US3842873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter head for a bark removing machine
Assignee: Individual
•
Filing: 1973-03-06
•
Granted: 1974-10-22
•
Expires: 1993-03-06
Abstract
Abstract A cutter head for a hole-rotor type barking machine. The cutter head comprises a plane ring disc provided with a number of mutually spaced cutter blades projecting from the disc. Each cutter blade is provided with a guiding element forming a support surface. The support surfaces of the guiding elements form a conical surface coaxial with the ring disc. Each guiding element is supported by the ring disc along the entire length of the element and is preferably cut from a ring shaped blank of solid material.
Inventors
- 👤 A Valo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:14
CPC Classifications
B; B27; B27L; B27L1/00; B27L1/04; B27L1/05; B27L11/00; B27L11/007
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A cutter head for a bark removing machine having a ringshaped hole-rotor through which logs to be debarked are passed longitudinally, the cutter head comprising a plane ring-shaped supporting disc to be fastened at the input side of the rotor and provided with at least one and preferably several mutually spaced cutter blades projecting from the disc, each being provided with a support surface associated with the blade, characterized in that the cutter head comprises separate, mutually spaced guiding elements fastened to the plane ring-shaped supporting disc and forming separate support surfaces located on a conical surface and facing the approaching log to be debarked, said guiding elements further being separated from each other by slits in which said cutter blades are mounted and through which the chips are removed.
Claim 2
Dependent Claim
130 words
A cutter head for a bark removing machine having a ringshaped hole-rotor through which logs to be debarked are passed longitudinally, the cutter head comprising a plane ring-shaped supporting disc to be fastened at the input side of the rotor and provided with at least one and preferably several mutually spaced cutter blades projecting from the disc, each being provided with a support surface associated with the blade, characterized in that the cutter head comprises separate, mutually spaced guiding elements fastened to the plane ring-shaped supporting disc and forming separate support surfaces located on a conical surface and facing the approaching log to be debarked, said guiding elements further being separated from each other by slits in which said cutter blades are mounted and through which the chips are removed.
Claim 3
Dependent Claim
52 words
A cutter head in accordance with claim 1, characterized in that each guiding element, at least with respect to the direction of rotation, is fastened at its rear edge by means of an end flange and at its inner circumferential edge by means of an edge flange to said ring-shaped supporting disc.
Claim 4
Dependent Claim
20 words
A cutter head in accordance with claim 1, characterized in that said guiding elements are formed of a solid material.
Claim 5
Dependent Claim
21 words
A cutter head in accordance with claim 3, characterized in that said guiding elements are cut off from a ring-shaped blank.
Claim 6
Dependent Claim
24 words
A cutter head in accordance with claim 1, characterized in that a space is formed between the guiding element and the corresponding cutter blade.
Claim 7
Dependent Claim
45 words
A cutter blade in accordance with claim 1, characterized in that the guiding element is provided with a cutter blade holder for a cutter blade, the position of the shearing edge of which is adjustable in relation to the support surface of the guiding element.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |