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US 8,465,695 B2Granted
Washing test apparatus
AssigneeAlbert Browne Limited
InventorRichard Bancroft
Life of this patent
Estimating the term…
Abstract
Washing efficacy test apparatus (2) is provided which includes a holder (4) and a test soil device (6) for location with said holder (4). The test soil device (6) is in the form of sheet material with a test soil substance (34) provided thereon. The holder in one example includes two members (8, 10) between which the test soil device (6) is detachably attached so that the device (6) can be easily removed for inspection and maintained in a required orientation in the washing apparatus (2) in use.
Claims21
A washing test apparatus comprising:
- a sheet of material comprising an indicator, the indicator comprising a colorant, a protein, a lipid, and a polysaccharide;
- and
- a holding device comprising at least first and second members joined together by a hinge, at least a portion of said first and/or second members being capable of undergoing relative movement between an open position and a closed position to allow for removable insertion of said sheet therebetween, and a spring positioned between the first and second members to bias said portion of said first and/or second members toward the closed position, wherein said sheet is removably retained between said portion of the first and/or second members while in the closed position, and said portion includes two or more surfaces provided in different directions, angles and/or orientations relative to each other, said sheet following the contours of said surfaces when located therebetween to allow multi-directional wash testing and to maintain said sheet in position during use.
Dependencies are inferred from the claim text.