US2973291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of point bearings in instruments
Assignee: Institut Dr Ing Reinhard Straumann AG
•
Filing: 1957-01-22
•
Granted: 1961-02-28
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Reinhard Dr Straumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:13
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/04; F16C17/08; C; C21; C21D; C21D8/00; C21D8/06; C22; C22C; C22C19/00; C22C19/07; C22F; C22F1/00; C22F1/10; F16C3/00; F16C3/02; G; G04; G04B; G04B13/00; G04B13/02; G04B31/00; G04B31/004; G04B31/008; G04B31/0082; G04D; G04D3/00; G04D3/0074; G04D3/0079; G04D3/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR THE PRODUCTION OF BEARINGS FROM A WIRE OF A HEAT HARDENABLE COBALT-CHEOMIUM-NICKEL ALLOY HAVING A COMPOSITION: CO 40-50%. CR 10-20%. MO ABOUT 5%. W ABOUT 5%. BE 0.2-0.4%. TI 0.8-1.2%. MN+SI 0-10%. FE 0-10%. NI REMAINDER. COMPRISING THE STEPS OF HOMOGENIZING THE WIRE OF AT A TEMPERATURE OF 1100*C., QUENCHING THE WIRE TO ATMOSPHERIC TEMPERATURE TO THE UNHARDENED CONDITION, COLD DRAWING THE QUENCHED WIRE TO A STRENGTH OF AT LEAST 200 KG./MM.2 AND A HARDNESS OF 600 VICKERS, AND HEAT HARDENING THE DRAWN WIRE AT A TEMPERATURE OF FROM 400 TO 500*C. AND CUTTING IT INTO SHORT LENGTHS IN THE FORM OF BEARINGS HAVING POINTED ENDS.
Claim 2
Dependent Claim
109 words
A PROCESS FOR THE PRODUCTION OF BEARINGS FROM A WIRE OF A HEAT HARDENABLE COBALT-CHEOMIUM-NICKEL ALLOY HAVING A COMPOSITION: CO 40-50%. CR 10-20%. MO ABOUT 5%. W ABOUT 5%. BE 0.2-0.4%. TI 0.8-1.2%. MN+SI 0-10%. FE 0-10%. NI REMAINDER. COMPRISING THE STEPS OF HOMOGENIZING THE WIRE OF AT A TEMPERATURE OF 1100*C., QUENCHING THE WIRE TO ATMOSPHERIC TEMPERATURE TO THE UNHARDENED CONDITION, COLD DRAWING THE QUENCHED WIRE TO A STRENGTH OF AT LEAST 200 KG./MM.2 AND A HARDNESS OF 600 VICKERS, AND HEAT HARDENING THE DRAWN WIRE AT A TEMPERATURE OF FROM 400 TO 500*C. AND CUTTING IT INTO SHORT LENGTHS IN THE FORM OF BEARINGS HAVING POINTED ENDS.
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) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |