US4073598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling fan
Assignee: Sanyo Electric Co Ltd
•
Filing: 1976-04-14
•
Granted: 1978-02-14
•
Expires: 1996-04-14
Abstract
Abstract A ceiling fan comprises a cover provided with a rotor and wings, a stator, a fixed shaft attached to the stator and a member mounted on the fixed shaft and functioning as a protection member and/or fitting member. Thereby the fan is under protection, and parts of the fan and other equipments are easily fitted thereto.
Inventors
- 👤 Taketomo Mizutani
- 👤 Takaharu Yasunori
- 👤 Kazuyoshi Yoshimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F04D25/0613
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A ceiling fan comprising: a motor having a stator with a coil winding; a vertical shaft extending through the center of said stator and having portions positioned above and below said stator; a rotor positioned outwardly of said stator and rotatable with respect thereto; a protecting member having an upper portion and at least one bent portion extending downwardly therefrom, said bent portion including a base; said upper portion of said protecting member having a central opening through which said protecting member is mounted on said portion of said vertical shaft positioned below said stator, said base being located lower than said stator coil winding.
Claim 2
Dependent Claim
105 words
A ceiling fan comprising: a motor having a stator with a coil winding; a vertical shaft extending through the center of said stator and having portions positioned above and below said stator; a rotor positioned outwardly of said stator and rotatable with respect thereto; a protecting member having an upper portion and at least one bent portion extending downwardly therefrom, said bent portion including a base; said upper portion of said protecting member having a central opening through which said protecting member is mounted on said portion of said vertical shaft positioned below said stator, said base being located lower than said stator coil winding.
Claim 3
Dependent Claim
33 words
A ceiling fan according to claim 1 further comprising: a cover positioned beneath said stator and said rotor, said base being positioned adjacent the inside surface of said cover and beneath said stator.
Claim 4
Dependent Claim
38 words
A ceiling fan according to claim 1 further comprising: means for mounting a lamp beneath said stator, said means being mounted on said protecting member; a light-transmissive cover for said lamp; and means for mounting said lamp cover.
Claim 5
Dependent Claim
23 words
A ceiling fan according to claim 3 wherein said lamp cover mounting means includes a central shaft positioned centrally on said lamp cover.
Claim 6
Dependent Claim
37 words
The ceiling fan according to claim 4 further comprising a motor cover positioned between said lamp cover and said motor, said motor cover including a central opening, said central shaft and said lamp passing through said opening.
Claim 7
Dependent Claim
37 words
A ceiling fan according to claim 4 wherein said central shaft includes an axial opening, and further comprising means for activating said lamp, including a pull string extending axially downward through said opening of said central shaft.
Claim 8
Dependent Claim
38 words
A ceiling fan according to claim 1 further comprising means for mounting a motor switch, said motor switch mounting means being mounted on said protecting member; and a motor switch for controlling the rotational speed of said motor.
Claim 9
Dependent Claim
16 words
The ceiling fan according to claim 7 further comprising a speed indicator cooperating with said switch.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |