Electric motor construction
Abstract
Abstract 1,154,812. Axial-flow fans. ROTRON MFG. CO. Inc. Aug.18, 1967 [Dec.7, 1966], No.38126/67 Heading F1C. [Also in Division H2] A fan motor has a stator housing 14 with an axially extending tubular bearing support 22 secured in a bore in the housing and a laminated core 16 mounted on radially projection 14a of the housing. The rotor consists of a boss 34 which carries a shaft 38 supported in bearing 26 and an annular core 40 having a cast winding 44 which surrounds tubular bearing support 22. The shaft is held in bearing 26 by a spring clip and thrust washers 48, 50 are provided. The bearing cavity is sealed by ring 52 and plug 53. Fan blades 64 are mounted on an extension 30 attached to boss 34 and supporting spokes 62 are secured between housing 14 and outer ducting 60.
Inventors
- 👤 Dwight E Harris
- 👤 Donald S Wilson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |