US3662498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Redressing of laps in lapping or honing machines
Assignee: PETER WOLTERS KRATZENFABRIK
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Filing: 1969-08-26
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Granted: 1972-05-16
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Expires: 1989-08-26
Abstract
Abstract The annular working surfaces of cast-iron laps in a two-lap lapping or honing machine are redressed by three or more redressing units each having an abrading ring surrounded by and secured to a gear which constitutes the planet pinion of a planetary transmission. The redressing units can be used interchangeably with gear-shaped workholders and their rings remove material from the working surfaces when the gears are rotated about their respective axes while the laps rotate in opposite directions.
Inventors
- 👤 Willi Caspers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:15
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/07; B24B37/08; B24B53/00; B24B53/017
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
In a lapping machine, a combination comprising, two lap plates rotatable relative to each other about a common axis and having annular lap surfaces axially spaced from and parallel to each other; at least three abrading rings having opposed abrading surfaces and arranged between and contacting said lap surfaces, the outer diameter of each of said rings being at least equal to the width of said lap surfaces; a plurality of ring-shaped gears, one for each of said abrading rings, each surrounding a respective ring and being fixed thereto; and gear means meshing with said ring-shaped gears for driving the latter and said abrading rings fixed thereto about their axes so as to dress said lap surfaces while said lap plates rotate.
Claim 2
Dependent Claim
122 words
In a lapping machine, a combination comprising, two lap plates rotatable relative to each other about a common axis and having annular lap surfaces axially spaced from and parallel to each other; at least three abrading rings having opposed abrading surfaces and arranged between and contacting said lap surfaces, the outer diameter of each of said rings being at least equal to the width of said lap surfaces; a plurality of ring-shaped gears, one for each of said abrading rings, each surrounding a respective ring and being fixed thereto; and gear means meshing with said ring-shaped gears for driving the latter and said abrading rings fixed thereto about their axes so as to dress said lap surfaces while said lap plates rotate.
Claim 3
Dependent Claim
46 words
A combination as defined in claim 1, wherein said gear means comprise a first additional gear surrounded by said ring-shaped gears and a second additional gear surrounding said ring-shaped gears, one of said additional gears being arranged to rotate with reference to the other additional gear.
Claim 4
Dependent Claim
157 words
In a lapping machine, a combination comprising two lap plates rotatable in opposite directions relative to each other about a common axis and having annular lap surfaces axially spaced from and substantially parallel to each other; at least three abrading rings having opposed abrading surfaces and arranged between and contacting said lap surfaces, the outer diameter of each of said rings being at least equal to the width of said lap surfaces; a plurality of ring-shaped gears, one for each of said abrading rings, each surrounding a respective ring and being fixed thereto; gear means meshing with said ring-shaped gears for driving the latter and said abrading rings fixed thereto about their axes so as to dress said lap surfaces while said lap plates rotate in opposite directions; and reversible drive means connected to said gear means for rotating said abrading rings either in the direction of rotation of one or the otHer of said lap plates.
Claim 5
Dependent Claim
157 words
In a lapping machine, a combination comprising two lap plates rotatable in opposite directions relative to each other about a common axis and having annular lap surfaces axially spaced from and substantially parallel to each other; at least three abrading rings having opposed abrading surfaces and arranged between and contacting said lap surfaces, the outer diameter of each of said rings being at least equal to the width of said lap surfaces; a plurality of ring-shaped gears, one for each of said abrading rings, each surrounding a respective ring and being fixed thereto; gear means meshing with said ring-shaped gears for driving the latter and said abrading rings fixed thereto about their axes so as to dress said lap surfaces while said lap plates rotate in opposite directions; and reversible drive means connected to said gear means for rotating said abrading rings either in the direction of rotation of one or the otHer of said lap plates.
References Cited (Backward Citations)
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |