Cutlery – Pipe and rod cutters – Rotary
Patent
1988-01-19
1989-07-11
Schmidt, Frederick R.
Cutlery
Pipe and rod cutters
Rotary
30 92, B23D 2106
Patent
active
048458503
ABSTRACT:
A pipe cutter comprises a rotary cutting device having a cutter, two semi-cylindrical shells connected by a hinge, and a thrust bar connected between the handles for controlling the gripping force of the shells. The shells have jaw inserts with slots and ridges on their outer periphery to alter their resilient behavior during use.
REFERENCES:
patent: 1217468 (1917-02-01), Lincoln
patent: 1596169 (1926-08-01), Follmer
patent: 2112192 (1938-03-01), Geddes
patent: 2284449 (1942-05-01), Rodess
patent: 2317944 (1943-04-01), Schaefer
patent: 2398206 (1946-04-01), Clemens
patent: 2398209 (1946-04-01), Clemens
patent: 2543922 (1951-03-01), Mead
patent: 2552618 (1951-05-01), Boatright
patent: 2672778 (1954-03-01), Jones
patent: 2682239 (1954-06-01), Klema et al.
Rachuba Maurina
Rothenberger Werkzeuge-Maschinen GmbH
Schmidt Frederick R.
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