US 2011/0031338 A1 · Blade Set For Jaws Used In Rail Breaking Demolition Equipment

Abstract

A blade set associated with jaws for demolition equipment used to break raiload rails includes a bottom blade associated with a bottom jaw and a top blade associated with a top jaw, wherein the bottom jaw and the top jaw are rotatable relative to one another. The bottom blade includes two spaced-apart support rails separated by a cavity, while the top blade includes a single raised knife rail positioned and central to the cavity and rotatable toward the cavity. The raised support rails associated with the bottom blade and the raised knife rail associated with the top blade have spaced recesses across their width which enhance the ability of the jaw sets to grab and retain work pieces. Additionally, the top blade has an outwardly tapering shape, such that upon completing a cutting operation a remaining portion of the severed railroad rail may be held and clamped by the jaw set for transportation or further processing. The top blade additionally may be marked with indicia, such as red paint, such that the machine operator may properly orient the top blade during a cutting operation to maximize safety.

Claims29

Dependent claims

A blade set associated with jaws for demolition equipment, wherein at least one jaw rotates relative to the other jaw about a rotational axis within a rotational plane, the blade set comprising:

a) a bottom blade adapted to be secured to the bottom jaw, wherein the bottom blade has:
1) a first radial axis therethrough and within the rotational plane;
2) two opposing raised support rails, each having:
i) planar surface segments generally perpendicular to the rotational plane and extending parallel to the first radial axis;
ii) recesses between the planar surface segments, wherein the recesses extend across the width of the support rail and the recesses of one support rail are aligned with corresponding recesses of the other opposing support rail;
3) a cavity extending between and adjacent to the support rails;
b) a top blade adapted to be secured to the top jaw, wherein the top blade has:
1) a second radial axis therethrough and within the rotational plane;
2) a raised knife rail having:
i) planar surface segments generally perpendicular to the rotational plane and extending parallel to the second radial axis;
ii) recesses between the planar surface segments, wherein the recesses extend across the width of the knife rail;
iii) wherein the width of the knife rail at the planar surface segments is less than the width at the opening of the cavity;
and
c) wherein the top blade and the bottom blade are symmetric about the rotational plane.

11 more elements

A jaw set for demolition equipment comprised of:

a) a bottom jaw pivotally connected to a top jaw;
b) a bottom blade adapted to be secured to the bottom jaw, wherein the bottom blade has:
1) a first radial axis therethrough and within the rotational plane;
2) two opposing raised support rails, each having:
i) planar surface segments generally perpendicular to the rotational plane and extending parallel to the first radial axis;
ii) recesses between the planar surface segments, wherein the recesses extend across the width of the support rail and the recesses of one support rail are aligned with corresponding recesses of the other opposing support rail;
3) a cavity extending between and adjacent to the support rails;
c) a top blade adapted to be secured to the top jaw, wherein the top blade has:
1) a second radial axis therethrough and within the rotational plane;
2) a raised knife rail having:
i) planar surface segments generally perpendicular to the rotational plane and extending parallel to the second radial axis;
ii) recesses between the planar surface segments, wherein the recesses extend across the width of the knife rail;
iii) wherein the width of the knife rail at the planar surface segments is less than the width at the opening of the cavity;
and
d) wherein the top blade and the bottom blade are symmetric about the rotational plane.

12 more elements

Dependencies are inferred from the claim text.

Blade Set For Jaws Used In Rail Breaking Demolition Equipment

Life of this patent

Blade Set For Jaws Used In Rail Breaking Demolition Equipment

Life of this patent

Abstract

Claims29