Patent US3913447A successfully refreshed from Google Patents.
US3913447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Router mitering-guide
Assignee: Individual
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Filing: 1974-10-08
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Granted: 1975-10-21
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Expires: 1994-10-08
Abstract
Abstract A guide for a powered manual router, including a longitudinally slotted bracket for adjustable attachment of the guide to a router at an angle permitting mitering of high pressure laminate structure, a frame affixed to the angle bracket, a top plate affixed beneath the frame and having an aperture centrally positioned for receipt of the router tool therethrough at a downward and forward angle, a bottom plate having a laterally sliding interconnection with the top plate and having a squaresection forward edge transversely positioned beneath the end of the router tool for guiding on workpieces; a pair of clamping bolts secure the bottom plate in any one of three lateral adjustment positions: centered, or to the left or right with the end of the bottom plate tangent the outer portion of the router tool to permit mitering interior corners of hardboard laminates in work such as L-shaped countertops.
Inventors
- 👤 Edward Noland Roche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:13
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/12; B23C3/126; B27; B27C; B27C5/00; B27C5/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304144; Y10T409/306216; Y10T409/306384
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
206 words
In a powered manual router of the type having a body, a sidecutting rotary tool extending from the body, a guide and means on the body for attachment of the guide thereto, said guide comprising: a top plate having an aperture therein, means for attaching the top plate horizontally beneath said a router with a portion of said a router tool extending forwardly and downwardly at an oblique angle through the aperture in the top plate, a bottom plate having: a square-section front edge, a stepped-down margin along a portion thereof adjacently coextensive with the front edge, a first end and a second end; means for securing the bottom plate beneath the top plate with the stepped-down margin providing clearance threrebetween with the front edge centrally transverse to said router tool and the plane of the front edge substantially aligned with the forward-most extension of the rouTer tool; and means for laterally relocating and for resecuring the bottom plate relative to the top plate in a direction parallel with the plane of said front edge to respective alternate positions placing either the first or the second end of the bottom plate, as desired, in coincidence with the position of a portion of said a router tool.
Claim 2
Dependent Claim
206 words
In a powered manual router of the type having a body, a sidecutting rotary tool extending from the body, a guide and means on the body for attachment of the guide thereto, said guide comprising: a top plate having an aperture therein, means for attaching the top plate horizontally beneath said a router with a portion of said a router tool extending forwardly and downwardly at an oblique angle through the aperture in the top plate, a bottom plate having: a square-section front edge, a stepped-down margin along a portion thereof adjacently coextensive with the front edge, a first end and a second end; means for securing the bottom plate beneath the top plate with the stepped-down margin providing clearance threrebetween with the front edge centrally transverse to said router tool and the plane of the front edge substantially aligned with the forward-most extension of the rouTer tool; and means for laterally relocating and for resecuring the bottom plate relative to the top plate in a direction parallel with the plane of said front edge to respective alternate positions placing either the first or the second end of the bottom plate, as desired, in coincidence with the position of a portion of said a router tool.
Claim 3
Dependent Claim
30 words
A guide as recited in claim 1, wherein the stepped-down margin coextensive with the front edge continues as a similar stepped down margin adjacent each end of the bottom plate.
Claim 4
Dependent Claim
24 words
A guide as recited in claim 2, wherein the stepped-down margins adjacent each end of the bottom plate are rearwardly tapered towards each other.
Claim 5
Dependent Claim
32 words
A guide as recited in claim 2, wherein the ends of the bottom plate have respective pad areas proximate said front edge and rearwardly of said pad areas taper towards each other.
Claim 6
Dependent Claim
42 words
A guide as recited in claim 2, wherein the means for securing the bottom plate with the front edge centrally transverse to the router tool comprises a pair of clamping members symmetrically laterally spaced about the position of said a router tool.
Claim 7
Dependent Claim
29 words
A guide as recited in claim 5, wherein the means for laterally relocating and for resecuring the bottom plate includes inter-engaging sliding structure on the top and bottom plates.
Claim 8
Dependent Claim
71 words
A guide as recited in claim 6, wherein the clamping members comprise bolts, each bolt passing through an aperture in one of said plates into an aperture in the other of said plates; and wherein said spacing between the clamping members is proportioned to register an aperture in one said plate with an aperture in the other said plate when the bottom plate is laterally relocated relative to the top plate.
Claim 9
Dependent Claim
19 words
A guide as recited in claim 7, wherein the top plate and the bottom plate are substantially laterally co-extensive.
Claim 10
Dependent Claim
100 words
A guide as recited in claim 7, wherein the means for attaching the top plate to said a router includes an angle bracket for establishing the angle of said a router tool with respect to said top and bottom plates, with a slot therein for adjustable screw-attachment to said a router, a tubular metal frame affixed horizontally to the angle bracket in an orientation to receive said a router tool through a first end thereof and to permit viewing said a router tool through a second end thereof, and means for attaching the tubular metal frame to the top plate.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |