US3585854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for indicating surface roughness
Assignee: Marine And Ind Scient & Techni
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Filing: 1968-04-11
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Granted: 1971-06-22
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Expires: 1988-04-11
Abstract
Abstract A method and apparatus for indicating the surface roughness of a surface of a material comprising passing an erodable probe along a predetermined path across the surface and transmitting movement corresponding to the amount of probe thereby removed to an indicator. The device for indicating the surface roughness includes a support plate having legs which may be magnetic, contacting the surface, a guide connected to the support plate for guiding an erodable probe along a path across the surface, and a holder for the erodable probe connected to the guide and loaded under a predetermined pressure by a spring. The indicator is carried by the support plate with appropriate linkage connecting the holder and the indicator. A casing is rotatable above the support plate for transmitting rotational movement to the probe.
Inventors
- 👤 Neville G Hanson
- 👤 Robert P Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A method of indicating the surface roughness of a material, comprising passing along a predetermined arcuate path across said surface an erodible probe of softer material than that forming the surface, and transmitting movement corresponding to the amount of probe thereby removed to an indicator.
Claim 2
Independent Claim
45 words
A method of indicating the surface roughness of a material, comprising passing along a predetermined arcuate path across said surface an erodible probe of softer material than that forming the surface, and transmitting movement corresponding to the amount of probe thereby removed to an indicator.
Claim 3
Independent Claim
127 words
A device for indicating the surface roughness of a material, comprising a support having spacing means for contacting the surface, guide means displaceably connected to said support for guiding along a predetermined arcuate path across said surface an erodible probe of softer material than that forming the surface, a holder for said erodible probe and movable therewith connected to said guide means and spring-biased so as to press the erodible probe against the surface with a predetermined pressure, an indicator carried by the support and having a movable pointer, a linkage connectable to the holder and the pointer of said indicator for transmitting movement of the holder to the pointer, and a traversing means connected to said guide means for moving said guide relative to the support.
Claim 4
Independent Claim
127 words
A device for indicating the surface roughness of a material, comprising a support having spacing means for contacting the surface, guide means displaceably connected to said support for guiding along a predetermined arcuate path across said surface an erodible probe of softer material than that forming the surface, a holder for said erodible probe and movable therewith connected to said guide means and spring-biased so as to press the erodible probe against the surface with a predetermined pressure, an indicator carried by the support and having a movable pointer, a linkage connectable to the holder and the pointer of said indicator for transmitting movement of the holder to the pointer, and a traversing means connected to said guide means for moving said guide relative to the support.
Claim 5
Dependent Claim
12 words
A device according to claim 2 wherein said guide means is rotatable.
Claim 6
Dependent Claim
18 words
A device according to claim 3 wherein a cover secured to said guide means forms said traversing means.
Claim 7
Dependent Claim
12 words
A device according to claim 4 wherein said spacing means are magnetized
Claim 8
Dependent Claim
15 words
A device according to claim 5 wherein said linkage is adjustable for zeroing said indicator.
Claim 9
Dependent Claim
23 words
A device according to claim 6 wherein said linkage has inactivating means for optionally raising and retaining said probe in an inoperative position.
Claim 10
Independent Claim
151 words
A device for indicating the surface roughness of a magnetizable material comprising; a support plate having a predetermined arcuate slot positioned about the center of the plate; magnetic spacing legs connected to the bottom of the support plate and capable of magnetically adhering to the material; an erodible probe of softer material than that forming the surface of the material; a holder for the erodible probe operatively positioned in the arcuate slot and loaded under a predetermined pressure to press the erodible probe against the surface, an indicator positioned on the support plate and operatively connected to the holder for indicating the roughness of the surface, and casing means positioned above the support plate and around the arcuate slot and operatively connected to the probe holder for transmitting a rotational force to the erodible probe to cause it to move across the material surface along the length of the arcuate slot.
Claim 11
Independent Claim
151 words
A device for indicating the surface roughness of a magnetizable material comprising; a support plate having a predetermined arcuate slot positioned about the center of the plate; magnetic spacing legs connected to the bottom of the support plate and capable of magnetically adhering to the material; an erodible probe of softer material than that forming the surface of the material; a holder for the erodible probe operatively positioned in the arcuate slot and loaded under a predetermined pressure to press the erodible probe against the surface, an indicator positioned on the support plate and operatively connected to the holder for indicating the roughness of the surface, and casing means positioned above the support plate and around the arcuate slot and operatively connected to the probe holder for transmitting a rotational force to the erodible probe to cause it to move across the material surface along the length of the arcuate slot.
References Cited (Backward Citations)
US2035220A
Cited
US2329084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |