Cutlery – Cutting tools – Plural cooperating blades
Patent
1996-06-17
1998-03-03
Watts, Douglas D.
Cutlery
Cutting tools
Plural cooperating blades
30241, 227 10, B26D 1500
Patent
active
057221707
ABSTRACT:
An explosive cartridge actuated cable cutter device is presented which has a housing with a longitudinal axis and an axially extending bore therein where the bore has a circumferential step extending radially into the bore defining a reaction shoulder and a frame carried by the housing which extends axially at the cutting end of the device. A reaction blade is carried by the frame and extends laterally across the longitudinal axis and acts in conjunction with a cutting blade to shear power transmission line or underground cable. The shearing action is achieved through the use of a piston member which has a piston head and piston rod and is slideably mounted within the bore. The piston head has an impact shoulder which has a diameter greater than the piston rod and an attenuator sleeve is mounted in slideable relationship with the piston rod and is adapted within the housing to permit compressive engagement of the attenuator sleeve with both the impact shoulder and the reaction shoulder upon a predetermined axial displacement of the piston member. The use of the attenuator sleeve permits a shorter cutting stroke and prolongs the life of the cutter and reaction blades.
REFERENCES:
patent: 2766525 (1956-10-01), Hoffman
patent: 4349141 (1982-09-01), Ollivier et al.
Gotha Frederick
Watts Douglas D.
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