Package unit comprising a packaging and a circular plate-like accessory for power tools contained in the packaging

Patent metadata

Field	Value
Publication number	US-11242184-B2
Application number	US-202117242630-A
Country	US
Kind code	B2
Filing date	Apr 28, 2021
Priority date	Jun 10, 2020
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

The invention refers to a package unit (22) comprising a packaging (20) and at least one polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools, in particular hand-guided polishers or sanders, contained in the packaging (20). It is suggested that the packaging (20) is a flow pack containing only a single polishing pad (2), sanding pad, backing or supporting plate or similar circular plate-like accessory for power tools.

First claim

The invention claimed is:

1. Package unit ( 22 ) comprising a packaging ( 20 ) and a single polishing pad ( 2 ) contained in the packaging ( 20 ) and adapted for use with hand-guided polishers, wherein
the packaging ( 20 ) is a flow pack,
a material of the flow pack ( 20 ) is opaque or the flow pack ( 20 ) has an opaque coating,
the package unit ( 22 ) is manufactured from a material layer, which is either rolled up on a roll or folded into a stack or pile in web form, brought into a tubular form by folding lateral sides of the material layer together and sealing them, inserting the polishing pad ( 2 ) therein and permanently sealing a front side ( 26 ) and an opposite back side ( 28 ) of the tubular form in order to form two transverse airtight sealing seams ( 32 ), and
the flow pack ( 20 ) has a gas enclosed therein after the front side ( 26 ) and the opposite back side ( 28 ) of the flow pack ( 20 ) have been permanently sealed in an airtight manner, the enclosed gas having a larger volume than the polishing pad ( 2 ) contained in the flow pack ( 20 ), and the gas providing the polishing pad ( 2 ) with an air-cushion damping effect during transport and handling of the package unit ( 22 ).

2. Package unit ( 22 ) according to claim 1 , wherein the front side ( 26 ) and the opposite back side ( 28 ) are permanently sealed by means of heat sealing, gluing or welding.

3. Package unit ( 22 ) according to claim 1 , wherein the material of the flow pack ( 20 ) comprises at least one layer made of a plastic foil, including the plastic foil being made of polyethylene terephthalate (PET), polypropylene (PP) or polyethylene (PE) foil.

4. Package unit ( 22 ) according to claim 1 , wherein the material of the flow pack ( 20 ) comprises at least one layer made of a metal foil, including the metal foil being made of aluminium.

5. Package unit ( 22 ) according to claim 1 , wherein the material of the flow pack ( 20 ) comprises a composite laminated material with at least two layers made of different materials, the at least two layers inseparably laminated to each other.

6. Package unit ( 22 ) according to claim 1 , wherein the material of the flow pack ( 20 ) is tear-resistant.

7. Package unit ( 22 ) according to claim 1 , wherein the flow pack ( 20 ) has at least one tearing region ( 44 ) positioned near at least one of the two transverse airtight sealing seams ( 32 ).

8. Package unit ( 22 ) according to claim 7 , wherein the at least one tearing region ( 44 ) comprises a perforation or a slit.

9. Package unit ( 22 ) according to claim 1 , wherein the gas is a specific packaging gas, which is introduced into the flow pack ( 20 ) in order to flush ambient air out of the flow pack ( 20 ) before permanently sealing the front side ( 26 ) and the opposite back side ( 28 ) of the flow pack ( 20 ) in an airtight manner and in order to protect the integrity of the single polishing pad ( 2 ).

10. Package unit ( 22 ) according to claim 1 , wherein the flow pack ( 20 ) has a transparent window ( 42 ) that allows a view of the single polishing pad ( 2 ).

Assignees

• Valentini Guido

Inventors

• Valentini Guido

Classifications

• B65D83/08

  for dispensing thin flat articles in succession (for surgical scalpel blades A61B17/3215) · CPC title

• B24B37/20

  Lapping pads for working plane surfaces · CPC title

• B65B31/04 Primary

  Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied · CPC title

• B65D2575/58

  Opening or contents-removing devices added or incorporated during package manufacture · CPC title

• B65D33/22 Primary

  using heat-activatable adhesive · CPC title