Patent US2708246A successfully refreshed from Google Patents.
US2708246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing of shafts in synthetic resin mouldings for a commutator
Assignee: Hoover Co
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Filing: 1949-09-08
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Granted: 1955-05-10
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Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Dunn Harold George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/06; B; B29; B29C; B29C39/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011; Y10T29/49826; Y10T29/49945; Y10T403/00; Y10T403/48; Y10T403/49; Y10T403/4966
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
THE METHOD OF SECURING A MOLDED COMMUTATOR TO THE SHAFT OF A DYNAMOELECTRIC MACHINE, WHICH COMPRISES MOLDING THE BODY OF SAID COMMUTATOR WITH A SYNTHETIC RESIN AND ALSO A RIBBED HOLE, THE SMALLER DIAMETER OF SAID HOLE DEFINED BY THE PEAKS OF SAID RIBS BEING SLIGHTLY LESS THAN THE DIAMETER OF SAID SHAFT AND THE LARGE DIAMETER OF SAID HOLE DEFINED BY THE BASE OF SAID RIBS BEING SLIGHTLY LARGER THAT SAID SHAFT, AND THEREAFTER FORCING SAID SHAFT INTO SAID RIBBED HOLE TO CRUSH THE PEAKS OF SAID SYNTHETIC RIBS INTO THE SPACES THEREBETWEEN TO SUBSTANTIALLY CONFORM SAID RIBS TO THE DIAMETER OF SAID SHAFT WITHOUT DISTORTING THE REMAINING RESINOUS PORTION OF SAID BODY.
Claim 2
Independent Claim
114 words
THE METHOD OF SECURING A MOLDED COMMUTATOR TO THE SHAFT OF A DYNAMOELECTRIC MACHINE, WHICH COMPRISES MOLDING THE BODY OF SAID COMMUTATOR WITH A SYNTHETIC RESIN AND ALSO A RIBBED HOLE, THE SMALLER DIAMETER OF SAID HOLE DEFINED BY THE PEAKS OF SAID RIBS BEING SLIGHTLY LESS THAN THE DIAMETER OF SAID SHAFT AND THE LARGE DIAMETER OF SAID HOLE DEFINED BY THE BASE OF SAID RIBS BEING SLIGHTLY LARGER THAT SAID SHAFT, AND THEREAFTER FORCING SAID SHAFT INTO SAID RIBBED HOLE TO CRUSH THE PEAKS OF SAID SYNTHETIC RIBS INTO THE SPACES THEREBETWEEN TO SUBSTANTIALLY CONFORM SAID RIBS TO THE DIAMETER OF SAID SHAFT WITHOUT DISTORTING THE REMAINING RESINOUS PORTION OF SAID BODY.
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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) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |