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US4245144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark-machining apparatus
Assignee: Carl Dan Peddinghaus GmbH and Co KG
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Filing: 1978-06-05
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Granted: 1981-01-13
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Expires: 1998-06-05
Abstract
Abstract An electrode mounting plate having a flat face adhesively bonded to a graphite electrode and an opposite face forming a trough with reinforcing ribs, the trough being covered in use by the mounting plate of the spark machining apparatus to define a chamber communicating with the dielectric circulation system of the apparatus. Flow passages for the dielectric fluid are formed by drilling holes through the mounted electrode and the flat face of the electrode mounting plate.
Inventors
- 👤 Horst Wittenstein
- 👤 Harry Neumann
- 👤 Gunter Peddinghaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:20
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A mounting plate for carrying a graphite electrode on the electrode assembly mounting plate in a spark machining apparatus, comprising a broad and generally flat plate with rinsing bores therethrough and having opposite faces and a periphery, one face being flat for securing the graphite electrode thereto, the other face having walls, ribs and bosses protruding therefrom, the walls extending around the periphery of the plate to engage the electrode assembly mounting plate and embrace a chamber for dielectric fluid adjacent the other face, the ribs traversing the chamber in multiple directions and extending to the walls, and the ribs having a height from said other face less than the height of the walls and thereby permitting free flow of the dielectric fluid within the chamber, and the bosses having a height from said other face identical to the height of the walls to lie flush therewith and to engage the electrode assembly mounting plate of the spark machining apparatus, certain of the bosses having tapped apertures therein and normal to the plate.
Claim 2
Dependent Claim
173 words
A mounting plate for carrying a graphite electrode on the electrode assembly mounting plate in a spark machining apparatus, comprising a broad and generally flat plate with rinsing bores therethrough and having opposite faces and a periphery, one face being flat for securing the graphite electrode thereto, the other face having walls, ribs and bosses protruding therefrom, the walls extending around the periphery of the plate to engage the electrode assembly mounting plate and embrace a chamber for dielectric fluid adjacent the other face, the ribs traversing the chamber in multiple directions and extending to the walls, and the ribs having a height from said other face less than the height of the walls and thereby permitting free flow of the dielectric fluid within the chamber, and the bosses having a height from said other face identical to the height of the walls to lie flush therewith and to engage the electrode assembly mounting plate of the spark machining apparatus, certain of the bosses having tapped apertures therein and normal to the plate.
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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |