Patent ID: 11909075
Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. The method according to claim 4, wherein
the temporary sealing comprises:
disposing the insertion pin inside the guide portion,
inserting the insertion pin into the non-through hole from the opening of the cylindrical plug after the disposing,
bringing the guide portion in contact with the periphery of the opening,
after the bringing of the guide portion, aligning a position of another end surface of the cylindrical plug opposite to the one end surface having the opening with a periphery of the liquid injection hole of the battery case,
after the aligning of the position, fitting the cylindrical plug into the liquid injection hole by sliding the insertion pin and pushing the cylindrical plug into the non-through hole with the guide portion in contact with the periphery of the opening, and
after the fitting of the cylindrical plug, removing the insertion pin from the non-through hole by moving the insertion pin in the opposite direction to the non-through hole, with the guide portion in contact with the periphery of the opening.