Disposable fluted paperboard plates and method of making same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-001/00
B31B-045/00
A47G-019/03
출원번호
US-0778232
(2007-07-16)
등록번호
US-9555594
(2017-01-31)
발명자
/ 주소
Littlejohn, Mark B.
Breining, Michael A.
Mejeur, Larry A.
출원인 / 주소
DIXIE CONSUMER PRODUCTS LLC
인용정보
피인용 횟수 :
3인용 특허 :
15
초록▼
A paperboard plate such as a paper plate includes a generally planar bottom portion, an upwardly and outwardly extending fluted sidewall, wherein the sidewall comprises a plurality of sidewall flutes substantially around the outer perimeter of the plate to define a fluted perimeter. The flutes are s
A paperboard plate such as a paper plate includes a generally planar bottom portion, an upwardly and outwardly extending fluted sidewall, wherein the sidewall comprises a plurality of sidewall flutes substantially around the outer perimeter of the plate to define a fluted perimeter. The flutes are suitably present at fewer than 3.5 flutes per inch; the plate has a radial profile with a single transition; and the diameter/flute length ratio is greater than 6. The plates are formed in a punch-through die cutting and forming tool from a plurality of paperboard web layers at increased productivities as compared with conventional heated press-forming.
대표청구항▼
1. A paperboard plate formed from a paperboard blank, comprising: a) a generally planar bottom portion;b) an upwardly and outwardly extending fluted sidewall portion, wherein the sidewall portion comprises a plurality of flutes arranged substantially around an outer perimeter of the bottom portion t
1. A paperboard plate formed from a paperboard blank, comprising: a) a generally planar bottom portion;b) an upwardly and outwardly extending fluted sidewall portion, wherein the sidewall portion comprises a plurality of flutes arranged substantially around an outer perimeter of the bottom portion to define a fluted perimeter, wherein the flutes are present at fewer than about 3.5 flutes per inch of the fluted perimeter;c) a radial profile having a single transition of about 15° to about 50° disposed between the bottom portion and the sidewall portion;d) a plate diameter to flute length ratio of greater than about 6, wherein the plate has a basis weight of greater than 75 pounds per ream; ande) a coating comprising polyethylene disposed on a top side and bottom side of the paperboard blank and wherein the plate comprises the coating on its top side and bottom side. 2. The paperboard plate of claim 1, wherein the single transition is about 15° to about 45°. 3. The paperboard plate of claim 1, wherein the fluted perimeter comprises of from about 40 to about 80 flutes, wherein the fluted perimeter comprises a plurality of crests and troughs without any inter-pleating therebetween. 4. The paperboard plate of claim 1, wherein the coating provides resistance to grease, water, or oil. 5. The paperboard plate of claim 1, wherein the plate diameter is about 9 inches, and the single transition has a radius of curvature ranging from about 0.1 inches to about 0.015 inches. 6. The paperboard plate of claim 5, wherein the polymeric coating is present at from about 0.1 to about 2 mil on either or both of a topside or a bottomside of the plate. 7. The paperboard plate of claim 6, wherein the plate has a basis weight of about 85 pounds per ream to about 115 pounds per ream. 8. The paperboard plate of claim 5, wherein the plate has a basis weight of about 85 pounds per ream to about 130 pounds per ream. 9. The paperboard plate of claim 1, wherein the plate diameter is about 9 inches and the plate diameter to flute length ratio is of from about 6.5 to about 9.5. 10. The paperboard plate of claim 1, wherein the plate has from about 1.5 to about 2.25 flutes per inch of perimeter. 11. The plate of claim 1, further comprising at least one inflection disposed on the fluted sidewall portion. 12. The plate of claim 11, wherein each inflection comprises a curve. 13. The paperboard plate of claim 1, wherein the plate has a basis weight of about 75 pounds per ream to about 140 pounds per ream. 14. The paperboard plate of claim 1, wherein the plate has a basis weight of about 85 pounds per ream to about 115 pounds per ream. 15. A plate formed from a paperboard blank, comprising: a central portion;a sidewall at least partially disposed on the central portion;a radial profile having a single angular transition disposed between the central portion and the sidewall, wherein: the angular transition is of about 15° to about 50°;the sidewall comprises less than about 3.5 flutes per inch,the plate has a basis weight of greater than 75 pounds per ream,the plate has a ratio of the central portion diameter to flute length greater than about 6; anda coating comprising polyethylene disposed on a top side and bottom side of the paperboard blank, and wherein the plate comprises the coating on its top side and bottom side. 16. The plate of claim 15, wherein the plate diameter is about 9 inches, and the plate has a basis weight of greater than about 75 pounds per ream. 17. The plate of claim 15, wherein the angular transition is about 15° to about 45°. 18. The plate of claim 15, wherein the sidewall consists of about 40 to about 80 flutes disposed about a perimeter thereof. 19. The plate of claim 15, wherein the coating provides resistance to at least one of grease, water, and oil. 20. The plate of claim 19, wherein the coating provides resistance to each of grease, water, and oil. 21. The paperboard plate of claim 20, wherein the plate has a basis weight of about 85 pounds per ream to about 115 pounds per ream. 22. The plate of claim 19, wherein the coating has a thickness of from about 0.1 mil to about 2 mil. 23. The paperboard plate of claim 15, wherein the plate has a basis weight of about 85 pounds per ream to about 115 pounds per ream. 24. The paperboard plate of claim 19, wherein the plate has a basis weight of about 85 pounds per ream to about 130 pounds per ream. 25. The plate of claim 15, wherein the ratio of the central portion diameter to flute length ratio is of from about 6.5 to about 9.5. 26. The plate of claim 15, wherein the number of flutes per inch of a perimeter of the sidewall is of from about 1.5 to about 2.25. 27. The plate of claim 15, further comprising at least one inflection disposed on the sidewall. 28. The plate of claim 27, wherein each inflection comprises a curve. 29. The paperboard plate of claim 15, wherein the plate has a basis weight of about 75 pounds per ream to about 140 pounds per ream. 30. A plate formed from a paperboard blank, comprising: a central portion that is substantially flat;a sidewall extending from a perimeter of the central portion;a single angular transition of from about 15° to about 60° disposed between the central portion and the sidewall;at least one inflection disposed on the sidewall;of from about 40 to about 80 flutes disposed on the side wall at less than about 3.5 flutes per inch; anda coating comprising polyethylene disposed on a top side and bottom side of the paperboard blank, wherein: the sidewall has no pleats;the central portion diameter is about 9 inches;a ratio of the central portion diameter to flute length is greater than about 6;the plate has a basis weight of greater than about 75 pounds per ream, andthe plate comprises the coating on its top side and bottom side. 31. The plate of claim 30, wherein each inflection comprises a curve. 32. The paperboard plate of claim 30, wherein the plate has a basis weight of about 85 pounds per ream to about 115 pounds per ream. 33. The paperboard plate of claim 30, wherein the plate has a basis weight of about 75 pounds per ream to about 130 pounds per ream. 34. The paperboard plate of claim 30, wherein the plate has a basis weight of about 85 pounds per ream to about 130 pounds per ream.
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이 특허에 인용된 특허 (15)
John William Toussant ; Peter Morris, Articulable food container.
Littlejohn, Mark B.; Van Handel, Gerald J.; Zelinski, Thomas W.; Dees, Jerome G., Disposable food container with a linear sidewall profile and an arcuate outer flange.
Cheshire James O. (Neenah WI) Littlejohn Mark B. (Appleton WI) Garns Denny R. (Appleton WI) Sandstrom Erland S. (Menasha WI), Rigid paperboard container.
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