Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Patent
1994-03-07
1995-07-18
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Turbo machine
416 5, F04D 2934
Patent
active
054335850
ABSTRACT:
A ceiling fan blade support comprises a fastening segment and blade support segment. The fastening segment is fastened to a main body of the ceiling fan and provided at one end thereof with a vertical surface having a pivoting cut. The blade support body is provided at one end thereof with a protruded piece engageable with the pivoting cut of the fastening segment. The protruded piece has a pivoting botom side provided with a slanted surface having an angle of inclination ranging between 10 and 15 degrees. In operation, the ceiling fan blades are so balanced as to eliminate the excessive vibration of the ceiling fan.
REFERENCES:
patent: 741107 (1903-10-01), Burnes
patent: 4396352 (1983-08-01), Pearce
patent: 4776761 (1988-10-01), Diaz
patent: 5108260 (1992-04-01), Monrose, III et al.
patent: 5180284 (1993-01-01), Monrose, III et al.
patent: 5304037 (1994-04-01), Scofield
Lee Michael S.
Lei Alfred
Look Edward K.
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