Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Patent
1998-12-22
2000-10-31
Ryznic, John E.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
B63H 120
Patent
active
061392774
ABSTRACT:
A motor drives a hub having axially extending blind tapered recesses to receive tapered shoes on a plurality of blades, and threads which fasten a ring that presses the shoes axially into the recesses have a hand-direction that tend to tighten in response to the rotation of the shaft. The recess is partially defined by a forward downward sloping upper wall. The shoe includes a forward downward upper surface. The recess sloping wall functions as a positive stop for seating the shoe by engaging the sloping shoe surface and as a centrifugal force absorbing wall during rotation of the blades.
REFERENCES:
patent: 390615 (1888-10-01), Nye
patent: 417865 (1889-12-01), Green
patent: 752670 (1904-02-01), Hamilton
patent: 1363660 (1920-12-01), La Fleur
patent: 1819728 (1931-08-01), Baugh
patent: 2773169 (1956-12-01), Lees
patent: 3073395 (1963-01-01), Duncan
patent: 3887298 (1975-06-01), Hess et al.
patent: 3957393 (1976-05-01), Bandurick
patent: 4080101 (1978-03-01), Zlotek
patent: 4191509 (1980-03-01), Leonardi
patent: 4451202 (1984-05-01), Hauser
patent: 4451203 (1984-05-01), Langley
patent: 4451204 (1984-05-01), Pask
patent: 4451205 (1984-05-01), Honda et al.
patent: 4462757 (1984-07-01), Uemura
patent: 4715784 (1987-12-01), Mosiewicz
patent: 4915587 (1990-04-01), Piez et al.
patent: 5263823 (1993-11-01), Cabaret et al.
patent: 5354177 (1994-10-01), Chang
patent: 5501576 (1996-03-01), Monroe
Air Concepts, Inc.
Dreyfus Edward
Ryznic John E.
LandOfFree
Motorized fan does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motorized fan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motorized fan will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2044746