Patent US5074992A successfully refreshed from Google Patents.
US5074992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woodwaste processing system with contaminate separation
Assignee: Fuel Harvesters Equipment Inc
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Filing: 1989-09-29
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Granted: 1991-12-24
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Expires: 2009-09-29
Abstract
Abstract A system for processing wastewood. The system may be mounted on a towable chassis. The wastewood is received at one end of the system and metal contaminants are removed from the wastewood. The wastewood is then separated according to size wherein a first size of wastewood is further processed by the system and a second size is removed from the system for subsequent re-processing. Unwanted paper and plastic contaminants are removed from the wastewood, and the wastewood of the first size is subjected to a further separating step wherein it is again separated according to size into usable end products.
Inventors
- 👤 L. Powell Clinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:45
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; B03B9/065; B07; B07B; B07B9/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/58; Y02W30/62; Y10; Y10S; Y10S209/00; Y10S209/935
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
144 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper material intermixed therewith, comprising: input means for receiving the wastewood; means for removing metal from the wastewood; separation means for receiving the wastewood from said metal removing means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood and said plastic or paper material is removed from the apparatus; blower means for lifting plastic or paper material from the wastewood and vacuum means for capturing the plastic or paper material and for transferring it to a collection means; means for transferring said first size of wastewood away from said separation means; and means for receiving said first size of wastewood from said transferring means and for further separating said first size of wastewood according to size.
Claim 2
Independent Claim
144 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper material intermixed therewith, comprising: input means for receiving the wastewood; means for removing metal from the wastewood; separation means for receiving the wastewood from said metal removing means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood and said plastic or paper material is removed from the apparatus; blower means for lifting plastic or paper material from the wastewood and vacuum means for capturing the plastic or paper material and for transferring it to a collection means; means for transferring said first size of wastewood away from said separation means; and means for receiving said first size of wastewood from said transferring means and for further separating said first size of wastewood according to size.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said input means includes a first conveyor means for transferring wastewood from an input feed to said separation means.
Claim 4
Dependent Claim
26 words
The apparatus of claim 2 wherein said metal removing means includes a magnetic head roller on said first conveyor means for separating metal from the wastewood.
Claim 5
Dependent Claim
69 words
The apparatus of claim 3 further including a second conveyor means proximate said first conveyor means for receiving and transferring metal separated from the wastewood by said magnetic head roller, and a third conveyor means proximate said second conveyor means and having associated therewith a magnetic means for removing metal from said second conveyor means, said metal removed thereby transported by said third conveyor means to a collection location.
Claim 6
Dependent Claim
45 words
The apparatus of claim 1 wherein said separation means comprises a plurality of rotatable shafts having disc means mounted thereon for supporting the wastewood of said second size and plastic or paper material wherein the wastewood of said first size falls between said disc means.
Claim 7
Dependent Claim
30 words
The apparatus of claim 5 further including a fourth conveyor means disposed below said disc means such that the wastewood of said first size falls onto said fourth conveyor means.
Claim 8
Dependent Claim
34 words
The apparatus of claim 6 wherein said transferring means includes a fifth conveyor means for transferring the wastewood of said first size from said fourth conveyor means to said receiving and further separating means.
Claim 9
Dependent Claim
18 words
The apparatus of claim 7 wherein said fifth conveyor means is inclined at an angle from the horizontal.
Claim 10
Dependent Claim
36 words
The apparatus of claim 7 further including a sixth conveyor means having a pervious construction for transferring wastewood of said second size and plastic or paper material away from a discharge end of said separation means.
Claim 11
Dependent Claim
33 words
The apparatus of claim 9 wherein said blower means removes plastic or paper material from said sixth conveyor means with wastewood of second size being transferred to a location remote from the apparatus.
Claim 12
Dependent Claim
23 words
The apparatus of claim 10 wherein said receiving and further separating means comprises a rotatable trommel means having at least two separate outputs.
Claim 13
Dependent Claim
60 words
The apparatus of claim 11 wherein a seventh conveyor means is disposed substantially below and along the length of said trommel means to transfer product discharged at a first one of said outputs away from said trommel means, and an eighth conveyor means is disposed adjacent a second one of said outputs from transferring product away from said trommel means.
Claim 14
Dependent Claim
13 words
The apparatus of claim 1 wherein said collection means includes a cyclone means.
Claim 15
Dependent Claim
32 words
The apparatus of claim 1 wherein said vacuum means includes a hood means disposed above said sixth conveyor means and a vacuum fan connected to said hood means to establish a vacuum.
Claim 16
Dependent Claim
10 words
The apparatus of claim 1 located on a towable chassis.
Claim 17
Independent Claim
177 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper intermixed therewith, comprising; input means for receiving the wastewood; means for removing metal from the wastewood; first separation means for receiving the wastewood from said metal removing means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus, said first separation means including a plurality of rotatable shafts having disc means mounted thereon for supporting the wastewood of said second size and plastic or paper material wherein the wastewood of said first size falls between said disc means; a first conveyor means disposed below said disc means such that the wastewood of said first size falls onto said first conveyor means; means for removing plastic or paper from the wastewood; and a second conveyor means for transferring the wastewood of said first size from said first conveyor means to a second separating means for further separating said first size of wastewood according to size.
Claim 18
Independent Claim
177 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper intermixed therewith, comprising; input means for receiving the wastewood; means for removing metal from the wastewood; first separation means for receiving the wastewood from said metal removing means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus, said first separation means including a plurality of rotatable shafts having disc means mounted thereon for supporting the wastewood of said second size and plastic or paper material wherein the wastewood of said first size falls between said disc means; a first conveyor means disposed below said disc means such that the wastewood of said first size falls onto said first conveyor means; means for removing plastic or paper from the wastewood; and a second conveyor means for transferring the wastewood of said first size from said first conveyor means to a second separating means for further separating said first size of wastewood according to size.
Claim 19
Dependent Claim
26 words
The apparatus of claim 16 wherein said input means includes a third conveyor means for transferring wastewood from an input feed to said first separation means.
Claim 20
Dependent Claim
33 words
The apparatus of claim 16 wherein said metal removing means includes a first stage for separating the metal from the wastewood and a second stage for further separating the wastewood from the metal.
Claim 21
Dependent Claim
35 words
The apparatus of claim 18 wherein said first stage of said metal removing means includes a magnetic head roller of said third conveyor means for separating metal from the wastewood on said third conveyor means.
Claim 22
Dependent Claim
30 words
The apparatus of claim 18 further including a fourth conveyor means proximate said third conveyor means for receiving and transporting metal separated from the wastewood by said magnetic head roller.
Claim 23
Dependent Claim
57 words
The apparatus of claim 20 wherein said second stage of said metal removal means include a fifth conveyor means proximate said fourth conveyor means and having associated therewith a magnetic means for removing metal on said fourth conveyor means, the metal removed by said magnetic means being transported by said fifth conveyor means to a collection location.
Claim 24
Dependent Claim
21 words
The apparatus of claim 16 wherein said second separating means comprises a rotatable trommel means having at least two separate outputs.
Claim 25
Dependent Claim
38 words
The apparatus of claim 22 wherein a third conveyor means is disposed substantially below and along the length of said trommel means to transfer product discharged at a first one of said outputs away from said trommel means.
Claim 26
Dependent Claim
27 words
The apparatus of claim 23 further including a fourth conveyor means disposed adjacent a second one of said outputs for transferring product away from said trommel means.
Claim 27
Dependent Claim
27 words
The apparatus of claim 24 further including a fifth conveyor means for transferring product from said third conveyor means to a location remote from said trommel means.
Claim 28
Dependent Claim
36 words
The apparatus of claim 16 further including a third conveyor means of pervious construction for transferring the wastewood of said second size and plastic or paper away from a discharge end of said first separation means.
Claim 29
Dependent Claim
36 words
The apparatus of claim 26 wherein said plastic or paper removing means removes plastic or paper from said third conveyor means wherein the wastewood of second size is transferred to a location remote from the apparatus.
Claim 30
Dependent Claim
42 words
The apparatus of claim 27 wherein said plastic or paper removing means includes a blower means for lifting plastic or paper from said third conveyor means and vacuum means for capturing the plastic or paper and transferring it to a collection means.
Claim 31
Dependent Claim
32 words
The apparatus of claim 28 wherein said vacuum means includes a hood means disposed above said first conveyor means and a vacuum fan connected to said hood means to establish a vacuum.
Claim 32
Dependent Claim
12 words
The apparatus of claim 28 wherein said collection means includes a cyclone.
Claim 33
Dependent Claim
10 words
The apparatus of claim 16 located on a towable chassis.
Claim 34
Independent Claim
131 words
A method for processing wastewood, wherein the wastewood includes plastic or paper material intermixed therewith, comprising: receiving the wastewood at an input of an apparatus; separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus; removing plastic or paper material from the wastewood of said second size by lifting it therefrom and then capturing it by vacuum action to transfer it to a collection means; transferring the wastewood of said second size to a location remote from the apparatus, and transferring said first size of wastewood along the apparatus; and further separating said first size of wastewood according to size and discharging the wastewood so separated at at least two different outputs.
Claim 35
Independent Claim
131 words
A method for processing wastewood, wherein the wastewood includes plastic or paper material intermixed therewith, comprising: receiving the wastewood at an input of an apparatus; separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus; removing plastic or paper material from the wastewood of said second size by lifting it therefrom and then capturing it by vacuum action to transfer it to a collection means; transferring the wastewood of said second size to a location remote from the apparatus, and transferring said first size of wastewood along the apparatus; and further separating said first size of wastewood according to size and discharging the wastewood so separated at at least two different outputs.
Claim 36
Dependent Claim
57 words
The method of claim 32 wherein the wastewood includes metal and the metal is removed from the wastewood by magnetic means at a first location, the metal then being conveyed to a second location where it is again subjected to a magnetic force, and the metal then being conveyed to a third location away from the apparatus.
Claim 37
Dependent Claim
62 words
The method of claim 32 wherein said step of further separating includes conveying said first size of wastewood to a rotatable trommel means and rotating said trommel means to cause a product of a first size to be discharged at a first output of said trommel means and a product of a second size at a second output of said trommel means.
Claim 38
Independent Claim
133 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper intermixed therewith, comprising: input means for receiving the wastewood; screen separation means for receiving the wastewood from said input means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus; blower means for lifting plastic or paper from the wastewood of said second size and vacuum means for capturing the plastic or paper and for transferring it to a collection location; means for transferring said first size of wastewood away from said separation means; and trommel means for receiving said first size of wastewood from said transferring means and for further separating said first size of wastewood according to size.
Claim 39
Independent Claim
133 words
An apparatus for processing wastewood, the wastewood including metal, plastic or paper intermixed therewith, comprising: input means for receiving the wastewood; screen separation means for receiving the wastewood from said input means and for separating the wastewood according to size wherein a first size of wastewood is further processed by the apparatus and a second size of wastewood is removed from the apparatus; blower means for lifting plastic or paper from the wastewood of said second size and vacuum means for capturing the plastic or paper and for transferring it to a collection location; means for transferring said first size of wastewood away from said separation means; and trommel means for receiving said first size of wastewood from said transferring means and for further separating said first size of wastewood according to size.
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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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |