US3785748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced automotive fan
Assignee: Individual
•
Filing: 1972-02-03
•
Granted: 1974-01-15
•
Expires: 1992-02-03
Abstract
Abstract A reinforced automotive flex-fan in which both sides of the flexible blade are reinforced by a one-piece member wrapped around the radial extremity of the blade.
Inventors
- 👤 T Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:00
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/382
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
58 words
In an automotive fan of the type having flexible blades mounted to spider arms emanating from a central hub the improvement comprising a one-piece reinforcement member disposed on both sides of each flexible blade, said reinforcement member being wrapped around the radial extremity of said blade and being mounted with said blade to one of the spider arms.
Claim 2
Dependent Claim
58 words
In an automotive fan of the type having flexible blades mounted to spider arms emanating from a central hub the improvement comprising a one-piece reinforcement member disposed on both sides of each flexible blade, said reinforcement member being wrapped around the radial extremity of said blade and being mounted with said blade to one of the spider arms.
Claim 3
Dependent Claim
21 words
The improvement set forth in claim 1 wherein the radial extremity of said blade is notched to receive said reinforcement member.
References Cited (Backward Citations)
US794984A
Cited
US2033345A
Cited
US2149267A
Cited
US3044557A
Cited
GB1021376A
Cited
US3289924A
Cited
US3594098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |