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US 4,361,137 AGranted
Incubator having warm air curtain across access opening
AssigneeAir-Shields, Inc.
InventorJames R. Grosholz
Life of this patent
Estimating the term…
Abstract
An incubator arranged for developing a warm air curtain (30) across the opening created when the access door (22) of the incubator is opened.
Claims19
An incubator comprising:
- a base having an infant support and three air flow passage means for permitting air flow between the space beneath said infant support and the space above said infant support, the first and second air flow passage means opening at opposite ends of said infant support and the third air flow passage means opening at the front side of said infant support;
- a hood surmounting said base and adapted to enclose said infant support and said air flow passage means, the front wall of said hood having an access door movable between a closed position and an open position;
- a source of conditioned air within said base and below said infant support;
- means for circulating said conditioned air from below said infant support into said hood through said first and third air flow passage means and back to below said infant support through said second air flow passage means;
- and sealing means responsive to movements of said door for sealing said third air flow passage means when said door is in said closed position and for uncovering said third air flow passage means when said door is in said open position.
2 more elements
An incubator comprising:
- a base having an infant support and defining a space therein below said infant support;
- a hood surmounting said base and adapted to enclose an infant resting on said support and defining a space above said infant support, the walls of said hood being spaced from said infant support and forming a plurality of air flow passages therebetween, said hood having an access door and one of said air flow passages extending along said door;
- a source of conditioned air within said base and below said infant support;
- means for circulating said conditioned air between said spaces beneath and above said infant support through said air flow passages;
- and air flow control means responsive to movements of said access door for blocking said air flow passage extending along said door when said door is closed and for opening said air flow passage extending along said door when said door is open.
2 more elements
An incubator comprising:
- a base having an infant support and a plurality of air flow passage means for permitting air flow between the space beneath said infant support and the space above said infant support, one of said air flow passage means opening along a lateral edge of said infant support;
- a hood surmounting said base and adapted to enclose said infant support and said air flow passage means, a lateral wall of said hood extending along said lateral edge of said infant support and having an access door movable between a closed position and an open position;
- a source of conditioned air within said base and below said infant support;
- means for circulating said conditioned air from below said infant support into said hood and back to below said infant support through said plurality of air flow passage means;
- and means responsive to movements of said access door for closing said one air flow passage means when said access door is in said closed position and for opening said one air flow passage means when said access door is in said open position.
2 more elements
Dependencies are inferred from the claim text.