Ventilation check valve for internal combustion engines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4373499
SERIAL NO

06295007

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Abstract

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A suction-limiting check valve for a crankcase ventilating line which is connected to the engine intake downstream of the carburetor, the valve having two valve devices arranged for parallel operation, each including a spring-biased diaphragm which closes against a valve mouth at a predetermined level of negative pressure, one valve mouth being much smaller than the other to produce an earlier reopening of that valve device under elevated suction on the outlet side of the valve.

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Patent Owner(s)

Patent OwnerAddress
FIRMA FILTERWERK MANN & HUMMEL GMBHHINDENBURGSTRASSE 37-45 7140 LUDWIGSBURG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bendig, Lothar Ludwigsburg, DE 12 221

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