EP0363313A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hollow stone-drilling tool
Assignee: Hilti AG
•
Filing: 1989-09-14
•
Granted: —
•
Expires: 2009-09-14
Abstract
Abstract The hollow drilling tool consisting of a tubular support body (1) and cutting segments (2) let into receptacles (1a) at the front end of the support body is provided with predetermined breaking points between the individual cutting segments (2), which predetermined breaking points run in a U-shape, are open towards the front end and are formed by cross-sectional reductions. The predetermined breaking points, formed as recesses (1b, 1c), enable slots (1d) to be broken out for the passage of the cooling water. <IMAGE>
Inventors
- 👤 Eugen Dr. Magyari
- 👤 Gebhard Gantner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/62; B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; E21B10/46; E21B10/48; E21B10/60; E21B10/605
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.