Title:
SNOW MELTING SYSTEM
Document Type and Number:
Japanese Patent JP2020016068
Kind Code:
A
Abstract:
To execute snow melting more efficiently than before.SOLUTION: Provided are heating devices 10a to 10d buried underground and a selector circuit 30 for switching the connection of the heating devices 10a to 10d. The selector circuit 30 selects one of the heating devices 10a to 10d, connects the remaining three devices in series with each other, and applies the same voltage to the selected one device and the three devices connected in series. The device selected by the selector circuit 30 is sequentially switched among the heating devices 10a to 10d.SELECTED DRAWING: Figure 1
Inventors:
SUDO MASAYOSHI
HASEGAWA TETSUTARO
HASEGAWA TETSUTARO
Application Number:
JP2018139218A
Publication Date:
January 30, 2020
Filing Date:
July 25, 2018
Export Citation:
Assignee:
HASEGAWA TETSUTARO
International Classes:
E01C11/26; H05B3/00; H05B3/10
Attorney, Agent or Firm:
Kaji/Suhara Patent Office