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US 5,806,607 AGranted
Device for skimming
AssigneeThames Water Utilities Limited
InventorTrevor G. Sanders
Life of this patent
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Abstract
The invention relates to a device mountable on a dozer blade for skimming a substance to a required depth, comprising an open box or collector for skimmed material, and a cutting edge of a rear wall which is used to effect skimming. The depth of skim is adjustable by height adjusting means which are described in the specification. A slow sand filter may be cleaned using a device according to the invention.
Claims19
A device for skimming a layer from a substrate over which the device is in use traversed, comprising:
- (i) a body;
- (ii) an edge defined by the body for skimming the substrate;
- (iii) a collector for material skimmed;
- (iv) means for controlling the thickness of skim;
- (v) the body having a curved wall for directing skimmed material into the collector;
- and
- (vi) releasable clamping means for clamping the device to a blade mounted to a dozer, the clamping means comprising:
- toggle means for clamping the device to the blade of the dozer, and
- inter-slidable blocks for clamping the device at at least one edge of the dozer blade, one of the inter-slidable blocks being mountable in a hole in the dozer blade.
6 more elements
Dependencies are inferred from the claim text.