Invention Grant
- Patent Title: Internal visual weld inspection apparatus
- Patent Title (中): 内部视觉焊接检验仪器
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Application No.: US467271Application Date: 1995-06-06
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Publication No.: US5654795APublication Date: 1997-08-05
- Inventor: Oliver T. Dierlam
- Applicant: Oliver T. Dierlam
- Applicant Address: TX Houston
- Assignee: CRC-Evans Pipeline International, Inc.
- Current Assignee: CRC-Evans Pipeline International, Inc.
- Current Assignee Address: TX Houston
- Main IPC: G01N21/954
- IPC: G01N21/954 ; G01N21/00
Abstract:
A visual inspection apparatus (18) is disclosed for viewing welds between pipe sections (26, 28). The apparatus (18) can be part of a combination plug clamp and inspection apparatus (12) or used independently of the plug clamp (12). The TV camera (20) is aimed along the center line axis (52) of the apparatus and pipeline and a mirror (76) reflects the image of a portion of the weld into the lens of the camera. The mirror can be rotated to allow the entire circumference of the weld to be inspected. A weighted ring (102) provides a reference relative to the vertical independent of the orientation of the apparatus within the pipeline.
Public/Granted literature
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