Back to results
US 4,161,086 AGranted
Continuous shot-blasting machine
AssigneeGeorg Fischer Aktiengesellschaft
InventorSergej Toedtli
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeGeorg Fischer Aktiengesellschaft
InventorSergej Toedtli
Estimating the term…
A continuous shot-blasting machine for surface treating arbitrarily arranged batches of workpieces includes at least one blasting chamber for shot-blasting the workpieces and a turn-over device for turning over the workpieces to expose all surfaces for treatment. A pair of supporting racks carry the workpieces along a conveyor to and from the blasting chamber. The workpieces are carried on one of the supporting racks through the chamber for blasting treatment of their exposed surfaces and after being turned over are carried on the other supporting rack through the same chamber or through a second chamber for blasting treatment of the newly exposed surfaces. The turn-over device rotates the first supporting rack and workpieces through 180 degrees about a substantially horizontal axis after the first shot-blasting treatment to turn the workpieces over for deposit onto the other supporting rack. The turn-over device includes electromagnetic or hydraulic members for holding the workpieces on the supporting rack during the turning operation, and for releasing the workpieces from the supporting rack after being turned over to expose the untreated surfaces.
A continuous shot-blasting machine for surface treating batches of workpieces comprising at least one blasting chamber for shot-blasting the workpieces, first and second supporting racks for carrying the workpieces through said chamber, conveyor means for transporting said supporting racks with the workpieces through said chamber, at least one turn-over device for rotating one of said first and second supporting racks with workpieces thereon through 180 degrees about a substantially horizontal axis, and means for temporarily securing the workpieces to said supporting rack being rotated during rotation of said supporting rack and for releasing the workpieces from said supporting rack to deposit the turned-over workpieces onto the other one of said first and second supporting racks so that untreated surfaces of the workpieces are being exposed for shot-blasting treatment.
Dependencies are inferred from the claim text.