System and method for detecting a leak in an air bed
AssigneeSelect Comfort Corporation
InventorPaul James Mahoney
Life of this patent
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Abstract
A leak detection method for an air bed having an air chamber comprises adjusting the air chamber to a predetermined pressure level, sensing a first pressure value of the air chamber after a first time interval, sensing a second pressure value of the air chamber after a second time interval, determining a pressure change in the air chamber, detecting whether the air chamber is leaking by comparing the pressure change with a second pressure value, and displaying a leak detection indicator. In one embodiment, the second pressure value is a pressure change in a second air chamber. In another embodiment, the second pressure value is an expected pressure change of the air chamber that is calculated based upon changes in ambient temperature and barometric pressure.
Claims10
A leak detection method for an air bed having a first chamber and a second chamber, the method comprising:
- adjusting the first and second chambers to an initial pressure level;
- sensing a first pressure value of the first chamber and a first pressure value of the second chamber after a first time interval;
- sensing a second pressure value of the first chamber and a second pressure value of the second chamber after a second time interval;
- determining a pressure change of the first chamber;
- determining a pressure change of the second chamber;
- comparing the pressure change of the first chamber with the pressure change of the second chamber to determine if there is a leak in the first chamber or the second chamber;
- and
- displaying a leak detection indicator based upon the pressure changes of the first and second chambers;
- wherein a leak detection indicator signifying that both the first chamber and the second chamber are leaking is displayed when the pressure changes of the first and second chambers both exceed a maximum acceptable pressure change value.
Dependencies are inferred from the claim text.