Patent US3224079A successfully refreshed from Google Patents.
US3224079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacture of turbine type blower wheels
Assignee: Individual
•
Filing: 1964-12-28
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Granted: 1965-12-21
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Henry G Dybvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:50
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/267; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
THE METHOD OF MANUFACTURING A BLOWER WHEEL OF THE TURBINE TYPE, INCLUDING THE STEPS OF FORMING A PAIR OF ARCUATE FLAT SHEET METAL MEMBERS, FORMING BLADES FROM THE SHEET METAL MEMBERS INTEGRAL WITH MARGINAL PORTIONS THEREOF, SUPERIMPOSING THE TWO ARCUATE FLAT SHEET METAL MEMBERS WITH THE BLADES OF ONE SHEET METAL MEMBER PROJECTING THROUGH THE OPENING FORMED BY FORMING THE BLADES OF THE OTHER SHEET METAL MEMBER,THE MARGIN OF THE SHEET METAL TERMINATING IN A COVEX EDGE BEING LONGER THAN THE OTHER MARGIN TERMINATING WITH THE CAVE EDGE, THE BLADES OF ONE MEMBER ALTERNATING WITH THE BLADES OF THE OTHER MEMBER, THE MARGINS OF THE SUPERIMPOSED SHEET METAL MEMBERS BEING PERMANENTLY SECURED TOGETHER, CURVING THE MARGINAL PORTIONS INTO CYLINDRICAL PORTIONS, THE MARGINAL PORTIONS ALONG ONE SIDE OF THE SECURED MEMBERS FORMING A CYLINDER HAVING A SMALLER DIAMETER THAN THE DIAMETER OF THE MARGINAL PORTIONS ALONG THE OTHER SIDE OF SAID SECURED MEMBERS SO THAT THE OUTLET OF THE TURBINE WHEEL LIES IN A CONICAL SECTION FORMING AN ACAUTE ANGLE WITH RESPECT TO THE AXIS OF ROTATION OF THE WHEEL, SECURING THE ENDS OF THE MARGINAL PORTIONS TOGETHER SO AS TO FORM A CLOSED CYLINDRICAL MEMBER ON EACH SIDE OF THE BLADES, FORMING A BACK-UP SUPPORTS PLATE, SECURING THE SUPPORT PLATE TO ONE OF THE MARGINAL PORTIONS, FORMING A FRUSTUM-CONICAL MEMBER SURROUNDING THE INTAKE OPENING OF THE BLOWER WHEEL, AND SECURING THE MARGIN OF THE FRUSTUM-CONICAL MEMBER TO THE OTHER MARGINAL PORTION OF THE BLOWER WHEEL.
Claim 2
Independent Claim
245 words
THE METHOD OF MANUFACTURING A BLOWER WHEEL OF THE TURBINE TYPE, INCLUDING THE STEPS OF FORMING A PAIR OF ARCUATE FLAT SHEET METAL MEMBERS, FORMING BLADES FROM THE SHEET METAL MEMBERS INTEGRAL WITH MARGINAL PORTIONS THEREOF, SUPERIMPOSING THE TWO ARCUATE FLAT SHEET METAL MEMBERS WITH THE BLADES OF ONE SHEET METAL MEMBER PROJECTING THROUGH THE OPENING FORMED BY FORMING THE BLADES OF THE OTHER SHEET METAL MEMBER,THE MARGIN OF THE SHEET METAL TERMINATING IN A COVEX EDGE BEING LONGER THAN THE OTHER MARGIN TERMINATING WITH THE CAVE EDGE, THE BLADES OF ONE MEMBER ALTERNATING WITH THE BLADES OF THE OTHER MEMBER, THE MARGINS OF THE SUPERIMPOSED SHEET METAL MEMBERS BEING PERMANENTLY SECURED TOGETHER, CURVING THE MARGINAL PORTIONS INTO CYLINDRICAL PORTIONS, THE MARGINAL PORTIONS ALONG ONE SIDE OF THE SECURED MEMBERS FORMING A CYLINDER HAVING A SMALLER DIAMETER THAN THE DIAMETER OF THE MARGINAL PORTIONS ALONG THE OTHER SIDE OF SAID SECURED MEMBERS SO THAT THE OUTLET OF THE TURBINE WHEEL LIES IN A CONICAL SECTION FORMING AN ACAUTE ANGLE WITH RESPECT TO THE AXIS OF ROTATION OF THE WHEEL, SECURING THE ENDS OF THE MARGINAL PORTIONS TOGETHER SO AS TO FORM A CLOSED CYLINDRICAL MEMBER ON EACH SIDE OF THE BLADES, FORMING A BACK-UP SUPPORTS PLATE, SECURING THE SUPPORT PLATE TO ONE OF THE MARGINAL PORTIONS, FORMING A FRUSTUM-CONICAL MEMBER SURROUNDING THE INTAKE OPENING OF THE BLOWER WHEEL, AND SECURING THE MARGIN OF THE FRUSTUM-CONICAL MEMBER TO THE OTHER MARGINAL PORTION OF THE BLOWER WHEEL.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |