Patent US3788192A successfully refreshed from Google Patents.
US3788192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal forming tool
Assignee: Individual
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Filing: 1971-11-01
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Granted: 1974-01-29
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Expires: 1991-11-01
Abstract
Abstract A tool for preparing beveled edges on metal workpieces having workpiece holding means and a cutting element. The cutting element being mounted in a carrier pivotally movable in an arc to form a curved bevel in the workpiece.
Inventors
- 👤 A Krieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:16
CPC Classifications
B; B23; B23D; B23D3/00; B23D3/04; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/504756; Y10T409/506232; Y10T409/506396; Y10T409/506888; Y10T409/507052; Y10T83/00; Y10T83/02; Y10T83/0259
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
107 words
A tool for bevelling an edge of an elongated workpiece comprising a head, a stirrup depending from said head, an opening defined in said stirrup for receiving said workpiece transverse to the plane thereof, a cutting member secured to a carrier, and motive means for moving said carrier, said carrier being pivotally secured about a first fulcrum to said stirrup and about a second fulcrum to said motive means to be carried to move within a plane parallel to that of said stirrup in an arc having said cutting element intersecting a corner of said opening to cut the edge of said workpiece with a curved face.
Claim 2
Dependent Claim
107 words
A tool for bevelling an edge of an elongated workpiece comprising a head, a stirrup depending from said head, an opening defined in said stirrup for receiving said workpiece transverse to the plane thereof, a cutting member secured to a carrier, and motive means for moving said carrier, said carrier being pivotally secured about a first fulcrum to said stirrup and about a second fulcrum to said motive means to be carried to move within a plane parallel to that of said stirrup in an arc having said cutting element intersecting a corner of said opening to cut the edge of said workpiece with a curved face.
Claim 3
Dependent Claim
78 words
The tool according to claim 1 wherein said stirrup comprises a pair of spaced plates secured to said head and said means for interconnecting said motive means and said cutting member comprises an arm connected to said motive means and depending between said plates, said carrier being pivotally journalled about a pin fixed to said plates and a pin fixed to said depending arm to be fulcrumed for arcuate movement about an axis remote from both said pins.
Claim 4
Dependent Claim
32 words
The tool according to claim 2 wherein said cutting member includes a blade, and fastening means for removably securing said blade to said body whereby the same may be removed and replaced.
Claim 5
Dependent Claim
38 words
The tool according to claim 3, said cutting tool comprises a blade having a plurality of cutting edges and said means for securing said blade is adapted to locate the blade With any one of said edges exposed.
Claim 6
Dependent Claim
37 words
The tool according to claim 2, said cutting member comprises a generally triangular body journaled adjacent the respective base angles thereof to said plates, said cutting blade being mounted on said body adjacent the third angle thereof.
Claim 7
Dependent Claim
49 words
The tool according to claim 2 wherein said motive means comprises a motor having a rotating drive shaft, an eccentric sleeve mounted on said drive shaft, said depending arm being journaled on said eccentric sleeve to move in a non-linear manner effecting the arcuate movement of the cutting member.
Claim 8
Dependent Claim
28 words
The tool according to claim 2 including bed plate means for supporting said workpiece and means for removably mounting said bed plate in the opening of said stirrup.
Claim 9
Dependent Claim
28 words
The tool according to claim 7 including means for movably mounting said bed plate within said opening to selectively adjust the position of said workpiece within said opening.
Claim 10
Dependent Claim
42 words
The tool according to claim 2 including guide means slidably mounted on said stirrup above said opening and movable into and out of the opening for said workpiece to limit the upper extent of said opening and to position said workpiece therein.
Claim 11
Dependent Claim
70 words
The tool according to claim 9 wherein said guide means comprises a triangular plate slidably mounted along one edge between the plates of said stirrup, the remaining edges of said guide extending at different angles with respect to said one edge, said guide being adapted to selectively present one of the remaining edges toward said opening thereby varying the angle of the edge limiting the upper extent of said opening.
Claim 12
Dependent Claim
34 words
The tool according to claim 9, wherein said guide means and said cutting member are aligned in the same plane between the plates of said stirrup and cooperate to stabilize the workpiece during cutting.
Claim 13
Dependent Claim
68 words
The tool according to claim 2 wherein said plates are removably secured to said head, and said arm carrying said cutting member is removably secured to said cutting member, the means for securing said plates and head being removable and symmetrically arranged whereby the plates may be jointly reversed, reversing the position of said opening with respect to said head, and said arm reconnected to said cutting member.
Claim 14
Dependent Claim
84 words
The tool according to claim 8 wherein said bed plate comprises a body, a stem supporting said body, stem flange means supported by said stem, a groove formed parallel to the lower edge of the opening in each of said plates for receiving said flange means and screw means for connecting said body and stem in pressure engagement about the edge of said plates, said pressure engagement being releasable to permit sliding movement of said bed plate relative to the edge of said opening.
Claim 15
Dependent Claim
47 words
The tool according to claim 13 including second flange means supported by said stem and adapted to rest upon the edge of the opening, said screw means being adapted to raise said bed plate while maintaining said flanges in pressure engagement about the edge of the opening.
Claim 16
Dependent Claim
67 words
The tool according to claim 8 wherein the bed plate comprises a body and a stem having a pair of parallel opposed flat sides extending the length thereof integral with said body and includes a bushing secured between the plates of said stirrup, said bushing having a circular bore formed therein, and a screw extending radially therein, into selective engagement with the flat sides of said stem.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |