Cutlery – Cutting tools – Plural cooperating blades
Patent
1994-01-12
1994-10-18
Seidel, Richard K.
Cutlery
Cutting tools
Plural cooperating blades
30349, B26B 1300
Patent
active
053555856
ABSTRACT:
The scissors are provided with replaceable thin insert blades. The blade insert carriers of the scissors are recessed to receive the blade inserts fixed in place by a screw. The edge-to-edge force at the cutting point is controlled by the bend and the twist of the blade insert carriers. The fixation of the blade inserts by the screw in the front half of the blade insert carriers and their twist in the back section, leaves the cutting edge of the blade inserts unsupported near the pivot point of the scissors. Torsion of the blade inserts allows for easier control of the edge-to-edge force near the pivot without a penalty of the high edge-to-edge compliance towards the tips. Use of replaceable blade inserts eliminates the need for resharpening of the cutting edge and allows for use of the special purpose blade inserts with the same basic scissors.
REFERENCES:
patent: 1609638 (1926-12-01), Zeidler
patent: 1628856 (1927-05-01), Patrick
patent: 1748701 (1930-02-01), Boyd
patent: 2284664 (1942-06-01), Kissling
patent: 2353294 (1944-07-01), Ciarlone
patent: 2660788 (1953-12-01), Cobb
patent: 2666258 (1954-01-01), Vogel
patent: 2819523 (1958-01-01), Stoeveken
patent: 3052026 (1962-09-01), Muller
patent: 5014433 (1991-05-01), Tepic
AO-Forschungsinstitut Davos
Farley Walter C.
Payer Hwei-Siu
Seidel Richard K.
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