A method of manufacturing a blade for scissors includes steps of: fusing an alloy of zinc and aluminum; filling said alloy into a first mould for manufacturing a metal cutter for scissors; applying high temperature and high pressure to the first mould to form a unitary metal cutter; fitting the metal cutter into a second mould for manufacturing a blade; and squirting viscous resin into the second mould to partially enclose the metal cutter, whereby the blade is sharp, lightweight, durable in use and fit for mass production.
6497012 - Buckle - Owned by Southern Impact Research Center, LLC (Knoxville, TN)
A buckle for receiving a strap member and for snap-fitting to a snap stud located on a helmet. The buckle includes a metal member having opposite ends, with an aperture located between the ends and a slit on either side of the aperture. Each of the slits including a plurality of rugous surfaces suitable for frictionally engaging a strap member positionable there through, and a plastic material substantially encasing the metal member except that at least a portion of the rugous surfaces are not encased by the plastic material and remain exposed, and a region surrounding the aperture of the metal member is not encased and the plastic material located adjacent the aperture defines a barrel configured for receiving and mating in a snap-fit relationship with a snap-stud fastener located on a helmet with which the buckle is to be used.
6481066 - Buckle - Owned by Southern Impact Research Center, LLC (Knoxville, TN)
A buckle for receiving a strap member and for snap-fitting to a snap stud located on a helmet. In a preferred embodiment, the buckle includes a metal member having opposite ends, with an aperture located between the ends and a slit on either side of the aperture. Each of the slits includes a plurality of rugous surfaces suitable for frictionally engaging a strap member positionable there through, and a plastic material substantially encasing the metal member except that at least a portion of the rugous surfaces and the aperture are not encased by the plastic material and remain exposed. A metal snap is affixed to the buckle by a fastener connectingly associated with the metal snap and the aperture, the metal snap being configured to matingly engage a snap stud.
A buckle includes a metal component having only a first opening and a second opening. The first opening is defined by a first internal perimeter including a first serrated edge. The second opening is defined by a second internal perimeter including a second serrated edge. The buckle also includes a rust resistant component substantially encasing the metal component. However, the rust resistant component does not encase the first serrated edge or the second serrated edge.
