Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM
Assignee:
Xerox Corporation - Stanford CT
International Classification:
B41J 204
US Classification:
347 54
Abstract:
An electrostatic microelectromechanical system (MEMS) based fluid ejector comprises a movable piston structure and a stationary faceplate. A fluid chamber is defined between the piston structure and a substrate. The piston structure may be resiliently mounted on the substrate by one or more spring elements. A fluid to be ejected is supplied in the fluid chamber from a fluid reservoir through a fluid refill hole formed in the substrate. The faceplate includes a nozzle hole through which a fluid jet or drop is ejected. In various exemplary embodiments, the piston structure moves towards the faceplate by electrostatic attraction between the piston structure and the faceplate. As a result of the movement of the piston structure, a portion of the fluid between the piston structure and the faceplate is forced out of the nozzle hole, forming a jet or drop of the fluid.
Fluid Ejection Systems And Methods With Secondary Dielectric Fluid
Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM Leonard M. Carreira - Penfield NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B41J 204
US Classification:
347 54
Abstract:
A fluid ejection system according to this invention operates on the principle of electrostatic or magnetic attraction. In various exemplary embodiments, the fluid ejection system includes a sealed diaphragm arrangement having at least one diaphragm portion and a diaphragm chamber defined at least partially by the at least one diaphragm portion, a nozzle hole located over the at least one diaphragm portion, an ejection chamber defined between the nozzle hole and the least one diaphragm portion and a secondary dielectric fluid reservoir containing a secondary dielectric fluid. The ejection chamber receives a primary fluid to be ejected. The secondary dielectric fluid reservoir is in fluid communication with the diaphragm chamber to supply the secondary dielectric fluid to the diaphragm chamber. In various exemplary embodiments, the secondary dielectric fluid is a liquid, a substantially incompressible fluid, and/or a high performance dielectric fluid having a dielectric constant greater than 1.
Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B41J 204
US Classification:
347 54
Abstract:
A bi-directional fluid ejector according to the systems and methods of this invention operates on the principle of electrostatic attraction. In various exemplary embodiments, the fluid ejector includes a sealed dual diaphragm arrangement, an electrode arrangement that is parallel and opposite to the sealed diaphragms, and a structure which contains the fluid to be ejected. A diaphragm chamber containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms. At least one nozzle hole is formed in a faceplate of the ejector over one of the diaphragms. A drive signal is applied to at least one electrode of the electrode arrangement to generate an electrostatic field between the electrode and a first one of the diaphragms. The first diaphragm is attracted towards the electrode by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms.
Micromachined Fluid Ejector Systems And Methods Having Improved Response Characteristics
Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B41J 204
US Classification:
347 54
Abstract:
A piston structure is movably mounted within a fluid chamber. Movement of the piston structure towards a faceplate causes a portion of the fluid between the piston and the faceplate to be forced out of the nozzle hole in the faceplate, forming a drop or jet of the fluid. Viscous forces that are generated by the flow of fluid along a working surface of the piston structure toward and away from the nozzle hole generate a force that resists the movement of the piston structure. This resistance force tends to slow the piston motion, and prevents the piston from contacting the faceplate. In various embodiments, the fluid chamber is defined by a cylinder structure. The piston structure moves within the cylinder structure. The cylinder structure and the faceplate define the fluid chamber. The cylinder structure and the piston structure are designed to cooperate so that the movement of the piston structure within the cylinder structure ejects fluid according to various design criteria.
Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM William M. Lindenfelser - Rochester NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B41J 2938
US Classification:
347 9, 347 10, 347 54
Abstract:
An electronic drive system applies a drive signal to an electrostatically actuated device such that a resulting electric field has a constant force. In various exemplary embodiments, the electronic drive system applies a drive signal to an electrostatically actuated fluid ejector that has a piston and a faceplate including a nozzle hole. A dielectric fluid to be ejected is supplied between the piston and the faceplate. The drive signal is applied to one of the piston and the faceplate. The drive signal generates an electric field across the fluid between the piston and the faceplate. The electric field causes the piston to be electrostatically attracted towards the faceplate so that a jet or drop of fluid is ejected through the nozzle hole of the faceplate. According to exemplary embodiments, the drive signal is from a constant current source or is reduced over the course of its lifetime. Further, according to various exemplary embodiments, the drive signal is of a suitable high frequency to reduce the potential of electrochemical reactions or electrical breakdown, or both.
