US3586077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting guide means for a portable powersaw
Assignee: PEASE MARJORIE C
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Filing: 1969-07-03
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Granted: 1971-06-22
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Expires: 1989-07-03
Abstract
Abstract Cutting guide means for a portable powersaw wherein the guide means comprises an elongated platelike bar having a downwardly opening bottom longitudinal rectangular groove slidably receiving the heads of a pair of clamping bolts. Large-diameter nylon clamping nuts are threaded on the bolts and are engageable beneath opposite ends of the faceplate of a portable powersaw, the brackets having downwardly facing channels slidably engageable on the top rib for guiding the saw in a cutting path parallel to the bar. The bar may also include a protractor disposed at one end thereof, the protractor including a pivoted abutment arm movable to preselected angles. Clamp means is provided for locking the protractor arm in a preselected position on the protractor.
Inventors
- 👤 Mason E Pease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:02
CPC Classifications
B; B23; B23Q; B23Q9/00; B23Q9/0014; B23Q9/0042; B23Q9/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
Guide means for a portable powersaw comprising: an elongated substantially rectangular bar for positioning across a workpiece; said bar having an upstanding rail formed thereon and extending longitudinally thereof for engagement by said saw to guide said saw in a direction substantially parallel to said rail; said bar having a centrally located substantially rectangular longitudinally extending channel defined by opposed top and bottom walls, and an opposed pair of sidewalls, said bottom wall having a longitudinally extending slot formed therein throughout its length; fastening means on said bar engageable with opposed edge portions of said workpiece to releasably clamp said bar thereon; said fastening means comprising T-shaped bolts having crossheads slidably received within said channel and threaded stems projecting laterally from each crosshead and extending through said slot for engagement against said opposed edge portions, respectively, of said workpiece; and a nut mounted on each of said stems for releasable engagement against the underside of said workpiece.
Claim 2
Dependent Claim
157 words
Guide means for a portable powersaw comprising: an elongated substantially rectangular bar for positioning across a workpiece; said bar having an upstanding rail formed thereon and extending longitudinally thereof for engagement by said saw to guide said saw in a direction substantially parallel to said rail; said bar having a centrally located substantially rectangular longitudinally extending channel defined by opposed top and bottom walls, and an opposed pair of sidewalls, said bottom wall having a longitudinally extending slot formed therein throughout its length; fastening means on said bar engageable with opposed edge portions of said workpiece to releasably clamp said bar thereon; said fastening means comprising T-shaped bolts having crossheads slidably received within said channel and threaded stems projecting laterally from each crosshead and extending through said slot for engagement against said opposed edge portions, respectively, of said workpiece; and a nut mounted on each of said stems for releasable engagement against the underside of said workpiece.
Claim 3
Dependent Claim
76 words
Guide means as defined in claim 1 wherein: said bar includes a longitudinally extending main body portion including said channel, said slot, and said top, bottom and sidewalls defining the same; said rail extending longitudinally of said main body portion in laterally spaced and in substantially parallel relationship relative to a side thereof and throughout its length; and stabilizing means projecting laterally from the other side of said main body portion and engageable with said workpiece.
Claim 4
Dependent Claim
22 words
Guide means as defined in claim 2 wherein: said powersaw includes shoe means engageable over said rail for sliding movement longitudinally thereof.
Claim 5
Dependent Claim
72 words
Guide means as defined in claim 3 wherein: said shoe means includes an elongated member fixedly mounted on said powersaw and having a bifurcated end comprising a pair of arms and an interconnecting bight; said arms tracking said rail on opposite sides thereof upon movement of said powersaw longitudinally of said rail, and with one of said arms being slidably received within said groove and said bight slidably mounted over said rail.
Claim 6
Dependent Claim
34 words
Guide means as defined in claim 4 and: liner means coextensive with each of said arms and said bight and being secured thereto for interposition between each shoe and adjacent portions of said rail.
Claim 7
Dependent Claim
25 words
Guide means as defined in claim 1 and: protractor means fixedly secured to one end of said bar and projecting laterally from a side thereof.
Claim 8
Dependent Claim
71 words
Guide means as defined in claim 6 wherein: said protractor means comprises a substantially semicircular flat arm having its ends fixedly secured on said bar; an elongated protractor abutment arm having an end thereof pivotally connected on said bar and with an opposed end extending below and beyond said semicircular protractor arm; and means releasably connecting said protractor abutment bar on said protractor arm at preselected positions relative to one another.
Claim 9
Dependent Claim
70 words
Guide means as defined in claim 7 wherein: said releasable locking means includes a leg element having an end fixedly connected on said protractor bar and an opposed end extending over said protractor arm in spaced relationship relative thereto; and means on said protractor bar operable to flex said leg member into engagement with said protractor arm to clampingly secure said protractor bar against movement relative to said protractor arm.
Claim 10
Dependent Claim
61 words
Guide means as defined in claim 8 wherein: said protractor further includes: forming said protractor arm with a plurality of transversely extending openings at preselected angular positions relative thereto; and pin means mounted on said protractor bar and operable to engage within a preselected one of said openings to hold said protractor arm and bar against relative movement between one another.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |