Non-sparking rotatable switch apparatus

Details Non-sparking rotatable switch apparatus Non-sparking rotatable switch apparatus

1992-09-15

1994-08-30

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

200 6BB, 200 11C, H01H 1952, H01H 2172

Patent

active

053430042

ABSTRACT:
A non-sparking rotatable switch apparatus for a multi-speed fan includes stationary contacts positioned at two different levels relative to a plane of rotation of the switch. The rotatable portion of the switch apparatus includes upwardly extending contact sheets, some of which extend only to the lower level at which contacts are positioned and at least one of which extends to the higher level at which contacts are positioned. The higher level upwardly extending contact sheets have different widths than the lower level sheets, thereby changing the timing at which the upwardly extending contact sheets engage the respective contacts.

REFERENCES:
patent: 2395572 (1946-02-01), Meuer et al.
patent: 2813158 (1957-11-01), Hutt
patent: 2841664 (1958-07-01), Gartland, Jr. et al.
patent: 2921147 (1960-01-01), Hutt

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