Nicholas K. Sheridon - Los Altos CA Joseph M. Crowley - Morgan Hill CA
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B32B 3300
US Classification:
428 402, 428195, 428 38
Abstract:
A gyricon or twisting-particle display based on nonspheroidal (e. g. , substantially cylindrical) optically anisotropic particles disposed in a substrate. The particles can be either bichromal or polychromal cylinders, preferably aligned parallel to one another and packed close together in a monolayer. A rotatable disposition of each particle is achievable while the particle is thus disposed in the substrate; for example, the particles can already be rotatable in the substrate, or can be rendered rotatable in the substrate by a nondestructive operation performed on the substrate. In particular, the substrate can be made up of an elastomer that is expanded by application of a fluid thereto so as to render the particles rotatable therein. A particle, when in its rotatable disposition, is not attached to the substrate. The close-packed monolayer configuration of particles provides excellent brightness characteristics and relative ease of manufacture as compared with certain other high-brightness gyricon displays.
Methods and systems consistent with the present invention can be used to assemble composite rotatable-element components and can be used to form a laminate substrate system, and use a plurality of rotatable-element components or rotatable-element component material of two classes. Each class is defined by a common response or responses to incident electromagnetic radiation of interest. The method for assembling a composite rotatable-element component comprises: dispersing a plurality of rotatable-element components of a first class to first preferred positions on a first carrier; dispersing a plurality of rotatable-element components of a second class to second preferred positions on a second carrier; performing a first manipulation of the first carrier and the second carrier such that one of the plurality of rotatable-element components of a first class and one of the plurality of rotatable-element components of a second class touch at a first contact point; and performing a second manipulation of the rotatable-element components that touch such that they bond to form a composite rotatable-element component. The method for assembling a laminate substrate further comprises: performing a third manipulation of the first carrier and the second carrier such that they touch at a set of second contact points; and performing a fourth manipulation of the first carrier and the second carrier such that they bond to form the laminate substrate.
Surface Micromachined Structure Fabrication Methods For A Fluid Ejection Device
Arthur M. Gooray - Penfield NY George J. Roller - Penfield NY Joseph M. Crowley - Morgan Hill CA Paul C. Galambos - Albuquerque NM Frank J. Peter - Albuquerque NM Kevin R. Zavadil - Bernilillo NM Richard C. Givler - Albuquerque NM Randy J. Shul - Albuquerque NM Christi Willison Gober - Albuquerque NM
Assignee:
Xerox Corporation - Stamford CT
International Classification:
H01L 21302
US Classification:
438745, 438756
Abstract:
Structures for use in conjunction with surface micromachined structures are formed using a two-step etching process. In various exemplary embodiments, the two-step etching process comprises a modified Bosch etch. According to various exemplary embodiments of the two-step etch, first mask and second masks are used to prepare a layer for etching one or more desired structures. The first mask is used to define at least one large feature. The second mask is used to define at least one small feature (small as compared to the at least one large feature). The second mask is formed over the first mask which is formed over the layer. In the first etching step, the at least one small feature is etched into the layer. Then, the second mask is removed using the chemical rinsing agent. In the second etching step, the at least one large feature is etched into the layer such that the at least one small feature propagates further into the layer ahead of the at least one large feature.
