Patent US3666302A successfully refreshed from Google Patents.
US3666302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor assemblies
Assignee: CAV Ltd
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Filing: 1970-11-02
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Granted: 1972-05-30
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Expires: 1990-11-02
Abstract
Abstract A rotor assembly comprising a metal shaft having a cup shaped portion at one end thereof, a rotor having a spigot portion for engagement with the cup shaped portion, groove means defined about one or both co-operating surfaces of said portions and a filling material occupying said groove means. The filling material is arranged to have a higher co-efficient of thermal expansion than that of the cup shaped portion of the shaft and is compressed into said groove means so as to interpose a compressive stress upon the spigot portion of the rotor.
Inventors
- 👤 Eric Keliett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:26
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/021; F01D5/025; F04; F04D; F04D29/00; F04D29/18; F04D29/20; F16; F16B; F16B3/00; F16B3/04; F16D; F16D1/00; F16D1/06; F16D1/064; F16D1/072; H; H02; H02K; H02K9/00; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T403/00; Y10T403/21
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A rotor assembly as claimed in claim 1 in which said cup shaped portion defines entrance passages to said groove means whereby the filling material may be forced into the groove means.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |