§
Luxuse
Patent Intelligence
Sign In
Patent US3703970A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3703970A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for treating waste material

Assignee: Benson Industries Ltd
•
Filing: 1971-02-23
•
Granted: 1972-11-28
•
Expires: 1991-02-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An apparatus for treating garbage and trash so that it may be reduced to compact form in bags, blocks or otherwise. The apparatus is typically placed at the bottom of a garbage chute and the apparatus breaks up the garbage into small pieces by means of a rotatable low speed high-torque motor-driven breaking drum running in cooperation with a matching anvil. The breaking drum has several rows of teeth which mesh with teeth-like anvil elements of the anvil, and the teeth on the breaking drum are so gapped as to provide a nip to trap and crush oversize bottles and the like. There are two torque-overload features. One torqueoverload feature is an electrical overload device which can stop the rotation of the breaking drum if there is a jam, and carry out the cycle of reversing the drum, moving it forward again, and repeating the aforesaid a predetermined number of times and shutting off the machine after any predetermined number of cycles if the jam has not then been cleared. A second torque-overload feature involves moveable mounting of the anvil such that it can move away from operative position in the event of a jam. The anvil is normally held in operative position by hydraulic means and in the event of an overload the hydraulic means permits the anvil to move away from operative position and restores the anvil to its initial position when the jam is cleared. The apparatus also provides a check means in the form of a series of parallel check plates rigidly mounted on the frame of the apparatus. Each check plate is perforated so that it surrounds the breaking drum. Part of each check plate facing the breaking drum has an abrasive surface. The check means in combination with the other elements of the apparatus carry out the functions of clearing the breaking drum and its associated teeth of material adhering thereto which could cause clogging of the mechanism, which clearing of the drum includes scraping the breaking drum and grinding off tightly adhering material particularly material which may have strong fibers; the check means also prevents processed material from returning ''''upstream'''' and directs the flow of processed material into the bin or container so that the breaking drum exerts a ''''pumping'''' action on the processed material, so that the processed material may be tightly compacted in the bin or other container.

Inventors

  • 👤 Russell Richard Benson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:22
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/14; B02C18/145; B02C18/0084; B02C18/16; B02C2018/164; B02C18/18; B02C2018/188

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 175 words
Garbage treating apparatus comprising a hopper having a discharge opening through its bottom, a breaking drum means rotatably mounted within said opening and comprising a central cylindrical member with a plurality of teeth fixed thereto and extending outwardly therefrom, the opposite ends of said drum means being disposed closely adjacent the opposite ends of said opening; anvil means disposed at and defining one side of said opening, said anvil means including a plurality of anvil elements extending between adjacent teeth of said breaking drum means, check means rigidly supported from the side of said opening opposite said first-mentioned side and including check plates disposed between the respective teeth of said breaking drum means and encircling said cylindrical member, and power means for rotating said breaking drum means at a low peripheral speed in a direction such that its said teeth rotate downwardly between said anvil elements to force the treated garbage downwardly through said opening, while said check plates occupying the spaces between adjoining teeth prevent the upward return of garbage into the said hopper.
Claim 2
Dependent Claim 175 words
Garbage treating apparatus comprising a hopper having a discharge opening through its bottom, a breaking drum means rotatably mounted within said opening and comprising a central cylindrical member with a plurality of teeth fixed thereto and extending outwardly therefrom, the opposite ends of said drum means being disposed closely adjacent the opposite ends of said opening; anvil means disposed at and defining one side of said opening, said anvil means including a plurality of anvil elements extending between adjacent teeth of said breaking drum means, check means rigidly supported from the side of said opening opposite said first-mentioned side and including check plates disposed between the respective teeth of said breaking drum means and encircling said cylindrical member, and power means for rotating said breaking drum means at a low peripheral speed in a direction such that its said teeth rotate downwardly between said anvil elements to force the treated garbage downwardly through said opening, while said check plates occupying the spaces between adjoining teeth prevent the upward return of garbage into the said hopper.
Claim 3
Dependent Claim 64 words
Garbage treating apparatus as defined in claim 1, in which said check plates are respectively formed with circular openings rotatably receiving said breaking drum means, including radially inwardly directed abrasive means carried by the respective check plates at the inner peripheries of their said openings in close proximity to the outer periphery of said central cylindrical member for the removal of foreign material therefrom.
Claim 4
Dependent Claim 51 words
Garbage treating apparatus as defined in claim 1, further including abrasive means carried on the opposite axial ends of said breaking drum means and directed toward thoSe portions of the said hopper defining the opposite ends of said opening, whereby to maintain said ends of the opening free of foreign material.
Claim 5
Dependent Claim 27 words
Garbage treating apparatus as defined in claim 3, including abrasive means carried by the respective check plates closely adjacent to the outer periphery of said cylindrical member.
Claim 6
Dependent Claim 34 words
Garbage treating apparatus as defined in claim 1, wherein said breaking drum means projects downwardly through said opening for reception in a bin disposed therebeneath to distribute the treated garbage horizontally within said bin.
Claim 7
Dependent Claim 95 words
Garbage treating apparatus as defined in claim 1, comprising an enclosed elongated bin beneath said hopper and in communication with the opening thereof to receive treated garbage therefrom, said opening and breaking drum means being adjacent one end of the said elongated bin and remote from the opposite end thereof, the said rotating drum means having a lower peripheral portion projecting downwardly through said opening into the bin and rotating in a direction toward the said opposite remote end of the bin to urge the treated garbage within the bin toward said opposite remote end.
Claim 8
Dependent Claim 147 words
Garbage treating apparatus comprising a rotatable breaking drum, a cooperating anvil, the rotatable breaking drum being provided with a series of pairs of teeth mounted at spaced intervals along the length of the breaking drum, the anvil being of general crescent shape, pivotally mounted in the region of its upper end and depending downwardly, the anvil extending substantially perpendicularly to the downwardly depending direction so as to extend inside the periphery of rotation of said teeth, motive power means for driving said breaking drum at low speed, check means provided in close proximity to said breaking drum to clear material adhering to said breaking drum, to prevent the processed material from flowing back upwardly past said rotatable breaking drum, said check means including a scraper block having a concave portion of approximately the same circumference as said drum and provided with a grinding surface facing said drum.
Claim 9
Dependent Claim 147 words
Garbage treating apparatus comprising a rotatable breaking drum, a cooperating anvil, the rotatable breaking drum being provided with a series of pairs of teeth mounted at spaced intervals along the length of the breaking drum, the anvil being of general crescent shape, pivotally mounted in the region of its upper end and depending downwardly, the anvil extending substantially perpendicularly to the downwardly depending direction so as to extend inside the periphery of rotation of said teeth, motive power means for driving said breaking drum at low speed, check means provided in close proximity to said breaking drum to clear material adhering to said breaking drum, to prevent the processed material from flowing back upwardly past said rotatable breaking drum, said check means including a scraper block having a concave portion of approximately the same circumference as said drum and provided with a grinding surface facing said drum.
Claim 10
Dependent Claim 27 words
Garbage treating apparatus as defined in claim 7, in which said power means rotates the said breaking drum at a speed of the order of 10 r.p.m.
Claim 11
Dependent Claim 29 words
Garbage treating apparatus as defined in claim 7, in which said power means rotates the breaking drum at a peripheral speed of the order of 20 to 30 ft/min.

References Cited (Backward Citations)

US2899140A Cited
US2678775A Cited
US2905396A Cited
US3096035A Cited
US3099406A Cited
US3151814A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-11-28 1976-05-29 1976-11-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-11-28 1980-05-29 1980-11-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-11-28 1984-05-29 1984-11-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag