Mine door

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10316663
APP PUB NO 20170107817A1
SERIAL NO

15291731

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A reinforced lightweight mine door for installation in a mine passageway. The mine door includes a generally rectangular sheet metal door panel having four sides and four corners, and a reinforcing structure projecting from a face of the door panel. The reinforcing structure has a central section and a plurality of channel sections extending from the central section toward respective sides or corners of the door panel. A mine door including at least one hinge arrangement having unique reversibility features is also disclosed.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
JACK KENNEDY METAL PRODUCTS & BUILDINGS INCP O BOX 138 TAYLORVILLE IL 62568

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kennedy, John M Taylorville, US 74 862
Kennedy, William R Taylorville, US 82 1364

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