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Rotary switch with low play
   
Document Number
US Patent 5828281
Issued Date
October 27, 1998
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Abstract
A rotary switch adapted to be integrated into a push-to-start electrical control for a clothes dryer or the like employs a rotatable and axially translatable operator having an outwardly extending arm supporting a downward finger which travels across a pivotally mounted and downwardly arcuate lever to open and close contacts mounted on one end of the lever with rotation of the operator. Stops on rotation ensure that the finger is positioned on the lever so as to provide positive biasing of the operator to its end positions. The armature of a relay is actuated by a second arm from the operator contacting the armature within a triangle formed by the electromagnet coil and pivot supports preventing de-stabilization of the armature by the operator. Assembly of the relay to a base of the switch is provided by integrally molded hooks receiving tabs which cover holes necessary for the hook's manufacture. The operator is supported in a socket having a thin bottom wall that breaks free upon axial impact against the operator such as otherwise would be expected to damage the integrity of the switch housing.
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Rotary switch with low play - US Patent 5828281 Drawing
Drawing from US Patent 5828281
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Number of Claims:
15
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Owner
U.S. Controls Corporation (New Berlin, WI)
Published
October 27, 1998
Application Number
08/496,272
Filed
June 28, 1995
US Classification
335/286   335/164
Int'l Classification
H01H   25/00   (20060101)   H01H   19/63   (20060101)   H01H   25/06   (20060101)   H01H   19/00   (20060101)   H01H   50/16   (20060101)   H01H   50/32   (20060101)  
Examiner
Attorney/Law Firm
USPTO Field of Search
335/78   335/79   335/80   335/81   335/82   335/83   335/84   335/85   335/86   335/286   335/128   335/124   335/276   335/186   335/72   335/78   335/79   335/80   335/81   335/82   335/83   335/84   335/85   335/86   335/126   335/140   335/238  
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