Trap primer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9708808
APP PUB NO 20160340885A1
SERIAL NO

14545559

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An embodiment providing one or more improvements includes a trap primer with upper and lower chambers separated by a flexible diaphragm which also interacts with a valve stem to start and stop the flow of water from the trap primer to the trap(s). The lower chamber contains a polymeric foam medium such as a foam ring containing closed cells containing gas or gases. In use, equilibration of water pressures in the upper and lower chambers causes distortion of the foam ring, resulting in equilibration of the gas pressure in the closed cells with that of the chambers. A decrease in line water pressure causes water from the lower chamber to be emitted into the traps.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SMITH INDUSTRIES INC D/B/A JAY R SMITH MANUFACTURING COMPANY2781 GUNTER PARK DRIVE EAST MONTGOMERY AL 36109

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stanaland, William A Montgomery, US 4 26

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