Underground ventilation apparatus and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10760420
APP PUB NO 20170362937A1
SERIAL NO

15544844

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Abstract

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A ventilation apparatus includes a plurality of tubular conduit sections, each conduit section including a first semi-tubular section and a second semi-tubular section, each semi-tubular section having a cross-sectional profile generally in the form of an open semi-circular annular element, when viewed along a longitudinal axis. Each tubular conduit includes a first engagement formation located at an end of the tubular conduit, and a second engagement formation located at an opposing end of the tubular conduit.

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Patent Owner(s)

Patent OwnerAddress
POLYVENT PTY LTDSYDNEY NSW 2000

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ianni, Joseph Mount Warrigal, AU 1 1

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