US4677962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gearlike tool for dressing abrasive, gearlike, precision machining tools
Assignee: Gleason Hurth Tooling GmbH
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Filing: 1986-04-17
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Granted: 1987-07-07
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Expires: 2006-04-17
Abstract
Abstract A gearlike tool for dressing abrasive, gearlike, tools used for precision machining gear workpieces has tooth flanks which are coated with diamond grains. The gaps between teeth of the base member which has the diamond coating are enlarged, for example by removing teeth, in order to make the application of the coating easier. In order to assure a fully meshing engagement, the dressing tool can be combined with uncoated guide wheels which have teeth which meshingly engage the teeth of the precision machining tool.
Inventors
- 👤 Herbert Loos
- 👤 Manfred Erhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:11
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1225; B23F23/1231; B24; B24B; B24B53/00; B24B53/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are coated with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein on the metallic base member from at least each second tooth, from a defined location on said metallic base member, is removed at least one of the normal left and right tooth flanks.
Claim 2
Dependent Claim
90 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are coated with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein on the metallic base member from at least each second tooth, from a defined location on said metallic base member, is removed at least one of the normal left and right tooth flanks.
Claim 3
Dependent Claim
17 words
The dressing tool according to claim 1, wherein said tooth flanks of said normal teeth are involute-shaped.
Claim 4
Dependent Claim
22 words
The dressing tool according to claim 1, wherein both the left and right tooth flanks are removed so that no tooth remains.
Claim 5
Dependent Claim
24 words
A dressing tool according to claim 1, wherein said at least one of said left and right tooth flanks is removed from each tooth.
Claim 6
Dependent Claim
70 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are located with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein at least each second tooth of the metallic base member is totally removed.
Claim 7
Dependent Claim
70 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are located with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein at least each second tooth of the metallic base member is totally removed.
Claim 8
Dependent Claim
53 words
A dressing tool according to claim 5, wherein at least one guide gear is provided and which is arranged next to the base member in axial direction and is connected angularly adjustably to same, which guide gear can also be brought into engagement with the precision working tool which is to be dressed.
Claim 9
Dependent Claim
43 words
A dressing tool according to claim 6, including an odd number of teeth on said tool prior to said removal of teeth, and wherein said guide gear has only the teeth which correspond with the teeth which are missing on the base member.
Claim 10
Dependent Claim
100 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are coated with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein at an uneven number of teeth of the metallic base member at one point of two successive teeth, only their flanks which do not face one another are coated and moreover each second tooth of the metallic base member therefrom is totally removed.
Claim 11
Dependent Claim
100 words
In a dressing tool for dressing of abrasive gearlike precision tools, comprising a metallic, gearlike constructed base member, the tooth flanks of which are coated with extremely hard grinding grains and in which the gap between two successive teeth is wider than in a comparable gear with otherwise the same tooth system data, the improvement comprising wherein at an uneven number of teeth of the metallic base member at one point of two successive teeth, only their flanks which do not face one another are coated and moreover each second tooth of the metallic base member therefrom is totally removed.
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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) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |