Walter, MN
Erich C. Walter, Woodbury, MN US
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20090174925 | ELECTROCHROMIC DEVICE - An electrode that includes a transparent substrate having a first and second surface; a conductive layer disposed on the second surface of the substrate; and an electrode layer disposed on the conductive layer, wherein the electrode layer includes doped tin oxide nanoparticles and an organic binder, and wherein the electrode layer is transparent. Also disclosed is a method of making such an electrode and electrochromic articles including such an electrode. | 07-09-2009 |
20110050678 | FAST TRANSITIONS OF LARGE AREA CHOLESTERIC DISPLAYS - A gray scale drive scheme for passive matrix displays, more specifically cholesteric liquid crystal displays. Prior to writing an image, the display can be given a black appearance by first driving the pixels to a homeotropic state, then driving the pixels to a focal conic state. The drive scheme then resets pixels by driving the selected pixels to a homeotropic state. Selecting and non-selecting row voltage signals are then used in combination with column voltage signals to write an image to the display. | 03-03-2011 |
Jesse Jon Walter, Crystal, MN US
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20100102937 | Method and Apparatus for Stimulating Power Line Carrier Injection with Reactive Oscillation - Stimulating power line carrier injection with reactive oscillation comprises exciting a tank circuit to oscillate at the carrier frequency by sinking pulses of current between one node of a capacitor in the tank circuit and the other node of the capacitor. A power transformer is connected to a distribution system to inject power line carrier onto the power line. An excitation circuit sinks short pulses of current between one node of a capacitor and the other node of the capacitor that is connected in a tank circuit arrangement with an inductor and the secondary winding of the power transformer. The tank circuit oscillates at the frequency of the excitation pulses if the resonant frequency of the tank circuit is close to the frequency of excitation. The oscillating current is coupled onto the power line system through the power transformer. The phase of the power line carrier signal is shifted by shifting the phase of the excitation pulses. | 04-29-2010 |
Larry A. Walter, Minneapolis, MN US
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20090105736 | ROTATIONAL ATHERECTOMY DEVICE WITH COUNTERWEIGHTING - The invention provides a rotational atherectomy device having a flexible, elongated, rotatable drive shaft with an abrasive section comprising an enlarged diameter section of the drive shaft or, alternatively, a solid abrasive crown which may be attached to the drive shaft. The device further comprises a proximal and/or a distal counterweight attached to the drive shaft, spaced from the abrasive section wherein each counterweight has its center of mass offset from the longitudinal axis of the drive shaft to stimulate orbital motion by the abrasive section. When placed within an artery against stenotic tissue and rotated at sufficiently high speeds (e.g., in the range of about 20,000 rpm to about 200,000 rpm) the orbiting nature of the abrasive section causes such section to rotate as to open the stenotic lesion to a diameter substantially larger than the resting outer diameter of the abrasive section. | 04-23-2009 |
Lee Walter, Plymouth, MN US
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20100177446 | MICROACTUATOR WITH SELF-ASSEMBLED MONOLAYER ENCAPSULANT - A microactuator comprises a mounting block, a head suspension, a compliant joint for connecting the mounting block to the head suspension, and a piezoelectric element for deforming the compliant joint in order to rotate the head suspension with respect to the mounting block. An encapsulant covers an exposed surface of the microactuator. The encapsulant comprises a self-assembled monolayer formed of an organosilicone or organosilane, where the self-assembled monolayer has a self-limiting thickness of one layer of a molecule. | 07-15-2010 |
Mark Walter, Jackson, MN US
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20140367413 | LOW RATE METERING WHEEL FOR COARSE GRANULES - A metering wheel includes a shaft having a longitudinal axis, a plurality of first wheel sections, and a plurality of second wheel sections. Each first wheel section has a fluted exterior surface and is rotatably coupled to the shaft. Each second wheel section has a cylindrical exterior surface and is co-axial with the shaft and rotatable independently of the shaft. In another aspect, at least one of the plurality of first wheel sections has a plurality of protrusions on the exterior surface defining a plurality of valleys therebetween, wherein at least one protrusion does not extend an axial length of the first section. In yet another aspect, a metering assembly comprises a metering wheel and a chute divider. The chute divider comprises a wall positioned proximate a longitudinal mid-point of one of the plurality of first sections or one of the plurality of second sections. | 12-18-2014 |
Philip S. Walter, Eden Prairie, MN US
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20140081358 | SYSTEMS AND METHODS FOR USE IN TREATING SENSORY IMPAIRMENT - Methods and systems for use in treating one or more patient's sensory impairment, e.g., associated with peripheral neuropathy. An exemplary system may be configured to generate treatment information for treating sensory impairment in at least one body portion using photonic energy from a therapeutic laser based on data indicative of damage. | 03-20-2014 |
Richard L. Walter, Saint Paul, MN US
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20080207794 | POLYMERIC FIBERS AND METHODS OF MAKING - Polymeric fibers and methods of making the polymeric fibers are described. The polymeric fibers are crosslinked hydrogels or dried hydrogels that are prepared from a precursor composition that contains polymerizable material having an average number of ethylenically unsaturated groups per monomer molecule greater than 1.0. The polymeric fibers can contain an optional active agent. | 08-28-2008 |
20080241733 | RADIATION CURABLE THERMAL TRANSFER ELEMENTS - Radiation curable thermal transfer elements including a substrate and a light-to-heat conversion layer overlaying the substrate, and processes to make the thermal transfer elements. The light-to-heat conversion layer is derived from a radiation curable material capable of being cured by exposure to radiation at a curing wavelength and an imaging radiation absorber material not substantially increasing radiation absorbance at the curing wavelength. The radiation curable transfer elements can be used in processes for making organic microelectronic devices. | 10-02-2008 |
20080300339 | POLYMERIC BEADS AND METHODS OF MAKING POLYMERIC BEADS - Polymeric beads and methods of making the polymeric beads are described. The polymeric beads are crosslinked hydrogels or dried hydrogels. The polymeric beads are formed from droplets of a precursor composition that are exposed to radiation. The droplets are totally surrounded by a gas phase. The precursor composition contains a polar solvent and a polymerizable material miscible in the polar solvent. The polymerizable material has an average number of ethylenically unsaturated groups per monomer molecule equal to at least 1.2. | 12-04-2008 |
20150027625 | HYDROPHILIC GEL MATERIALS AND METHODS OF MAKING - The present disclosure describes articles, such as medical articles, containing a substrate having disposed thereon a hydrophilic gel material (e.g., a shaped hydrophilic gel material or a coating of a hydrophilic gel material) and methods for making such articles. Methods are provided for making hydrophilic gel materials from a precursor composition that contains a polar solvent and a polymerizable material that is miscible with the polar solvent. | 01-29-2015 |
Richard L. Walter, St. Paul, MN US
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20100266794 | HYDROPHILIC GEL MATERIALS AND METHODS OF MAKING - The present disclosure describes articles, such as medical articles, containing a substrate having disposed thereon a hydrophilic gel material (e.g., a shaped hydrophilic gel material or a coating of a hydrophilic gel material) and methods for making such articles. Methods are provided for making hydrophilic gel materials from a precursor composition that contains a polar solvent and a polymerizable material that is miscible with the polar solvent. | 10-21-2010 |
20110082068 | METHOD OF MAKING A CLEANING SOLUTION FROM HYDROGEL CLEANING CONCENTRATE AND PACKAGED CLEANING CONCENTRATE - Methods of making a (e.g. dilute) cleaning solution from a hydrogel cleaning concentrate, packages of hydrogel cleaning concentrate, and methods of making a hydrogel cleaning concentrate are described. | 04-07-2011 |
20130059105 | METHODS FOR PRODUCING AN AT LEAST PARTIALLY CURED LAYER - Methods for producing an at least partially cured layer by applying a layer including a (meth)acrylate-functional siloxane to a surface of a substrate, and irradiating the layer in a substantially inert atmosphere with a short wavelength polychromatic ultraviolet light source having a peak intensity at a wavelength of from about 160 nanometers to about 240 nanometers to at least partially cure the layer. Optionally, the layer is at a curing temperature greater than 25° C. In some embodiments, the layer has a thickness of about 0.1 micrometers to about 1 micrometer. In certain embodiments, the layer is substantially free of a photoinitiator and/or an organic solvent. In some particular embodiments, irradiating the layer with a short wavelength polychromatic ultraviolet light source takes place in an inert atmosphere including no greater than 50 ppm oxygen. The substantially cured layer may be a release layer or a low adhesion backsize (LAB). | 03-07-2013 |