Isbn (Books And Publications)
Environment and Society: A Book of Readings on Environmental Policy, Attitudes, and Values
County of Broward General Government · Public Finance/Taxation/Monetary Policy · Legal Counsel/Prosecution · Administrative Educational Programs · Misc Business Credit Institutions Administrative Social/Manpower Programs · Executive Office · County Government · Court
9543576066, 9543577200, 9543577600, 9543576978
Joseph Crowley Manager Advanced Products And Services
Saint Alphonsus Medical GroupSaint Alphonsus Medical Group Pulmonary & Sleep Medicine 1075 N Curtis Rd STE 200, Boise, ID 83706 2083678333 (phone), 2083672003 (fax)
Education:
Medical School Georgetown University School of Medicine Graduated: 1981
Procedures:
Arthrocentesis Lumbar Puncture Pulmonary Function Tests Vaccine Administration
Dr. Crowley graduated from the Georgetown University School of Medicine in 1981. He works in Boise, ID and specializes in Pulmonary Disease. Dr. Crowley is affiliated with Saint Alphonsus Regional Medical Center.
The group boasted a slew of former lawmakers and politicians as its central advocates, including Trumps former deputy chief of staff Rick Dearborn, former House Democratic Caucus Chairman Rep. Joseph Crowley (N.Y.), and former GOP Rep.
Date: Dec 12, 2019
Category: World
Source: Google
A man trespassed into Alexandria Ocasio-Cortez's office
the past about threats of physical violence that she has faced as a result of the harsh criticism she receives from members of the far right. The New York congresswoman has been a particularly prominent target for conservatives after she won a stunning primary upset over Rep. Joseph Crowley, D-N.Y.
Date: Jun 16, 2019
Category: Headlines
Source: Google
Pelosi seeks to tamp down anti-Semitism controversy | TheHill
Engel has been floated to Justice Democrats, the organization which helped coordinate Ocasio-Cortezs shocking defeat of former Rep. Joseph Crowley (D-N.Y.) last year, as a longtime incumbent who some liberals believe should face a primary challenge from the left.
Date: Mar 04, 2019
Category: Headlines
Source: Google
Ocasio-Cortez emerges as GOP’s new foe at conservative confab | TheHill
The freshman congresswoman, who has been a progressive superstar since defeating long-term Rep. Joseph Crowley (N.Y.) in a Democratic primary last year, hasgarnered mega-media attention since entering office in January and loomed over this week's conference.
Date: Mar 03, 2019
Category: Headlines
Source: Google
Justice Democrats Helped Make Ocasio-Cortez. They’re Already Eyeing Their Next Targets.
Mr. McElwee, a pollster and political adviser, has floated all of those names to Justice Democrats, a small grass-roots organization that burst onto the political scene last year after coordinating Alexandria Ocasio-Cortezs stunning primary defeat of Joseph Crowley of New York, the No. 4 Democrat i
Date: Feb 23, 2019
Category: Headlines
Source: Google
Some Dems float idea of primary challenge for Ocasio-Cortez | TheHill
The New York delegation has eyed Ocasio-Cortez with skepticism ever since last summer when the 29-year-old self-described democratic socialist shocked the political world and defeated then-Rep. Joseph Crowley (D-N.Y.) in what many thought would be a sleepy primary race. Crowley, a Queens powerbroker
Date: Jan 29, 2019
Category: Headlines
Source: Google
Audience at Sundance roars when Ocasio-Cortez makes surprise video appearance
At voters homes, she encounters a mix of excitement, indifference and angst. One woman asks Ocasio-Cortez, Who are you running against? Joseph Crowley, the candidate replies. No! says the shocked voter. Another couple sitting on their porch tell Ocasio-Cortez that, although they are Democrats,
Date: Jan 28, 2019
Category: Headlines
Source: Google
GOP’s Steve Scalise shuts down Twitter debate on taxes with Ocasio-Cortez after ‘radical followers’ allude ...
longtime Democratic U.S. Rep. Joseph Crowley in a primary and then won the states 14th Congressional District seat in November, has been drawing increased media attention this week both for taking the oath of office Thursday and for an anticipated appearance Sunday on CBSs 60 Minutes.
Date: Jan 06, 2019
Category: Headlines
Source: Google
Youtube
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On the House floor Thursday, Rep. Joseph Crowley silently protested th...