Patent US5011272A successfully refreshed from Google Patents.
Patent US3762103A successfully refreshed from Google Patents.
US3762103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for grinding and polishing metallographic and mineralogic samples
Assignee: Scan-Dia GmbH
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Filing: 1971-04-23
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Granted: 1973-10-02
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Expires: 1991-04-23
Abstract
Abstract A machine for grinding and polishing metallographic and mineralogic samples, in which a sample holder having a plurality of apertures for rotatably receiving samples embedded in a cylindrical body of synthetic resin, or the like, is subjected to rectilinear reciprocatory movement along the face of a rotating abrasive disc, one end of the sample bodies engaging the abrasive face thereof. The apertures of the sample holder are distributed over an area corresponding to a relatively large portion of the abrasive face of the abrasive disc, so as to result in a large capacity of the machine and, hence, a great output thereof, while still insuring a substantially uniform rate of abrasion and a plane polished face of each sample in the sample holder. Means may be provided for imposing a reciprocatory rotary movement on the samples about their axes during grinding and polishing. The rectilinear guide means required for the rectilinear reciprocatory movement of the sample holder may, in a further development of the basic idea of the invention, be extended over a plurality of aligned abrasive discs, so that a multi-stage grinding and polishing machine is provided in which the sample holder with the samples accommodated therein may after each stage of grinding or polishing, be conveyed along the guide means to the next stage, thus avoiding the necessity of removing the samples from the sample holder between consecutive stages of grinding and polishing. In this form, a plurality of sample holders may be used, simultaneously at the various abrasive discs and be passed on to the next disc after each other between consecutive stages of grinding and polishing. If desired, rinsing baths may be provided between the abrasive discs.
Inventors
- 👤 E Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:09
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/07; B24B37/10; B24B37/105; G; G01; G01N; G01N1/00; G01N1/28; G01N1/32
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
163 words
A machine for grinding and polishing metallographic and mineralogic samples embedded in cylindrical sample bodies, said machine comprising a power-driven rotary abrasive disc, a sample holder mounted for reciprocatory sliding movement in a direction parallel with the abrasive face of said abrasive disc, means for imparting reciprocatory movement to said sample holder, a plurality of apertures in said sample holder, each for rotatably receiving a cylindrical sample body having one end face engaging said abrasive face of said abrasive disc, a plurality of loading means adapted to engage one end face of said sample bodies for urging said sample bodies against said abrasive face, said loading means being mounted for rotation in said sample holder about axes coaxial with said apertures, driving means for imparting alternating rotary movement to said loading means independently of frictional driving forces exerted by said abrasive disc on said sample bodies, and means associated with said loading means for transmitting said alternating rotary movement to said sample bodies.
Claim 2
Dependent Claim
163 words
A machine for grinding and polishing metallographic and mineralogic samples embedded in cylindrical sample bodies, said machine comprising a power-driven rotary abrasive disc, a sample holder mounted for reciprocatory sliding movement in a direction parallel with the abrasive face of said abrasive disc, means for imparting reciprocatory movement to said sample holder, a plurality of apertures in said sample holder, each for rotatably receiving a cylindrical sample body having one end face engaging said abrasive face of said abrasive disc, a plurality of loading means adapted to engage one end face of said sample bodies for urging said sample bodies against said abrasive face, said loading means being mounted for rotation in said sample holder about axes coaxial with said apertures, driving means for imparting alternating rotary movement to said loading means independently of frictional driving forces exerted by said abrasive disc on said sample bodies, and means associated with said loading means for transmitting said alternating rotary movement to said sample bodies.
Claim 3
Dependent Claim
39 words
A machine as in claim 1, wherein said driving means for imparting alternating rotary movement to said loading means comprise a driving connection between said loading means, said driving connection being connected with a stationary member of said machine.
Claim 4
Dependent Claim
31 words
A machine as in claim 1, comprising rectilinear guide means for said sample holder, said guide means extending parallel with the abrasive face of said abrasive disc at a distance therefrom.
Claim 5
Dependent Claim
23 words
A machine as in claim 1, wherein said means for transmitting said alternating rotary movement to said sample bodies comprises a screwdriver-tipped shaft.
Claim 6
Dependent Claim
24 words
A machine as in claim 2, wherein said driving connection between said loading means is releaseably connected with said stationary member of said machine.
Claim 7
Dependent Claim
44 words
A machine as in claim 3, wherein said rectilinear guide means comprise a pair of rectilinear guide bars arranged on opposite sides of the axis of rotation of said abrasive disc, said sample holder being provided with slide shoes partially surrounding said guide bars.
Claim 8
Dependent Claim
21 words
A machine as in claim 1, wherein said sample holder is releaseably connected with said means for imparting reciprocatory movement thereto.
Claim 9
Dependent Claim
51 words
A machine as in claim 3, comprising additional power-driven abrasive discs aligned with said abrasive disc in the direction of said rectilinear guide means, said guide means extending also over said additional abrasive discs, said additional abrasive discs being equally associated with means for imparting reciprocatory movement to said sample holder.
Claim 10
Dependent Claim
21 words
A machine as in claim 8, comprising further means for varying the distance between said guide means and said abrasive disc.
Claim 11
Dependent Claim
230 words
A machine for grinding and polishing metallographic and mineralogic samples embedded in a cylindrical sample bodY, said machine comprising a plurality of power-driven rotary abrasive discs having their abrasive faces substantially aligned in a common plane and their axes of rotation substantially aligned in another common plane at right angles to said first-named plane, rectilinear guide means extending parallel with both of said common planes at a distance from said first-named common plane, a sample holder mounted for sliding movement on said guide means, said sample holder having a plurality of apertures for receiving said cylindrical sample bodies for free rotation about the axes thereof while having one end face engaging the abrasive face of any of said abrasive discs, means provided in conjunction with each abrasive disc for imparting reciprocatory movement of said sample holder along said guiding means while having the sample bodies accommodated therein engaging the abrasive face of such abrasive disc, loading means having means adapted to engage one end face of said sample bodies for urging the same against the abrasive face of any of said abrasive discs, said loading means being mounted for rotation in said sample holder about axes co-axial with said apertures, and driving means for imparting rotary movement to said loading means about said axes, said driving means being adapted to be connected with an anchoring member at each abrasive disc.
Claim 12
Dependent Claim
230 words
A machine for grinding and polishing metallographic and mineralogic samples embedded in a cylindrical sample bodY, said machine comprising a plurality of power-driven rotary abrasive discs having their abrasive faces substantially aligned in a common plane and their axes of rotation substantially aligned in another common plane at right angles to said first-named plane, rectilinear guide means extending parallel with both of said common planes at a distance from said first-named common plane, a sample holder mounted for sliding movement on said guide means, said sample holder having a plurality of apertures for receiving said cylindrical sample bodies for free rotation about the axes thereof while having one end face engaging the abrasive face of any of said abrasive discs, means provided in conjunction with each abrasive disc for imparting reciprocatory movement of said sample holder along said guiding means while having the sample bodies accommodated therein engaging the abrasive face of such abrasive disc, loading means having means adapted to engage one end face of said sample bodies for urging the same against the abrasive face of any of said abrasive discs, said loading means being mounted for rotation in said sample holder about axes co-axial with said apertures, and driving means for imparting rotary movement to said loading means about said axes, said driving means being adapted to be connected with an anchoring member at each abrasive disc.
Claim 13
Dependent Claim
15 words
A machine as in claim 10, wherein rinsing baths are arranged between said abrasive discs.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |