Granted Patent B1

US 6,931,822 · App. 10/835,246 · Granted Aug 23, 2005

Abstract

Claims (16)

1. A method for covering an article comprising:

dispensing a covering material from a dispenser over a vertically retractable elevator;

releasing an article from a magazine assembly holding a plurality articles on to the covering material and the elevator;

lowering the elevator through a slot to fold the covering material upward around one or more sides of the article; and

tucking one or more free edges of the covering material directly into the article.

2. The method of claim 1 further comprising trimming and welding loose covering material over one or more corners of the article.

3. A method for covering an article comprising:

providing an article with a top surface, bottom surface and four side surfaces, wherein covering material surrounds a bottom surface and the four side surfaces and free ends of the covering material extend over the top surface;

conducting the article on a conveyor to a first tucking station, wherein the first tucking station includes at least two automated first tucking station plunging apparatuses positioned parallel and across from one another over a respective parallel edge of the top surface of the article;

plunging opposite and parallel free ends of the covering material into the top surface of the article with the at least two automated first tucking station plunging apparatuses along the parallel edges of the top surface of the article;

conducting the article on a conveyor to a second tucking station, wherein the second tucking station includes at least two automated second tucking station plunging apparatuses positioned parallel and across from one another over an edge of the top surface of the article that is perpendicular to the parallel edges along which the loose ends of covering material were plunged at the first tucking station; and

plunging opposite and parallel remaining free ends of the covering material into the top surface of the article with the at least two automated second tucking station plunging apparatuses along the parallel edges of the top surface of the article.

4. The method of claim 3 wherein the first and second station plunging apparatuses each include a plurality of automatically actuated plungers.

5. The method of claim 4 wherein the first and second station plunging apparatuses each include rollers for moving along a tuck line of the plungers.

6. The method of claim of 5 wherein each of the first and second station plunging apparatuses is laterally actuated by a cylinder selected from the group consisting of pneumatic and hydraulic cylinder.

7. The method of claim 4 wherein the automatically actuated plungers are connected to one or more hydraulic or pneumatic cylinders.

Assignments (13)