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Helwig
Adrian Helwig, Duesseldorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20110125435 | Apparatus and method for impedance measurement - A system is provided which comprises a signal generator for generating a periodic excitation signal and an analog to digital converter, wherein the system is configured to apply the periodic excitation signal to a network comprising a known first impedance and a second impedance and to take a first set of M digital samples of a first signal relating to the first impedance and a second set of M digital samples of a second signal relating to the second impedance with a sampling frequency that is an integer multiple of the frequency of the periodic signal. The system is further configured to determine the impedance value of the second impedance by calculating a relative phase difference between the first signal and the second signal using the first set of digital samples and the second set of digital samples. | 05-26-2011 |
Andreas Helwig, Munchen DE
| Patent application number | Description | Published |
|---|---|---|
| 20100272611 | Gas Sensor With Improved Selectivity - The present invention relates to a gas sensor ( | 10-28-2010 |
| 20110071037 | Device and Method for Detecting Trace Gases - The invention relates to a gas detection system ( | 03-24-2011 |
Andreas Helwig, Muenchen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090101165 | Apparatus for Detection of Chemical or Biological Substances and Method for Cleaning the Apparatus - The present invention relates to a device ( | 04-23-2009 |
| 20100062536 | DETECTOR FOR THE DETECTION OF CHEMICAL WARFARE AGENTS AND METHOD OF MANUFACTURE THEREOF - In a method and apparatus for detecting toxic chemical hazardous materials and warfare agents in a gas, the gas is exposed to a substrate with a hydrogen terminated surface. The substrate may be made from a nonconductor material with available surface conductivity, or from a semiconductor material. The electrical resistance at the hydrogen terminated surface is measured to detect the presence of the hazardous materials and warfare agents. A method of producing such a substrate detector is also disclosed. | 03-11-2010 |
David Helwig, St. Joseph, MO US
| Patent application number | Description | Published |
|---|---|---|
| 20100175175 | ELEMENT PROTECTION SYSTEM - An element protection system for protecting wearers from cold and/or wet weather includes a garment portion having a torso section surrounding a torso-receiving cavity and a pair of sleeves, and a storage case portion including a bottom wall and a surrounding sidewall providing a main compartment sized and configured for receiving the garment portion therein. Thus, the garment portion can be stowed in the main compartment. The garment portion extends from the upper margin of the storage case portion, and a reinforcing panel extends from the upper margin over a part of a back panel of the garment portion in covering relationship to the wearers buttocks. The back panel of the garment portion includes a port sized and configured to permit passage therethrough of a strap attachable to a safety harness which can be used to restrain the torso of someone wearing the element protection system. | 07-15-2010 |
Gregory S. Helwig, Granville, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20110311773 | ROOF COVERING HAVING IMPROVED TEAR STRENGTH - A roof covering includes a roofing mat formed from fibers of a fiber material. The fibers are coated with a sizing. The roof covering also includes a coating material that coats the mat. The coating material is based on an organic material. The sizing includes a sulfur-containing material that bonds to the fiber material. The sulfur-containing material has sulfur groups that form cross-links with the organic material. In another embodiment, the coating material contains sulfur added to the organic material. The sizing includes a bonding material that bonds to the fiber material and that bonds to the sulfur. The sulfur forms cross-links with the organic material. | 12-22-2011 |
Rodney H. Helwig, Lexington, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20120066874 | Fastener having a flexible base - Fasteners comprising male and female assemblies. At least one of the male or female assembly may comprise a flexible base that flexes to conform to a non-planar mounting surface. The flexible base is bonded to the stud and/or the socket using techniques that provide a high degree of strength to withstand repeated engagement and disengagement of the fastener. Moreover, in certain embodiments the bonding techniques eliminate the need for mechanical means (for example, threads) to secure the stud to the flexible base. Mechanical tests show that the male assembly according to certain embodiments has 62% more strength than known male assemblies. | 03-22-2012 |