Fluid reaction surfaces (i.e. – impellers) – Support mounting – carrier or fairing structure – Selectively adjustable impeller mount
Patent
1993-09-15
1995-07-25
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Support mounting, carrier or fairing structure
Selectively adjustable impeller mount
416100, F04D 2960
Patent
active
054356962
ABSTRACT:
A tiltable oscillating fan assembly for use in circulating air. In one embodiment, the fan assembly includes a stand, a fan head and a neck joint. The top of the stand terminates in upwardly extending bifurcated portions. The fan head is rotatably supported on the neck joint. The bottom of the neck joint is shaped to include a rounded portion which is pivotally mounted between the bifurcated portions of the stand. One side of the rounded portion is shaped to include a recessed arc which extends over an angular distance of approximately 90 degrees. An angular boss mounted on the inside surface of one of the bifurcated portions limits the angular movement of the rounded portion relative to the bifurcated portions by abutting the neck joint at opposite ends of the recessed arc. When the boss abuts the neck joint at one end of the recessed arc, the fan head is positioned vertically. When the boss abuts the neck joint the opposite end of the arc, the fan head is positioned horizontally. To secure the fan head at the aforementioned horizontal and vertical positions and at a plurality of positions therebetween, the fan assembly also includes a locking screw which is insertable through the mounting post and the boss and which is used to frictionally engage the arc at a desired position.
REFERENCES:
patent: 1241600 (1917-10-01), Aalborg
patent: 2100923 (1937-11-01), Schmidt et al.
patent: 2183979 (1939-12-01), Tornberg
patent: 4732539 (1988-03-01), Shin-Chin
patent: 4850804 (1989-07-01), Huang
Holmes Products Corp.
Larson James A.
Look Edward K.
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