| 摘要 |
An Oil Filter Punch is a hand tool for draining vehicular oil filters. The tool separates into two assemblies: a Valve and Handle segment; and a Punch and Drain Tube segment. A User may obtain Punch and Drain Tubes of different lengths. The purpose of this segmentation is to allow a User to attach the Punch and Drain Tube with the most suitable length for each filter access problem. The Punch is placed against the lowest point of an installed oil filter. Using simple arm strength or a rubber mallet, the tool is driven through the sheetmetal housing and interior partition of the oil filter. Once the tool has penetrated the two sheetmetal surfaces, friction between the tool and the two sheetmetal surfaces holds the tool suspended from the oil filter. With the filter punctured, oil drains through the cavity of the tool to the low end where it is checked by a valve. A suitable container is situated beneath the handle end of the tool, and the valve is opened to allow oil from the oil filter to drain through the tool and into the container. By adjusting the depth of penetration, both chambers of an oil filter can be drained. After the oil has been drained, the tool is extracted.
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