US3570370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe tracer stylus
Assignee: Speedring Corp
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Filing: 1969-05-19
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Granted: 1971-03-16
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Expires: 1989-05-19
Abstract
Abstract A stylus for a lathe tracer having a relatively flat body member with a template-engaging edge portion of varying contour so that the relationship between a lathe-cutting bit controlled by the stylus and a workpiece can be changed by engaging the template with a different point on the edge portion.
Inventors
- 👤 William Ristau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:30
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T82/00; Y10T82/14; Y10T82/141
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A lathe tracer stylus comprising: a circular body member having a pair of spaced, parallel side surfaces joined by a peripheral edge engageable with a template for guiding and controlling a lathe-cutting bit relative to a workpiece; a notch in said body member intersecting said peripheral edge; said peripheral edge having a cross section gradually varying from a substantial knife edge at one end of said notch to a relatively blunt edge at the other end of said notch, and mounting means on said stylus to permit the stylus to be selectively positioned in a holder around its axis to allow any part of said gradually varying peripheral edge to engage said template.
Claim 2
Dependent Claim
113 words
A lathe tracer stylus comprising: a circular body member having a pair of spaced, parallel side surfaces joined by a peripheral edge engageable with a template for guiding and controlling a lathe-cutting bit relative to a workpiece; a notch in said body member intersecting said peripheral edge; said peripheral edge having a cross section gradually varying from a substantial knife edge at one end of said notch to a relatively blunt edge at the other end of said notch, and mounting means on said stylus to permit the stylus to be selectively positioned in a holder around its axis to allow any part of said gradually varying peripheral edge to engage said template.
Claim 3
Dependent Claim
118 words
A stylus for a lathe tracer comprising: a relatively flat body member having a template-engaging peripheral edge for guiding and controlling a lathe-cutting bit over a workpiece; said peripheral edge gradually varying from a Relatively sharp edge cross section to relatively blunt edge cross section; and a holder adapted to be mounted in a lathe-tracing mechanism, said body being mounted on said holder and said body being selectively positionable on said holder to permit any portion along said gradually varying edge to engage a template whereby the relationship between a lathe cutting bit and a workpiece controlled by the stylus and said template can be changed by engaging the template with a different portion of said peripheral edge.
Claim 4
Dependent Claim
118 words
A stylus for a lathe tracer comprising: a relatively flat body member having a template-engaging peripheral edge for guiding and controlling a lathe-cutting bit over a workpiece; said peripheral edge gradually varying from a Relatively sharp edge cross section to relatively blunt edge cross section; and a holder adapted to be mounted in a lathe-tracing mechanism, said body being mounted on said holder and said body being selectively positionable on said holder to permit any portion along said gradually varying edge to engage a template whereby the relationship between a lathe cutting bit and a workpiece controlled by the stylus and said template can be changed by engaging the template with a different portion of said peripheral edge.
References Cited (Backward Citations)
US2038949A
Cited
US2717013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |