Air blower with air directing vanes
First Claim
1. An air blower adapted to be mounted to a ceiling of a room to create a gentle circulation of air in such room, said blower comprising a housing in which a motor-driven impeller is mounted for rotation to create an air flow, said housing including an air inlet in the upper portion thereof and a generally cylindrical portion surrounding said impeller and extending downwardly therefrom, and air directing vane means fixed to the extending end of said cylindrical housing portion to receive air therefrom and to direct said air in a flow path extending generally parallel to the axis of rotation of said impeller, said vane means including a first plurality of relatively large vanes disposed in planes extending axially with respect to said axis of rotation and a second plurality of relatively small vanes disposed in planes extending axially with respect to said axis of rotation and offset from said planes of said large vanes, said small vanes being disposed adjacent the downstream portions of said large vanes and having a smaller axial extent than said relatively larger vanes.
2 Assignments
0 Petitions
Accused Products
Abstract
An air blower adapted to be mounted to the ceiling of a room to create a gentle circulation of air in such room. The blower includes a motor-driven impeller mounted in generally cylindrical housing and a vane unit having a first plurality of relatively large vanes disposed in radial planes with respect to the axis of rotation of the impeller, and a second plurality of relatively small vanes disposed in radial planes equally offset from the larger vanes and disposed adjacent the downstream portion of the large vanes. The vane unit is detachably mounted to the blower housing to permit removal of the vane unit for cleaning.
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Citations
5 Claims
- 1. An air blower adapted to be mounted to a ceiling of a room to create a gentle circulation of air in such room, said blower comprising a housing in which a motor-driven impeller is mounted for rotation to create an air flow, said housing including an air inlet in the upper portion thereof and a generally cylindrical portion surrounding said impeller and extending downwardly therefrom, and air directing vane means fixed to the extending end of said cylindrical housing portion to receive air therefrom and to direct said air in a flow path extending generally parallel to the axis of rotation of said impeller, said vane means including a first plurality of relatively large vanes disposed in planes extending axially with respect to said axis of rotation and a second plurality of relatively small vanes disposed in planes extending axially with respect to said axis of rotation and offset from said planes of said large vanes, said small vanes being disposed adjacent the downstream portions of said large vanes and having a smaller axial extent than said relatively larger vanes.
Specification