Sanding head including a dust extracting shaft casing

Details Sanding head including a dust extracting shaft casing Sanding head including a dust extracting shaft casing

1978-03-17

1979-08-14

Spruill, Robert Louis

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51358, B24B 5506

Patent

active

041641019

ABSTRACT:
A sanding head providing for the extraction of dust produced during sanding, and comprising a shaft casing, a shaft rotatably mounted in the casing and capable of being driven by motor means, a circular backing plate of a ventilated type, which is connected to one end of the shaft, said circular backing plate being provided in its front face with ventilating grooves and having in its center a hollow cylindrical element, which has a closed front end and which is provided, adjacent its closed front end, with lateral windows communicating the inside of the hollow cylindrical element with the ventilating grooves, and a means for detachably fixing an abrasive disk to the closed front end of the hollow cylindrical element. The hollow cylindrical element of the plate is rotatably mounted in the shaft casing at one end thereof, whereas the shaft is rotatably mounted only at the other end of the casing. The shaft, on the one hand, and the casing and the hollow cylindrical element of the backing plate, on the other hand, have respective diameters selected to provide a wide space therebetween. The shaft casing comprises between its two ends a lateral dust outlet pipe for connection to a vacuum cleaner.

REFERENCES:
patent: 1353966 (1920-09-01), Lorenz
patent: 1765808 (1930-06-01), Tone
patent: 2527762 (1950-10-01), Pratt
patent: 3638362 (1972-02-01), Stoll
patent: 3754359 (1973-08-01), Scandaletos
patent: 3932966 (1976-01-01), Stern

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