Non-whistling vent tube
OwnerDavid Parpart, Kevin Baxter +1inventors
InventorsDavid Parpart, Kevin Baxter, C. Thielen
Life of this patent
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Abstract
A non-whistling corrugated tube is provided having a plurality of rib segments interleaved between a plurality of root segments. Each of the rib segments include a pair of axially converging sidewalls intersecting with an apex wall. The geometry of the tube is such that the rib-to-root volume ratio is in the range of 0.1 to 0.2. Corrugated tubes having these geometric configurations have been found to be superior to conventional corrugated tubing for attenuating airborne noise generated by fluid flow therethrough, i.e., whistling.
Claims20
A non-whistling corrugated tube, comprising:
- a plurality of root segments each of said plurality of root segments having an axial root length measured along a longitudinal axis;
- a plurality of rib segments interleaved between said plurality of root segments and each of said plurality of rib segments having a pair of sidewalls extending from adjacent root segments and terminating at an apex wall, said apex wall having an axial apex length that is smaller than said axial root length.
A non-whistling corrugated tube, comprising:
- a root segment having a root diameter and a longitudinal axis;
- and
- a plurality of rib segments extending radially from said root segment and equally spaced apart therealong at a spaced dimension, each of said plurality of rib segments having a pair of sidewalls extending from said root segment to an apex wall;
- a root segment volume defined by said root diameter and said spaced dimension;
- and
- a rib segment volume defined by a length of said rib segment adjacent said root segment, a length of rib segment at said apex wall and a height of said pair of sidewalls;
- wherein a rib-to-root volume ratio defined by a quotient of said rib segment volume and said root segment volume is less than 0.2.
A non-whistling corrugated tube, comprising:
- a plurality of root segments, each of said plurality of root segments including an axial root length and a root diameter;
- a plurality of rib segments interleaved between said plurality of root segments, each of said plurality of rib segments having a pair of sidewalls extending radially outwardly from an adjacent root segment and converging at an apex wall;
- a root segment volume defined by said axial root length and said root diameter;
- and
- a rib segment volume defined by a length of said rib segment adjacent said root segment, a length of rib segment at said apex wall and a height of said pair of converging sidewalls and an angle of convergence;
- wherein a rib-to-root volume ratio defined by a quotient of said root segment volume and said rib segment volume is less than 0.2;
- wherein said angle of convergence is greater than 3°;
- and
- wherein a length-to-diameter ratio defined by a quotient of said axial root length and said root diameter is greater than 0.27.
Dependencies are inferred from the claim text.