Cutlery – Carton openers
Reexamination Certificate
2006-04-11
2006-04-11
Payer, Hwei-Siu (Department: 3724)
Cutlery
Carton openers
C030S286000
Reexamination Certificate
active
07024772
ABSTRACT:
A case knife (1, 101), generally consists of a pair of substantially symmetrical handle shells (13, 112). A single edge razor blade B is removably supported in one end of the handle formed by these handle shells. Each handle shell includes two moving parts—a guard (10, 110) and a thumb or finger operable button (5, 105). Each such guard, when paired with a substantially identical guard of the other handle half shell, flanks the otherwise protruding sharp edge of the razor blade. Each guard can move independently to expose a protruding corner of the razor blade. The operable button is mounted on an axle or lug (14, 103) that passes from the inside of a handle shell, through to its outside surface. This axle is in turn fixed to a cam follower (20, 120) mounted on the inside of each shell.
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Busby Randy R.
Carter James S.
Shaver Billy J.
O'Connor Gregory W.
Payer Hwei-Siu
Specmaster Inc.
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