Ball-passing test specimen and method of using the ball-passing test specimen

The ball-shaped drain pipe test specimen with a buoyancy body, weight, and dewatering holes, along with RFID tags, addresses water accumulation and damage issues, facilitating efficient and cost-effective drain pipe testing through a computerized management system.

JP7884346B2Active Publication Date: 2026-07-03HASEKO CORP +6
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
HASEKO CORP
Filing Date
2022-03-16
Publication Date
2026-07-03

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Abstract

To provide a ball-passing test piece for a drain pipe that prevents an identification medium from falling and facilitates avoiding water damage.SOLUTION: A test piece T comprises a spherical buoyant piece T1, and a spherical and hollow first container T2 that covers an entire circumference of the buoyant piece T1. The buoyant piece T1 includes: a weight T11 that is attached such that the center of gravity of the whole is lowered; and a sheet-like identification medium T12 that is attached so as to be located higher than the center of gravity. The first container T2 includes a dewatering hole T21 for draining water that has flooded inside.SELECTED DRAWING: Figure 2
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