or the second withdrawing. The propelling of the fluid results in the extension of a small tongue of fluid from the meniscus of the fluid. The second withdrawing of the fluid results in a retraction of the meniscus into the passageway such that only the small tongue of fluid separates and is ejected from the dispenser.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/875015},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {1}

}

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