Rotational speed switching apparatus of a ceiling fan

Details Rotational speed switching apparatus of a ceiling fan Rotational speed switching apparatus of a ceiling fan

2005-07-26

2005-07-26

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Reciprocating actuator

C200S543000

Reexamination Certificate

active

06921874

ABSTRACT:
A rotational speed switching apparatus includes a seat body in which a rotary shaft is pivotally disposed and a pull rotary assembly for driving the rotary shaft to one-way circularly rotate. Each time the rotary shaft rotates, the rotary shaft rotates by 72 degrees. A stepped conductive ring is fitted around the rotary shaft and has an upper, a middle, a lower and a connecting section extending from the lower section to a bottom of the rotary shaft. The widths of the upper, middle and lower sections are respectively 72 degrees of the circumference of the conductive ring. The interior of the seat body is partitioned into five receptacles at equal intervals. The four contacts cooperate with two capacitors to achieve five-stage switch of the rotational speed.

REFERENCES:
patent: 2318057 (1943-05-01), Cohen
patent: 4766277 (1988-08-01), Bigelow, Jr.
patent: 5252794 (1993-10-01), Tseng
patent: 5278366 (1994-01-01), Fleischhauer
patent: 5300871 (1994-04-01), Bucher et al.

Affiliated with

Also associated with

Rating

Rotational speed switching apparatus of a ceiling 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 Rotational speed switching apparatus of a ceiling fan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotational speed switching apparatus of a ceiling fan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3381734