Invention Grant
US09533430B1 Portable adjustable cutting apparatus for cutting and shaping sink holes in stone countertops
有权
便携式可调切割装置,用于在石头台面上切割和成型凹槽
- Patent Title: Portable adjustable cutting apparatus for cutting and shaping sink holes in stone countertops
- Patent Title (中): 便携式可调切割装置,用于在石头台面上切割和成型凹槽
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Application No.: US13655396Application Date: 2012-10-18
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Publication No.: US09533430B1Publication Date: 2017-01-03
- Inventor: Robert M. Kalb
- Applicant: Robert M. Kalb
- Agent Albert W. Watkins
- Main IPC: B28D1/30
- IPC: B28D1/30 ; B23D47/02 ; B24B23/02

Abstract:
Three portable apparatus are operative sequentially to cut and shape sink holes in stone countertops, each adjustably engaging with the same prior art sink template to control reveal. A first apparatus makes linear cuts in stone using a disk-shaped saw blade while adjustable flange wheels follow the template. A lift biases the disk-shaped saw blade out of the stone when not cutting. A second apparatus cuts inside corners and curves using a contour saw blade while adjustable guide fences follow the template. The spindle shaft angle can be varied to leave a finished side vertical. A third polishing apparatus uses an abrasive drum and an adjustable rotating rub collar around the drum abrasive that operatively changes a distance between the drum abrasive and sink template to adjust for different diameter drums and adjust as the drum abrasive diameter changes due to wear.
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