Alcohol or drugs breath detecting devices
First Claim
1. Apparatus for detecting the presence of alcohol in expired breath, from a subject, in the atmosphere, comprising a gas sampler, a detector for the presence of alcohol in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when alcohol is detected, a presence sensor for sensing the presence of a subject in relation to the gas sampler, and an automatic controller for actuating the sampler and detector in response to a signal from a presence sensor.
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Accused Products
Abstract
Apparatus for detecting the presence of alcohol in expired breath in the atmosphere, comprising a gas sampler, a detector for the presence of alcohol in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when alcohol is detected, and an automatic controller for actuating the sampler and detector in response to a signal from a sensor arranged to be responsive to the presence of a subject to be tested.
51 Citations
19 Claims
- 1. Apparatus for detecting the presence of alcohol in expired breath, from a subject, in the atmosphere, comprising a gas sampler, a detector for the presence of alcohol in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when alcohol is detected, a presence sensor for sensing the presence of a subject in relation to the gas sampler, and an automatic controller for actuating the sampler and detector in response to a signal from a presence sensor.
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13. Apparatus for detecting the presence of drugs in the expired breath, from a subject, in the atmosphere, comprising a gas sampler, a detector for the presence of drugs in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when drugs are detected, a presence sensor for sensing the presence of a subject in relation to the gas sampler, and an automatic controller for actuating the sampler and detector in response to a signal from a presence sensor.
- 14. Apparatus for detecting the presence of alcohol in the expired breath, from a subject, in the atmosphere, comprising a gas sampler, a detector for the presence of alcohol in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when alcohol is detected, an acoustic transducer sensitive to speech and providing a basic speech signal and a proximity or presence sensor sensitive to the presence of an adjacent human body and producing a proximity signal or modulation, and means for detecting a simultaneous or concurrent combination of speech and presence, and an automatic controller for actuating the sampler and detector in response to the detection of the combination of speech and presence.
- 16. Apparatus for detecting the presence of drugs in the expired breath, from a subject, in the atmosphere, comprising a gas sampler, a detector for the presence of drugs in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when drugs are detected, an acoustic transducer sensitive to speech and providing a basic speech signal and a proximity or presence sensor sensitive to the presence of an adjacent human body and producing a proximity signal or modulation, and means for detecting a simultaneous or concurrent combination of speech and presence, and an automatic controller for actuating the sampler and detector in response to the detection of the combination of speech and presence.
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18. Apparatus for detecting the presence of alcohol in the expired breath, from a subject, in the atmosphere comprising a gas sampler, a detector for the presence of alcohol in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when alcohol is detected, a microphone responsive to speech and an automatic controller for actuating the sampler and detector in response to the subject'"'"'s speech being detected by the microphone.
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19. Apparatus for detecting the presence of drugs in the expired breath, from a subject, in the atmosphere comprising a gas sampler, a detector for the presence of drugs in a gas sample, an output indicator or recorder coupled to the detector to provide an output signal when drugs are detected, a microphone responsive to speech and an automatic controller for actuating the sampler and detector in response to the subject'"'"'s speech being detected by the microphone.
Specification