Exchange blade knife

Cutlery – Handles and blade connections

Reexamination Certificate

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Details

C030S329000, C030S151000, C030S339000

Reexamination Certificate

active

07900363

ABSTRACT:
An exchange blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

REFERENCES:
patent: 1035548 (1912-08-01), Dickenson
patent: 1436740 (1922-11-01), Wesson
patent: 1539141 (1925-05-01), Peterson
patent: 1829499 (1931-10-01), Boss
patent: 1914153 (1933-06-01), Ogden
patent: 2075553 (1937-03-01), Storfer
patent: 2104276 (1938-01-01), Schmidt
patent: 2191276 (1940-02-01), Gardner et al.
patent: 2478668 (1949-08-01), Shepard et al.
patent: 3377703 (1968-04-01), Longobardi
patent: 3781988 (1974-01-01), Jones
patent: 3996665 (1976-12-01), Malchow
patent: 4017969 (1977-04-01), Stonebraker
patent: 5272812 (1993-12-01), Doucette
patent: 5522828 (1996-06-01), Malilay
patent: 6105260 (2000-08-01), Parrish et al.
patent: 6718637 (2004-04-01), Ortner et al.
patent: 7055248 (2006-06-01), Cote
patent: 2005/0138816 (2005-06-01), Ping

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