Roll or roller – Concentric layered annulus
Reexamination Certificate
2011-08-23
2011-08-23
Daniels, Matthew J (Department: 1741)
Roll or roller
Concentric layered annulus
C492S040000, C492S041000, C492S053000, C065S253000, C065S374100
Reexamination Certificate
active
08002687
ABSTRACT:
Methods of reinforcing a fibrous roller cladding material, reinforced roller cladding materials and clad lehr rollers wherein the cladding comprises a reinforced fibrous material are disclosed. The roller cladding material, which comprises a fiber board, is reinforced by a method comprising firstly contacting the cladding material with a fluid medium comprising a reinforcing agent whereby fluid is absorbed by the cladding material, and secondly, drying the cladding until the surface of the cladding is dry to the touch, characterized in that the reinforcing agent comprises a compound of phosphorus or a compound of boron. Roller cladding materials reinforced according to the methods disclosed have an improved resistance to cullet damage. The reinforced roller cladding material may be used as the cladding of a clad lehr roller, of the type used for example to convey flat glass in sheet or ribbon form.
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Cohen Jodi
Daniels Matthew J
Marshall & Melhorn LLC
Pilkington Group Limited
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