Patent US3136001A successfully refreshed from Google Patents.
US3136001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold for molding dynamically balanced fans
Assignee: General Electric Co
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Filing: 1963-05-31
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Granted: 1964-06-09
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert B Gelbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:30
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/37; B29C45/376; B29L; B29L2031/00; B29L2031/08; B29L2031/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A MOLD FOR MOLDING A DYNAMICALLY BALANCED PLASTIC FAN COMPRISING MOLD HALVES INCLUDING CAVITY SURFACES FORMING A MOLD CAVITY HAVING THE SHAPE AND CONFIGURATION OF SAID FAN, A PLURALITY OF SPACED RECESSES IN PORTIONS OF SAID CAVITY SSURFACES DEFINING PERIPHERAL INACTIVE SURFACE PORTIONS OF SAID FAN FOR FORMING PADS ON SAID SURFACE PORTIONS OF SAID FAN, A THREADED HOLE EXTENDING FROM EACH OF SAID RECESSES PERPENDICULAR TO BE THE PARTING LINE OF SAID MOLD HALVES, AND A PIN THREADED INTO EACH OF SAID HOLES AND HAVING A NON-THREADED TIP ADAPTED TO EXTEND INTO SAID RECESS WHEREBY ADJUSTMENT OF SAID PIN PROVIDES MEANS FOR VARYING THE WEIGHT OF ONE OR MORE OF SAID PADS TO PROVIDE A DYNAMIC BALANCE IN SAID FAN
Claim 2
Dependent Claim
121 words
A MOLD FOR MOLDING A DYNAMICALLY BALANCED PLASTIC FAN COMPRISING MOLD HALVES INCLUDING CAVITY SURFACES FORMING A MOLD CAVITY HAVING THE SHAPE AND CONFIGURATION OF SAID FAN, A PLURALITY OF SPACED RECESSES IN PORTIONS OF SAID CAVITY SSURFACES DEFINING PERIPHERAL INACTIVE SURFACE PORTIONS OF SAID FAN FOR FORMING PADS ON SAID SURFACE PORTIONS OF SAID FAN, A THREADED HOLE EXTENDING FROM EACH OF SAID RECESSES PERPENDICULAR TO BE THE PARTING LINE OF SAID MOLD HALVES, AND A PIN THREADED INTO EACH OF SAID HOLES AND HAVING A NON-THREADED TIP ADAPTED TO EXTEND INTO SAID RECESS WHEREBY ADJUSTMENT OF SAID PIN PROVIDES MEANS FOR VARYING THE WEIGHT OF ONE OR MORE OF SAID PADS TO PROVIDE A DYNAMIC BALANCE IN SAID FAN
References Cited (Backward Citations)
US446178A
Cited
US2881486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |