Shear with interchangeable wear parts

Cutlery – Combined cutlery or combined with ancillary feature – With material-holder or disposal

Patent

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Details

24110173, B02C 106

Patent

active

059920238

ABSTRACT:
A demolition shear has a pair of pivotably movable elongated jaws each having a pivot portion and an elongated jaw portion extending therefrom. The lower jaw portion has a cutter side wall, a guide side wall and an outer end wall, and the cutter side wall has an upper working surface with a generally V-shaped configuration, and a recess providing a blade seating shoulder extending parallel to the upper surface. The end shoulder at the proximal end intersects at an obtuse angle with the blade seating shoulder, and defines a reference plane. Seated on the shoulder are abutting; elongated rhimboidal lower cutter blades with end faces extending parallel to the reference plane. The outer end wall has an inner surface portion has a blade seating shoulder on its inner surface on which is seated a cross cutter blade. The guide side wall has a recess adjacent the outer end wall which provides a blade seating shoulder on which is seated a guide blade. The distal end surfaces of the guide and distal cutter blades extend parallel to the reference plane and bear firmly against the cross cutter blade which also lies in parallel plane. The upper jaw has an invention V-shape pivot portion and a jaw portion extending therefrom with a cutter side surface adjacent the cutter side surface of the lower jaw and a guide side surface. Its cutter side surface has a recess providing a blade seating shoulder on which is seated a pair of abutting elongated rhomboidal upper cutter blades.

REFERENCES:
patent: 4519135 (1985-05-01), LaBounty
patent: 4669187 (1987-06-01), Pardoe
patent: 4776093 (1988-10-01), Gross
patent: 5060378 (1991-10-01), LaBounty et al.
patent: 5146683 (1992-09-01), Morikawa
patent: 5359775 (1994-11-01), Morikawa et al.
patent: 5671892 (1997-09-01), Morikawa et al.
patent: 5860214 (1999-01-01), Morikawa et al.
patent: 5894666 (1999-04-01), Hrusch
Sketch of blades in Teledyne Design (Exhibit 13).
Maintenance Manual LaBounty MDS Shear (Exhibit 14) Skidsteer Loader).
Photographs LaBounty MSD Shear (Exhibit 15).
Literature Verachtert Shears (Exhibit 16).
Literature Verachtert Shears (Exhibit 17).
Literature Verachtert Shears (Exhibit 18).
Photographs Verachtert Shears (Exhibit 19).
Literature Allied Gator Shear (Exhibit 20).
Photographs Teledyne Shear (Exhibit 25).
Photographs LaBounty MSD-30 (Exhibit 26).
Brochure, LaBounty Universal Processor Shear Jaws Attachment.
Photographs and literature--Teledyne Shear.
Literature Veratech Shear Attachments.
Literature, Iron Ax Shears.
Photographs, Komatsu (Oyodo) Shear.
Product Drawing ORT Oberlander Shear.

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