US Patent No: 5,592,725

Number of patents in Portfolio can not be more than 2000

Tampon, as well as a method and a device for manufacturing it

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Importance

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Abstract

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A tampon is produced rolling up a strip of fiber fleece material to form a cylindrical blank having a cylindrical mantle with mantle sections uniformly distributed over the circumference of the cylindrical blank. Pressing forces are applied to the mantle sections so as to form a preformed blank having a core and longitudinal ribs extending in the longitudinal direction of the preformed blank and distributed adjacent to one another so as to surround the core. The fiber fleece material of the core is compressed more strongly than the fiber fleece material of the longitudinal ribs. The longitudinal ribs are subjected to radial pressure forces for finish-shaping the preformed blank to form the tampon. The core of the tampon has a circular cross-section comprising an annular outer area and a circular central area surrounded by the annular outer area. The fiber fleece material of the circular central area is compressed less than the fiber fleece material of the annular outer area.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
RUGGLI PROJECTS AGHAGENDORN-CHAM7

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brinker, Alfred Gevelsberg, DE 10 111

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ACCANTIA (HOLDINGS) LIMITED (1)
* 5,403,300 Tampons 40 1994
 
Dr. Carl Hahn, G.m.b.H. (1)
* 4,498,218 Apparatus for transmitting a tampon blank to a tampon press 14 1982
 
KAO CORPORATION (1)
* 4,685,178 Tampon-forming device 39 1986
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
* 4,951,368 Apparatus for compressing material into a tampon 23 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
The Procter & Gamble Company (19)
* 5,964,689 Method of making an absorbent interlabial device with a central groove 14 1997
* 6,206,867 Tampon with flexible panels 32 1999
7,047,608 Method of producing a shaped tampon 9 2002
7,549,982 Tampon with recessed portions having multiple widths 5 2003
7,338,483 Tampon 6 2003
7,311,699 Tampon with raised portions 4 2003
7,214,218 Tampon with raised portions having multiple widths 2 2003
7,097,638 Tampon having recessed portions 4 2003
7,087,045 Tampon having recessed portions 10 2003
7,070,585 Tampon having recessed portions 10 2003
6,939,340 Tampon with adjacent wide and narrow raised portions 11 2004
7,785,308 Tampon absorbency indicators on package 0 2005
7,175,616 Absorbency protuberance identifier disposed on each tampon in the article array 1 2005
8,029,485 Tampon with offset grooves 6 2005
7,753,898 Tampon having indicator enclosed in a tampon applicator 0 2005
7,654,991 Product array having indicators 0 2005
7,014,637 Tampon applicator having indicators 8 2005
7,166,101 Tampon outer surface having increasing number of written identifiers to indicate absorbency 3 2005
8,028,385 Patterned tampon and method of making 0 2007
 
EVEREADY BATTERY COMPANY, INC. (6)
* 6,310,269 Tampon especially for feminine hygiene and a process and apparatus for producing this 63 1995
* 6,433,246 Tampon having improved early expansion characteristics 28 1995
6,743,965 Apertured polymeric film web with diol/surfactant additive 3 2000
6,570,055 Apertured polymeric film web with surfactant mixture additive 23 2000
* 6,748,634 Tampon having improved early expansion characteristics 8 2002
* 8,735,647 Tampon having spirally shaped grooves 0 2012
 
ONTEX HYGIENEARTIKEL DEUTSCHLAND GMBH (5)
7,967,803 Tampon with ribs having a median diverging from the radius 6 2004
8,864,732 Tampon 0 2006
* 8,777,916 Tampon applicator assembly 0 2006
* 8,747,378 Tampon 2 2007
8,574,210 Tampon with improved absorption capacity 3 2008
 
JOHNSON & JOHNSON GMBH (4)
6,889,409 Tampon, especially for feminine hygiene, and a process and apparatus for producing this 16 2001
7,833,210 Tampon for feminine hygiene and process and apparatus for manufacturing the same 4 2003
8,403,879 Tampon for feminine hygiene and process and apparatus for manufacturing the same 0 2010
8,353,890 Tampon for feminine hygiene and process and apparatus for manufacturing the same 2 2010
 
MCNEIL-PPC, INC. (4)
* 5,911,712 Tampon, especially for feminine hygiene, and process and apparatus for producing it 65 1997
* 5,832,576 Apparatus for producing a tampon having densified, solid, fibrous core 27 1997
* 5,813,102 Process for producing a tampon having densified, solid, fibrous core 7 1997
* 5,909,884 Process and apparatus for continuous production of length portions from a strand of fluid-absorbing material 15 1998
 
KIMBERLY-CLARK WORLDWIDE, INC. (2)
8,293,968 Dual mode absorbent tampon 2 2005
8,827,974 Absorbent tampon for feminine hygiene 0 2005
 
PLAYTEX PRODUCTS, INC. (1)
8,197,434 Tampon assembly having shaped pledget 0 2004
 
RUGGLI PROJECTS AG (1)
8,468,662 Press for producing a tampon 0 2010
 
UNI-CHARM CORPORATION (1)
6,719,743 Sanitary tampon 27 2000
 
Other [Check patent profile for assignment information] (2)
* 7,059,026 Tampon especially for feminine hygiene and a process and apparatus for producing this 12 2005
8,912,383 Dual mode absorbent tampon 0 2012
* Cited By Examiner