Keyboard assembly
OwnerArthur S. Willmottinventor
Life of this patent
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Abstract
A keyboard assembly comprising a plurality of actuating keys, and a sheet of flexible thin plastic film, the keys being bonded to the film. The keys have upper and lower portions, said lower portions being sandwiched between said upper portions and film and bonded to each.
Claims2
A method of making a keyboard assembly in which a sheet of thin flexible plastic film is bonded to a series of key portions arranged in a predetermined order, comprising the steps of molding a first series of key portions in a first mold, placing said first series of key portions into a second mold, introducing said film into said second mold, and then molding a second series of key portions underlying said first series of key portions to bond said film to said first key portions in said mold, said first series of key portions being provided with first runners extending between the key portions inwardly of said first series of key portions, and said second series of key portions being provided with runners outwardly of said second series of key portions, breaking away said first runners from said first series of key portions without breaking the bond between said film and said key portions.
Dependencies are inferred from the claim text.