US3133341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of banding piston rings
Assignee: Ramsey Corp
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Filing: 1961-04-25
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Granted: 1964-05-19
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Melvin W Marien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49274; Y10T29/49281; Y10T29/49282; Y10T29/4998; Y10T29/49982; Y10T29/49986; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF APPLYING A POROUS WEAR RESISTANT METAL BAND TO A FERROUS METAL PISTON RING WHICH COMPRISES FORMING A CROSS-SECTIONALLY DISH-LIKE GROOVE WITHIN A GROOVE DIVERGING ALL THE WAY FROM THE GROOVE BOTTOM TO THE BEARING FACE OF THE RING, DIRECTING A FIXED SPRAY STREAM AT THE BOTTOM OF THE GROOVE SUBSTANTIALLY TRANSVERSE TO THE AXIS OF THE PISTON RING, SPRAY DEPOSITING FROM SAID STREAM WITHIN SAID GROOVE IN DIRECT IMPINGING ENGAGEMENT WITH EVERY SURFACE OF SAID GROOVE, A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND ALUMINUM TRIOXIDE, AND EFFECTING RELATIVE ROTATION BETWEEN SAID SPRAY STREAM AND SAID GROOVE TO EFFECT AN INTIMATE BOND OF THE SPRAY DEPOSITED METAL WITH THE FERROUS METAL ABOUT THE ENTIRE RING.
Claim 2
Independent Claim
120 words
A METHOD OF APPLYING A POROUS WEAR RESISTANT METAL BAND TO A FERROUS METAL PISTON RING WHICH COMPRISES FORMING A CROSS-SECTIONALLY DISH-LIKE GROOVE WITHIN A GROOVE DIVERGING ALL THE WAY FROM THE GROOVE BOTTOM TO THE BEARING FACE OF THE RING, DIRECTING A FIXED SPRAY STREAM AT THE BOTTOM OF THE GROOVE SUBSTANTIALLY TRANSVERSE TO THE AXIS OF THE PISTON RING, SPRAY DEPOSITING FROM SAID STREAM WITHIN SAID GROOVE IN DIRECT IMPINGING ENGAGEMENT WITH EVERY SURFACE OF SAID GROOVE, A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND ALUMINUM TRIOXIDE, AND EFFECTING RELATIVE ROTATION BETWEEN SAID SPRAY STREAM AND SAID GROOVE TO EFFECT AN INTIMATE BOND OF THE SPRAY DEPOSITED METAL WITH THE FERROUS METAL ABOUT THE ENTIRE RING.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |