US3872901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting device
Assignee: C E M E T SA
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Filing: 1973-10-12
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Granted: 1975-03-25
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Expires: 1993-10-12
Abstract
Abstract A cutting device particularly suitable for forestry application. The device has two cutting discs coaxially mounted for rotation about a common axis. The discs are spaced apart along the common axis and each has a plurality of radially outwardly directed cutting tools mounted around its periphery. Located between the two cutting discs is a cutting chain having outwardly directed cutting tools. The chain moves along a guideway describing a circular sector about the common axis of the discs and in use removes the wood left between the two discs.
Inventors
- 👤 Denis Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:03
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/02; B27B17/14; B27B33/00; B27B33/20; B27B5/00; B27B5/10; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7083
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A device for making a wide saw cut, said device comprising; a frame; means defining an axis thereon; at least two discs coaxially mounted on said frame for rotation about said axis, said discs being spaced apart along said axis, each disc having a plurality of cutters radially outwardly extending from the disc and mounteD thereon at mutually spaced locations near the periphery the disc; means defining an arc-shaped guideway coaxial with and between said discs; an endless chain movable along said frame and arc-shaped guideway, said chain having a plurality of outwardly extending cutters mounted thereon and located between said discs when the chain moves along said arc-shaped guideway; means on said frame for rotating said discs; and means on said frame for moving said chain along said frame and arc-shaped guideway; whereby the cutters on said discs make mutually spaced narrow saw cuts and the cutters on said chain clear out uncut material between said spaced, narrow saw cuts, as the several cutters move along said arc-shaped guideway.
Claim 2
Independent Claim
170 words
A device for making a wide saw cut, said device comprising; a frame; means defining an axis thereon; at least two discs coaxially mounted on said frame for rotation about said axis, said discs being spaced apart along said axis, each disc having a plurality of cutters radially outwardly extending from the disc and mounteD thereon at mutually spaced locations near the periphery the disc; means defining an arc-shaped guideway coaxial with and between said discs; an endless chain movable along said frame and arc-shaped guideway, said chain having a plurality of outwardly extending cutters mounted thereon and located between said discs when the chain moves along said arc-shaped guideway; means on said frame for rotating said discs; and means on said frame for moving said chain along said frame and arc-shaped guideway; whereby the cutters on said discs make mutually spaced narrow saw cuts and the cutters on said chain clear out uncut material between said spaced, narrow saw cuts, as the several cutters move along said arc-shaped guideway.
Claim 3
Dependent Claim
37 words
A device according to claim 1 wherein the discs, arc-shaped guideway and cutters are so dimensioned that the cutters on the discs project beyond the cutters on the chain where the chain moves along said arc-shaped guideway.
Claim 4
Dependent Claim
47 words
A device according to claim 1 wherein said means for rotating said discs and said means for moving said chain comprise means for moving the cutters on the discs at a linear speed more rapid than that of the cutters on the chain along said arc-shaped guideway.
Claim 5
Dependent Claim
40 words
A device according to claim 1 including means mounted on said frame for regulating the tension of said chain, said tension regulating means comprising plate means and means for articulating said plate means to adjust the tightness of said chain.
Claim 6
Dependent Claim
22 words
A device according to claim 4 including a guide roller mounted at an end of said plate means for guiding said chain.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |