Patent US3885344A successfully refreshed from Google Patents.
US3885344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stands for model aircraft
Assignee: PLAYART Ltd
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Filing: 1973-02-27
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Granted: 1975-05-27
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Expires: 1993-02-27
Abstract
Abstract A stand for the display of model aircraft which is provided with a fan for directing a current of air through a duct so as to flow past the freely-revolvable propellor of the aircraft.
Inventors
- 👤 Duncan Tong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:54
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
A stand for a model aircraft having an airscrew comprising: A BASE; A MOTOR FIXED TO SAID BASE; AN AIR OUTLET IN SAID BASE; A FAN DRIVABLY CONNECTED TO SAID MOTOR; AND A DUCT CONNECTING SAID FAN TO SAID AIR OUTLET IN SAID BASE, SAID OUTLET HAVING DIMENSIONS SUCH THAT A STREAM OF AIR CAN BE DIRECTED THROUGH SAID OUTLET AGAINST SUBSTANTIALLY ONLY SAID AIRSCREW; AND LOCATING MEANS ON SAID BASE FOR SO POSITIONING SAID AIRCRAFT ON SAID BASE THAT ONLY SAID AIRSCREW IS POSITIONED IN SAID STREAM OF AIR.
Claim 2
Dependent Claim
90 words
A stand for a model aircraft having an airscrew comprising: A BASE; A MOTOR FIXED TO SAID BASE; AN AIR OUTLET IN SAID BASE; A FAN DRIVABLY CONNECTED TO SAID MOTOR; AND A DUCT CONNECTING SAID FAN TO SAID AIR OUTLET IN SAID BASE, SAID OUTLET HAVING DIMENSIONS SUCH THAT A STREAM OF AIR CAN BE DIRECTED THROUGH SAID OUTLET AGAINST SUBSTANTIALLY ONLY SAID AIRSCREW; AND LOCATING MEANS ON SAID BASE FOR SO POSITIONING SAID AIRCRAFT ON SAID BASE THAT ONLY SAID AIRSCREW IS POSITIONED IN SAID STREAM OF AIR.
Claim 3
Dependent Claim
19 words
A stand according to claim 1 further comprising: throttle means to control the flow of air into the fan.
Claim 4
Dependent Claim
93 words
A stand for model aircraft comprising: a base; a motor fixed to the base; a fan drivably connected to the motor; at least one duct connecting the fan to an outlet in the base, whereby a stream of air is directed through said duct to said air outlet; an aircraft positioned on said base so that only its airscrew is positioned in said stream of air, and at least one set of depressions in the base to locate the wheels of said aircraft so that said airscrew is positioned over said air outlet.
Claim 5
Dependent Claim
93 words
A stand for model aircraft comprising: a base; a motor fixed to the base; a fan drivably connected to the motor; at least one duct connecting the fan to an outlet in the base, whereby a stream of air is directed through said duct to said air outlet; an aircraft positioned on said base so that only its airscrew is positioned in said stream of air, and at least one set of depressions in the base to locate the wheels of said aircraft so that said airscrew is positioned over said air outlet.
Claim 6
Dependent Claim
84 words
A model aircraft display comprising: a flat base; a motor fixed to the base; a fan drivably connected to the motor; throttle means controlling the air intake to the fan; at least one air duct connecting the fan to an outlet in the base; and at least one set of depressions in the base to locate the wheels of an aircraft so that its airscrew is positioned over an air outlet; and at least one aircraft positioned on the locating depressions of the base.
Claim 7
Dependent Claim
84 words
A model aircraft display comprising: a flat base; a motor fixed to the base; a fan drivably connected to the motor; throttle means controlling the air intake to the fan; at least one air duct connecting the fan to an outlet in the base; and at least one set of depressions in the base to locate the wheels of an aircraft so that its airscrew is positioned over an air outlet; and at least one aircraft positioned on the locating depressions of the base.
Claim 8
Dependent Claim
81 words
A model aircraft display comprising a base, a motor fixed to said base, a fan drivably connected to said motor, at least one air duct connecting the fan to at least one outlet in the base, locating means on said base to locate an aircraft so that its airscrew is positioned over said at least one outlet, at least one aircraft, and cooperating locating means on the aircraft for locating said aircraft with respect to said locating means on said base.
Claim 9
Dependent Claim
81 words
A model aircraft display comprising a base, a motor fixed to said base, a fan drivably connected to said motor, at least one air duct connecting the fan to at least one outlet in the base, locating means on said base to locate an aircraft so that its airscrew is positioned over said at least one outlet, at least one aircraft, and cooperating locating means on the aircraft for locating said aircraft with respect to said locating means on said base.
References Cited (Backward Citations)
US2198509A
Cited
US3083497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |