Fluid pressure indicator
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United States of America Patent
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May 20, 1980
Grant Date -
N/A
app pub date -
Dec 12, 1978
filing date -
Dec 12, 1978
priority date (Note) -
Expired
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Abstract
Disclosed herein is a fluid pressure indicator for providing visual indication whether or not the magnitude of a fluid pressure condition is above a predetermined minimum value. The indicator comprises indicating means having an indicating portion and a diaphragm. The indicating means is movable between a first extreme position in which the indicating portion is not visible and a second extreme position in which the indicating portion is visible. The diaphragm has a fixed portion and a resiliently deformable portion which is affixed to the indicating means and movable responsive to changes in the magnitude of the fluid pressure condition. The indicating means is thus movable with the resiliently deformable portion, such that whenever the magnitude of the condition is not in excess of the minimum value, the resiliently deformable diaphragm portion holds the indicating means in its said first position, but a predetermined increase in the magnitude of the condition above the minimum value will deform the deformable diaphragm resiliently, thus to move the indicating means to its said second position.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- AMERACE CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mayer, Robert W | Hackettstown, NJ | 7 | 131 |
Smorzaniuk, Adam | West Millington, NJ | 3 | 33 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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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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