| 摘要 |
A device for marking hidden delaminations in a structure subject to hidden delaminations comprising a wheeled spray paint can holder, wherein said holder is adapted to hold a paint can containing a nozzle which when depressed releases an upward spray of paint, and wherein said holder is fixedly connected to an outer tube containing therein an inner tube adapted for freely sliding inside said outer tube, wherein said inner tube contains a section extending beyond said outer tube in an upper axial direction, and wherein said inner tube is mounted on top of a spring in said outer tube, and wherein said inner tube contains a protrusion in said section, and wherein said inner tube contains one or more wheels, at or near the upper end of said section, for rolling said holder on an overhead surface, and wherein said outer tube contains means fixedly attached thereto for engaging said spring and located inside said outer tube and below said spring, and wherein when said outer tube is adapted through said means to connect to an extension pole through said outer tube so as to engage said spring, and wherein when said extension pole is connected in a fixed relationship to said means and is urged against said spring while said one or more wheels are in contact with said overhead surface, said protrusion is urged against said nozzle, thereby releasing said upward spray of paint.
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