Dust collector and shield for rotary grinder
First Claim
1. A shield for rotary grinders that rotate a grinding disc for grinding or sanding a work surface comprising;
- a hood having an upper surface and a continuous, circular skirt for enclosing a rotatable grinding disc that, when rotating, causes movement of particles and airflow in said hood,an exhaust opening through said skirt for passage of particles and air to a tangently connected exhaust,an air opening in said hood feeding air to the airflow,said air opening being in said upper surface of said hood,said circular skirt having a lower circular edge for contacting the work surface, andsaid upper surface of said hood having a circular flexible section for resilient vertical movement of said circular skirt edge in maintaining contact between the skirt edge and the work surface.
4 Assignments
0 Petitions
Accused Products
Abstract
A shield attachment for fitting on a rotating grinder that encloses and shields the rotating grinder disc or pad, and provides a tangential exhaust port for exhausting dust in moving air created by the rotating disc. The shield has an encircling skirt that rests on the work surface, making an enclosed air cavity around the rotating disc that shields against particles being radiated at high speeds and also contains the air with contaminating dust in its restricted passage to the exhaust. The shield has flexible means for allowing vertical movement of the skirt to assure an enclosed chamber, and has separate air holes for providing air flow to the chamber to replace the air passing through the exhaust port.
127 Citations
8 Claims
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1. A shield for rotary grinders that rotate a grinding disc for grinding or sanding a work surface comprising;
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a hood having an upper surface and a continuous, circular skirt for enclosing a rotatable grinding disc that, when rotating, causes movement of particles and airflow in said hood, an exhaust opening through said skirt for passage of particles and air to a tangently connected exhaust, an air opening in said hood feeding air to the airflow, said air opening being in said upper surface of said hood, said circular skirt having a lower circular edge for contacting the work surface, and said upper surface of said hood having a circular flexible section for resilient vertical movement of said circular skirt edge in maintaining contact between the skirt edge and the work surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A shield for rotary grinders that rotates a grinding disc for grinding or sanding a work surface comprising:
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a hood having an upper surface and a continuous, circular skirt for enclosing a rotatable, grinding disc that, when rotating, causes movement or particles and air flow in said hood, a tubular exhaust extending through said skirt and tangently from the outer periphery of said skirt and in the direction of the air flow, an air opening in said hood for feeding air to the air flow, said circular skirt having a lower circular edge for contacting the work surface, and said hood having a circular flexible section for permitting resilient vertical movement of said circular skirt edge for maintaining contact between the skirt edge and the work surface.
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Specification