Outlet valve arrangements for enhanced pump efficiency

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11852247
APP PUB NO 20210356046A1
SERIAL NO

17387186

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Importance

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Abstract

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A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet a pump outlet, and a pump chamber. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.

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Patent Owner(s)

Patent OwnerAddress
GOJO INDUSTRIES INCP O BOX 991 AKRON OH 44309

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ciavarella, Nick E Seven Hills, US 167 2243
Harris, Donald R Cuyahoga Falls, US 41 375
Marshall, Aaron D Uniontown, US 57 347
McNulty, John J Broadview Heights, US 65 725
Willis, Daniel M Clinton, US 20 214

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