Automatic oil additive injector

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5327861
SERIAL NO

08097421

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An automatic oil additive injector is disposed over the drain opening in a bottom wall of an engine oil pan and extends into the oil pan. A side port is provided in a housing of the injector for allowing oil to drain therethrough when the oil drain plug is removed. Primary and secondary valve assemblies and a pump operator provided in the housing are activated upon removal of the drain plug to allow a chamber therebetween to fill with a predefined volume of additive, preferably silicone fluid, from a reservoir of the injector and which, upon engagement of the drain plug, dispense the fluid into the oil pan at each oil change to decrease aeration of the oil. In a second embodiment, the additive injector and reservoir are incorporated in the lubricating oil filter header.

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Patent Owner(s)

Patent OwnerAddress
NAVISTAR INTERNATIONAL TRANSPORTATION CORPLAW OFFICES-13 455 N CITYFRONT PLAZA DRIVE CHICAGO IL 60611-5594

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chesna, Arnold J Melrose Park, IL 1 24
Florek, Bronislaw B Elk Grove Village, IL 4 35
Grinsteiner, James J Union, IL 15 191
Rogalla, Ronald J Melrose Park, IL 2 151

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