Tub for humidifier
First Claim
Patent Images
1. A humidifier configured to humidify pressurized gas in a CPAP system, the humidifier comprising:
- a tub base configured to be in fluid communication with the pressurized gas, the tub base comprising a bottom side that forms part of a bottom wall of a tub;
a base plate removably attached to a bottom side of the tub base to cover an opening in the bottom side of the tub base and complete the bottom wall of the tub, the base plate forming part of an exterior surface of the tub;
a seal sandwiched between the base plate and the tub base; and
a retainer configured to bias the base plate against the tub base and compress the seal between the tub base and the base plate when the retainer engages the base plate, at least a portion of the retainer being positioned at a periphery of the base plate when the base plate is retained against the tub base.
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Abstract
A humidifier includes a tub configured to hold a supply of water. The tub includes a tub lid and a tub base adapted to be coupled to the tub lid. The tub further includes a base plate formed of a heat conducting material and adapted to be coupled to the tub base and a seal positioned between the base plate and the tub base. The tub also includes a retaining mechanism with at least one projection that projects from the tub base and is configured to force the base plate against the seal so that the seal is secured against the tub base.
248 Citations
26 Claims
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1. A humidifier configured to humidify pressurized gas in a CPAP system, the humidifier comprising:
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a tub base configured to be in fluid communication with the pressurized gas, the tub base comprising a bottom side that forms part of a bottom wall of a tub; a base plate removably attached to a bottom side of the tub base to cover an opening in the bottom side of the tub base and complete the bottom wall of the tub, the base plate forming part of an exterior surface of the tub; a seal sandwiched between the base plate and the tub base; and a retainer configured to bias the base plate against the tub base and compress the seal between the tub base and the base plate when the retainer engages the base plate, at least a portion of the retainer being positioned at a periphery of the base plate when the base plate is retained against the tub base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A humidifier configured to humidify pressurized gas in a CPAP system, the humidifier comprising:
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a tub base with top and bottom sides that are open, the tub base configured to be in fluid communication with the pressurized gas; a base plate that closes the bottom side of the tub base, the base plate being repeatably removable from the tub base; and a seal sandwiched between the base plate and the tub base, wherein when the base plate is attached to the tub base, the base plate is biased against the tub base and the seal is compressed between the tub base and the base plate so that the base plate and the tub base together form a chamber, and wherein the chamber is configured to receive water and the pressurized gas through the top side of the tub base. - View Dependent Claims (22, 23, 24, 26)
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25. A humidifier configured to humidify pressurized gas in a CPAP system, the humidifier comprising:
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a tub base that forms a main body of a tub, the tub base configured to be in fluid communication with the pressurized gas; a base plate that together with the tub base forms an interior chamber of the tub, the base plate being repeatably removable from the tub base; a seal sandwiched between the base plate and the tub base; and a lid movable between an open position and a closed position with respect to the tub base, the lid being configured to enclose the interior chamber of the tub when the lid is in a closed position, wherein when the base plate is secured to the tub base, the base plate is biased against the tub base and the seal is compressed between the tub base, and wherein the base plate and the tub is configured to retain a body of water and humidify the pressurized gas.
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Specification