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US 4,984,960 AGranted
Vacuum track and pallets
AssigneePrecision Screen Machines, Inc.
InventorSandor Szarka
Life of this patent
Estimating the term…
Abstract
An apparatus having a vacuum track, and a vacuum pallet for use therewith. The apparatus comprises a vacuum duct having a single vacuum pump and a plurality of ports which individually open when said vacuum pallet passes thereover. The pallet has a shoe which fits snugly over the port to facilitate evaculation of the pallet, and has small holes in the article-supporting surface through which the vacuum acts to hold an article in place thereon.
Claims5
A vacuum track apparatus comprising:
- a frame;
- a vacuum duct, supported by said frame, having a plurality of ports spaced longitudinally along the duct;
- a vacuum means operatively connected to said vacuum duct adapted to generate a vacuum in said duct;
- a pallet advancing means mounted on said frame for moving one or more vacuum pallets over said ports and for positioning the pallets at one or more operating stations;
- and,
- actuating means responsive to the movement of pallets over said ports for opening and closing said ports, said actuating means mounted to said duct and adapted to individually open said ports when a pallet is passing thereover and to otherwise keep said ports closed.
3 more elements
Dependencies are inferred from the claim text.