Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Patent
1998-10-21
2000-03-21
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Distally supported on radial arm
416207, 416214R, 416244R, B63H 120
Patent
active
060395400
ABSTRACT:
A fan blade assembly includes a mounting arm with a mounting end formed with a plurality of engaging posts. A blade member has a plurality of mounting holes, each having a larger bore portion and a smaller notch portion divided by a constricted portion. A plurality of elastomeric coupling members are sleeved securely on the engaging posts, and have shanks, and radial outward peripheral flanges. Each coupling member is fitted snugly in the notch portion by passing the shank thereinto after the peripheral flange has been brought to pass through the bore portion to rest on one side of the blade member. A cap member has a plurality of engaging plugs. Each engaging plug is inserted into and is fitted snugly in the bore portion of the respective mounting hole in such a manner that a guiding portion thereof will gradually be brought to abut against the constricted portion.
REFERENCES:
patent: 5722814 (1998-03-01), Yu
patent: 5944486 (1999-08-01), Hodgkins, Jr.
patent: 5951197 (1999-09-01), Wu
Look Edward K.
Nguyen Ninh
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