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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 6538728 | Gas sensor with open optical measurement path The invention relates to a gas sensor with an open optical measurement path for optical measurement of at least one gas component, having a light source unit (1), a detector unit (2), between which units the optical measuring path (13) extends, and having... | 03/25/2003 |
| 6464941 | Breath alcohol measuring apparatus having a sample intake channel and a temperature sensor mounted therein A breath alcohol measuring apparatus includes a sample intake channel (7) for receiving the respiratory gas sample and a temperature sensor mounted in the sample intake channel (7). The breath alcohol measuring apparatus is so improved that the influence ... | 10/15/2002 |
| 6415646 | Method for measuring gas concentrations The invention is directed to a method for measuring gas concentrations with a measuring head which is provided with a satellite-supported global positioning device. With the method, gas concentrations at various locations can be determined. The position o... | 07/09/2002 |
| 6338341 | Protective breathing mask A protective breathing mask has a connector housing unit having a connector housing for accommodating breathing mask components. The connector housing unit has a flange-like collar extending from the connector housing. The flange-like collar has a connect... | 01/15/2002 |
| 6305370 | Voice transmitter for a breathing protective mask The invention is directed to a voice transmitter for a breathing protective mask. The voice transmitter includes a membrane housing (2) and a clamping ring (3) which can be connected to the membrane housing (2). The voice transmitter also includes a voice... | 10/23/2001 |
| 6289718 | Arrangement for detecting a gaseous component in a gas flow The invention is directed to an arrangement for detecting a gaseous component in a gas flow which reaches a measuring chamber (4) via a sample intake line (3). The arrangement includes a flow throttle (8) in the sample intake line (3) and has a pressure s... | 09/18/2001 |
| 6251244 | Electrochemical measuring cell for detecting hydride gases The invention is directed to an electrochemical measuring cell for detecting hydride gases, preferably arsine and phosphine. The measuring cell includes at least one working electrode (3) made of a catalytically inactive material and a reference electrode... | 06/26/2001 |
| 6227198 | Underwater breathing apparatus An underwater breathing apparatus is so improved that it is simple to manufacture and that it provides a decoupling of the breathing gas conducting components and attachment elements. A support vest (2) is provided which includes an inner enclosure (3) an... | 05/08/2001 |
| 6096558 | Process for calibrating a breath alcohol-measuring instrument A process for calibrating a breath alcohol-measuring instrument (7) with a calibrating gas generator (1) with a liquid container (2) for aqueous ethanol solution and air feed device, which allow air to bubble through the ethanol solution and for passing g... | 08/01/2000 |
| 6075444 | Arrangement for blocking the operation by an operator of a vehicle or a machine The invention is directed to an arrangement for blocking the operation by an intoxicated operator of a machine or a motor vehicle. The arrangement has a measuring apparatus which determines the blood alcohol content of the operator and an evaluation unit ... | 06/13/2000 |
