Compact electric water heater
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United States of America Patent
Stats
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Nov 12, 1996
Grant Date -
N/A
app pub date -
Mar 19, 1993
filing date -
Mar 19, 1993
priority date (Note) -
In Force
status (Latency Note)
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Importance
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US Family Size
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Non-US Coverage
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Abstract
A water heater including a steel water tank having a bottom plate and a deep drawn body portion welded together, the tank having a glass lining and openings to receive and discharge water; foam insulation surrounding the body portion; an outer covering surrounding the foam insulation; a bottom pan connected to the outer covering adjacent the bottom plate; and a heater connected to the tank. Also disclosed is a method of making a water heater including forming a steel water tank by welding together a bottom plate and a deep drawn body portion; lining the formed steel water tank with a glass coating; placing foam insulation forming liquids into a substantially rigid outer covering to form foam insulation having an interior portion with an open end and sized and shaped to substantially match the shape of the body portion of the water tank; positioning the water tank into the interior portion of the foam insulation; and covering the bottom plate of the water tank with a bottom pan and connecting the bottom pan to the outer covering.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| BRADFORD-WHITE CORPORATION A CORPORATION OF DELAWARE | SPRING HOUSE CORPORATE CENTER 323 NORRISTOWN ROAD SUITE 200 AMBLER PA 19002-2758 |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| West, Eugene L | Grand Rapids, MI | 12 | 121 |
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Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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