Abstract: Shared-current electronic systems (120, 130, 140, 150, 160, 170, 180, 190, and 200) include two or more solid-state electronic devices, such as a solid-state amplifying device (Q1), a baseband processor (110), and a multiplier/up-converter (112), that are connected in dc series or dc series-parallel, that may be connected in rf series, and that either fixedly or variably share percentages of a dc source voltage. Various embodiments produce separate rf outputs, variably shift the phase of a single rf output, variably shift rf power between/among rf outputs, or produce a frequency-compressed modulation. The apparatus includes means (122, 162, 162A, and /or 162B) for precisely proportioning percentages of the regulated dc source voltage to the dc series-connected electronic devices irrespective of production variations in operating parameters of the electronic devices and/or drift of the electronic devices.
Type:
Grant
Filed:
January 3, 2005
Date of Patent:
March 13, 2007
Assignee:
Emhiser Research, Inc.
Inventors:
Barry Arthur Lautzenhiser, Lloyd Lynn Lautzenhiser
Abstract: Scanning localized evaporation and deposition of an evaporant on a substrate utilizes a mask assembly comprised of a series of mask elements with openings thereon and spaced apart in a stack. The openings are aligned so as to direct the evaporant therethrough onto the substrate. The mask elements are heated and the stack may include a movable shutter element to block openings in adjacent mask elements. The evaporant streams are usually vertical but some may be oblique to the substrate, and they may be of different materials.
Type:
Grant
Filed:
May 3, 2005
Date of Patent:
October 3, 2006
Assignee:
Optoelectronic Systems
Inventors:
Daniel Harrison Grantham, Thomas Samuel Phely-Bobin, Fotios Papadimitrakopoulos, Faquir C. Jain
Abstract: A fountain apparatus for use with a flowable food media includes a recipient for receiving the food media therein, a recipient and an output port. The recipient is heatable within a predetermined temperature range for maintaining the food media within the temperature range. The output port connects to the recipient downstream of an aperture extending through a wall thereof and has a passageway extending there through for receiving the food media from the aperture. The passageway defines an inlet opening that is in fluid communication with the recipient via the aperture and an outlet opening that has an opening mechanism to selectively control the opening thereof. A heating member is thermally connected to the output port for warming up the same to maintain the food media therein within the temperature range.
Abstract: A supporting frame is used to solidly bridge to the two metallic contacts of a surface mount diode chip. Any bending or twisting stress between the two contacts is borne by the supporting frame instead of the diode chip. Otherwise the stress may damage the diode chip.
Abstract: A large low cost vessel for holding flowable materials is disclosed. The vessel has a body formed of elongate rollable sheets of buoyant material that when assembled into an upwardly concave vessel having bulkheads at its ends, the vessel is self-supporting in both water and land and does not require additional forms or supports to maintain its shape.
Abstract: A wheel-through ski for the landing gear of an aircraft is disclosed. The ski has an airfoil shape, and the ski and its attachments are aerodynamically clean. The ski is provided with a three sided recess that permits the mounting of the ski on the aircraft without lifting the landing gear off the ground. The members of the articulated attachment between the ski and the aircraft are joined by a removable pin and are fixedly attached to the ski and landing gear. The ski is of aircraft construction. It has a thin skin, air frame-like internal structures, foam material internal cores that provide stiffness to the ski and wear strips on the bottom of the ski.
Abstract: A clip is used to clamp a LED in place in a LED module. The clip has pliable conducting cover and can be latched to the upper lead metal of the LED module. The clip can be lifted for replacing a defective or color LED. A plurality of replaceable LEDs can be mounted a common metal substrate to form a display panel, and each LED can be clamped in position with clips straddling between parallel upper lead metal for electrical coupling to the top electrodes of the LED.
Abstract: A valve assembly is disclosed which effectively partitions a syringe into proximal and distal chambers to provide a multi-chamber, sequentially dispensing syringe apparatus. The valve assembly may be effectively used with a variety of standard, currently available commercial syringes and pre-filled syringes. Incorporated in the valve assembly is a valved stopper having a valve (which may be a slit valve), an impact sensor which opens the valve upon impact between the valve assembly and internal distal end of the syringe and a gas separator which separates liquid from gas disposed in the proximal chamber to assure gas is not delivered therefrom. The valve assembly is displaced as a plunger of the syringe is displaced via communication through fluid in the proximal chamber of the syringe. The actuator has a latching feature which latches the valve to an open state after being opened by the impact sensor. The gas separator has a proximally disposed orifice which facilitates priming.
