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US 2008/0175715 A1Published application
Fan blade mounting system
AssigneeHunter Fan Company
InventorRichard A. Pearce
Life of this patent
Estimating the term…
Abstract
A ceiling fan (10) is disclosed having a motor housing (11) which encases an electric motor (13). The motor includes a bottom mounting plate (14) that rotates and thereby drives an annular array of blade irons (16), each having a blade (17) mounted thereto in conventional fashion. Each blade iron is mounted for pivotal and radial movement relative to the bottom mounting plate. An annular balancing ring (28) causes pivotal and radial movement of other blade irons (36)in response to the radial movement of an off-balanced blade iron (35).
Claims19
A fan comprising,
- an electric motor;
- a balancing member coupled to said motor for limited radial movement of said balancing member relative to said motor;
- an annular array of blade irons, each said blade iron being mounted to said motor for pivotal and radial movement relative to said motor, each said blade iron also has an end pivotally mounted to said balancing member;
- and
- a ceiling fan blade associated with each said blade iron of said annular array of blade irons,
- whereby the off balanced movement of a blade iron causes the radial movement of the balancing member, which in turn causes the pivotal and radial movement of the other blade irons towards an equilibrium position.
3 more elements
A ceiling fan comprising,
- an electric motor;
- an annular array of combined blade irons and blades coupled to said motor;
- a balancing system coupled to each said combined blade irons and blades, said balancing system pivotally and radially moving select combined blade irons and blades in a direction generally opposite to the direction of movement of an off-set combined blade iron and blade,
- whereby an equilibrium balance is provided by the pivotal and radial movements of the combined blade irons and blades.
1 more element
A fan comprising,
- an electric motor;
- a balancing member coupled to said motor for limited radial movement of said balancing member relative to said motor;
- an annular array of blade irons coupled to said motor, each said blade iron having a mounting member which allows pivotal and radial movement of said blade iron relative to said motor and a pivot member pivotally coupling said blade iron to said balancing member;
- and
- a ceiling fan blade associated with each said blade iron of said annular array of blade irons,
- whereby the off balanced movement of a blade iron causes the radial movement of the balancing member, which in turn causes the pivotal and radial movement of the other blade irons.
3 more elements
A fan comprising,
- an electric motor;
- a balancing member mounted adjacent said motor for limited radial movement of said balancing member relative to said motor;
- an annular array of blade irons coupled to said motor, each said blade iron having a first pivot allowing pivotal movement of said blade iron relative to said motor and a second pivot allowing pivotal movement of said blade iron relative to said balancing member;
- and
- a ceiling fan blade associated with each said blade iron of said annular array of blade irons,
- whereby the off balanced movement of a blade iron causes the radial movement of the balancing member, which in turn causes the pivotal and radial movement of the other blade irons towards an equilibrium position.
3 more elements
Dependencies are inferred from the claim text.