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US 5,513,063 AGranted
Combined electrical plug and circuit breaker
OwnerWell S. Wuinventor
Life of this patent
Estimating the term…
Abstract
A combined electrical plug and circuit breaker that interrupts current when excessive current flows. A housing receives a body portion with extending blades. A bi-metallic strip opens silver contacts when an overload occurs. A rod member can reset the contacts when the overload problem is solved.
Claims1
A combined electrical plug and circuit breaker comprising:
- a body portion (1) formed with a seat (10) and a slot (11) at a bottom thereof, a first opening (12) at one side thereof, a second opening (13) at another side thereof, and a notch (14) at an end side thereof, said body portion (1) being formed at said one side with two upper protuberances (15) and a raised elongated member (16) below said upper protuberances (15), said seat (10) being formed with a groove (17) and a first hole (18);
- a first terminal (2) provided with a lug (20) having a second hole (21) at one end thereof and a bi-metallic strip (23) at another end, said lug (20) having a blade (25) extending therefrom, said first terminal (2) being fixedly mounted in said body portion (1) by a screw (22) with said second hole (21) aligned with said first hole (12) and said blade (35) extending out of said first opening (12), said bi-metallic strip (23) having a first silver contact (24) at an end thereof;
- a second terminal (3) including a blade (35) having an upper notch (30) and a lower notch (31) and a fixing portion having a second silver contact (33) and a hook (34), said second terminal (3) being fixedly mounted in said body portion (1), with said upper notch (30) and said lower notch (31) respectively engaged with one of said upper protuberances (15) and said raised elongated member (16) of said body portion (1), said hook (34) being disposed within said slot (11), said second silver contact (33) contacting said first silver contact (24), and said blade (35) extending out of said second opening (13);
- an insulator mount (4) formed with a third opening (41) in which is fitted an insulating partition (40), said insulator mount (4) being provided with a pin (42) for engaging a spring (43) at one end thereof and a rod member (44) at another end thereof, said insulator mount (4) being fitted between said first terminal (2) and said second terminal (3) with said rod member (44) supported on said notch (14), said spring (43) being fitted between said pin (42) and an inner end wall of said body portion (1);
- and
- a housing (5) having a fourth opening (52) at one end thereof, a third hole (51) at another end thereof, and a chamber (50) in interior adapted to receive said body portion (1).
3 more elements
Dependencies are inferred from the claim text.