Retractable blade knife
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 7, 1982
Grant Date -
N/A
app pub date -
Nov 3, 1980
filing date -
Nov 19, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Patent Longevity
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Abstract
The plastics handle 21 of a retractable blade knife 20, which also comprises a blade 22 and a blade-slider 23, is molded in one piece in a two-part molding tool 50 which can mold several such handles simultaneously. The handle has a series of wall portions, 39, 40, 27 and 43, 44, 28, 48 alternating with apertures 45, 46, 29, 49 and 41, 42, 30 along each side 25, 26 respectively, each wall portion on each side being directly opposite a respective aperture on the opposite side, so that molding tool portions 54, 55 of the molding tool can form the inside surfaces of the wall portions for guiding the blade. Wall portions 27 are formed by molding tool portions 56 with gaps 31 for passage of a manually operable part 32 of slider 23, and also act as detents for the slider.
First Claim
Other Claims data not available