US3791367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for dressing grinding wheels and the like
Assignee: Individual
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Filing: 1972-01-19
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Granted: 1974-02-12
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Expires: 1992-01-19
Abstract
Abstract A tool for dressing and trueing abrasive grinding wheels. The tool includes a matrix in the shape of a rectangular prism formed of fused powdered metal removably held in a holder, and a plurality of diamond macles imbedded in the matrix. The matrix has a rectangular front face with end edges that engage the grinding wheel, the top face being progressively eroded during the dressing operation. The macles are located with their faces perpendicular to the direction of movement of the grinding wheel surface and with one point thereof at an end edge of the front face of the matrix, so that even though the matrix and macles are eroded during the dressing operation, a diamond point is always maintained at each end edge of the front face.
Inventors
- 👤 R Cirell
- 👤 N Scardena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:21
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
In a dressing tool adapted to traverse across the face of a rotating abrasive grinding wheel, the tool including a holder that supports a soliD matrix having a wheel-engaging front face with end edges perpendicular to the direction of traverse, top and bottom faces generally parallel to the direction of traverse, and end faces generally perpendicular to the direction of traverse, the improvement which comprises: a plurality of macles embedded in said matrix, said macles comprising natural diamonds in the form of thin, flat triangular crystals with two parallel triangular planar faces and three narrow side edges that meet at the corners to define points, said macles being mounted in said matrix with their planar faces generally parallel to said top and bottom faces of said matrix, with one side edge of each macle in one of said end faces of said matrix and with one point in said front face at one of said end edges of said front face, whereby as said front face is eroded during dressing said macles each continuously have a point in the respective end edge defined at the intersection of said front face and the respective end face.
Claim 2
Dependent Claim
195 words
In a dressing tool adapted to traverse across the face of a rotating abrasive grinding wheel, the tool including a holder that supports a soliD matrix having a wheel-engaging front face with end edges perpendicular to the direction of traverse, top and bottom faces generally parallel to the direction of traverse, and end faces generally perpendicular to the direction of traverse, the improvement which comprises: a plurality of macles embedded in said matrix, said macles comprising natural diamonds in the form of thin, flat triangular crystals with two parallel triangular planar faces and three narrow side edges that meet at the corners to define points, said macles being mounted in said matrix with their planar faces generally parallel to said top and bottom faces of said matrix, with one side edge of each macle in one of said end faces of said matrix and with one point in said front face at one of said end edges of said front face, whereby as said front face is eroded during dressing said macles each continuously have a point in the respective end edge defined at the intersection of said front face and the respective end face.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |