Willkens
Craig Willkens, Fort Wayne, IN US
Patent application number | Description | Published |
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20110253696 | Ceramic Heating Device - New ceramic resistive igniter elements are provided that comprise one or more portions provided with one or more surface patterns to thereby modify the electrical pathway and, further, modify the resistance in the one or more portions. New methods for fabricating resistive igniter elements are also provided wherein one or more surface patterns are provided, for example post densification, wherein the surface pattern(s) modify the electrical pathway through the elements as compared with the electrical pathway prior to disposition of the surface pattern(s). In particular, one or more interruptions are provided in the electrical pathway of an element such that the electrical pathway is modified and, further the resistance through the element is modified. | 10-20-2011 |
Craig A. Willkens, Fort Wayne, IN US
Patent application number | Description | Published |
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20100035747 | PARTIALLY STABILIZED ZIRCONIA MATERIALS - A ceramic material formed from a mixture including between about 50 wt % and about 85 wt % of a first zirconia-based material comprising between about 2 mol % and about 6 mol % yttria and between about 5 wt % and about 50 wt % of a second zirconia-based material comprising not greater than about 1 mol % yttria. The mixture can further include between about 1 wt % and about 10 wt % of an alumina material. | 02-11-2010 |
Craig A. Willkens, Sterling, MA US
Patent application number | Description | Published |
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20080314890 | Ceramic igniters - Ceramic igniters are provided that comprise at least three zones of differing electrical resistance, preferably in sequence a first conductive zone of relatively low resistance, a power booster or enhancement zone of intermediate resistance, and a further hot or ignition zone of high resistance. Igniters of the invention can provide extremely high speeds (low time-to-temperature). | 12-25-2008 |
Craig Andrew Willkens, Auburn, IN US
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20160109125 | HOT SURFACE IGNITERS AND METHODS OF MAKING SAME - A method of making a hot surface igniter is described. A silicon carbide composition that includes both fines fraction and a coarse fraction is sintered in a nitrogen and argon reducing atmosphere in a manner that controls the incorporation of nitrogen with in the lattice of recrystallized silicon carbide. The controlled incorporation of nitrogen in the lattice provides enhanced control over heating and electrical properties, while simultaneously achieving a lower surface area fully recrystallized structure for oxidation resistance and long service life. | 04-21-2016 |
Matthew F. Willkens, Seattle, WA US
Patent application number | Description | Published |
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20110088979 | CARGO TRANSPORTER WITH AUTOMATIC DATA COLLECTION DEVICES - A cargo transportation device includes a lift assembly for raising and lowering cargo and an operator cabin in which an operator controls the lift assembly. A load backrest is coupled to the cabin, and an automatic data collection device, which is configured to interrogate wireless communication devices, is coupled to the load backrest. The cargo transportation device includes a computing device having logic for controlling the automatic data collection device and logic for controlling the lift assembly, and a display device in communication with the computing device. The display device is coupled to the cabin and configured to provide the operator with information from the computing device. | 04-21-2011 |