03.15.19
Harald Hermann Hundorf, Bonn, Germany; Peter Ostle, Euskirchen, Germany; Siegfried Link, Euskirchen, Germany; and Martin Dohmen, Euskirchen, Germany.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 7/27/11
Issued: 1/29/19
An apparatus for making a structure that comprises a combination of a particulate material and a substrate material, including: a) a first moving endless surface with a direction of movement (MD) and with one or more of reservoirs, said first moving endless surface and reservoirs thereof being for transferring particulate material to: b) a second moving endless surface with a direction of movement (MD) carrying a substrate material for receiving said particulate material from said first moving endless surface in a receiving zone and for transferring said combination of said particulate material and said substrate material in a transferring zone, said second moving endless surface being in said receiving zone adjacent a first vacuum chamber and being in gas communication therewith, and said second moving endless surface being in said transferring zone adjacent a second vacuum chamber, and being in gas communication therewith, said receiving zone and said transferring zone being adjacent (in MD) one another, c) an adhesive application unit for applying adhesive to said combination of said substrate and said particulate material, said adhesive application unit positioned downstream of said first moving endless surface opposite said second moving endless surface and said second vacuum chamber in said transferring zone; wherein the ratio of the said negative vacuum pressure in said first vacuum chamber to the negative vacuum pressure in said second vacuum chamber is at least 4:3; and d) an anvil roll downstream of said transferring zone for receiving said combination of said particulate material and said substrate material and combining said combination with a further substrate material.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 7/27/11
Issued: 1/29/19
An apparatus for making a structure that comprises a combination of a particulate material and a substrate material, including: a) a first moving endless surface with a direction of movement (MD) and with one or more of reservoirs, said first moving endless surface and reservoirs thereof being for transferring particulate material to: b) a second moving endless surface with a direction of movement (MD) carrying a substrate material for receiving said particulate material from said first moving endless surface in a receiving zone and for transferring said combination of said particulate material and said substrate material in a transferring zone, said second moving endless surface being in said receiving zone adjacent a first vacuum chamber and being in gas communication therewith, and said second moving endless surface being in said transferring zone adjacent a second vacuum chamber, and being in gas communication therewith, said receiving zone and said transferring zone being adjacent (in MD) one another, c) an adhesive application unit for applying adhesive to said combination of said substrate and said particulate material, said adhesive application unit positioned downstream of said first moving endless surface opposite said second moving endless surface and said second vacuum chamber in said transferring zone; wherein the ratio of the said negative vacuum pressure in said first vacuum chamber to the negative vacuum pressure in said second vacuum chamber is at least 4:3; and d) an anvil roll downstream of said transferring zone for receiving said combination of said particulate material and said substrate material and combining said combination with a further substrate material.
