Patent US4949511A successfully refreshed from Google Patents.
US4949511A
Expired / Lapsed
US
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Super abrasive grinding tool element and grinding tool
Assignee: Koya-Sha Co Ltd
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Filing: 1989-04-03
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Granted: 1990-08-21
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Expires: 2009-04-03
Abstract
Abstract This invention relates to a super abrasive grinding tool element and grinding tools having the element, the element being formed by bonding, with a resin system adhesive, super abrasive grains of diamond or the like to a mesh base so that the openings of the mesh base are kept open. In the element, there is sufficient cutting edge projection, a sufficient amount of coolant can be supplied, clogging is unlikely to occur, and high cutting efficiency can be maintained for a long time.
Inventors
- 👤 Yukio Endo
- 👤 Kazuyuki Mitani
- 👤 Tadashi Matsuoka
- 👤 Masayoshi Ueki
- 👤 Norio Otake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
A super abrasive grinding tool comprising a plurality of integrally laminated grinding elements, each of said grinding elements comprising: a mesh base, said mesh base being formed of threads composed of organic or synthetic organic fibers, said threads being spaced 0.4-1.5 mm apart from each other to form openings in said mesh base, said mesh base having a mesh density of 10-30 mesh; and a super-abrasive grain fixing portion, said super-abrasive grain fixing portion including super-abrasive grains such as diamond or cubic boron nitride, said super-abrasive grain fixing portion further including a resin adhesive, said super-abrasive grain fixing portion being bonded together and fixed to at least a part of said mesh base such that said threads are wrapped with said super-abrasive grains, wherein the area of said openings blocked by said super-abrasive grain fixing portion is less than 75%, and wherein said openings permit cuttings and air to pass therethrough.
Claim 2
Dependent Claim
151 words
A super abrasive grinding tool comprising a plurality of integrally laminated grinding elements, each of said grinding elements comprising: a mesh base, said mesh base being formed of threads composed of organic or synthetic organic fibers, said threads being spaced 0.4-1.5 mm apart from each other to form openings in said mesh base, said mesh base having a mesh density of 10-30 mesh; and a super-abrasive grain fixing portion, said super-abrasive grain fixing portion including super-abrasive grains such as diamond or cubic boron nitride, said super-abrasive grain fixing portion further including a resin adhesive, said super-abrasive grain fixing portion being bonded together and fixed to at least a part of said mesh base such that said threads are wrapped with said super-abrasive grains, wherein the area of said openings blocked by said super-abrasive grain fixing portion is less than 75%, and wherein said openings permit cuttings and air to pass therethrough.
Claim 3
Dependent Claim
42 words
A super-abrasive grinding tool as set forth in claim 1, wherein said mesh base is anular and said super-abrasive grain fixing portion is fixed to one of an outer peripheral edge portion or an inner peripheral edge portion of said mesh base.
Claim 4
Dependent Claim
48 words
A super-abrasive grinding tool as set fort in claim 1, wherein said mesh base is selected from one of the group consisting of a polygon or a circle, and said super-abrasive grain fixing portion is fixed to at least a part of the surface of said mesh base.
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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) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |