Occupant support with a migration sensitive bladder and method for migration detection
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United States of America Patent
Stats
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Sep 8, 2020
Grant Date -
Aug 31, 2017
app pub date -
May 17, 2017
filing date -
Apr 10, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
A method for detecting occupant position change on a support surface includes establishing a rate of change of pressure in a head end test zone and in a foot end test zone, comparing the head end rate to at least one head end rate limit, comparing the foot end rate to at least one foot end rate limit, and inferring, in response to the comparing steps, whether or not occupant migration has occurred. An associated occupant support includes a frame and a mattress. The mattress includes head and foot zones each having at least one pressurizable bladder. The support also includes a controller adapted to compare a head end rate of pressure change to a head end rate limit, to compare a foot end rate of pressure change to a foot end rate limit, and to infer, in response to the comparing steps, whether or not occupant migration has occurred.
First Claim
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Family
International Classification(s)
- 2017 Application Filing Year
- A47C Class
- 1246 Applications Filed
- 892 Patents Issued To-Date
- 71.59 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- A47C Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 8, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 8, 2032 |
