| |
 |
|
Class Information
Number: 244/30
Name: Aeronautics > Aircraft, lighter-than-air > Airships
Description: Propelled aeronautical machines sustained by their buoyancy relative to the air.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5147429 |
Mobile airborne air cleaning station |
Sep. 15, 1992 |
| 5110070 |
Rigid airship having ribs and long beams forming a carrier frame |
May. 5, 1992 |
| 5090637 |
Helium purification system for lighter-than-air aircraft |
Feb. 25, 1992 |
| 5071090 |
Airship |
Dec. 10, 1991 |
| 5071383 |
Radio-controlled flying apparatus |
Dec. 10, 1991 |
| 5069290 |
Structure and method of producing foams having hydrogen-filled cells for use in airship/balloon envelopes |
Dec. 3, 1991 |
| 5026003 |
Lighter-than-air aircraft |
Jun. 25, 1991 |
| 4995572 |
High altitude multi-stage data acquisition system and method of launching stratospheric altitude air-buoyant vehicles |
Feb. 26, 1991 |
| 4982915 |
Structure and method of producing foams having hydrogen-filled cells for use in airship/balloon envelopes |
Jan. 8, 1991 |
| 4967983 |
Airship |
Nov. 6, 1990 |
| D309887 |
Air vehicle |
Aug. 14, 1990 |
| 4934631 |
Lighter-than-air type vehicle |
Jun. 19, 1990 |
| 4931028 |
Toy blimp |
Jun. 5, 1990 |
| D307884 |
Air vehicle |
May. 15, 1990 |
| D307131 |
Air vehicle |
Apr. 10, 1990 |
| 4838501 |
Balopod (hybrid flying machine) |
Jun. 13, 1989 |
| 4799629 |
Flying object for collecting solar rays |
Jan. 24, 1989 |
| 4799914 |
Remote control lighter-than-air toy with tether |
Jan. 24, 1989 |
| 4773617 |
Lighter-than-air craft |
Sep. 27, 1988 |
| 4762295 |
Aerostat structure with conical nose |
Aug. 9, 1988 |
| 4711416 |
Steerable lighter than air balloon |
Dec. 8, 1987 |
| 4534525 |
Evacuated balloon for solar energy collection |
Aug. 13, 1985 |
| 4403755 |
Method and apparatus for use in harnessing solar energy to provide initial acceleration and propulsion of devices |
Sep. 13, 1983 |
| 4375280 |
Free wing flyer |
Mar. 1, 1983 |
| 4366936 |
Aircraft having buoyant gas balloon |
Jan. 4, 1983 |
| 4364532 |
Apparatus for collecting solar energy at high altitudes and on floating structures |
Dec. 21, 1982 |
| 4326681 |
Non-rigid airship |
Apr. 27, 1982 |
| 4272042 |
Airship and associated apparatus and method for anchoring same |
Jun. 9, 1981 |
| 4269375 |
Hybrid annular airship |
May. 26, 1981 |
| 4204656 |
Airship control system |
May. 27, 1980 |
| RE30129 |
Amphibious dirigible airships |
Oct. 30, 1979 |
| 4166596 |
Airship power turbine |
Sep. 4, 1979 |
| 4089492 |
Ocean adapted airship |
May. 16, 1978 |
| 4085912 |
Convertible airship |
Apr. 25, 1978 |
| 4082239 |
All electrical self-contained fuel control system for a burner in a thermal airship |
Apr. 4, 1978 |
| 4052025 |
Semi-buoyant aircraft |
Oct. 4, 1977 |
| 4052026 |
Load suspension equalizing thimble |
Oct. 4, 1977 |
| 4046337 |
Hinged control surfaces for pressurized hot air airship |
Sep. 6, 1977 |
| 4038777 |
Airborne, hovering, decorative object, toy or the like |
Aug. 2, 1977 |
| 4033527 |
Deflation cap for pressurized hot air airship |
Jul. 5, 1977 |
| 4032086 |
Aerostats and aquastats |
Jun. 28, 1977 |
| 4032085 |
Dirigible, especially non-rigid dirigible |
Jun. 28, 1977 |
| 4018406 |
Redundant blower drive for pressurized hot air airship |
Apr. 19, 1977 |
| 3972492 |
Airship for transporting gas |
Aug. 3, 1976 |
| 3971533 |
Convertible airship |
Jul. 27, 1976 |
| 3970270 |
Low speed aircraft |
Jul. 20, 1976 |
| 3963198 |
Negative air cushion for airship ground handling |
Jun. 15, 1976 |
| 3945589 |
Amphibious dirigible airships |
Mar. 23, 1976 |
|
|
|
