US3834435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dovetail fixture
Assignee: Robert Bosch Tool Corp
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Filing: 1973-10-15
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Granted: 1974-09-10
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Expires: 1993-10-15
Abstract
Abstract This invention is concerned with dovetail fixtures for clamping and holding orthogonally disposed workpieces and for guiding a cutting tool. A slotted guide member in the form of a comb or template is held against one of the workpieces to guide a router or similar cutting tool as the bit traces the dovetail pattern. A different cutter guiding template is employed herein. In addition novel workpiece locating members are movably attached to both the horizontal and the vertical work-receiving surfaces for spacing workpieces relative to each other during cutting.
Inventors
- 👤 Cord W Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:57
CPC Classifications
B; B27; B27F; B27F1/00; B27F1/08; B27F1/12; B27C; B27C5/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
A cutter guide member for a dovetail fixture for guiding a cutting tool in cutting mortises and tenons, in combination a template having one of its edges formed with a series of guide slots forming a plurality of fingers along one edge, each finger having a groove thereacross near the inner ends of the entrance slots, forming a transverse channel across the fingers at the base thereof adapted to receive and retain a guide band, and a guide band adapted to be held in said transverse channel, spanning guide slots between fingers.
Claim 2
Dependent Claim
92 words
A cutter guide member for a dovetail fixture for guiding a cutting tool in cutting mortises and tenons, in combination a template having one of its edges formed with a series of guide slots forming a plurality of fingers along one edge, each finger having a groove thereacross near the inner ends of the entrance slots, forming a transverse channel across the fingers at the base thereof adapted to receive and retain a guide band, and a guide band adapted to be held in said transverse channel, spanning guide slots between fingers.
Claim 3
Dependent Claim
33 words
The dovetail fixture of claim 1 wherein end sections of the template adjacent both outer guide slots have grooves in alignment with grooves across the fingers to receive ends of the guide band.
Claim 4
Dependent Claim
22 words
The dovetail fixture of claim 2 wherein the width of the guide band is equal to the width of the transverse grooves.
Claim 5
Dependent Claim
60 words
The dovetail fixture of claim 2 wherein the width of the guide band is equal to the width of the transverse groove in the end sections and across at least one finger, the band having marginal recessed sections along one edge therebetween so that the width of the guide band across entrance grooves is narrower than the transverse groove width.
Claim 6
Dependent Claim
55 words
A cutter guide member for a dovetail fixture for guiding a cutting tool in cutting mortises and tenons comprising a square cutter guiding template having guide slots along each of the four opposite edges thereof, and means for positioning the template in the dovetail fixture with any of the four sides in the guiding position.
Claim 7
Dependent Claim
55 words
A cutter guide member for a dovetail fixture for guiding a cutting tool in cutting mortises and tenons comprising a square cutter guiding template having guide slots along each of the four opposite edges thereof, and means for positioning the template in the dovetail fixture with any of the four sides in the guiding position.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |