Patent US3826437A successfully refreshed from Google Patents.
US3826437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demolition mill
Assignee: ECOLO Tech Inc
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Filing: 1973-02-16
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Granted: 1974-07-30
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Expires: 1993-02-16
Abstract
Abstract A demolition mill for solid debris utilizes free swinging demolition hammers rotatably mounted on shafts interconnecting solid metal wheels journaled in a housing. The hammers extend radially of the wheels under the action of centrifugal force to break, shatter or pulverize all kinds of solid debris. A hydraulic feed rotor is journalled adjacent the housing inlet and includes a cylindrical feed roller driven by a hydraulic motor mounted in a tube positioned within the roller. Lengths of chain or serrated bars welded to the periphery of the roller assist in feeding material to the hammers.
Inventors
- 👤 F Warren
- 👤 K Fling
- 👤 G Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:11
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0084; B02C23/00; B02C23/02; Y; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
In a demolition mill having frame means, housing means mounted on said frame means and defining an inlet throat and an outlet, a demolition rotor journalled in said housing means on a first generally horizontal axis extending in a direction transversely of said throat, a plurality of hammer elements carried by said rotor for demolishing material fed into said inlet throat, means for imparting rotation to said demolition rotor and a source of hydraulic fluid under pressure, a feed rotor journalled adjacent said inlet throat on an axis parallel to said first axis, said feed rotor comprising a generally cylindrical feed roller, motor receiving means disposed within said feed roller and connected to said frame means, hydraulic motor means mounted in said motor receiving means and drivingly connected to said feed roller, means connecting said hydraulic motor means to said source of hydraulic fluid, bearing means mounted on said motor receiving means, said feed roller being adapted to rotate on said bearing means, and means attached to the outer peripheral surface of said feed roller for feeding material into said inlet throat.
Claim 2
Dependent Claim
182 words
In a demolition mill having frame means, housing means mounted on said frame means and defining an inlet throat and an outlet, a demolition rotor journalled in said housing means on a first generally horizontal axis extending in a direction transversely of said throat, a plurality of hammer elements carried by said rotor for demolishing material fed into said inlet throat, means for imparting rotation to said demolition rotor and a source of hydraulic fluid under pressure, a feed rotor journalled adjacent said inlet throat on an axis parallel to said first axis, said feed rotor comprising a generally cylindrical feed roller, motor receiving means disposed within said feed roller and connected to said frame means, hydraulic motor means mounted in said motor receiving means and drivingly connected to said feed roller, means connecting said hydraulic motor means to said source of hydraulic fluid, bearing means mounted on said motor receiving means, said feed roller being adapted to rotate on said bearing means, and means attached to the outer peripheral surface of said feed roller for feeding material into said inlet throat.
Claim 3
Dependent Claim
93 words
The feed rotor of claim 1 further comprising a pair of arm means pivotally connected to said housing means and extending on opposite sides of said feed roller, said motor receiving means being attached at one end to one of said pair of arm means, said bearing means being mounted on said motor receiving means at said one end thereof, said feed roller rotation on said bearing means at one end of said feed roller, said feed roller being journalled at its other end in the other of said pair of arm means.
Claim 4
Dependent Claim
35 words
The feed roller of claim 2 further comprising web means disposed within said feed roller, said hydraulic motor means being drivingly attached to said web means adjacent the other end of said motor receiving means.
Claim 5
Dependent Claim
14 words
The feed rotor of claim 1 in which said feeding means comprise chain means.
Claim 6
Dependent Claim
14 words
The feed rotor of claim 1 in which said feeding means comprise serrated means.
References Cited (Backward Citations)
US1266894A
Cited
US3482788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |