Propeller breeze enhancing blades for conventional ceiling fans

Details Propeller breeze enhancing blades for conventional ceiling fans Propeller breeze enhancing blades for conventional ceiling fans

1989-01-30

1990-01-09

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Removable auxiliary attachment to work surface

416 5, 416 23, F04D 2938

Patent

active

048924601

ABSTRACT:
Aerodynamically designed and improved auxiliary blade attachment that wedge firmly onto the trailing edges of the main blades of conventional ceiling fans. The highly functional shape and super lightweight one-piece construction of these easy-to-use auxiliary blades and their strategic placement on the main fan blades serve to heighten the angle of incidence and thus create an intensified dual air current laterally and downwardly in relation to the fan's central core. The result is a dynamic increase of cubic feet of propeller-cooled air per minute without electrically increasing the velocity of ceiling fan rotation.

REFERENCES:
patent: 871729 (1907-11-01), McChord
patent: 1055947 (1913-03-01), Schwartzberg
patent: 1990291 (1935-02-01), Larsen
patent: 2450440 (1948-10-01), Mills
patent: 2990889 (1961-07-01), Welch
patent: 3077229 (1963-02-01), Heintzelman
patent: 3952712 (1976-04-01), Hermanson
patent: 4618313 (1986-10-01), Mosiewicz
patent: 4662823 (1987-05-01), Cooke
patent: 4722608 (1988-02-01), Saltman

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