Flexible fan device

Details Flexible fan device Flexible fan device

1980-07-17

1982-06-15

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Sectional, staged or nonrigid working member

416238, 416240, F04D 2938

Patent

active

043348246

ABSTRACT:
A flexible fan device includes a power driven boss and a plurality of fan blades, each secured on the boss at an attached angle. The fan blade has a root portion secured to the boss and a tip portion offset with respect to the root portion in the downstream direction so that the blade angle is decreased under the influence of centrifugal force in response to an increase in the rotating speed. The fan blade is formed to have an angle inclined in the direction of rotation of the boss.

REFERENCES:
patent: 152973 (1874-07-01), Cross
patent: 463908 (1891-11-01), Morton
patent: 578360 (1897-03-01), Phillips et al.
patent: 736137 (1903-08-01), McIntosh
patent: 958599 (1910-05-01), Cooksey
patent: 1158909 (1910-08-01), Evitts
patent: 1798299 (1931-03-01), Antoni
patent: 3584969 (1971-06-01), Aiki et al.
patent: 3860362 (1975-01-01), Bentley et al.
patent: 4187055 (1980-02-01), Barnstead

Affiliated with

Also associated with

Rating

Flexible fan device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible fan device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible fan device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1917076