Patents by Inventor Frederick A. Stawitcke
Frederick A. Stawitcke 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).
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Publication number: 20100040903Abstract: A horn for vibratory solid-state ultrasonic welding of metals and similarly-behaved materials “self-levels” to produce wide continuous seams or large-area spot-welds between delicate workpieces without damage, even if the workpieces are not perfectly flat and parallel to the nominal toolface angle. The horn toolface flexes under pressure to conform to skew-angled workpieces because it is disposed on a tool head supported by a tool neck cut from the tool body. The tool head, the tool neck, or both are anisotropically compliant. When resonances are properly optimized for typical VSS modes of vibration, atypical but useful localized modes are excited at the compliant toolface edges, actually intensifying the bond energy where one might normally expect unwanted damping. Various design approaches optimize the characteristics of the tool head and tool neck to various materials and bonding configurations. The horns can be configured for use with existing ultrasonic welders.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Applicant: OPTISOLAR, INC., A DELAWARE CORPORATIONInventors: Andrew S. Kalt, Marvin Keshner, Donald Winston Rice, Frederick A. Stawitcke, Jessie Ramirez Sanchez
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Patent number: 7344894Abstract: A method and miniature analytical device with thermal regulation of reactant using a localized heat source capable of emitting electromagnetic radiation, such as light emitting diodes (“LED”s) and vertical cavity surface emitting lasers (“VCSEL”s), generating internal heat, such as resistive, inductive and Peltier heaters, or external heating. The miniature analytical device comprises of array of temperature-controlled zones to restrict the volume heated and localize the heating by having the localized heat source comprise an array of emitters or heaters.Type: GrantFiled: October 16, 2001Date of Patent: March 18, 2008Assignee: Agilent Technologies, Inc.Inventors: Michael Greenstein, Frederick Stawitcke, Vladimir Drbal, Ganapati R. Mauze, Rick Pittaro, Richard Pering, Ed Verdonk, Don Alden, Frank Ingle, Klaus Stefan Drese, Hans-Joachim Hartmann, Olaf Soerensen
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Patent number: 6927382Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and separately formed photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array including a plurality of individual photoreceptors is selectively etched back between photoreceptor locations to reveal a plurality of recessed regions having a certain geographic profile. A plurality of semiconductor blocks, each having light emitting capability and each having a certain geometric profile that is complementary in size and shape to the certain geometric profile of the recessed regions, are separately fabricated. These blocks are included within a fluid to form a slurry. The slurry is then flowed over the CMOS fabricated photodetector array in accordance with a fluidic self-assembly technique, and the included semiconductor blocks are individually deposited within each of the plurality of recessed regions in the CMOS fabricated photodetector array.Type: GrantFiled: May 22, 2002Date of Patent: August 9, 2005Assignee: Agilent TechnologiesInventors: David Andrew King, Richard J. Pittaro, Shahida Rana, Edward Verdonk, Frederick A. Stawitcke, Richard D. Pering
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Patent number: 6821793Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and discrete photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array includes an arrayed plurality of photoreceptor areas and photoemitter areas, wherein each photoreceptor area includes a CMOS integrated photoreceptor and each photoemitter area includes at least two buried electric contact pads. The CMOS array is selectively etched back at the locations of the photoemitter areas for regions to reveal the buried contact pads. A plurality of discrete semiconductor photoemitter devices (such as, for example, light emitting diodes) are inserted into, and mechanically retained within, the regions of the CMOS fabricated photodetector array.Type: GrantFiled: September 22, 2003Date of Patent: November 23, 2004Assignee: Agilent Technologies, Inc.Inventors: Edward Verdonk, Richard J. Pittaro, Shahida Rana, David Andrew King, Frederick A. Stawitcke, Richard D. Pering
