US 7,540,055 B1
	Cleaning cards for internal surfaces of machine components
Glen Alan Bailey, Minot, Me. (US)
Assigned to Enefco International, Inc., Auburn, Me. (US)
Filed on Jun. 14, 2005, as Appl. No. 11/151,950.
Int. Cl. A47L 13/00 (2006.01); B32B 1/00 (2006.01)

U.S. Cl. 15—210.1  [15/104.001; 428/174]

27 Claims

1. A cleaning card for use in cleaning internal surfaces of machine components, said cleaning card including a substrate having a central plane between opposed surfaces thereof, a machine direction dimension defined between opposed leading and trailing end edges and a transverse direction dimension defined between opposed side edges, said opposed surfaces each having a plurality of discrete raised areas, said discrete raised areas each including a peak and an inclined peripheral leading wall having a remote edge spaced from said peak, said peak of each raised area being further from the central plane than the remote edge of the inclined peripheral leading wall, the leading walls of a plurality of said discrete raised areas having surface regions between the peaks and remote edges, said surface regions including openings therethrough for assisting in removing debris from said machine components.