Replaceable blade knife
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United States of America Patent
Stats
-
Dec 23, 1980
Grant Date -
N/A
app pub date -
Sep 6, 1978
filing date -
Sep 8, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A retractable blade knife 10 comprises an elongate handle 11 which is in two halves 14, 15 clamping therebetween a replaceable blade 12 which can be extended and retracted by means of a cursor 18 and which has 'break-lines' 32 for breaking off successive end portions 33. To clamp the blade 12 firmly in use, a screw 27 at the rear end of the handle can be turned to produce relative longitudinal sliding between the two handle halves 14, 15, whereupon an inclined 'wedging' surface 17 at the front end of the handle 11 clamps the two halves 14 and 15 together with the blade 12 between them.
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