IP Library Granted Patent US 9,450,347
Granted Patent B2
US 9,450,347 · App. 13/972,334 · Granted Sep 20, 2016

Power cord

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Quick Facts
Patent No.
US 9,450,347
App. No.
13/972,334
Granted
Sep 20, 2016
Kind
B2
Abstract

A power cord includes a plug having blades configured to be inserted into blade insertion holes of an electrical outlet, respectively. The power cord further includes thermal sensors provided for the blades one each. When a temperature detected with any of the thermal sensors is higher than a prescribed temperature, electric power is stopped from being supplied to a load from the blades.

Claims (14)

1. A power cord, comprising:

a plug comprising an enclosure and blades configured to be inserted into blade insertion holes of an electrical outlet, respectively, and thermal sensors provided for the blades at least one each, each of the thermal sensors being configured to detect a temperature of a corresponding blade;

a load connection portion configured to be connected to a load;

a cut-off configured to stop electric power from being supplied to the load connection portion from the blades when a temperature detected with any of the thermal sensors is higher than a prescribed temperature; and

a sensor holder that is made from insulating material and retains the thermal sensors such that the sensor holder intervenes between each of the thermal sensors and a blade corresponding thereto, wherein

the sensor holder is insert molded in the enclosure, and

a wall of the sensor holder includes two sensor storing recesses.

2. The power cord of claim 1 , wherein the thermal sensors are in contact with the blades one each.

3. The power cord of claim 1 , wherein each distance between each of the thermal sensors and a blade corresponding thereto is smaller than a distance between the blades.

4. The power cord of claim 2 , wherein each distance between each of the thermal sensors and a blade corresponding thereto is smaller than a distance between the blades.

5. The power cord of claim 1 , wherein any one of the thermal sensors is not arranged between the blades.

6. The power cord of claim 2 , wherein any one of the thermal sensors is not arranged between the blades.

7. The power cord of claim 3 , wherein any one of the thermal sensors is not arranged between the blades.

8. The power cord of claim 4 , wherein any one of the thermal sensors is not arranged between the blades.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 24, 2020
From: PANASONIC CORPORATION
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 056788/0362 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2014
From: PANASONIC CORPORATION
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 034194/0143 →