Sound-absorbent blower cover
OwnerGary R. Wendt, Maurice P. Walshinventors
Life of this patent
Estimating the term…
Abstract
A flexible sound-absorbent blower cover includes an outer skin of a pliable material shaped to surround the blower and conforming generally to the shape of the blower but oversize to provide a space between the outer skin and the blower. A flexible porous sound-absorbent liner is disposed in the space and is bonded to the outer skin. The blower draws air in through the liner which filters the air. The structure of the flexible one piece cover prevents it from resonating. The cover is provided with a slit which can be opened to facilitate installation and then closed to keep the cover in place on the blower.
Claims12
A flexible sound-absorbent cover for installation on a blower of the type having a rigid body including an air intake aperture, a motor and an air impellor, the blower being connected to an outlet duct, said flexible cover comprising:
- an outer skin of a pliable material of such a shape as to surround the blower, and to conform generally to the shape of the blower but oversize so that a space exists between the blower and said outer skin;
- and,
- liner material of a sound-absorbent flexible porous substance affixed to said outer skin and so disposed in the space between the blower and said outer skin that some of the air taken in by the blower passes through said liner material before reaching the air intake, whereby said liner material filters some of the air taken in, said liner material occupying an appreciable portion of the space between the blower and said outer skin.
Dependencies are inferred from the claim text.