
US Patent No: 6,206,003
Number of patents in Portfolio can not be more than 2000
Mask with integral valve
Stats
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Mar 27, 2001
Issued date -
Dec 11, 1998
filing date -
09/210,035
serial no -
Expired
status
Importance
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Abstract
A mask for transmitting gases to and from a patient or other user includes a valve which selectively blocks or enables the flow of gases through a port. In one embodiment, the state of the valve is automatically controlled in response to whether the mask is in contact with the patient. In another embodiment, the valve on the mask is manually controlled.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,955,374 Closed cycle gas mask and breathing equipment for operation under pressure having a severance-operated connection shut-off for the breathing equipment | 1 | 1989 | |
| 5,070,872 Metering device for a lung-demand valve | 3 | 1990 | |
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| 5,651,361 Breathing apparatus | 11 | 1995 | |
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| 5,645,049 Exhalation valve for face mask with spacer chamber connection | 52 | 1994 | |
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| 5,944,054 Valve for breathing systems | 12 | 1998 | |
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| 6,016,802 Breathing apparatus and facepiece therefor | 11 | 1997 | |
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| 5,913,307 Breathing protection equipment with operating mode indication | 10 | 1997 | |
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| 4,827,964 System for metering of breathing gas for accommodation of breathing demand | 28 | 1987 | |
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| 5,057,822 Medical gas alarm system | 57 | 1990 | |
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| 5,438,981 Automatic safety valve and diffuser for nasal and/or oral gas delivery mask | 100 | 1993 | |
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| 4,433,685 Pressure demand regulator with automatic shut-off | 22 | 1982 | |
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| 4,245,631 Frigid air respirator | 10 | 1979 | |
| 5,295,478 Mouth-to-mask resuscitator | 22 | 1993 | |
| 2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM | 2009 | ||