Type:
Grant
Filed:
May 3, 2004
Date of Patent:
February 14, 2006
Assignee:
Infusive Technologies, LLC
Inventors:
Michael Wallace Howlett, James Victor Mercer, Gale H. Thorne, Jr., Gale H. Thorne
Abstract: This invention discloses novel device structures for full color flat panel displays utilizing pseudomorphically cladded quantum dot nanocrystals. Different colors are obtained by changing the core size and composition of the quantum dots while maintaining a nearly defect-free lattice at the core-cladding interface. Light emission from the quantum dot core is obtained either by injection or by avalanche electroluminescence. A nanotip emitter device is also presented. These generic devices can be addressed using a variety of conventional display drivers, including active and passive matrix configurations.
Type:
Grant
Filed:
March 22, 2004
Date of Patent:
January 31, 2006
Assignee:
University of Connecticut
Inventors:
Faquir C. Jain, Fotios Papadimitrakopoulos
Abstract: Alternate layers of wide band gap and narrow band gaps of different kinds of semiconductors are used to form multiple channels of a FET. The channels are doped or formed as 2-DEG/2-DHG in narrow band semiconductor by charge supply layer in the wide band gap semiconductor. The different kinds of semiconductors form heterojunctions to confine the electrons/holes in separate thin spikes layers. A number of spikes (3–10 nm thick) of different doped or 2-DEG/2-DHG concentrations in various channels can result in overall electron concentration gradient such as a 1/x3 electron/hole concentrations profile. Such an electron/hole concentration gradient can result in a linear variation of drain current with voltage to obtain a wide dynamic range.
Type:
Grant
Filed:
June 24, 2002
Date of Patent:
January 31, 2006
Assignee:
Epitaxial Technologies
Inventors:
Ayub M Fahimulla, Harry Stephen Hier, Olaleye A. Aina
Abstract: A non-contacting sensor based on inductive coupling for detecting failure initiation, and crack propagation in composite materials is disclosed. A very low cost crack sensing transducer or test pattern that can be imbedded into a structural material, interrogated, and powered wirelessly is described. A detection method for interrogating the crack sensor utilizing RF inductive coupling is disclosed. The proposed sensor consists of minimal components resulting in maximum reliability.
Abstract: The present invention provides a process to create without mechanical agitation a zone of low shear, low turbulence flow pattern within a continuous liquid phase contained in a vessel and comprising a dispersed phase consisting of particles or immiscible liquid droplets which have a density different from and should be distributed within the continuous phase without excessive agglomeration or breakups in order to largely preserve the initial particle size distribution, by a continuous or periodic re-circulation of at least a part of the continuous phase which is preferably free of dispersed particles or droplets.
Type:
Grant
Filed:
April 27, 2004
Date of Patent:
September 13, 2005
Assignee:
NOVA Chemicals Inc.
Inventors:
Karel Cornelis Bleijenberg, Grazyna Petela
Abstract: A non-fused electrical slide switch. A handle assembly is operatively connected to a base, between on and off positions, and movable relative to a cover. The base has two pair of raised landings rising above four contact strips. Each pair of raised landings are disposed between one load and one line contact strip of the four contact strips and between the one load contact strip and partitions of the base, respectively. A shoe assembly includes a pair of contact shoes and at least one pair of springs biasing the pair of contact shoes. Depending portions of each contact shoe are in direct contact with associated load and line contact strips allowing electrical communication therebetween. The two pair of raised landings prevent arcing as the handle assembly traverses the on/off positions by raising the depending portions of each contact shoe immediately after they leave contact with the associated load and line contact strips.
Abstract: A filter element of an air filter includes a main body and a substrate. The far infrared emission powder substances are embedded at certain grain sized and at certain ratio to the substrate, thereby forming the main body that is adapted in form to various internal combustion engines. The resonance effect will be created by means of the far infrared emission substances in the filter element of the air filter, thereby making tiny the molecular cluster of water in the moisture-containing air entering into the internal combustion engine for combustion, increasing the molecular freedom, enlarging the contact surface of the oil gas with the air. Therefore, it's easier that the oxygen-containing particles and the oil gas are evenly mixed for reaching an optimal mixture ratio of the original design standard.
Abstract: Divided-voltage FET amplifiers (10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 130, 140, 150, 160, 170, 180, 200, or 220) include two or more solid-state current devices, preferably gallium arsenide FETs (Q1, Q2, Q4, Q5, Q6, and/or Q8), connected in series or series-parallel for dc operation, and connected in parallel for rf operation, thereby improving power efficiency by using the same current two or more times to develop rf power. Various ones of the embodiments produce separate rf outputs, separately amplify two rf outputs and subsequently combine them into a single rf output, and/or selectively phase shift rf outputs. Isolation between rf frequencies and dc voltages includes using decoupling capacitors with selected resonant frequencies and low effective series resistances (ESRs) and using inductors with selected self-resonant frequencies for rf chokes.
Type:
Grant
Filed:
June 24, 2003
Date of Patent:
July 26, 2005
Assignee:
Emhiser Research, Inc.
Inventors:
Barry Arthur Lautzenhiser, Lloyd Lynn Lautzenhiser
Abstract: The electrodes of a light emitting diode (LED) is coupled to the terminals of a package with solderless pressure contacts. Each package is housed in a module with a bed on which the bottom electrode of the LED rests, and a pressure plate which is coupled to the top electrode of the LED. The pressure plate slides along four vertical posts to exert pressure to an LED package against a bed to form solderless pressure contacts. A plurality of LED packages can be lined up in a row to form a light strip, with the top pressure plate extended to form the bed of an adjacent module. A plurality of LED packages can also be arranged a matrix array display panel, where a plurality of lower terminals rests on one row of common bed of a number of parallel horizontal common beds, and where a plurality of upper terminals are pressed under a column of parallel vertical common pressure plates, so that any individual LED at the cross-point of a common bed and a common pressure can be randomly accessed.
Abstract: Interpolymer resin particles comprised of 20% to 80% by weight polyolefin, e.g. polyethylene and 80% to 20% by weight of an in situ polymerized vinyl aromatic resin, e.g. polystyrene or poly(styrene-butyl acrylate) and forming an interpenetrating network of polyolefin and vinyl aromatic resin particles. The interpolymer particles are impregnated with a volatile hydrocarbon blowing agent, and limonene, e.g. d-limonene, ranging from about 0.1 to about 5 parts, preferably 0.1 to 1 part by weight, based on 100 parts by weight of the interpolymer particles, for improved expandability and a pleasant fragrance.
Abstract: Shared-current electronic systems (10, 20, 26, 30, 38, 48, 66, 70, 82, 90, 96, 100, 104, 108, 118, and 122) include two or more solid-state electronic devices, such as a solid-state amplifying device Q1, a baseband processor 110, and a multiplier/upconverter 112, that are connected in dc series or dc series-parallel, and that either fixedly or variably share percentages of a dc supply voltage. Various embodiments produce separate rf outputs, variably shift the phase of a single rf output, variably shift rf power between/among rf outputs, or produce a frequency-compressed modulation. RF decoupling of the dc series-connected electronic devices comprises making an effective series resistance (ESR) of an rf decoupling capacitance lower than the ESR of a porcelain capacitor that resonates at the operating frequency of the electronic device that is being decoupled.
Type:
Grant
Filed:
August 20, 2003
Date of Patent:
May 31, 2005
Assignee:
Emhiser Research, Inc.
Inventors:
Barry Arthur Lautzenhiser, Lloyd Lynn Lautzenhiser
Abstract: A socket for testing integrated circuit has opposite cantilever probing pads hinged at the far ends of the cantilevers to a circuit board. The leads of the IC are pressed over the free nearer ends of the cantilevers. Cushions are inserted under the two free nearer ends of the cantilevers to absorb in the pressure of the IC leads. For in-line lead IC packages, a common cushion can be used for each line of leads. Metallic pedestals can be mounted on the between the nearer ends of the cantilever and touching the IC under test for heat sinking and common ground. The pedestals can be inserted through the circuit board from a base plate at the bottom of the circuit board.