Patent US4993947A successfully refreshed from Google Patents.
US3757628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixture for saw
Assignee: Individual
•
Filing: 1972-05-01
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Granted: 1973-09-11
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Expires: 1992-05-01
Abstract
Abstract An adjustable box having open sides and expandable ends is slipped over the end of a rafter which is to be cut to length. After the box is placed it is clamped to the rafter. The box carries an adjustable angle plate to which is fastened a tube. A bar sliding in this tube is secured at its ends to a second, parallel, bar which in turn carries a second sliding tube. This second tube has provision for fastening to a portable electric circular saw. After the fixture has been clamped to a rafter and set at the required angle and to the place marked for cutting, the attached saw is started and pushed through the rafter, cutting it off. Thus any requirement for scribing and following a cutting line is eliminated.
Inventors
- 👤 G Camacho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:43
CPC Classifications
B; B23; B23Q; B23Q9/00; B23Q9/0014; B23Q9/0042; B23Q9/005; Y; Y10; Y10T; Y10T83/00; Y10T83/667; Y10T83/68; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/889
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
179 words
The combination of a portable circular saw and a fixture for cutting an elongated work piece comprising: an adjustable telescoping box having open sides and bottom comprising: a pair of L-shaped parts, each having an end and a top leaf, said top leaves sliding one on the other, guided to parallel motion by a spline in one and a matching groove in the other; means locking said two top leaves together in any selected relative position; a screw clamp in one said end for clamping said box to said work piece; a turntable pivoted to one said top leaf and lockable at any selected angle; double hinged sliding means secUred to said adjustable telescoping box comprising: a first bar; a second bar; means at the ends of said first and second bars fastening them rigidly together in side-by-side and parallel relative position; a first tube slideable and rotatable on said first bar and secured rigidly to said turntable; a second tube slideable and rotatable on said second bar; and a portable circular saw secured rigidly to said second tube.
Claim 2
Dependent Claim
179 words
The combination of a portable circular saw and a fixture for cutting an elongated work piece comprising: an adjustable telescoping box having open sides and bottom comprising: a pair of L-shaped parts, each having an end and a top leaf, said top leaves sliding one on the other, guided to parallel motion by a spline in one and a matching groove in the other; means locking said two top leaves together in any selected relative position; a screw clamp in one said end for clamping said box to said work piece; a turntable pivoted to one said top leaf and lockable at any selected angle; double hinged sliding means secUred to said adjustable telescoping box comprising: a first bar; a second bar; means at the ends of said first and second bars fastening them rigidly together in side-by-side and parallel relative position; a first tube slideable and rotatable on said first bar and secured rigidly to said turntable; a second tube slideable and rotatable on said second bar; and a portable circular saw secured rigidly to said second tube.
Claim 3
Dependent Claim
88 words
The combination of a circular saw and a fixture for cutting a work piece comprising: clamp means for securing said fixture to said work piece; adjustable swivel means on said clamp piece; hinged sliding means comprising: a first bar; a second bar; means fastening said first and second bars together at their ends in side-by-side and parallel positions; means sliding on said first bar and also hinging it to said adjustable swivel means; and means sliding on said second bar and also hinging it to said circular saw.
Claim 4
Dependent Claim
88 words
The combination of a circular saw and a fixture for cutting a work piece comprising: clamp means for securing said fixture to said work piece; adjustable swivel means on said clamp piece; hinged sliding means comprising: a first bar; a second bar; means fastening said first and second bars together at their ends in side-by-side and parallel positions; means sliding on said first bar and also hinging it to said adjustable swivel means; and means sliding on said second bar and also hinging it to said circular saw.
Claim 5
Dependent Claim
81 words
The combination of a circular saw and a fixture for cutting a work piece comprising: an adjustable, telescoping box having open sides and partly open bottom and having a screw clamp in one end, whereby the box can be slid over the end of a plank work piece and secured thereto at a desired location; adjustable swivel means on said box; hinged sliding means secured to said adjustable swivel means; and means securing said circular saw to said hinged sliding means.
Claim 6
Dependent Claim
81 words
The combination of a circular saw and a fixture for cutting a work piece comprising: an adjustable, telescoping box having open sides and partly open bottom and having a screw clamp in one end, whereby the box can be slid over the end of a plank work piece and secured thereto at a desired location; adjustable swivel means on said box; hinged sliding means secured to said adjustable swivel means; and means securing said circular saw to said hinged sliding means.
Claim 7
Dependent Claim
55 words
The combination in accordance with claim 3 in which: said box comprises a pair of similar parts sliding together, each of said pair comprising a top leaf, an end and a lip, one top leaf sliding on the other top leaf guided by at least one spline and groove; and means locking said pair together.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |