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US 10,760,420 B2Granted
Underground ventilation apparatus and method
AssigneePolyvent PTY LTD
InventorJoseph Ianni
Life of this patent
Estimating the term…
Abstract
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.
Claims8
A ventilation apparatus comprising:
- 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;
- wherein 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;
- wherein the first engagement formation is defined by a flared female end portion;
- wherein the flared female end portion is adapted to receive the second engagement portion defined by a male projection;
- wherein each of the first and second semi-tubular sections includes a third engagement formation and a corresponding fourth engagement formation, the third engagement formation including a longitudinally extending rib, and the fourth engagement formation including a corresponding longitudinally extending groove;
- and
- wherein the longitudinally extending rib includes a cut-out and the longitudinally extending groove includes a corresponding tooth, the tooth and cut-out being adapted to interact to longitudinally align the first semi-tubular section and the second semi-tubular section.
5 more elements
A method of installing a ventilation apparatus, the method including the following steps:
- securing a first semi-tubular section to a support structure,
- securing a second semi-tubular section to the first semi-tubular section to define a tubular conduit section, the tubular conduit section having a first engagement formation located at a first end of the tubular conduit section, and a second engagement formation located at an opposing second end of the tubular conduit section;
- wherein the first semi-tubular section and the second tubular section each have a cross-sectional profile that is generally in the form of an open semi-circular annular element, when viewed along a longitudinal axis;
- wherein the first engagement formation is defined by a flared female end portion;
- wherein the flared female end portion is adapted to receive the second engagement portion defined by a male projection;
- wherein each of the first and second semi-tubular sections includes a third engagement formation and a corresponding fourth engagement formation, the third engagement formation including a longitudinally extending rib, and the fourth engagement formation including a corresponding longitudinally extending groove;
- and wherein the longitudinally extending rib includes a cut-out and the longitudinally extending groove includes a corresponding tooth, the tooth and cut-out being adapted to interact to longitudinally align the first semi-tubular section and the second semi-tubular section;
- and
- installing one or more additional tubular conduit sections such that the first engagement formation of each tubular conduit section engages with the second engagement formation of an adjacent tubular conduit section.
6 more elements
Dependencies are inferred from the claim text.