Patents Represented by Attorney, Agent or Law Firm Luke Santangelo
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Patent number: 6633017Abstract: An improved system of igniting a plasma using a rapid voltage rise and thus causing ions that may be pre-existing to create secondary electron emission or the like is provided. In one embodiment, the voltage rise can be timed to be comparable to the transit time of the electrons across the plasma. It can also be arranged to achieve a voltage rise in less than 1000 microseconds, to result in a transition time that is less than one hundred times the transit time, to maximize the emission of secondary electrons, or even to merely result in collision energies ranging from 5 to 500 electron volts. The transition time can be controlled through an ignition control that may be programmable, may involve charging output storage devices, or may involve delayed switching to supply the increased voltage to the plasma after the storage elements have been more fully charged.Type: GrantFiled: April 12, 2000Date of Patent: October 14, 2003Assignee: Advanced Energy Industries, Inc.Inventors: Geoffrey N. Drummond, George McDonough, Richard A. Scholl, Tim Kerr, John G. Harpold
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Patent number: 6632260Abstract: Enclosures having adjustable clean gas flow environments and methods of enclosed pressure differential distribution technology. Specifically, clean gas flow enclosures, which provide for the isolation of materials from airborne micro-particulate contamination. An embodiment of the invention utilizes a small footprint, modular, selectable, clean-gas flow environment for handling and isolating materials. The environment can be a clean room class environment by providing filtered gas from a gas flow generator (12) through a gas filter (13) to a filtered gas flow space (20). An embodiment of the invention provides a first plenum (23) and a second plenum (26) so that both a horizontal filtered gas flow and vertical filtered gas flow may be used separately or in combination within the same filtered gas flow space (20).Type: GrantFiled: October 26, 2001Date of Patent: October 14, 2003Assignee: Stratotech CorporationInventors: Warren G. Siemers, Gary D. Hamor
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Patent number: 6616197Abstract: A resilient retention method which retains two assemblies axially through the use of a flange and lip arrangement and simultaneously retains those assemblies rotationally through either a radial detent or a snap spring are shown in variations. The designs are especially configured for molding so that each might utilize the material properties available and yet be economically manufactured. Further, user features including both visual and potentially audible indications of full assembly are incorporated into the designs and automatically achieved. Shut-off valve designs are shown which are automatically delayed in opening until some axial retention occurs to minimize any blow-off or other undesirable operational events. Swivel features may be incorporated when the application requires.Type: GrantFiled: October 23, 2001Date of Patent: September 9, 2003Assignee: Kent Systems, LLCInventor: Richard K. Sampson
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Patent number: 6516300Abstract: A method for establishing certifiable patient informed consent for a medical procedure, where, in one embodiment, the patient interacts with a video training system until mastery of all required information is successfully achieved. Training techniques which permit elicitation of measurable behaviors from a patient as a guide to discerning the level of knowledge of the patient are utilized. Certification is only granted when the measurable behavior approximately coincide with the legal and medical standards for establishing informed consent. The system is capable of adapting to various medical procedures, as well as various patient attitudes and knowledge bases, while still maintaining a level of consistency throughout. In one embodiment, a minimum probability of understanding may be preset, and the training procedure will continue until the actual statistical probability of understanding is at least equal to the preset minimum.Type: GrantFiled: December 6, 1999Date of Patent: February 4, 2003Assignee: InforMedical, Inc.Inventors: Amitabha Rakshit, Wilson A. Judd
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Patent number: 6001224Abstract: An enhanced reactive plasma processing method and system useful for deposition of highly insulating films. A variety of alternative embodiments are allowed for varying applications. In one embodiment, a tapped inductor (13 and 14) is switched to ground (9) or some common level to achieve substantial voltage reversal of about 10% upon detection of an arc condition. This reversal of voltage is maintained long enough to either afford processing advantages or to allow restoration of uniform charge density within the plasma (5) prior to restoration of the initial driving condition. A technique for preventing arc discharges involving periodically either interrupting the supply of power or reversing voltage is effected through a timer system (22) in the power source (1).Type: GrantFiled: September 29, 1995Date of Patent: December 14, 1999Assignee: Advanced Energy Industries, Inc.Inventors: Geoffrey N. Drummond, Richard A. Scholl
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Patent number: 5999909Abstract: A method for establishing certifiable patient informed consent for a medical procedure, where, in one embodiment, the patient interacts with a video training system until mastery of all required information is successfully achieved. Training techniques which permit elicitation of measurable behaviors from a patient as a guide to discerning the level of knowledge of the patient are utilized. Certification is only granted when the measurable behavior approximately coincide with the legal and medical standards for establishing informed consent. The system is capable of adapting to various medical procedures, as well as various patient attitudes and knowledge bases, while still maintaining a level of consistency throughout. In one embodiment, a minimum probability of understanding may be preset, and the training procedure will continue until the actual statistical probability of understanding is at least equal to the preset minimum.Type: GrantFiled: July 31, 1998Date of Patent: December 7, 1999Assignee: Medical Training and Services International, Inc.Inventors: Amitabha Rakshit, Wilson A. Judd
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Patent number: 5996814Abstract: A device and method of supporting a bicycle load in a workstand, wherein the workstand can be supported on only two members which establish three individual points of support. The workstand can utilize at least one rotatable leg to collapse the workstand into a portable and manageable configuration that facilitates transporting and storage. The load support member to which the bicycle is either directly or indirectly coupled can be coupled to the support base off-center from the geometric center of the support base to provide a more stable configuration for the stand as well as to establish the member out of the way of the bicycle which must be supported. In addition, a space saving footprint established by the support base allows the workstand to be positioned against walls and in corners.Type: GrantFiled: July 1, 1997Date of Patent: December 7, 1999Assignee: Ultimate Support Systems, Inc.Inventors: Jonathan P. Workman, Kenneth W. House
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Patent number: 5824875Abstract: Genes which encode ACC synthase are identified for the geranium plant, specifically Pelargonium x hortorum cv sincerity. These genes are shown as modified to achieve a transgenic plant which resists wilting and the like as a result of reduced ethylene production. This alteration is reproduced by the transformed plant. Isolation of high quality mRNA is achieved through use and adaptation of a 2-butoxyethanol precipitation technique using large amount of initial tissue in order to achieve critical mass for precipitation.Type: GrantFiled: October 1, 1996Date of Patent: October 20, 1998Assignee: Colorado State University through its agent Colorado State University Research FoundationInventor: Rajinder S. Ranu
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Patent number: 5799987Abstract: A fluid fitting coupling system which retains two assemblies axially through the use of a flange and lip arrangement and simultaneously retains those assemblies rotationally through either a radial detent or a snap spring are shown in variations. The designs are especially configured for molding so that each might utilize the material properties available and yet be economically manufactured. Further, user features including both visual and potentially audible indications of full assembly are incorporated into the designs and automatically achieved. Shut-off valve designs are shown which are automatically delayed in opening until some axial retention occurs to minimize any blow-off or other undesirable operational events. Swivel features may be incorporated when the application requires.Type: GrantFiled: June 5, 1995Date of Patent: September 1, 1998Inventor: Richard K. Sampson
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Patent number: 5753086Abstract: An apparatus for recycling or decompstiong waste plastic is decomposed in a diluent such as hot oil through actions involving free readical precursors, such as polyvinyl chloride or polyurethane is achieved at low temperatures. The thermal decompostion (or pyrolysis) reaction is for about 1 hour at 375.degree. C. annd usable products, such as distillate, coke and oil are recovered. Additonally the diluent my ber recycled within the apparatus.Type: GrantFiled: September 6, 1995Date of Patent: May 19, 1998Assignee: The University of Wyoming Research Corp.Inventors: Frank D. Guffey, Floyd Alan Barbour
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Patent number: 5747935Abstract: Circuitry and techniques designed to allow stable and continuous delivery of alternating power to a processing plasma with switch-mode power supply (16) include a variety of embodiments. Parallel, series, and other circuit elements connected across switching element (7) are tuned so that energy at other than the fundamental frequency is absorbed and dissipated. This energy may be only at the second harmonic or it may be across broad frequency ranges through selecting high impedance at the fundamental frequency and relatively low impedance at other frequencies. In overcoming instabilities, oscillations, and even changing class of operation of the switch-mode power supply, the stabilizing element absorbs the energy to avoid allowing it to affect switch (7) of power supply (16).Type: GrantFiled: October 14, 1994Date of Patent: May 5, 1998Assignee: Advanced Energy Industries, Inc.Inventors: Robert M. Porter, Michael L. Mueller
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Patent number: 5726364Abstract: A sample introduction system for a flow cytometer allows easy change of sample containers such as test tubes and facilitates use in high pressure environments. The sample container includes a cap having a pressure supply chamber and a sample container attachment cavity. A sample container may be automatically positioned into the attachment cavity so as to sealably engage the end of the sample container as its outer surface. This positioning may be accomplished through some sample introduction mechanism. To facilitate cleaning HPLC tubing and fittings may be used in a manner which facilitates removable of the entire tubing from both the nozzle container and other sample container cap to permit its replacement to avoid contamination. The sample container support may include horizontal stops which loosely limit the movement of the sample container and thus avoid further stresses upon it.Type: GrantFiled: February 10, 1997Date of Patent: March 10, 1998Assignee: The University of WashingtonInventor: Ger Van den Engh
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Patent number: 5718813Abstract: An enhanced reactive plasma processing method and system useful for deposition of highly insulating films. A variety of alternative embodiments are allowed for varying applications. In one embodiment, a tapped inductor is switched to ground or some common level to achieve substantial voltage reversal of about 10% upon detection of an arc condition. This reversal of voltage is maintained long enough to either afford processing advantages or to allow restoration of uniform charge density within the plasma prior to restoration of the initial driving condition. A technique for preventing arc discharges involving periodically either interrupting the supply of power or reversing voltage is effected through a timer system in the power source.Type: GrantFiled: April 2, 1993Date of Patent: February 17, 1998Assignee: Advanced Energy Industries, Inc.Inventors: Geoffrey N. Drummond, Richard A. Scholl
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Patent number: 5704106Abstract: An automatic tubing assembly device of modular design and suitable to utilization with thin-walled, flexible tubing is shown in several embodiments. The device includes a mechanical assembly for pure rectilinear motion to avoid tubing damage and an elongated jaw set (18) which applies a force to the tubing (45) over the fitting (1) involved and which flexes outward over the fitting (1). Use of a springed friction member (54) and sliding cam (21) act to achieve the rectilinear motion. The fitting (1) is supported along its length and the entire device is operable from one lever (7) which has only one degree of freedom and thus lends itself to assembly line automated uses. Additionally, multiple axis fittings can be accommodated through simple reconfiguration of the modular design.Type: GrantFiled: June 29, 1994Date of Patent: January 6, 1998Assignee: Value Plastics, Inc.Inventors: Richard K. Sampson, James K. Sampson
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Patent number: 5702007Abstract: A generally L-shaped bicycle rack includes upper and lower intersecting leg portions, each including side walls having outwardly extending peripheral flanges which may optionally engage nails or screws for the purpose of securing the rack in a selected location. An arcuate well disposed centrally in the rack receives an outer circumferential portion of a bicycle wheel to support a bicycle for storage purposes. Aligned pairs of notches in the peripheral flanges of the upper and lower legs allows one or more of the racks to be secured in a variety of different mounting configurations. In a first alternative, the rack may be secured to a vertical wall to store a bicycle in a vertical orientation. In a second alternative, a plurality of racks may be secured in sequential adjacent relation to form a rack for storing multiple bicycles. A tubular member extending transversely through the upper leg of the rack may receive cables or chains for locking a bicycle to the rack.Type: GrantFiled: February 2, 1995Date of Patent: December 30, 1997Inventors: Gregory G. Fritz, Donald J. Patterson
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Patent number: 5685076Abstract: A collapsible structure having front and back ends with front and back support members includes a single central support member to pass in a direct line along the cover and thus support the entire structure at roughly the center of the cover. The item may be sewn and easily manufactured in a fashion so that upon being collapsed it occupies the smallest possible volume and has no overlapping support members. Finally in pet toy applications crinkly material and washable material may be included.Type: GrantFiled: October 15, 1996Date of Patent: November 11, 1997Assignee: Southern California Foam, Inc.Inventors: Dennis M. Curley, Chris M. Boos
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Patent number: 5657587Abstract: A floating areaway system which can respond to changing soils conditions (such as freezing, expansion, settling, or the like) utilizes a continuously adjustable attachment to the foundation or a free motion support. The system is particularly adapted to overhanging areaway enclosures such as may include an escape dement. The designs can range from slidable retainers to elastic members to rotating elements so that the areaway enclosure can move up or down with the soil. Shields, low friction surfaces, and waterproof elements can be included to assure continuous operation. Installation, whether new or retrofit, is facilitated through individual free motion support brackets which can accommodate previously installed areaway enclosures as well as a new enclosure. The brackets can be designed to be specific to particular designs, generic, removable, and reversible so that the mounting can be in either the interior or the exterior of the enclosure. Integral designs afford efficient manufacture and installation.Type: GrantFiled: September 7, 1995Date of Patent: August 19, 1997Assignee: RM Base CompanyInventor: James A. Gefroh
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Patent number: 5645698Abstract: Both methods and apparatus for achieving topologically precise thin film coating. The system focuses on coating systems to create compact discs using DC magnetron sputtering to avoid the occurrence of mousebites or visual imperfections at the termination edge on a masked substrate. Circuit elements are added to a switch-mode power supply which act to substantially reduce reverse currents after the signal is conditioned by rectifying and filtering a switched output. Fast acting diodes, placed in either series or parallel arrangements within the circuit involving the cathode and anode, are used with a low energy storage switch-mode power supply to completely eliminate the occurrence of mousebites on the aluminum coating or the polycarbonate substrate of the compact disc.Type: GrantFiled: August 25, 1994Date of Patent: July 8, 1997Assignee: Advanced Energy Industries, Inc.Inventor: Manabu Okano
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Patent number: D380295Type: GrantFiled: April 24, 1996Date of Patent: July 1, 1997Inventor: Pamela J. Morris
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Patent number: D388876Type: GrantFiled: December 4, 1995Date of Patent: January 6, 1998Inventor: Richard K. Sampson