US4155383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Router accessory
Assignee: Individual
•
Filing: 1977-12-21
•
Granted: 1979-05-22
•
Expires: 1997-12-21
Abstract
Abstract An accessory for an electric router which facilitates edging, trimming, groove cutting, and the like, on small workpieces. The accessory features a two tier construction, the workpiece being positioned on a work table pivotally mounted to the lower tier, while the router is vertically mounted on the upper tier. The upper tier is vertically movable with respect to the lower tier to accommodate the workpiece therebetween. The upper tier comprises a pair of parallel guide rails along which the router may be slidably moved through the workpiece. In an alternate mode of operation, the router may be securely clamped to the guide rails and the workpiece pushed along the work table through the router bit by a safety tool.
Inventors
- 👤 Edward V. Welliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:56
CPC Classifications
B; B27; B27C; B27C5/00; B27C5/10; B23; B23Q; B23Q9/00; B23Q9/0064; B23Q9/0078; B23Q9/0092; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/7755; Y10T83/7763; Y10T83/7768; Y10T83/7772; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
141 words
An accessory for an electric router, which comprises: first means for supporting a workpiece to be cut by said router; second means for supporting said router and positioned over said first means; means for adjusting the height of said second means relative to said first means; wherein said first means includes an elongated support member, said second means includes guide rail means and said height adjusting means includes means for maintaining said guide rail means substantially parallel to said elongated support member at all heights thereof; wherein said height adjusting means further includes means for limiting the height to which said guide rail means may be lowered with respect to said elongated support member; and wherein said height limiting means comprises a stop member coupled to and extending below said guide rail means a distance corresponding to the desired height limit.
Claim 2
Dependent Claim
141 words
An accessory for an electric router, which comprises: first means for supporting a workpiece to be cut by said router; second means for supporting said router and positioned over said first means; means for adjusting the height of said second means relative to said first means; wherein said first means includes an elongated support member, said second means includes guide rail means and said height adjusting means includes means for maintaining said guide rail means substantially parallel to said elongated support member at all heights thereof; wherein said height adjusting means further includes means for limiting the height to which said guide rail means may be lowered with respect to said elongated support member; and wherein said height limiting means comprises a stop member coupled to and extending below said guide rail means a distance corresponding to the desired height limit.
Claim 3
Dependent Claim
29 words
The router accessory as set forth in claim 1, wherein said height adjusting means comprises bracket means pivotally interconnected between said elongated support member and said guide rail means.
Claim 4
Dependent Claim
34 words
The router accessory as set forth in claim 1, wherein said guide rail means comprises a pair of elongated, spaced, parallel guide rails which extend in a direction parallel to said elongated support member.
Claim 5
Dependent Claim
43 words
The router accessory as set forth in claim 2, wherein said bracket means comprises four elongated brackets each of which is pivotally mounted at one end thereof to said elongated support member and at the other end thereof to said guide rail means.
Claim 6
Dependent Claim
47 words
The router accessory as set forth in claim 3, wherein said guide rail means further comprises means for mounting said router vertically thereon and having means for permitting passage of the bit of said router between said rails to a workpiece positioned on said support member therebelow.
Claim 7
Dependent Claim
29 words
The router accessory as set forth in claim 5, wherein said means for mounting said router includes means for permitting sliding movement of said router along said guide rails.
Claim 8
Dependent Claim
27 words
The router accessory as set forth in claim 6, wherein said means for mounting said router includes means for clamping the flanged base of said router thereto.
Claim 9
Dependent Claim
32 words
The router accessory as set forth in claim 7, wherein said means for permitting sliding movement comprises a pair of adjustable clamping means located respectively at each end of said mounting means.
Claim 10
Dependent Claim
35 words
The router accessory as set forth in claim 8, wherein said pair of guide rails include inwardly extending parallel flanges to which said pair of adjustable clamping means are mounted for selective sliding movement therealong.
Claim 11
Dependent Claim
37 words
The router accessory as set forth in claim 4, further comprising handle means connected to one of said other ends of said brackets for facilitating movement of said guide rails means relative to said elongated support member.
Claim 12
Dependent Claim
35 words
The router accessory as set forth in claim 1, wherein said stop member comprises a threaded bolt and a lock nut for permitting adjustment of the portion thereof which extends below said guide rail means.
Claim 13
Dependent Claim
33 words
The router accessory as set forth in claim 1, further comprising an additional clamping means placed between said parallel flanges for serving as a stop means for said sliding movement of said router.
Claim 14
Dependent Claim
59 words
The router accessory of claim 1, further comprising clamp means connected to said support member for clamping said table means in a fixed position to prevent rotation thereof, and lever means coupled to said clamp means for selectively raising and lowering the same respectively out of and into engagement with a table means pivotally mounted to said support member.
Claim 15
Dependent Claim
38 words
The router accessory as set forth in claim 13, wherein said table means includes a pivot pin and an arcuate edge equidistantly located from said pivot pin, said clamp means including means for selectively engaging said arcuate edge.
Claim 16
Dependent Claim
109 words
An accessory for an electric router, which comprises: first means for supporting a workpiece to be cut by said router; second means for supporting said router and positioned over said first means; means for adjusting the height of said second means relative to said first means; wherein said first means comprises a support member and table means pivotally mounted to said support member for rotation thereof in a substantially horizontal plane; and wherein said table means includes a substantially planar upper surface upon which said workpiece is adapted to be placed and slotted means formed therein for receiving safety means adapted to manually push said workpiece across said surface.
Claim 17
Dependent Claim
109 words
An accessory for an electric router, which comprises: first means for supporting a workpiece to be cut by said router; second means for supporting said router and positioned over said first means; means for adjusting the height of said second means relative to said first means; wherein said first means comprises a support member and table means pivotally mounted to said support member for rotation thereof in a substantially horizontal plane; and wherein said table means includes a substantially planar upper surface upon which said workpiece is adapted to be placed and slotted means formed therein for receiving safety means adapted to manually push said workpiece across said surface.
Claim 18
Dependent Claim
23 words
The router accessory as set forth in claim 15, and further comprising means adapted to secure said table means to a workbench therebelow.
Claim 19
Dependent Claim
27 words
The router accessory as set forth in claim 15, wherein said planar upper surface includes slot means formed therein for receiving means for clamping said workpiece thereon.
Claim 20
Dependent Claim
29 words
The router accessory as set forth in claim 15, further comprising a ledge formed along the rear edge of said table means against which said workpiece may be positioned.
Claim 21
Dependent Claim
17 words
The router accessory as set forth in claim 15, wherein said safety means comprises an elongated stick.
Claim 22
Dependent Claim
47 words
The router accessory as set forth in claim 15, wherein said slotted means is substantially parallel to the rear edge of said table means and is also inclined from its highest point at the center thereof downwardly to each of the side portions of said table means.
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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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |