Back to results
US 6,747,225 B1Granted
Safety switch
OwnerTsung-Mou Yuinventor
Life of this patent
Estimating the term…
Abstract
A safety switch includes a base having two terminals connected thereto and each terminal has a first contact point and a bimetallic plate is movably received in the base and has two second contact points which are located above the two first contact points. The two ends of the bimetallic plate can be bent when overflow. A first spring is biased between an inside of the base and the bimetallic plate. A button assembly is connected to the base and a second spring is biased between the button assembly and the bimetallic plate. The two ends of the bimetallic plate bend upward to cut off the circuit when current overflows.
Claims3
A safety switch comprising:
- a base having two terminals connected thereto and each terminal having a first contact point;
- a bimetallic plate movably received in the base and two second contact points connected to two ends of the bimetallic plate, the two second contact points located above the two first contact points and the two ends of the bimetallic plate being bent when overflow;
- a first spring biased between an inside of the base and the bimetallic plate, and
- a button assembly connected to the base and a second spring biased between the button assembly and the bimetallic plate.
1 more element
Dependencies are inferred from the claim text.