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Patent US4776761A successfully refreshed from Google Patents.
US4776761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated blades ceiling fan-lamps combination
Assignee: Individual
•
Filing: 1987-07-24
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Granted: 1988-10-11
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Expires: 2007-07-24
Abstract
Abstract A ceiling fan is provided and includes articulated fan blades such that when the fan is off the blades will hang vertically downwardly by force of gravity and when the fan is turned on the blades will rise radially to a horizontal pitched angled position due to the coaction of centrifugal force, and wind reaction force.
Inventors
- 👤 Octavio Diaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:25
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/34; F04D29/36; F04D29/362; F04D29/366; F04D25/00; F04D25/02; F04D25/08; F04D25/088
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A ceiling fan-lamp which comprises: (a) a hanger suspended from a ceiling; (b) an electric driving motor mounted to said hanger; (c) a hub attached coaxially to said motor and rotatively driven by said motor; (d) a plurality of angularly pitched hinge brackets, arcuately spaced apart and attached to said hub each hinge lying substantially tangential to said hub with one end of the hinge being raised in a horizontal plane above the other end of the hinge, (e) a plurality of longitudinal fan blades, each connected at one end to a respective hinge bracket wherein the hinge is connected to the blade along a line which is angularly positioned with respect to a longitudinal axis of the blade, whereby said hinge bracket will permit free rotation of said fan blade from a relatively vertical unpitched position to a relatively horizontal running pitched position, and counter balance plates connected to the blades adjacent to the hinge brackets.
Claim 2
Dependent Claim
157 words
A ceiling fan-lamp which comprises: (a) a hanger suspended from a ceiling; (b) an electric driving motor mounted to said hanger; (c) a hub attached coaxially to said motor and rotatively driven by said motor; (d) a plurality of angularly pitched hinge brackets, arcuately spaced apart and attached to said hub each hinge lying substantially tangential to said hub with one end of the hinge being raised in a horizontal plane above the other end of the hinge, (e) a plurality of longitudinal fan blades, each connected at one end to a respective hinge bracket wherein the hinge is connected to the blade along a line which is angularly positioned with respect to a longitudinal axis of the blade, whereby said hinge bracket will permit free rotation of said fan blade from a relatively vertical unpitched position to a relatively horizontal running pitched position, and counter balance plates connected to the blades adjacent to the hinge brackets.
Claim 3
Dependent Claim
37 words
A ceiling fan-lamp as recited in claim 1 further comprising a lamp suspended from said motor so that when said fan is off said fan blades will hang vertically around said lamp acting as a decorative curtain.
Claim 4
Dependent Claim
88 words
A ceiling fan-lamp as recited in claim 2 wherein each of said fan blades is tapered from a relatively narrow width at the articulated end to a relatively wide width at distal end and each of said counter balance plates are formed continuously from the articulated end of each of said fan blades so as to, provide an alternate appearance of said ceiling fan while at rest in which said fan blades will bear against each other along their lengths thereof in a relatively vertical inclined conical position.
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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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |