Patent US3708001A successfully refreshed from Google Patents.
US3708001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barking drum
Assignee: Individual
•
Filing: 1970-11-10
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Granted: 1973-01-02
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Expires: 1990-11-10
Abstract
Abstract A drum barker including an elongated drum arranged to rest in a horizontal position and supported for rotation by several systems of motor driven wheels placed in a row on both sides of the drum and for axial movement by a set of wheels engaging a pair of guiding rings situated on the drum. The drum is adapted to receive through one end the timber to be debarked. The inner surface of the drum is provided with projections for removing the bark, while the outer surface is provided with slots through which the detached bark is discharged. Alternatively, the outer surface is provided with a plurality of reinforcing hoops with a set of wheels symmetrically disposed on either side thereof. A spray system is included for spraying a liquid on the timber either as it enters the drum to soak the bark or as it leaves the drum to facilitate the removal of loose bark from the timber, or both. The spray system may also spray the rotating and axially movable drum and the system of wheels to reduce the friction between the outer surface of the drum and its points of contact with the system of wheels. Alternatively to, or in conjunction with, the spray system a parallel switching system may be utilized for equalizing the operation of the motor driven wheels.
Inventors
- 👤 R Koskinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:48
CPC Classifications
B; B27; B27L; B27L1/00; B27L1/02; B27L1/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
159 words
A drum barker comprising: a cylindrical drum, said drum including: opening means for receiving material to be barked, and bark discharge opening means disposed around the outer periphery of said drum; guide ring means disposed around said drum; a plurality of wheelworks disposed along opposite sides of said drum, said wheel works including: a plurality of axially spaced wheels; at least the outer portion of each wheel being composed of a resilient material and being arranged to contact and support the outer periphery of said drum; bearing bracket means including: bearing carrier means, and bearing means mounted on said bearing carrier means for rotatably supporting said wheels; said bearing carrier means and said bearing means being disposed within the axial extent of said wheelwork as defined by end wheels of said wheelwork; at least one of said wheelworks on each side of said drum being arranged to engage said guide ring means to resist axial movement of said drum.
Claim 2
Dependent Claim
159 words
A drum barker comprising: a cylindrical drum, said drum including: opening means for receiving material to be barked, and bark discharge opening means disposed around the outer periphery of said drum; guide ring means disposed around said drum; a plurality of wheelworks disposed along opposite sides of said drum, said wheel works including: a plurality of axially spaced wheels; at least the outer portion of each wheel being composed of a resilient material and being arranged to contact and support the outer periphery of said drum; bearing bracket means including: bearing carrier means, and bearing means mounted on said bearing carrier means for rotatably supporting said wheels; said bearing carrier means and said bearing means being disposed within the axial extent of said wheelwork as defined by end wheels of said wheelwork; at least one of said wheelworks on each side of said drum being arranged to engage said guide ring means to resist axial movement of said drum.
Claim 3
Dependent Claim
56 words
A drum barker according to claim 1 and further including: axle means interconnecting said wheels; motor means being provided for driving respective ones of at least some of said wheelworks; each motor means including a drive shaft being aligned with said axle means, and being at least partly disposed within an end one of said wheels.
Claim 4
Dependent Claim
102 words
A drum barker according to claim 1 and further including: axle means interconnecting said wheels; said plurality of wheels including at least two wheels being axially spaced; said bearing means including a pair of bearings disposed adjacent opposite ends of said axle means; said bearing bracket including a gear housing extending within the space between said two spaced wheels; gear means being mounted in said gear housing and being operatively connected to said axle means; and motor means disposed on a side of said bracket means away from sAid drum, and being operatively connected to said gear means for driving said wheels.
Claim 5
Dependent Claim
37 words
A drum barker according to claim 3 wherein: said at least two wheels comprises two pairs of wheels said gear housing being disposed between the innermost wheels of said pairs; said motor means comprising an electric motor,
Claim 6
Dependent Claim
23 words
A drum barker according to claim 4 and further including: a hydraulic coupling being operatively interconnected between said motor and said gear means.
Claim 7
Dependent Claim
39 words
A drum barker according to claim 5 wherein: the power output axis of said motor extends generally perpendicular toward a vertical plane through the axis of said drum, and is aligned with the input axis of said gear means.
Claim 8
Dependent Claim
64 words
A drum barker according to claim 1 wherein: said plurality of wheels include at least two wheels spaced axially; said bearing means including a support housing disposed in the space between said spaced wheels; said bark discharge openings being disposed adjacent the space between said spaced wheels; a gathering funnel being arranged externally of said discharge openings between the space between said spaced wheels.
Claim 9
Dependent Claim
57 words
A drum barker according to claim 1 wherein: said plurality of wheels include at least two wheels spaced axially; said bearing means including a support housing disposed in the space between said spaced wheels; and reinforcing hoop means being arranged around the outer periphery of said drum and being disposed within the space between said spaced wheels.
Claim 10
Dependent Claim
169 words
A drum barker comprising: a cylindrical drum, said drum including: opening means for receiving material to be barked, and bark discharge opening means disposed around the outer periphery of said drum; a plurality of wheelworks disposed along opposite sides of said drum, each of said wheelworks including: at least two axially spaced wheels; at least the outer portion of each wheel being composed of a resilient material and being arranged to contact and support the outer periphery of said drum; axle means interconnecting said wheels; bearing bracket means including: bearing carrier means, and a pair of bearings mounted on said bearing carrier means within said spaced wheels for rotatably supporting opposite ends of said axle; gear housing means extending within the space between said spaced wheels; gear means being mounted in said gear housing and being operatively connected to said axle means; and motor means disposed on a side of said bracket means away from said drum, and being operatively connected to said gear means for driving said wheels.
Claim 11
Dependent Claim
169 words
A drum barker comprising: a cylindrical drum, said drum including: opening means for receiving material to be barked, and bark discharge opening means disposed around the outer periphery of said drum; a plurality of wheelworks disposed along opposite sides of said drum, each of said wheelworks including: at least two axially spaced wheels; at least the outer portion of each wheel being composed of a resilient material and being arranged to contact and support the outer periphery of said drum; axle means interconnecting said wheels; bearing bracket means including: bearing carrier means, and a pair of bearings mounted on said bearing carrier means within said spaced wheels for rotatably supporting opposite ends of said axle; gear housing means extending within the space between said spaced wheels; gear means being mounted in said gear housing and being operatively connected to said axle means; and motor means disposed on a side of said bracket means away from said drum, and being operatively connected to said gear means for driving said wheels.
Claim 12
Dependent Claim
28 words
A drum barker according to claim 9 wherein: said motor comprises an electric motor; and a hydraulic coupling being operatively connected between said motor and said gear means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |