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US 12,605,856 B2Granted
Tactile wear indicator for a cutting element
AssigneeKoninklijke Philips N.V.
InventorsPeter Daniel Martijn Van Zoest, Dirk Hendrik Wevers, Arno Kroezen
Life of this patent
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Abstract
A cutting element (106) for a hair cutting device (100) has a tactile wear indicator (140) that defines a skin-contact surface of the cutting element (106). The tactile wear indicator (140) has a wearable outer layer (148) of coating material having a dry lubricant additive (150), which reduces friction between the cutting element (106) and the skin of a user during shaving.
Claims13
A cutting element for a hair cutting device, wherein the cutting element comprises:
- a cutting edge, a skin-facing region and a tactile wear indicator in the skin-facing region;
- wherein the tactile wear indicator comprises a wearable outer layer that defines a skin-contact surface of the cutting element, the wearable outer layer comprising a coating material having a plurality of dry lubricant particles dispersed within a binding agent,
- wherein the binding agent defines a layer and at least some of the dry lubricant particles have spans that are larger than the thickness of the binding agent layer.
A method for manufacturing a cutting element having a tactile wear indicator, the method comprising:
- providing a cutting element comprising a cutting edge and a skin-facing region;
- and
- forming a tactile wear indicator by providing a wearable outer layer in the skin-facing region, wherein the wearable outer layer defines a skin-contact surface and comprises a coating material having a plurality of dry lubricant particles dispersed within a binding agent,
- wherein the binding agent defines a layer and at least some of the dry lubricant particles have spans that are larger than the thickness of the binding agent layer.
1 more element
Dependencies are inferred from the claim text.