Patent US5497344A successfully refreshed from Google Patents.
Patent US4307640A successfully refreshed from Google Patents.
US4307640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw apparatus for cutting wood
Assignee: Individual
•
Filing: 1980-06-09
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Granted: 1981-12-29
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Expires: 2000-06-09
Abstract
Abstract A method of cutting logs which involves swinging a chain saw about a fixed pivot to bring the chain of the saw into cutting engagement with a log while the log is supported in an elevated position and restrained from lateral movement; together with an apparatus therefor which includes a table having a trough shaped log supporting top, and provided with a pivoted and adjustable mounting plate for the chain saw.
Inventors
- 👤 Melvin E. Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:42
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0041; B27B17/0058; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7101; Y10T83/7114; Y10T83/712; Y10T83/7126; Y10T83/7133; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
In wood cutting apparatus by which a log is supported in elevated position and against lateral movement thereof, and a chain saw assembly including a cutting chain, a motor for driving said chain and handles on said motor is mounted for swinging movement to bring said chain into cutting engagement with and pass it through said log beyond said log support; the improvement which comprises providing, as the mounting for said chain saw assembly, a plate for receiving said driving motor thereupon and which is pivotally mounted adjacent said log support to permit said swinging movement of said chain saw assembly when said motor is so received, extensions from said plate that are adjacent to but below said motor handles when said motor is received on said plate, means for connecting each of said motor handles to one of said adjacent extensions to temporarily secure said chain saw assembly on said mounting plate, and means for limiting the extent of pivotal movement of said plate.
Claim 2
Dependent Claim
165 words
In wood cutting apparatus by which a log is supported in elevated position and against lateral movement thereof, and a chain saw assembly including a cutting chain, a motor for driving said chain and handles on said motor is mounted for swinging movement to bring said chain into cutting engagement with and pass it through said log beyond said log support; the improvement which comprises providing, as the mounting for said chain saw assembly, a plate for receiving said driving motor thereupon and which is pivotally mounted adjacent said log support to permit said swinging movement of said chain saw assembly when said motor is so received, extensions from said plate that are adjacent to but below said motor handles when said motor is received on said plate, means for connecting each of said motor handles to one of said adjacent extensions to temporarily secure said chain saw assembly on said mounting plate, and means for limiting the extent of pivotal movement of said plate.
Claim 3
Dependent Claim
67 words
Apparatus as defined in claim 1, in which said drive motor handles include a side handle and a rear handle, one of said extensions projects laterally and one rearwardly from said mounting plate, both are mounted for sliding movement relative to said plate, said connecting means are tightenable flexible clamps, and means is provided for adjusting the extent of pivotal movement of said plate in one direction.
Claim 4
Dependent Claim
63 words
Apparatus as defined in claim 2, in which said chain saw assembly also includes at least one bolt extending outwardly from one side of said motor for adjusting said assembly, and said means for temporarily securing said saw assembly on said mounting plate also includes uprights extending from said plate and positioned to be engageable by said bolt of said assembly adjusting means.
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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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |