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US 6,662,867 B1Granted
Controlled heating of a coating material
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsFrank Joseph Macdonald, Ramesh K. Patel, David Paul Aschenbeck
Life of this patent
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Abstract
In a process to control the heating of a coating material for a roof covering, the coating material is heated using a heat exchange medium in a continuous process. The heat exchange medium is cooled in response to a slowdown or stoppage of the continuous heating process to maintain the temperature of the coating material below a predetermined level.
Claims9
A method to control the heating of a filler for a filled asphalt coating for use in a roof covering, in order to control the viscosity of the filled asphalt coating, the method comprising:
- flowing the filler through a heater in a continuous heating process, and heating the filler in the heater using a heat exchange medium;
- monitoring the continuous heating process to detect a slowdown or stoppage thereof;
- in response to the slowdown or stoppage, cooling the heat exchange medium using a cooling device to control the temperature of the filler by maintaining the temperature below a predetermined level;
- mixing the heated filler with asphalt to produce the filled asphalt coating, wherein the controlling of the temperature of the filler results in controlling the viscosity of the filled asphalt coating by maintaining the viscosity within a predetermined range;
- and
- applying the filled asphalt coating to a substrate to produce the roof covering.
3 more elements
Dependencies are inferred from the claim text.