Dual plate backflow and breakaway check valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9353878
APP PUB NO 20150240962A1
SERIAL NO

14634082

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A dual plate backflow and breakaway check valve that features a warning system to alert individuals when fire hydrants are dislocated. The dual plate check valve comprises an upper surge protection valve assembly and a lower backflow protection valve assembly. When fire hydrant or pipes conveying fluids are damaged, the locking mechanism enables a plurality of upper witness stream holes to generate at least one plume of fluid to indicate and readily visualize location of damage and allows an upper barrel assembly to operate in a closure mode. In this mode, a high pressure spray of fluid emits from the upper valve barrel and an optimum inclination of the lower portion of the upper valve barrel enables the upper witness stream holes to collide with an inner side wall of the upper valve barrel which causes the plurality of upper witness stream holes to disperse into a warning signaling mist.

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Friedman, Jerry Los Angeles, US 1 19
Plummer, Aaron Los Angeles, US 1 19
Plummer, Melvin Los Angeles, US 3 27
Shohet, Uri Los Angeles, US 1 19

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