US4087914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide assembly for portable saws
Assignee: Individual
•
Filing: 1977-05-20
•
Granted: 1978-05-09
•
Expires: 1997-05-20
Abstract
Abstract A guide for enabling straight-line tracking of a hand-held portable power saw over a work-piece having a clamp adapted to be secured at the forward edge of the sole plate of the saw, the clamp having at least one roller mounted thereon providing roller support for the saw on the work-piece, the roller having axially spaced apart work-piece engaging sections so as to inhibit angular deviation of the saw as it is moved over the work-piece.
Inventors
- 👤 Arthur E. Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
B; B23; B23D; B23D59/00; B23D59/001; B23D59/002; B23Q; B23Q9/00; B23Q9/0014; B23Q9/0028
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A guide assembly for attachment to a sole plate of a powered hand-saw comprising: (a) an elongated roller having axially spaced apart mutually rotatable end portions, (b) means for securing the roller at the forward end of and extending transversely to the saw sole plate and with the said end portions projecting below the sole plate, (c) said end portions of the outer roller being adapted to grip the surface of the work piece so as to inhibit angular deviation of the saw as it is moved over the work-piece.
Claim 2
Dependent Claim
90 words
A guide assembly for attachment to a sole plate of a powered hand-saw comprising: (a) an elongated roller having axially spaced apart mutually rotatable end portions, (b) means for securing the roller at the forward end of and extending transversely to the saw sole plate and with the said end portions projecting below the sole plate, (c) said end portions of the outer roller being adapted to grip the surface of the work piece so as to inhibit angular deviation of the saw as it is moved over the work-piece.
Claim 3
Dependent Claim
20 words
A guide assembly as claimed in claim 1 in which said end portions of the roller are peripherally toothed discs.
Claim 4
Dependent Claim
33 words
A guide assembly as claimed in claim 2 including caps formed of a rubber-like material adapted to be removably secured to the periphery of the discs for providing frictional engagement with the work-piece.
Claim 5
Dependent Claim
122 words
A guide assembly for attachment to a sole plate of a powered hand-saw comprising: (a) an elongated "U" shaped clamp having a thickened base section adapted to be removably secured to and extending transversely across the forward end of the sole plate, (b) the base portion of the clamp having a longitudinally extending bore, (c) a cylindrical shaft rotatably fitting in the bore and projecting from opposite ends thereof, (d) rollers secured at opposite ends of the shaft for mutual rotation therewith and projecting below the sole plate for engagement with a work-piece, (e) the rollers having peripheries adapted for gripping the surface of the work-piece so as to inhibit angular deviation of the saw as it is moved over the work-piece.
Claim 6
Dependent Claim
122 words
A guide assembly for attachment to a sole plate of a powered hand-saw comprising: (a) an elongated "U" shaped clamp having a thickened base section adapted to be removably secured to and extending transversely across the forward end of the sole plate, (b) the base portion of the clamp having a longitudinally extending bore, (c) a cylindrical shaft rotatably fitting in the bore and projecting from opposite ends thereof, (d) rollers secured at opposite ends of the shaft for mutual rotation therewith and projecting below the sole plate for engagement with a work-piece, (e) the rollers having peripheries adapted for gripping the surface of the work-piece so as to inhibit angular deviation of the saw as it is moved over the work-piece.
Claim 7
Dependent Claim
15 words
A guide assembly as claimed in claim 4 in which the rollers are peripherally-pointed discs.
Claim 8
Dependent Claim
30 words
A guide assembly as claimed in claim 5 including caps formed of a rubber-like material adapted to be fitted over the peripherally-pointed discs for providing frictional engagement with the work-piece.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |