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US3878995A Expired / Lapsed US ⏱️ 0.0 years remaining

Refuse shredder and classifier

Assignee: LANGHORN CONSTRUCTION Co
•
Filing: 1973-09-04
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Granted: 1975-04-22
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Expires: 1993-09-04
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Abstract

Abstract An improved material shredder and classifier apparatus having a pair of rotatable shredder cylinders for shredding and horizontally projecting material in the direction of capture bins positioned away from the cylinders. Variable height baffles are positioned in the path of the material discharged from the shredder cylinders to deflect the material into the appropriate bin.

Inventors

  • 👤 James C Nash

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:13
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/04; B02C18/00; B02C18/0084; Y; Y10; Y10S; Y10S209/00; Y10S209/93

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 153 words
Apparatus for shredding material including material particles of differing shapes, sizes and densities and for classifying shredded particles into particle groups of differing densities and shapes comprising: a housing defining a shredding chamber, a pair of vertically spaced shredder cylinders mounted for discharging shredded particles in a generally horizontal direction into the chamber, at least two bin means for receiving shredded particles, the bin means being spaced in the direction of discharge of the shredded particles from the cylinders, baffle means disposed between the bin means and projecting upwardly so as to interrupt the ballistic flight of particles with a greater density for guiding such greater density particles into means positioned proximate the cylinders, and means permitting movement of the baffle means in a generally vertical direction so as to allow a variation in the density of particles collected in the proximate bin means without changing the relative position of the bin means.
Claim 2
Dependent Claim 153 words
Apparatus for shredding material including material particles of differing shapes, sizes and densities and for classifying shredded particles into particle groups of differing densities and shapes comprising: a housing defining a shredding chamber, a pair of vertically spaced shredder cylinders mounted for discharging shredded particles in a generally horizontal direction into the chamber, at least two bin means for receiving shredded particles, the bin means being spaced in the direction of discharge of the shredded particles from the cylinders, baffle means disposed between the bin means and projecting upwardly so as to interrupt the ballistic flight of particles with a greater density for guiding such greater density particles into means positioned proximate the cylinders, and means permitting movement of the baffle means in a generally vertical direction so as to allow a variation in the density of particles collected in the proximate bin means without changing the relative position of the bin means.
Claim 3
Dependent Claim 153 words
Apparatus for shredding material including material particles of differing shapes, sizes and densities and for classifying shredded particles into particle groups of differing densities and shapes comprising: a housing defining a shredding chamber, a pair of vertically spaced shredder cylinders mounted for discharging shredded particles in a generally horizontal direction into the chamber, at least two bin means for receiving shredded particles, the bin means being spaced in the direction of discharge of the shredded particles from the cylinders, baffle means disposed between the bin means and projecting upwardly so as to interrupt the ballistic flight of particles with a greater density for guiding such greater density particles into means positioned proximate the cylinders, and means permitting movement of the baffle means in a generally vertical direction so as to allow a variation in the density of particles collected in the proximate bin means without changing the relative position of the bin means.
Claim 4
Dependent Claim 153 words
Apparatus for shredding material including material particles of differing shapes, sizes and densities and for classifying shredded particles into particle groups of differing densities and shapes comprising: a housing defining a shredding chamber, a pair of vertically spaced shredder cylinders mounted for discharging shredded particles in a generally horizontal direction into the chamber, at least two bin means for receiving shredded particles, the bin means being spaced in the direction of discharge of the shredded particles from the cylinders, baffle means disposed between the bin means and projecting upwardly so as to interrupt the ballistic flight of particles with a greater density for guiding such greater density particles into means positioned proximate the cylinders, and means permitting movement of the baffle means in a generally vertical direction so as to allow a variation in the density of particles collected in the proximate bin means without changing the relative position of the bin means.
Claim 5
Dependent Claim 58 words
Apparatus according to claim 1 including a pair of shredding cylinders disposed beneath the proximate bin means for receiving shredded particles collected therein and for further shredding and disintegrating such particles, and means for discharging the particles collected in the closer bin means after their further disintegration, and means for discharging particles collected in the second bin means.
Claim 6
Dependent Claim 178 words
Apparatus for shredding particles of varying sizes shapes and densities and for classifying shredded particles according to their densities and shapes into at least two groups the apparatus comprising a housing defining a shredding chamber, a pair of rotatable shredder cylinders mounted for shredding the particles and for generally horizontally projecting the shredded particles through the chamber, each cylinder having a plurality of radially extending flails which are circumferentially and axially spaced over the cylinder, each flail being defined by no more than three flail links, means for pivotally securing the links to each other, means for pivotally securing each link to each link to the corresponding cylinder, first and second bin means spaced in the direction of flight of the shredded particles for receiving the rejected particles, means separating the bin means for each other so as to collect shredded particles of a greater density in one of the bin means and shredded particles of a lighter density in the other one of the bin means, and means for discharging the shredded particles from the bin means.
Claim 7
Dependent Claim 178 words
Apparatus for shredding particles of varying sizes shapes and densities and for classifying shredded particles according to their densities and shapes into at least two groups the apparatus comprising a housing defining a shredding chamber, a pair of rotatable shredder cylinders mounted for shredding the particles and for generally horizontally projecting the shredded particles through the chamber, each cylinder having a plurality of radially extending flails which are circumferentially and axially spaced over the cylinder, each flail being defined by no more than three flail links, means for pivotally securing the links to each other, means for pivotally securing each link to each link to the corresponding cylinder, first and second bin means spaced in the direction of flight of the shredded particles for receiving the rejected particles, means separating the bin means for each other so as to collect shredded particles of a greater density in one of the bin means and shredded particles of a lighter density in the other one of the bin means, and means for discharging the shredded particles from the bin means.
Claim 8
Dependent Claim 63 words
Apparatus according to claim 3 including a second set of rotating shredder cylinders and means for guiding the shredded particles from one of the bin means to the second set of cylinders, each second set of cylinders including a plurality of flails constructed and mounted in the same manner in which the flails of the first set of cylinders are constructed and mounted.
Claim 9
Dependent Claim 53 words
Apparatus according to claim 4 wherein the first set of cylinders are vertically spaced a sufficient distance to prevent an overlapping of the flails of the respective cylinders, and wherein the cylinders of the second set are horizontally spaced apart a distance so that the flails of the second set of cylinders overlap.
Claim 10
Dependent Claim 53 words
Apparatus according to claim 4 wherEin each of the flails of the first and second cylinder sets include an outermost link defined by a pair of independent segments, and including means for attaching said segments to a remainder of the flails for independent pivotal movement of the segments with respect to the remainder.
Claim 11
Dependent Claim 40 words
Apparatus according to claim 3 wherein the separating means includes means for adjusting the height of the separating means relative to the first set of shredder cylinders to correspondingly change the density of shredded particles collected in the bin means.
Claim 12
Dependent Claim 299 words
Apparatus for shredding particles of various sizes, shapes and densities and for classifying and collecting the shredded particles according to their relative densities and shapes comprising a housing defining a shredding chamber, a first set of rotatable shredder cylinders mounted for shredding the particles, the shredder cylinders being positioned for horizontally projecting the shredded particles through the chamber, at least two bin means spaced in the direction of flight of the shredded particles in the chamber for receiving such particles, baffle means disposed between the bin means including means for adjusting the effective height of the baffle means with respect to the first set of shredder cylinders so that shredded particles are classified and received in the respective bin means according to the density and the relative shape of the shredded particles and so that the density and the shape of the particles collected in the first bin means can be varied by varying the effective height of the baffle means, a second set of shredder cylinders mounted beneath at least one of the bin means for receiving shredded particles therefrom and for further disintegrating such particles, each of the shredder cylinders in the first and second sets including a plurality of circumferentially and axially spaced apart flails, each flail being defined by no more than three links, means pivotally interconnecting the links, means pivotally connecting each flail to the respective cylinder, and outermost link of each flail being defined by a pair of spaced apart independent link segments pivotally attached to a remainder of the flail for independent pivotal movement of the segments of each pair of segments, means spacing the cylinders of the first sets so that the flails do not overlap, and means spacing the cylinders of the second set so that the flails do overlap.
Claim 13
Dependent Claim 299 words
Apparatus for shredding particles of various sizes, shapes and densities and for classifying and collecting the shredded particles according to their relative densities and shapes comprising a housing defining a shredding chamber, a first set of rotatable shredder cylinders mounted for shredding the particles, the shredder cylinders being positioned for horizontally projecting the shredded particles through the chamber, at least two bin means spaced in the direction of flight of the shredded particles in the chamber for receiving such particles, baffle means disposed between the bin means including means for adjusting the effective height of the baffle means with respect to the first set of shredder cylinders so that shredded particles are classified and received in the respective bin means according to the density and the relative shape of the shredded particles and so that the density and the shape of the particles collected in the first bin means can be varied by varying the effective height of the baffle means, a second set of shredder cylinders mounted beneath at least one of the bin means for receiving shredded particles therefrom and for further disintegrating such particles, each of the shredder cylinders in the first and second sets including a plurality of circumferentially and axially spaced apart flails, each flail being defined by no more than three links, means pivotally interconnecting the links, means pivotally connecting each flail to the respective cylinder, and outermost link of each flail being defined by a pair of spaced apart independent link segments pivotally attached to a remainder of the flail for independent pivotal movement of the segments of each pair of segments, means spacing the cylinders of the first sets so that the flails do not overlap, and means spacing the cylinders of the second set so that the flails do overlap.

References Cited (Backward Citations)

US2128848A Cited
US2211096A Cited
US2952493A Cited
US3327955A Cited
US3738483A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-04-21 1978-10-21 1979-04-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-04-21 1982-10-21 1983-04-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-04-21 1986-10-21 1987-04-22 $7700.00 Window Closed / Lapsed

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