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US 12,752,352 B2Granted
Shear jaw apex blades
OwnerMichael Richard Ramuninventor
Life of this patent
Estimating the term…
Abstract
A jaw of a jaw set used for demolition, recycling, or material processing equipment with indexable and interchangeable cutting blades that abut with one another to form an apex angle. A jaw set with such a jaw is also included.
Claims11
A jaw of a jaw set for demolition, recycling, or material processing equipment, wherein the jaw is adapted for relative rotation with another jaw about a pivot and is comprised of a jaw body having:
- a) a tip spaced from the pivot for piercing material;
- wherein a shear region is defined between the pivot and the tip and has:
- b) a front segment within the shear region proximate to the pivot;
- c) a front blade mounted in the front segment having a front blade longitudinal axis;
- d) a rear segment within the shear region proximate to the tip;
- e) a rear blade mounted in the rear segment having a rear blade longitudinal axis;
- f) wherein the front blade longitudinal axis and the rear blade longitudinal axis intersect to form an apex angle of between 100 degrees and 130 degrees;
- g) wherein each blade has:
- 1) a first end, where the first end is made up of an end wall that is perpendicular to the blade longitudinal axis;
- 2) a second end opposite to the first end, wherein the second end is made up of two surfaces, wherein a first surface of the two surfaces forms a first acute angle with the blade longitudinal axis and a second surface of the two surfaces forms a second acute angle with the blade longitudinal axis and the first acute angle and the second acute angle are equal, wherein the two surfaces form an obtuse angle with each other, and wherein the two surfaces intersect with one another along the blade longitudinal axis to form an arrow shape;
- and
- 3) cutting edges between the first end and second end;
- h) wherein the front blade and the rear blade abut with one another at surfaces on their second ends;
- and
- i) wherein the obtuse angle formed by the two surfaces of the second end of the blade is identical to the apex angle formed by the front blade longitudinal axis and the rear blade longitudinal axis.
12 more elements
A jaw set-used for demolition, recycling, or material processing equipment, wherein the jaw set has:
- a) a first jaw which is movable about a pivot pin in the jaw set;
- b) a second jaw opposing the first jaw to allow relative rotation between the first jaw and second jaw;
- c) wherein the first jaw is comprised of a jaw body having:
- 1) a tip spaced from the pivot for piercing material;
- wherein a shear region is defined between the pivot and the tip and has:
- 2) a front segment within the shear region proximate to the pivot;
- 3) a front blade mounted in the front segment having a front blade longitudinal axis;
- 4) rear segment within the shear region proximate to the tip;
- 5) a rear blade mounted in the rear segment having a rear blade longitudinal axis;
- 6) wherein the front blade longitudinal axis and the rear blade longitudinal axis intersect to form an apex angle of between 100 degrees and 130 degrees;
- 7) wherein each blade has:
- i) a first end, where the first end is made up of an end wall that is perpendicular to the blade longitudinal axis;
- ii) a second end opposite to the first end, wherein the second end is made up of two surfaces, wherein a first surface of the two surfaces forms a first acute angle with the blade longitudinal axis and a second surface of the two surfaces forms a second acute angle with the blade longitudinal axis and the first acute angle and the second acute angle are equal, wherein the two surfaces form an obtuse angle with each other, and wherein the two surfaces intersect with one another along the blade longitudinal axis to form an arrow shape;
- and
- iii) cutting edges between the first end and second end;
- 8) wherein the front blade and the rear blade abut with one another at surfaces on their second ends;
- and
- 9) wherein the obtuse angle formed by the two surfaces of the second end of the blade is identical to the apex angle formed by the front blade longitudinal axis and the rear blade longitudinal axis;
- d) wherein the second jaw has blades with cutting edges to act in opposition to the shear region of the first jaw.
16 more elements
Dependencies are inferred from the claim text.