US4517481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular switch housing for an electric motor
Assignee: Airmaster Fan Co
•
Filing: 1983-06-02
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Granted: 1985-05-14
•
Expires: 2003-06-02
Abstract
Abstract The invention pertains to an electric fan wherein the fan motor casing is enclosed at its rear end by a dome. The power cord, switch and motor capacitor are mounted upon the dome, and the electrical conductors associated therewith are connected to the motor components through a separable connector permitting the switch, capacitor and power cord to be quickly removed from the motor casing facilitating repair, maintenance and replacement of these components.
Inventors
- 👤 Frank E. Breining
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:32
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
In an electric fan having an electric motor having a field coil, a housing including a casing, a front driveshaft end and a rear end, mounting means defined on said casing, the housing including a dome enclosing the motor rear end, and electrical conductors connected to the motor field coil, the improvement comprising an electric switch mounted within the housing dome, a motor capacitor mounted within the housing dome, a power cord mounted upon said housing dome extending thereunto, flexible electric conductors within said dome interconnecting said power cord, switch and capacitor, an electric connector within said housing dome having interconnectable and disconnectable first and second parts, said first connector part being electrically connected to said flexible conductors, said second connector part being electrically connected to the motor field coil, and fastening means releasably attaching said dome to the motor casing whereby release of said fasteners and disconnecting of said electric connector parts permits unitary removal and replacement of the dome, power cord, switch and capacitor.
Claim 2
Dependent Claim
166 words
In an electric fan having an electric motor having a field coil, a housing including a casing, a front driveshaft end and a rear end, mounting means defined on said casing, the housing including a dome enclosing the motor rear end, and electrical conductors connected to the motor field coil, the improvement comprising an electric switch mounted within the housing dome, a motor capacitor mounted within the housing dome, a power cord mounted upon said housing dome extending thereunto, flexible electric conductors within said dome interconnecting said power cord, switch and capacitor, an electric connector within said housing dome having interconnectable and disconnectable first and second parts, said first connector part being electrically connected to said flexible conductors, said second connector part being electrically connected to the motor field coil, and fastening means releasably attaching said dome to the motor casing whereby release of said fasteners and disconnecting of said electric connector parts permits unitary removal and replacement of the dome, power cord, switch and capacitor.
Claim 3
Dependent Claim
28 words
In an electric fan as in claim 1, a bracket mounted within the dome, capacitor mounting means defined on said bracket, said capacitor being mounted upon said bracket.
Claim 4
Dependent Claim
45 words
In an electric fan as in claim 2, said capacitor mounting means including a pocket defined thereon, said capacitor being received within said pocket, a tang defined upon said capacitor, and a screw extending through said tang threaded into a hole defined upon said bracket.
Claim 5
Dependent Claim
54 words
In an electric fan as in claim 1, said fastening means attaching the dome to the motor casing including screws threaded into the motor casing cooperating with bayonet slots defined in the dome, said screws and slots being irregularly spaced permitting only a single orientation of assembly of the dome upon the motor casing.
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |