US3082013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centering holder for workpieces
Assignee: ERNST THIELENHAUS MASCHINENFABRIK Firma
•
Filing: 1960-09-08
•
Granted: 1963-03-19
•
Expires: 1980-09-08
Abstract
No abstract record available.
Inventors
- 👤 Thielenhaus Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:04
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T29/00; Y10T29/49; Y10T29/49762; Y10T29/49995; Y10T29/49996
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
THE METHOD OF CENTERING A WORKPIECE IN A HOLDER ROTATABLE ABOUT AN AXIS WHICH COMPRISES MAINTAINING A LAMINAR FLOW OF A FLUID UNDER PRESSURE IN AN ANNULAR CLEARANCE SURROUNDING SAID AXIS BETWEEN CONFRONTING LIMITEDLY SPACED CLOSED PERIPHERAL SURFACES OF SAID HOLDER AND SAID WORKPIECE, AND ENTRAINING SAID WORKPIECE ALONG WITH SAID HOLDER.
Claim 2
Independent Claim
52 words
THE METHOD OF CENTERING A WORKPIECE IN A HOLDER ROTATABLE ABOUT AN AXIS WHICH COMPRISES MAINTAINING A LAMINAR FLOW OF A FLUID UNDER PRESSURE IN AN ANNULAR CLEARANCE SURROUNDING SAID AXIS BETWEEN CONFRONTING LIMITEDLY SPACED CLOSED PERIPHERAL SURFACES OF SAID HOLDER AND SAID WORKPIECE, AND ENTRAINING SAID WORKPIECE ALONG WITH SAID HOLDER.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |