US3218705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a seal retainer, or the like
Assignee: St Louis Diecasting Corp
•
Filing: 1961-11-29
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Granted: 1965-11-23
•
Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Roger C Shirtum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:05
CPC Classifications
B; B21; B21H; B21H1/00; B21H1/06; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/924; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702; Y10T29/4998; Y10T29/49988; Y10T29/49989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF FORMING AN ANNULAR RETAINER OF ALUMINUM, OR THE LIKE, HAVING AN INTERIOR DIAMETER GREATER THAN DIAMETERS TO EACH SIDE THEREOF ADAPTED FOR DISPOSITION ON A SHAFT COMPRISING DIE-CASTING A RETAINER HAVING A MAXIMUM INTERNAL DIAMETER AT ONE SIDE AND AN ANNULAR AXIALLY DIRECTED BEAD ADJACENT THERETO, APPLYING A PRESSURE AGAINST THE BEAD MOVING THE MATERIAL THEREOF RADICALLY INWARDLY DECREASING SAID INTERNAL DIAMETER AT THE OPENING, PROVIDING AN INTERIOR DIAMETER GREATER THAN THE LIP DIAMETER, AND TRIMMING SAID MODIFIED PORTION TO TRUE THE FORM THEREOF.
Claim 2
Independent Claim
87 words
A METHOD OF FORMING AN ANNULAR RETAINER OF ALUMINUM, OR THE LIKE, HAVING AN INTERIOR DIAMETER GREATER THAN DIAMETERS TO EACH SIDE THEREOF ADAPTED FOR DISPOSITION ON A SHAFT COMPRISING DIE-CASTING A RETAINER HAVING A MAXIMUM INTERNAL DIAMETER AT ONE SIDE AND AN ANNULAR AXIALLY DIRECTED BEAD ADJACENT THERETO, APPLYING A PRESSURE AGAINST THE BEAD MOVING THE MATERIAL THEREOF RADICALLY INWARDLY DECREASING SAID INTERNAL DIAMETER AT THE OPENING, PROVIDING AN INTERIOR DIAMETER GREATER THAN THE LIP DIAMETER, AND TRIMMING SAID MODIFIED PORTION TO TRUE THE FORM THEREOF.
References Cited (Backward Citations)
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |