A method for producing crystals and for screening crystallization conditions of chemical materials on distinct metallic islands with specific... Show moreA method for producing crystals and for screening crystallization conditions of chemical materials on distinct metallic islands with specific functional groups, for preparing and screening the conditions necessary to promote a specific polymorph of a crystal, and a means for testing and screening the more precise conditions suitable for achieving a desired size or form of a crystal. Sponsorship: Illinois Institute of Technology United States Patent Show less
A method and apparatus for spectrochemical analysis of a gas is provided in which the subject gas is mixed with a carrier gas and introduced... Show moreA method and apparatus for spectrochemical analysis of a gas is provided in which the subject gas is mixed with a carrier gas and introduced into an analysis space between two electrodes. A continuous direct current discharge between the electrodes is produced which sustains a plasma formed from the carrier gas so that components of the subject gas are excited to luminescence. Characteristic radiation emitted by the components is then detected. The carrier gas has a higher ionization potential than components of the subject gas and, for example, may be a noble gas. The method is operable at atmospheric pressure. The electrodes may be either solid wires or tubes through which the gas mixture enters and leaves the analysis space. Sponsorship: IIT Research Institute United States Patent Show less
Monochrome and color television recording and playback circuitry for coupling with a standard broadcast receiver. Recording signals supplied... Show moreMonochrome and color television recording and playback circuitry for coupling with a standard broadcast receiver. Recording signals supplied to the recording head without further amplification, and with circuitry for maintaining a good visual display during recording, and circuitry for phase correction and pulse modification. Playback circuitry for reduced thermal noise, phase correction and improved response. Frequency modulation sound on video track. Sponsorship: IIT Research Institute United States Patent Show less
A structural member having a core of porous material permitting fluid flow and an outer layer of composite material having rigid matrix with... Show moreA structural member having a core of porous material permitting fluid flow and an outer layer of composite material having rigid matrix with reinforcing material embedded therein. The member finds its primary use in prosthetics. Sponsorship: IIT Research Institute United States Patent Show less
A vehicle capable of both aerial and terrestrial locomotion. The terrestrial and aerial vehicle includes a flying device and a rolling cage... Show moreA vehicle capable of both aerial and terrestrial locomotion. The terrestrial and aerial vehicle includes a flying device and a rolling cage connected to the flying device by at least one revolute joint. The rolling cage at least partially surrounds the flying device and is free-rolling and not separately powered. Sponsorship: Illinois Institute of Technology United States Patent Show less
The invention disclosed is a process to allocate channels in a sectorized and tiered cellular network. A system of allocating cellular... Show moreThe invention disclosed is a process to allocate channels in a sectorized and tiered cellular network. A system of allocating cellular frequencies (channels) to the sectors among the outer tier of cells within a tile is disclosed which maximizes channel set usage within the tile while minimizing co-channel interference between cells. Any unused, or remaining, frequencies for the outer tier of that cell may then be allocated to an inner tier of the cell that has not had a channel allocated thereto. No additional infrastructure or maintenance set-up is required under this technique for allocating the channel to the additional transceiver and a very high degree of channel utilization is achieved. Sponsorship: Illinois Institute of Technology United States Patent Primary US Patent Classification 455/450 US Patent Classification 455/447 US Patent Classification 455/63.4 US Patent Classification 455/63.1 US Patent Classification 455/422.1 US Patent Classification 455/446 US Patent Classification 455/67.11 US Patent Classification 455/509 US Patent Classification 455/524 International Patent Classification H04W72/00 Show less
An implantable drug delivery apparatus including a housing that has a housing chamber. An outer deformable body having a reserve chamber is... Show moreAn implantable drug delivery apparatus including a housing that has a housing chamber. An outer deformable body having a reserve chamber is mounted within the housing chamber. An inner deformable body having a dispensing chamber is mounted within the reserve chamber. A dispensing valve is actuated to an open position to allow a fluidic drug to flow from the dispensing chamber, through the dispensing valve and through a catheter into a body of a patient. The fluidic drug is discharged from the dispensing chamber at a dispensing mass flowrate which is greater than a refilling mass flowrate of the fluidic drug passing from the reserve chamber to the dispensing chamber, when the dispensing valve is in an open position. When the dispensing valve is in a closed position, the fluidic drug is prevented from discharging from the dispensing chamber while a recharging amount of the fluidic drug is capable of flowing from the reserve chamber to the dispensing chamber, until the dispensing chamber is at least partially filled. The outer deformable body is normally forced or urged in a direction or manner that tends to reduce a volume of the reserve chamber. Sponsorship: Illinois institute of Technology United States Patent Show less
A method for detecting a mass density image of an object. An x-ray beam is transmitted through the object and a transmitted beam is emitted... Show moreA method for detecting a mass density image of an object. An x-ray beam is transmitted through the object and a transmitted beam is emitted from the object. The transmitted beam is directed at an angle of incidence upon a crystal analyzer. A diffracted beam is emitted from the crystal analyzer onto a detector and digitized. A first image of the object is detected from the diffracted beam emitted from the crystal analyzer when positioned at a first angular position. A second image of the object is detected from the diffracted beam emitted from the crystal analyzer when positioned at a second angular position. A refraction image is obtained and a regularized mathematical inversion algorithm is applied to the refraction image to obtain a mass density image. Sponsorship: Illinois Institute of Technology United States Patent Show less
