公开(公告)号：US12209460B2

公开(公告)日：2025-01-28

申请号：US18519763

申请日：2023-11-27

Applicant: Concore BV

Inventor： C. G. van Veldhuisen ,  Sven Vallgren

IPC: E21B11/00 ,  B23B51/04 ,  B28D1/14

Abstract: A method for creating a weep hole is disclosed. The weep hole is drilled in an uncured, concrete, hollow core structural component having one or more external surfaces and one or more internal surfaces. The weep hole is drilled using a drilling apparatus comprising a drill, a rotating drill bit with an internal fluid passageway, a power source, and a pressurized fluid source. Loose, uncured concrete material deposited near the weep hole on the one or more internal surface as a result of drilling the weep hole is removed by releasing pressurized fluid which flows from the pressurized fluid source, through the drill and the rotating drill bit.

公开(公告)号：US11572741B2

公开(公告)日：2023-02-07

申请号：US17245702

申请日：2021-04-30

Applicant: Concore BV

Inventor： C. G. van Veldhuisen ,  Sven Vallgren

IPC: E21B11/00 ,  B28D1/14 ,  B23B51/04

Abstract: A method for creating a weep hole is disclosed. The weep hole is drilled in an uncured, concrete, hollow core structural component having one or more external surfaces and one or more internal surfaces. The weep hole is drilled using a drilling apparatus comprising a drill, a rotating drill bit with an internal fluid passageway, a power source, and a pressurized fluid source. Loose, uncured concrete material deposited near the weep hole on the one or more internal surface as a result of drilling the weep hole is removed by releasing pressurized fluid which flows from the pressurized fluid source, through the drill and the rotating drill bit.