US3201857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making fan with slinger ring
Assignee: Madison Management Group Inc
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Filing: 1963-03-21
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Granted: 1965-08-24
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Klonoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:37
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/325; F04D29/326; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49327; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A METHOD FOR MAKING A FAN AND ATTACHED SLINGER RING COMPRISING THE STEPS OF PROVIDING A SINGLE SHEET METAL BLANK, CUTTING AND FORMING A CENTRAL PORTION OF SAID BLANK TO PROVIDE A FAN HAVING A CENTRAL HUB SECTION AND A PLURALITY OF INTEGRAL CIRCUMAXIALLY SPACED GENERALLY RADIAL FAN BLADES WHICH ARE ARRANGED AT SIMILAR PITCH ANGLES AND WHICH HAVE NOTCHES IN THEIR OUTER EDGE PORTIONS WHICH NOTCHES ARE ARRANGED IN AN ANNULAR SERIES APPROXIMATELY IN A COMMON RADIAL PLANE, CUTTING AND FORMING A GENERALLY ANNULAR PORTION OF SAID BLANK AROUND SAID CENTRAL POSITION TO PROVIDE A SLINGER RING HAVING A BODY AND A PLURALITY OF INTEGRAL CIRCUMAXIALLY SPACED GENERALLY RADIAL TABS WHICH ARE FORMED OF REMAINING PARTS OF THE BLANK DISPOSED BETWEEN THE OPENINGS LEFT BY THE FAN BLADES AND WHICH PROJECT INWARDLY BEYOND THE OUTER EDGES OF SAID OPENINGS SO AS TO HAVE AN INNER EDGE DIAMETER SMALLER THAN THE PERIPHERAL DIAMETER OF THE FAN BLADES, PROVIDING INWARDLY OPEN NOTCHES IN SAID TABS AND FLEXING THE FAN BLADES TO REDUCE THEIR SAID PERIPHERAL DIAMETER WHEREBY TO INTERENGATE SAID BLADE AND TAB NOTCHES AND THEREBY CONNECT SAID SLINGER RING TO AND AROUND SAID BLADES.
Claim 2
Independent Claim
194 words
A METHOD FOR MAKING A FAN AND ATTACHED SLINGER RING COMPRISING THE STEPS OF PROVIDING A SINGLE SHEET METAL BLANK, CUTTING AND FORMING A CENTRAL PORTION OF SAID BLANK TO PROVIDE A FAN HAVING A CENTRAL HUB SECTION AND A PLURALITY OF INTEGRAL CIRCUMAXIALLY SPACED GENERALLY RADIAL FAN BLADES WHICH ARE ARRANGED AT SIMILAR PITCH ANGLES AND WHICH HAVE NOTCHES IN THEIR OUTER EDGE PORTIONS WHICH NOTCHES ARE ARRANGED IN AN ANNULAR SERIES APPROXIMATELY IN A COMMON RADIAL PLANE, CUTTING AND FORMING A GENERALLY ANNULAR PORTION OF SAID BLANK AROUND SAID CENTRAL POSITION TO PROVIDE A SLINGER RING HAVING A BODY AND A PLURALITY OF INTEGRAL CIRCUMAXIALLY SPACED GENERALLY RADIAL TABS WHICH ARE FORMED OF REMAINING PARTS OF THE BLANK DISPOSED BETWEEN THE OPENINGS LEFT BY THE FAN BLADES AND WHICH PROJECT INWARDLY BEYOND THE OUTER EDGES OF SAID OPENINGS SO AS TO HAVE AN INNER EDGE DIAMETER SMALLER THAN THE PERIPHERAL DIAMETER OF THE FAN BLADES, PROVIDING INWARDLY OPEN NOTCHES IN SAID TABS AND FLEXING THE FAN BLADES TO REDUCE THEIR SAID PERIPHERAL DIAMETER WHEREBY TO INTERENGATE SAID BLADE AND TAB NOTCHES AND THEREBY CONNECT SAID SLINGER RING TO AND AROUND SAID BLADES.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |