Portable air circulating fan

Patent 3963382 Issued on June 15, 1976. Estimated Expiration Date:

June 15, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2123448

2378012

2498968

2633293

2857095

3446429

3791333

Inventor

Patton, Noel Thomas

Application

No. 546089 filed on 01/31/1975

US Classes:

417/361, Pump and motor unitarily adjustable relative to fixed support415/121.2, WITH SEPARATING MEANS OR GUARD FOR SOLID MATTER IN WORKING FLUID (E.G., DEBRIS, ETC.)416/247R, PROTECTIVE SCREEN OR GUARD417/234, AMBULANT, BODY SUPPORTED, OR WITH CARRYING HANDLE74/609For rotary member

Examiners

Primary: Husar, C. J.

Attorney, Agent or Firm

Abstract

A portable air circulating fan, especially a high velocity fan in which a rotary air impeller is mounted on the shaft of an electric motor while a guard is provided which encloses the impeller and may enclose part or all of the motor, and which guard is formed into separable forward and rearward sections. The electric motor for the fan is supported on one of the guard sections near the center, especially the rearward guard section, while a support frame is provided for the fan having a base portion and a pair of spaced upstanding legs which are connected to the sides of the guard, and about which points of connection the fan is tiltable. Advantageously, the legs are also connected to the rearward guard section but may, alternatively, be connected to the forward guard section. In this manner the rotating air impeller is guarded at all times.The guard sections each comprise a center ring member and extending substantially radially from the center ring are wires which incline radially outwardly and inwardly to a peripheral outer ring. The radial wires may be provided with strengthening rings if desired.