US4320679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw support
Assignee: Individual
•
Filing: 1980-05-19
•
Granted: 1982-03-23
•
Expires: 2000-05-19
Abstract
Abstract Support for holding a chain saw in a vertical aspect, the support having a slidable table to move a log across the blade.
Inventors
- 👤 Roger Trudeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:42
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0041; B27B17/0066; B23; B23D; B23D59/00; B23D59/007; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6587; Y10T83/6608; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
Chain saw support, comprising: (a) a main frame having spaced, parallel tracks, (b) a mount for fastening a chain saw on the frame with its blade extending vertically in a vertical plane that lies parallel to and externally of the tracks, (c) a table for supporting a log so that the longitudinal axis of the log is transverse to said vertical plane, said table being slidably mounted on the tracks for carrying a log from a first portion away from the saw to a second position past the saw for making a transverse cut through the log, and (d) an actuator operated by the sliding movement of the table to accelerate the saw as the table carries the log from the said first position to the second position.
Claim 2
Dependent Claim
128 words
Chain saw support, comprising: (a) a main frame having spaced, parallel tracks, (b) a mount for fastening a chain saw on the frame with its blade extending vertically in a vertical plane that lies parallel to and externally of the tracks, (c) a table for supporting a log so that the longitudinal axis of the log is transverse to said vertical plane, said table being slidably mounted on the tracks for carrying a log from a first portion away from the saw to a second position past the saw for making a transverse cut through the log, and (d) an actuator operated by the sliding movement of the table to accelerate the saw as the table carries the log from the said first position to the second position.
Claim 3
Dependent Claim
82 words
Chain saw support as recited in claim 1 wherein the actuator includes a downwardly-extending rod having an inclined surface, and a cam follower having a peg that engages the saw trigger and a spring that retracts the finger to accelerate the saw as the table moves from the first position to the second position, the inclined surface operating on the cam follower to retract the peg and decelerate the saw as the table returns from the second position to the first position.
Claim 4
Dependent Claim
25 words
Chain saw apparatus as recited in claim 1, wherein a bar oiler is mounted on the frame and automatically actuated by movement of the table.
Claim 5
Dependent Claim
31 words
Chain saw apparatus as recited in claim 3, wherein the table is provided with a vertical fence, and wherein the oiler is provided with a handle located rearwardly of the table.
Claim 6
Dependent Claim
20 words
Chain saw apparatus as recited in claim 4, wherein a table lock mechanism is also operated by the oiler handle.
Claim 7
Dependent Claim
42 words
Chain saw apparatus as recited in claim 1, wherein a saw guard is mounted on the table and covers the saw blade when the table is in the first position and exposes it as it moves from first position to second position.
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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) | 1985-03-22 | 1985-09-21 | 1986-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-22 | 1989-09-21 | 1990-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-22 | 1993-09-21 | 1994-03-23 | $7700.00 | Window Closed / Lapsed |