Patent US3857519A successfully refreshed from Google Patents.
US3857519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hammer breaker for breaking-up bulky refuse material
Assignee: Lyndex Recycling Systems Ltd
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Filing: 1973-05-23
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Granted: 1974-12-31
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Expires: 1993-05-23
Abstract
Abstract A hammer breaker for breaking up bulky refuse material comprises a rotor having a number of breaking hammers attached to it about its periphery, the rotor being rotatably mounted in a housing having a lower open end and a part above the rotor which forms a supply hopper. The part above the rotor includes two opposite side walls which extend in the direction of the axis of rotation of the rotor and which diverge away from each other. One of these two side walls which is adjacent the part of the rotor where the hammers are moving downwardly as the rotor rotates has one or more counter-tools fixed to it and this side wall is hinged to the remainder of the housing to enable it to be moved to move the counter-tool or tools towards and away from the rotor axis and a mechanism which preferably includes a toggle linkage and a hydraulic ram is provided for moving the hinged side wall inwards and outwards. The hinge axis of the hinged side wall, which is parallel to the axis of rotation of the rotor is at substantially the same level as the axis of rotation of the rotor and the side wall extends upwards from the hinged axis to above the uppermost point on the path of rotation of the hammers as the rotor rotates. Movement of the side wall by its moving mechanism towards or away from the rotor ensures that if the bulky refuse material supplied to the housing bridges over the rotor, the bridge collapses and the material is fed again to the rotor.
Inventors
- 👤 A Schafer
- 👤 K Probst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:37
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/282; B02C18/00; B02C18/0084; B02C18/06; B02C18/16; B02C18/18; B02C2018/188
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
431 words
A hammer breaker for breaking up bulky refuse material, said breaker including a rotor, a plurality of breaking hammers attached to said rotor spaced apart about the radially outer periphery thereof, a rotor housing, means rotatably supporting said rotor in said housing with the axis of rotation thereof extending substantially horizontally, means for rotating said rotor in said housing so that said rotor rotates about its axis of rotation in a vertical plane and the radilly outer surfaces of said breaking hammers attached to said rotor pass along a vertically arranged outer rotational circle, said housing having means defining an open end thereof below said rotor and walls extending upwardly from said rotor housing to form a supply hopper for conducting the bulky refuse materials downwardly into contact with said breaking hammers on said rotor, said upwardly extending walls including a side wall extending transversely of the plane of the outer rotational circle of said breaking hammers and said side wall being positioned adjacent the periphery of said outer rotational circle along which said breaking hammers move downwardly when said rotor is rotated by said driving means, at least one counter-tool fixed to said side wall, means hingedly mounting said side wall at its lower end for pivotal movement about an axis parallel to said axis of rotation of said rotor and means for moving said side wall about said pivotal axis to move said side wall and said counter-tool toward and away from the outer rotational circle of said breaking hammers, said pivotal axis of said side wall being at substantially the same level as said axis of rotation of said rotor and said side wall extending upwardly from said pivotal axis to above the top-center of the outer rotational circle of said hammers as said rotor is rotated by said driving means, said means for moving said side wall including means for supporting said side wall in a rigid position with said counter-tool immediately adjacent to and radially outwardly of the outer rotational circle so that said countertool cooperates with but does not contact said breaking hammers in breaking up the bulky refuse material, said means for moving said side wall being arranged to displace said side wall from the rigid position with said counter-tool located adjacent the outer rotational circle outwardly away from the outer rotational circle while retaining said side wall positioned relative to the remaining said walls so that said supply hopper formed thereby can be increased in cross sectional flow area for relieving any bridging of the bulky refuse material moving downwardly toward said rotor.
Claim 2
Dependent Claim
431 words
A hammer breaker for breaking up bulky refuse material, said breaker including a rotor, a plurality of breaking hammers attached to said rotor spaced apart about the radially outer periphery thereof, a rotor housing, means rotatably supporting said rotor in said housing with the axis of rotation thereof extending substantially horizontally, means for rotating said rotor in said housing so that said rotor rotates about its axis of rotation in a vertical plane and the radilly outer surfaces of said breaking hammers attached to said rotor pass along a vertically arranged outer rotational circle, said housing having means defining an open end thereof below said rotor and walls extending upwardly from said rotor housing to form a supply hopper for conducting the bulky refuse materials downwardly into contact with said breaking hammers on said rotor, said upwardly extending walls including a side wall extending transversely of the plane of the outer rotational circle of said breaking hammers and said side wall being positioned adjacent the periphery of said outer rotational circle along which said breaking hammers move downwardly when said rotor is rotated by said driving means, at least one counter-tool fixed to said side wall, means hingedly mounting said side wall at its lower end for pivotal movement about an axis parallel to said axis of rotation of said rotor and means for moving said side wall about said pivotal axis to move said side wall and said counter-tool toward and away from the outer rotational circle of said breaking hammers, said pivotal axis of said side wall being at substantially the same level as said axis of rotation of said rotor and said side wall extending upwardly from said pivotal axis to above the top-center of the outer rotational circle of said hammers as said rotor is rotated by said driving means, said means for moving said side wall including means for supporting said side wall in a rigid position with said counter-tool immediately adjacent to and radially outwardly of the outer rotational circle so that said countertool cooperates with but does not contact said breaking hammers in breaking up the bulky refuse material, said means for moving said side wall being arranged to displace said side wall from the rigid position with said counter-tool located adjacent the outer rotational circle outwardly away from the outer rotational circle while retaining said side wall positioned relative to the remaining said walls so that said supply hopper formed thereby can be increased in cross sectional flow area for relieving any bridging of the bulky refuse material moving downwardly toward said rotor.
Claim 3
Dependent Claim
88 words
A hammer breaker, as set forth in claim 1, wherein in the rigid position of said side wall, said side wall in combination with one of said walls disposed oppositely from said side wall converge downwardly toward one another from a point above said outer rotational circle of said hammers for forming said hopper in combination with the other said walls, and the upper end of said side wall extending upwardly above the point at which said side wall converges with the oppositely positioned one of said walls.
Claim 4
Dependent Claim
173 words
A hammer breaker, as set forth in claim 1, wherein said walls include a wall positioned opposite said side wall which converges inwardly toward said side wall in the downward direction, and vertically spaced horizontally extending strips fixed to said side wall and said oppositely disposed wall and said said strips located above the horizontal plane containing the axis of rotation of said rotor, each of said strips in a plane parallel to the plane of the outer rotational circle of said hammers having a saw-tooth cross section with said saw-tooth cross section comprising a first surface extending from the wall to which it is fixed downwardly toward said rotor and a second Surface extending from the wall to which it is fixed outwardly from the wall transversely of said first surface, said strips being arranged to permit the bulky refuse material fed to said housing to move downwardly toward said rotor, but to prevent the material from moving upwardly away from said rotor under the action of said hammers on the material.
Claim 5
Dependent Claim
161 words
A hammer breaker, as set forth in claim 1, wherein a plate is firmly fixed to said hopper and extends outwardly from said side wall, said means for moving said side wall including said means for supporting said side wall includes a toggle linkage pivotally connected to said side wall and to said plate, said toggle linkage includes a central pivot located between the pivotal connections of said linkage to said side wall and plate and in the rigid support positions of said side wall said control pivot is located in a straight line extending between the pivotal connections of said toggle linkage to said side wall and said plate, and hydraulic ram means connected to said central pivot and extending transversely of said toggle linkage in the rigid support position of said side wall for moving said central pivot laterally of said toggle linkage as said side wall is moved outwardly away from the outer rotational circle of said hammers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |