Patent ID: 8215915

Claim:
A blade closing key system comprising: a first key piece having a base body with a bendable first straight finger protruding from a first side surface thereof, the first finger having a first end, the first key piece further including an alignment plate extending from the first side surface, wherein the alignment plate is spaced from the first finger; and a second key piece having a base body with a bendable second straight finger protruding from a first side surface thereof, the second finger having a second end, the second key piece further including a key slot sized to receive the alignment plate, the key slot having an open first longitudinal end, the first and second key pieces being positioned such that at least a portion of the alignment plate is received in the open first longitudinal end of the key slot and such that first and second fingers are opposed in bending with the first and second ends engaging each other, whereby the engagement between the alignment plate and the key slot keeps the first and second key pieces aligned and the first and second fingers engaged.