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Publication number: 20040222357Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and separately formed photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array including a plurality of individual photoreceptors is selectively etched back between photoreceptor locations to reveal a plurality of recessed regions having a certain geographic profile. A plurality of semiconductor blocks, each having light emitting capability and each having a certain geometric profile that is complementary in size and shape to the certain geometric profile of the recessed regions, are separately fabricated. These blocks are included within a fluid to form a slurry. The slurry is then flowed over the CMOS fabricated photodetector array in accordance with a fluidic self-assembly technique, and the included semiconductor blocks are individually deposited within each of the plurality of recessed regions in the CMOS fabricated photodetector array.Type: ApplicationFiled: May 22, 2002Publication date: November 11, 2004Inventors: David Andrew King, Richard J. Pittaro, Shahida Rana, Edward Verdonk, Frederick A. Stawitcke, Richard D. Pering
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Publication number: 20040067481Abstract: Embodiments of the invention provide a method for detecting the arrival of a fluid at or near a thermal sensor. A method includes obtaining a signal from the thermal sensor prior to arrival of the fluid, obtaining another signal during arrival of the fluid, and relating the two signals to indicate the arrival of the fluid. Devices for application of the method are also described.Type: ApplicationFiled: September 30, 2003Publication date: April 8, 2004Inventors: Leslie Leonard, Frederick Stawitcke, Richard Pittaro
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Publication number: 20040056262Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and discrete photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array includes an arrayed plurality of photoreceptor areas and photoemitter areas, wherein each photoreceptor area includes a CMOS integrated photoreceptor and each photoemitter area includes at least two buried electric contact pads. The CMOS array is selectively etched back at the locations of the photoemitter areas for regions to reveal the buried contact pads. A plurality of discrete semiconductor photoemitter devices (such as, for example, light emitting diodes) are inserted into, and mechanically retained within, the regions of the CMOS fabricated photodetector array.Type: ApplicationFiled: September 22, 2003Publication date: March 25, 2004Inventors: Edward Verdonk, Richard J. Pittaro, Shahida Rana, David Andrew King, Frederick A. Stawitcke, Richard D. Pering
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Patent number: 6707958Abstract: A biochemical assay device optically scans individual biological sample containing wells in an assay plate. The device includes an imaging system overlaying the assay plate wherein a scanning light propagates by total internal reflection within an optical waveguide. The waveguide includes a plurality of pixel locations, each aligned with a well in the assay plate, at which total internal reflection is selectively frustrated to output an incident beam of light. That light illuminates the well and causes generation of an emission beam of light that is detected by a photoreceptor. The device further includes a driver circuit that controls the selective frustration of total internal reflection at each pixel location in order to scan each well in the assay plate. A processor is also included in the device to process the detected emission beams of light generated by the scanned wells for purposes of assaying the biological sample contained in each scanned well.Type: GrantFiled: November 20, 2001Date of Patent: March 16, 2004Assignee: Agilent Technologies, Inc.Inventors: Richard D. Pering, David A. King, Richard J. Pittaro, Shahida Rana, Frederick A. Stawitcke, Edward D. Verdonk
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Patent number: 6657235Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and discrete photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array includes an arrayed plurality of photoreceptor areas and photoemitter areas, wherein each photoreceptor area includes a CMOS integrated photoreceptor and each photoemitter area includes at least two buried electric contact pads. The CMOS array is selectively etched back at the locations of the photoemitter areas for regions to reveal the buried contact pads. A plurality of discrete semiconductor photoemitter devices (such as, for example, light emitting diodes) are inserted into, and mechanically retained within, the regions of the CMOS fabricated photodetector array.Type: GrantFiled: May 22, 2002Date of Patent: December 2, 2003Assignee: Agilent Technologies, Inc.Inventors: Edward Verdonk, Richard J. Pittaro, Shahida Rana, David Andrew King, Frederick A. Stawitcke, Richard D. Pering
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Publication number: 20030218174Abstract: The disclosure is directed toward an optical excitation/detection device that includes an arrayed plurality of photodetectors and discrete photoemitters, as well as a method for making such a device. A CMOS fabricated photodetector array includes an arrayed plurality of photoreceptor areas and photoemitter areas, wherein each photoreceptor area includes a CMOS integrated photoreceptor and each photoemitter area includes at least two buried electric contact pads. The CMOS array is selectively etched back at the locations of the photoemitter areas for regions to reveal the buried contact pads. A plurality of discrete semiconductor photoemitter devices (such as, for example, light emitting diodes) are inserted into, and mechanically retained within, the regions of the CMOS fabricated photodetector array.Type: ApplicationFiled: May 22, 2002Publication date: November 27, 2003Inventors: Edward Verdonk, Richard J. Pittaro, Shahida Rana, David Andrew King, Frederick A. Stawitcke, Richard D. Pering
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Patent number: 6642498Abstract: The present invention is directed to a micromirror optical multiplexer for directing light to an array of sensors. The micromirror optical multiplexer directs light from one or more sources onto multiple, coplanar sensors for the purpose of exciting fluorescence. The micromirror optical multiplexer includes at least one light source and a micromirror array having a top face and up to four side faces. Pivotable mirrors of the micromirror array are arranged in a multiple row, multiple column format on the top face. In addition, each of the side faces of the micromirror array has at least one row of pivotable mirrors. By pivoting one side face mirror and one top face mirror, a light source entering at one corner of the micromirror array can be directed to exit near normal incidence anywhere on the bottom of the device.Type: GrantFiled: November 21, 2001Date of Patent: November 4, 2003Assignee: Agilent Technologies, Inc.Inventors: Edward Verdonk, David A. King, Richard D. Pering, Richard J. Pittaro, Shahida Rana, Frederick A. Stawitcke
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Patent number: 6640197Abstract: A sensor array is bonded to or molded together with a micro-lens array to form a sensor cartridge. The micro-lenses of the micro-lens array are configured to focus light incident on the sensors, into the sensors. An alignment structure has a mating profile that receives and engages one or more micro-lenses from the micro-lens array to laterally align the cartridge to enable repeatable precise positioning of the cartridge.Type: GrantFiled: February 8, 2002Date of Patent: October 28, 2003Assignee: Agilent Technologies, Inc.Inventors: Richard J. Pittaro, David Andrew King, Richard D. Pering, Shahida Rana, Frederick A. Stawitcke, Edward Verdonk
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Publication number: 20030154046Abstract: A sensor array is bonded to or molded together with a micro-lens array to form a sensor cartridge. The micro-lenses of the micro-lens array are configured to focus light incident on the sensors, into the sensors. An alignment structure has a mating profile that receives and engages one or more micro-lenses from the micro-lens array to laterally align the cartridge to enable repeatable precise positioning of the cartridge.Type: ApplicationFiled: February 8, 2002Publication date: August 14, 2003Inventors: Richard J. Pittaro, David Andrew King, Richard D. Pering, Shahida Rana, Frederick A. Stawitcke, Edward Verdonk
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Publication number: 20030095764Abstract: A biochemical assay device optically scans individual biological sample containing wells in an assay plate. The device includes an imaging system overlaying the assay plate wherein a scanning light propagates by total internal reflection within an optical waveguide. The waveguide includes a plurality of pixel locations, each aligned with a well in the assay plate, at which total internal reflection is selectively frustrated to output an incident beam of light. That light illuminates the well and causes generation of an emission beam of light that is detected by a photoreceptor. The device further includes a driver circuit that controls the selective frustration of total internal reflection at each pixel location in order to scan each well in the assay plate. A processor is also included in the device to process the detected emission beams of light generated by the scanned wells for purposes of assaying the biological sample contained in each scanned well.Type: ApplicationFiled: November 20, 2001Publication date: May 22, 2003Inventors: Richard D. Pering, David A. King, Richard A. Pittaro, Shahida Rana, Frederick A. Stawitcke, Edward D. Verdonk
