Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Patent
1997-10-22
1999-08-31
Lopez, F. Daniel
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Distally supported on radial arm
416210R, 416 5, 416205, 416206, 416207, 416214R, 416204R, 403 3, 403 4, 403 13, 403 14, 411354, 411 32, 411 33, 411172, 411173, 411174, 411175, 411539, 411178, F01D 2500, F03D 1104, F04D 2900
Patent
active
059444860
ABSTRACT:
An interchangeable fan blade system for a ceiling fan, made up of a set of adapters having a plurality of elongated attachment apertures that allow the adapter to be threadably fitted to virtually any type of fan support arm, and a complimentary set of interchangeable fan blades. The adapters include one of a variety of connectors for attaching one end of the fan blades to the support arm. The one end of the fan blade is configured and adapted, or otherwise provided with mating connector elements adapted to engage the connectors of the adapters, thereby allowing the fan blades to be removably attached to the adapters. A second embodiment of the interchangeable fan blade system is a set of interchangeable fan blades having a plurality of elongated attachment apertures which allow the fan blades to be secured to virtually any type of fan arm, by threading a plurality of shoulder cap screws and a plurality of male-female connectors though the plurality of attachment apertures. A third embodiment of the interchangeable fan blade system is a set of support arms attached to the rotating portion of the fan and having one of a variety of connectors for removably attaching one end of the fan blades to the support arm.
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Barton Rhonda
Litman Richard O.
Lopez F. Daniel
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