US3091060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic machining
Assignee: Dr Lehfeldt & Company G M B H
•
Filing: 1958-06-25
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Granted: 1963-05-28
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Giegerich August
- 👤 Sievers Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; B24; B24B; B24B1/00; B24B1/04; B28D5/00; B28D5/0058; B28D5/007; B28D5/04; B28D5/047; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S408/00; Y10S408/70; Y10T; Y10T408/00; Y10T408/16; Y10T408/23; Y10T408/44; Y10T408/45; Y10T408/455
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
IN AN APPARATUS FOR MACHINING MATERIAL, IN COMBINATION, A SUPPORT MEMBER FOR SUPPORTING THE MATERIAL TO BE MACHINED; A VIBRATORY MACHINING MEMBER HAVING A MACHINING SURFACE PORTION LOCATED OPPOSITE SAID SUPPORT MEMBER AND DEFINING WITH THE SAME A SPACE FOR THE MATERIAL; MEANS FOR INTRODUCING A MACHINING SLURRY IN LIQUID CONDITION AT ATMOSPHERIC PRESSURE INTO SAID SPACE AND BETWEEN SAID MACHINING SURFACE PORTION OF SAID MACHINING MEMBER AND THE MATERIAL BEING MACHINED; AND SUCTION MEANS COMMUNICATING WITH SAID SPACE FOR SUCKING THE MACHINING SLURRY OUT OF SAID SPACE FOR MOVING THE MACHINING SLURRY IN A SUBSTANTIALLY CONTINUOUS FLOW OVER SAID MACHINING SURFACE PORTION OF SAID MACHINING MEMBER AT A LESS THAN ATMOSPHERIC PRESSURE, WHEREBY THE VIBRATORY
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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US2804724A
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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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |