Push-button switch of overload protection (II)
June 23, 2020. 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.Patent References 3358099 Circuit breaker Double-pole rocker switch with thermal protection Manual switch with timed electro-thermal latch release Combined switch and circuit breaker Two-stage locking push switch Overload protection switch with single push button for turn-on and turn-off Circuit breaker construction Circuit breaker Switch and circuit breaker combination device InventorApplicationNo. 602782 filed on 06/23/2000US Classes:337/37, With manual or other mechanical contact controlling means337/39, Independently operative bimetallic elements337/59, Toggle337/66, With push-button actuating means337/74, Trip-free337/85, Bimetallic element unitary with or directly actuates movable contact means337/112, Housing, casing or support means337/113With external circuit connection meansExaminersPrimary: Vortman, AnatolyForeign Patent References
International ClassesH01H 037/02H01H 037/32 H01H 037/46 Foreign Application Priority Data1999-06-24 TWAbstractA push-button switch with overload protection is disclosed. The switch comprises a housing, a conducting unit, and an actuating unit. The conducting unit comprises several terminals, a normal-open first conducting leaf and a thermally deflecting bimetal sheet. The bimetal sheet is of a U shape having a working end and an opening end. The working end can deflect to an overload position from a normal position in the event of overload. The actuating unit comprises a stem, a positioning means, a rocking lever, an enabling lever, and a lever reseating member. By means of the above structure, a trip action could be assured no matter what happens on the stem.Field of SearchWith bimetallic elementWith manual or other mechanical contact control means With toggle linkage Bimetallic element structure or composition of material With push-button actuating means With contact pressure maintaining or adjusting means With direct contact separating means (e.g., plunger camming means) Independently operative (nontrip-free) Snap-action Toggle Trip-free Bimetallic element unitary with or comprising latch means Performs dual functions (e.g., main contact) With signal or indicating means Independently operative bimetallic elements Bimetallic element unitary with or directly actuates movable contact means With reset means Housing, casing or support means With external circuit connection means Wire or other stranded element | |
