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US 6,597,863 B2Granted
Device for keeping a portion of a body of water free from ice
OwnerJames Donald Koskey, Jr.inventor
Life of this patent
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Abstract
A device for keeping a portion of a body of water free from ice includes a heating element and a buoyant enclosure to contain the heating element.
Claims13
A device for keeping a portion of a body of water free from ice comprising:
- a heating element;
- a buoyant enclosure to contain the heating element having an insulative dead air space;
- a diaphragm across an opening of the buoyant enclosure and having
- a single opening above a water line;
- and
- a stovepipe vent extending down from the diaphragm.
3 more elements
A device for keeping a portion of a body of water free from ice comprising:
- a heating element having energy focused into an interior chamber;
- a waterproof housing to contain the heating element and having an interior surface that is in communication with the body of water, the waterproof housing forming the interior chamber and having an insulative dead air space;
- a cover which traverses an exposed opening of the waterproof housing;
- and
- a stovepipe vent extending down from the cover.
2 more elements
A device for keeping a portion of a body of water free from ice comprising:
- a housing having an interior surface that defines an interior volume of water and has an opening that provides communication with an exterior volume of water, the housing having an insulative dead airspace;
- a heating element having energy focused into the interior volume of water;
- a cover which traverses an exposed opening of the housing;
- and
- a stovepipe vent extending down from the cover.
2 more elements
Dependencies are inferred from the claim text.