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A convertible bread packaging product preserves loaf bread. The packaging product includes a foldable paperboard blank having first and second opposing end edges and first and second opposing side edges. The blank is folded along three lateral fold lines, and is attached along the first and second e

A convertible bread packaging product preserves loaf bread. The packaging product includes a foldable paperboard blank having first and second opposing end edges and first and second opposing side edges. The blank is folded along three lateral fold lines, and is attached along the first and second end edges to define a plurality of joined walls. The three lateral fold lines include a middle fold line and two outer fold lines. First and second spaced-apart scores are formed with the blank in a margin adjacent one of the first and second side edges. The first and second scores extend parallel to the side edge and intersect respective outer fold lines. The walls cooperate to form a protective enclosure having a length dimension greater than a width dimension, and at least one open end for receiving a loaf of bread. The enclosure is movable between a collapsed position for stacking the packaging product prior to use, and an open position for storing the loaf of bread during transport and handling. In the open position, diagonally opposed corners of the enclosure are folded inwardly at respective scores to rigidify the walls and to retain the loaf of bread within the enclosure.

대표청구항 ▼

A convertible bread packaging product preserves loaf bread. The packaging product includes a foldable paperboard blank having first and second opposing end edges and first and second opposing side edges. The blank is folded along three lateral fold lines, and is attached along the first and second e

A convertible bread packaging product preserves loaf bread. The packaging product includes a foldable paperboard blank having first and second opposing end edges and first and second opposing side edges. The blank is folded along three lateral fold lines, and is attached along the first and second end edges to define a plurality of joined walls. The three lateral fold lines include a middle fold line and two outer fold lines. First and second spaced-apart scores are formed with the blank in a margin adjacent one of the first and second side edges. The first and second scores extend parallel to the side edge and intersect respective outer fold lines. The walls cooperate to form a protective enclosure having a length dimension greater than a width dimension, and at least one open end for receiving a loaf of bread. The enclosure is movable between a collapsed position for stacking the packaging product prior to use, and an open position for storing the loaf of bread during transport and handling. In the open position, diagonally opposed corners of the enclosure are folded inwardly at respective scores to rigidify the walls and to retain the loaf of bread within the enclosure. ts by an induction heater at a frequency of about 20 kilohertz or greater. 9. The method of solid state welding metal parts together as defined in claim 1, wherein said method includes heating said opposed surfaces of said metal parts by an induction heater at a frequency of about 20 kilohertz or greater such that the induction heating is confined to about the first 0.050 inches or less of said opposed surfaces of said metal parts. 10. The method of solid state welding metal parts together as defined in claim 1, wherein said method includes flooding said opposed surfaces of said metal parts with a non-reactive fluid while heating said opposed surfaces with an induction heater to the hot working temperature of said metal parts. 11. The method of solid state welding metal parts together as defined in claim 1, wherein said method further comprises the step of flooding said opposed surfaces of said metal parts with a non-oxidizing gas comprising primarily nitrogen gas while heating said opposed surfaces with an induction heater to the hot working temperature of said metal parts. 12. The method of solid state welding metal parts together as defined in claim 1, wherein said method further comprises the step of precoating said opposed surfaces of said metal parts with a protective barrier substance. 13. The method of solid state welding metal parts together as defined in claim 1, further comprises the step of maintaining said opposed surfaces in a substantial vacuum atmosphere. 14. The method of solid state welding ferromagnetic metal parts together as defined in claim 1, wherein said method includes induction heating said opposed surfaces to the Curie temperature in a time of less than about 10 seconds. 15. The method of solid state welding metal parts together as defined in claim 1, wherein said method includes heating said opposed surfaces in a vacuum with an induction heater to the hot working temperature of said metal parts. 16. The method of solid state welding metal parts together as defined in claim 1, wherein said metal parts are formed of a ferrous metal and said method includes precoating said opposed surface with less than 0.001" thickness of an aluminum coating, while heating said opposed surfaces with an induction heater to the hot working temperature of said metal parts. 17. A method of solid state welding metal parts together having opposed generally coplanar parallel surfaces, said method comprising: locating a high frequency induction heater between said opposed surfaces of said metal parts; induction heating about the first 0.050 inches or less of said opposed surfaces of said metal parts with said high frequency induction heater at a frequency of 8 kilohertz or greater while simultaneously flooding said opposed surfaces of said metal parts with a non-oxidizing gas; quickly removing said high frequency induction heater from between said opposed surfaces of said metal parts and continuously moving at least one of said parts relative to the other of said parts generally parallel to said opposed co-planar parallel surfaces; and quickly bringing said opposed surfaces of said parts together while continuing to move said one at least one of said parts to friction weld said opposed surfaces of said metal parts together, wherein at least about 90% of the energy of welding is supplied by said high frequency induction heater and the balance of welding energy is supplied by conventional kinetic energy. 18. The method of solid state welding metal parts together as defined in claim 17, wherein the said method includes continuously moving said one of said parts in an with orbital motion. 19. The method of solid state welding metal parts together as defined in claim 17, wherein the method includes moving said one of said parts in a reciprocating motion. 20. The method of solid state welding metal parts together as defined in claim 17, wherein said method includes accelerating at least one of said parts to a rotational vel