Patent US4196547A successfully refreshed from Google Patents.
US4196547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder liner honing
Assignee: Caterpillar Inc
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Filing: 1978-02-22
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Granted: 1980-04-08
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Expires: 1998-02-22
Abstract
Abstract It is desirable to provide a relatively coarse finish at one end of an inner cylindrical wall of a cylinder or a cylinder liner and a relatively finer finish towards another end of said inner cylinder wall. A honing member is provided for rotation and oscillation in contact with the inner cylinder walls. A first section of the honing member has a relatively coarse grit surface and a second section of the honing member has a relatively fine grit surface. The abovementioned oscillation and rotation of such a honing member comprises an improved method for honing a cylindrical wall.
Inventors
- 👤 Frank E. Keske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:20
CPC Classifications
B; B24; B24B; B24B33/00; B24B33/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
A hone for an inner cylindrical wall of a cylinder or cylinder liner for obtaining hones of controlled and different finish roughness along the length of said wall, comprising: a honing member having a first section extending from a first end thereof towards a second end thereof and a second section extending from said first section to said second end of said member, said first section comprising a relatively coarse grit surface and said second section comprising a relatively fine grit surface, said first and second sections meeting in an oblique line.
Claim 2
Dependent Claim
92 words
A hone for an inner cylindrical wall of a cylinder or cylinder liner for obtaining hones of controlled and different finish roughness along the length of said wall, comprising: a honing member having a first section extending from a first end thereof towards a second end thereof and a second section extending from said first section to said second end of said member, said first section comprising a relatively coarse grit surface and said second section comprising a relatively fine grit surface, said first and second sections meeting in an oblique line.
Claim 3
Dependent Claim
33 words
A hone as in claim 1 wherein said second section extends from said second end of said member a greater distance than said first section extends from said first end of said member.
Claim 4
Independent Claim
177 words
A method of providing a finish of graded smoothly varying roughness from one end to another of an inner cylindrical wall of a cylinder or a cylinder liner, comprising: contacting a honing member having a longitudinal extension parallel to the axis of said cylindrical wall with said cylindrical wall, said member having a plurality of sections with a first of said sections beginning at a first end of said member and successive of said sections proceeding in order towards a second end of said member, said first section having a relatively coarse grit surface and successive of said sections having relatively finer grit surfaces in order towards said second end of said member, said member having a length of less than said cylindrical wall, said second end of said member extending axially within a cylindrical cavity formed by said cylindrical wall; moving said member circularly relative to said cylindrical axis while maintaining said honing member contacting with said cylinder wall; and simultaneously with said circular moving and contacting, oscillating said member axially relative to said cylindrical wall.
Claim 5
Independent Claim
177 words
A method of providing a finish of graded smoothly varying roughness from one end to another of an inner cylindrical wall of a cylinder or a cylinder liner, comprising: contacting a honing member having a longitudinal extension parallel to the axis of said cylindrical wall with said cylindrical wall, said member having a plurality of sections with a first of said sections beginning at a first end of said member and successive of said sections proceeding in order towards a second end of said member, said first section having a relatively coarse grit surface and successive of said sections having relatively finer grit surfaces in order towards said second end of said member, said member having a length of less than said cylindrical wall, said second end of said member extending axially within a cylindrical cavity formed by said cylindrical wall; moving said member circularly relative to said cylindrical axis while maintaining said honing member contacting with said cylinder wall; and simultaneously with said circular moving and contacting, oscillating said member axially relative to said cylindrical wall.
Claim 6
Dependent Claim
108 words
A method as in claim 3, wherein said first section extends about 1/3 the length of said member, said second section extends about the remaining 2/3 the length of said member and said oscillating comprises oscillating said member from one end to the other of said cylindrical cavity to provide a relatively coarse finish on about 1/6 of said cylindrical wall, a progressively relatively finer finish on an intermediate about 1/2 of said cylinder wall, and a relatively fine finish on the remaining about 1/3 of said cylinder wall with said coarse and fine finishes blending into one another via said intermediate about 1/2 of said cylinder wall.
Claim 7
Dependent Claim
38 words
A method as in claim 4, wherein said coarse grit surface is selected to provide about a 20 to 30 microinch finish and said fine grit surface is selected to provide about a 5 to 15 microinch finish.
References Cited (Backward Citations)
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GB596318A
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US2404192A
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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) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |