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US 4,048,721 AGranted
Scissors
AssigneeRussell (Shears) Limited
InventorBrennand Gunson
Life of this patent
Estimating the term…
Abstract
A pair of scissors with moulded plastics blades having moulded-in metal cutting elements, the cutting elements being contained mainly within the blades so that said blades are substantially of sandwich construction and the cutting elements being provided with holes or slots through which the moulded material extends.
Claims5
A pair of scissors having a pair of pivotally connected blades;
- each blade being made of a moulded plastics material with an integrally moulded-in metal cutting element so that only the marginal edge portions of said cutting elements are visible, the marginal edge portion of each cutting element being angled out of the plane of the remainder of such element and the depth of the angled portion decreasing from the extreme end of the blade to a point at which it runs out in the region of the pivot connecting the blades, the angled portion of each cutting element being an angle of up to 90.degree. to the plane containing the remainder of the cutting element;
- the metal cutting elements each being provided with at least one aperture for the flow of moulding material therethrough;
- the moulded material having flowed through said apertures of the cutting elements during the molding step to unite the moulded parts of the blades on opposite sides of the cutting elements by bridges of molded plastics material integral therewith and to thereby form blades of substantially sandwich construction.
Dependencies are inferred from the claim text.