Patent · US Active

Method and apparatus for forming a batt of particulate material for use as a component in an absorbent core assembly

US8221672B2 · kind B2 · utility

27Cited by

16References

20Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Darrell Ian Brown · Mason, US
Bradley Edward Walsh · Cincinnati, US
Joseph Allen Eckstein · Sunman, US
Horst Blessing · Cincinnati, US
Volker Maier · Euskirchen, DE
Siegfried Link · Schleiden, DE

Key dates

Filing date	Feb 9, 2011
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Feb 9, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F13/15658
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method and apparatus for forming a batt of particulate material which may be used in an absorbent article. The apparatus may include a vacuum zone, an air impermeable fence zone adjacent to the vacuum zone, and an air permeable fence zone adjacent to the vacuum zone. The air permeable fence zone may comprise an ambient air entry conduit in communication with an ambient air exit port. The method may include providing a laydown drum and a first web of material, positioning the first web of material substantially adjacent to the laydown drum, generating a vacuum through the laydown drum, depositing particulate matter onto the first web of material, and rotating the laydown drum.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.