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Publication number: 20030094564Abstract: The present invention is directed to a micromirror optical multiplexer for directing light to an array of sensors. The micromirror optical multiplexer directs light from one or more sources onto multiple, coplanar sensors for the purpose of exciting fluorescence. The micromirror optical multiplexer includes at least one light source and a micromirror array having a top face and up to four side faces. Pivotable mirrors of the micromirror array are arranged in a multiple row, multiple column format on the top face. In addition, each of the side faces of the micromirror array has at least one row of pivotable mirrors. By pivoting one side face mirror and one top face mirror, a light source entering at one comer of the micromirror array can be directed to exit near normal incidence anywhere on the bottom of the device.Type: ApplicationFiled: November 21, 2001Publication date: May 22, 2003Inventors: Edward Verdonk, David A. King, Richard D. Pering, Richard J. Pittaro, Shahida Rana, Frederick A. Stawitcke
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Publication number: 20030073229Abstract: A method and miniature analytical device with thermal regulation of reactants using a localized heat source capable of emitting electromagnetic radiation, such as light emitting diodes (“LED”s) and vertical cavity surface emitting lasers (“VCSEL”s), generating internal heat, such as resistive, inductive and Peltier heaters, or external heating. The miniature analytical device comprises of array of temperature-controlled zones to restrict the volume heated and localize the heating by having the localized heat source comprise an array of emitters or heaters.Type: ApplicationFiled: October 16, 2001Publication date: April 17, 2003Inventors: Michael Greenstein, Frederick Stawitcke, Vladimir Drbal, Ganapati R. Mauze, Rick Pittaro, Richard Pering, Ed Verdonk, Don Alden, Frank Ingle, Klaus Stefan Drese, Hans-Joachim Hartmann, Olaf Soerensen
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Patent number: 5056992Abstract: An apparatus and method are disclosed for an IV pump which can act also as a passive infusion controller. The apparatus has a disposable flow chamber with two pumping subchambers connected by a first collapsible passageway. A pump drive is used to operate the pumping subchambers and includes a first control valve for depressing the first collapsible passageway to control flow between the subchambers and an outlet control valve for depressing an outlet collapsible passageway to control flow of infusate out of the flow chamber. The flow chamber has a base surface and first and second caps, each cap being spaced apart from the base surface and having means for attachment to one of two moveable connector rods. The caps each act as one side of the first and second pumping subchambers, respectively, the base surface being the other side. A flexible wall is connected to the base surface and to each of the caps providing the subchamber volumes therebetween.Type: GrantFiled: February 22, 1989Date of Patent: October 15, 1991Assignee: Hewlett-Packard CompanyInventors: Tad D. Simons, Frederick A. Stawitcke, William M. Reed, Paul A. Tessier, Marc J. Zeitlin
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Patent number: 4857048Abstract: An apparatus and method are disclosed for an IV pump which can act also as a passive infusion controller. The apparatus has a disposable flow chamber with two pumping subchambers connected by a first collapsible passageway. A pump drive is used to operate the pumping subchambers and includes a first control valve for depressing the first collapsible passageway to control flow between the subchambers and an outlet control valve for depressing an outlet collapsible passageway to control flow of infusate out of the flow chamber. The flow chamber has a base surface and first and second caps, each cap being spaced apart from the base surface and having means for attachment to one of two moveable connector rods. The caps each act as one side of the first and second pumping subchambers, respectively, the base surface being the other side. A flexible wall is connected to the base surface and to each of the caps providing the subchamber volumes therebetween.Type: GrantFiled: March 21, 1988Date of Patent: August 15, 1989Assignee: Hewlett-Packard CompanyInventors: Tad D. Simons, Frederick A. Stawitcke, William M. Reed, Paul A. Tessier
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Patent number: 4448192Abstract: A ventilator which accommodates to a patient's efforts in breathing and to his change in respiratory requirements is provided by a system with a novel control law. The novel control law determines a target ideal pressure-volume wave-form which characterizes the patient's respiratory requirements; this waveform is constantly modified and corrected during the course of ventilator operation to enable the patient to breathe with minimum ventilation opposition, or fighting.Type: GrantFiled: March 5, 1982Date of Patent: May 15, 1984Assignee: Hewlett Packard CompanyInventors: Frederick A. Stawitcke, William J. Mordan, Holly B. Jimison, Robert Piziali, Allen K. Ream