U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5035252

Nicotine Containing Dental Floss

Keep away cavities and cancer at the same time.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 244/99 - Gas release


Subclass of Class 244 - Aeronautics and astronautics
Definition: Devices and arrangements for releasing the buoyant gas from
No. of patents: 15
Last issue date: 04/01/2008


NumberTitleIssue Date
7350749Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments
The invention relates to a mechanism to control the pitch and/or roll and/or center of gravity of a vehicle. The first embodiment is a track-based mass transfer system in which pathways are positioned along or radially terminate at a central horizontal plane of the ...
04/01/2008
5931413Aircraft
An aircraft of the present invention has an envelope used in such an air balloon and/or airship. The aircraft can be in flated continuously to the envelope with supplying an air into the envelope without extending the envelope on the ground, and the envel...
08/03/1999
5653405Balloon venting valves
A venting valve in a hot air balloon comprises a valve member for opening and closing on outlet hole in the balloon envelope, the valve member being in the form of a flat panel having an edge portion secured along a line to a portion of the envelope adjac...
08/05/1997
5584449Generation and control of inflatable balloons
A thermal aircraft, such as a hot air load-carrying balloon which includes a balloon envelope having a deflation aperture therein and a venting valve or operculum designed to removably cover and seal the aperture and to be opened and/or closed rapidly so ...
12/17/1996
5449130Hot air balloon amusement ride
The hot air balloon ride includes a balloon envelope having a basket attached thereto. The balloon is engaged by tether lines extending from grounded weights, the tether lines limiting extent of rise of the balloon. The basket includes an entryway and has...
09/12/1995
5297763Safety balloon apparatus
A balloon member includes a plurality of partition walls coextensive within the balloon to divide the balloon into equal quadrants to accommodate safe descent and enhance inflation of at least a plurality of the quadrants during a leakage of air from the ...
03/29/1994
4836471Navigational vent for hot air balloons
An improved cap valving means for hot air load-carrying balloons which is designed to be opened and/or closed rapidly so as to assist in control of the balloon. The valve and/or vent includes a disc which may be opened by applying a force to a pull cord, ...
06/06/1989
4651956Deflation and control system for hot air balloons
There is disclosed herein a hot air type balloon which includes a balloon envelope having a generally circular top opening and a top cap adjacent the top opening for opening and closing the balloon. The top cap forms both a deflation panel and maneuvering...
03/24/1987
4498408Lifting body for diving
Lifting body for transporting or lifting objects under water, of the type in which the lifting gas has essentially the same pressure as the surrounding mass of water. The lifting body comprises a pressure measuring instrument which provides a depth positi...
02/12/1985
4432513Gas-proof fastening system for a non-rigid airship
A gas leak proof sealing panel system is disclosed for a non-rigid airship such as a gas balloon. The sealing panel system is especially useful as a rip panel for rapid deflation of the airship. The rip panel covers an aperture in an envelope of the airsh...
02/21/1984
4402476Exhaust valve and maneuvering structure for lighter-than-air aircraft
A lighter-than-air (LTA) aircraft having a valve structure affording the rapid removal of the lifting gas. The valve comprises a circular panel sewn within the envelope about an upper opening in the envelope for approximately one-third of its periphery an...
09/06/1983
4280674Balloon with deflation port
A balloon or airship having a hull of flexible material is provided with a deflation opening in the hull and a rigid frame permanently fastened to the edge of the opening. A ring of flexible sheet material has its peripheral edge removably clamped to the ...
07/28/1981
4090682Pressure and hot air relief vents for a pressurized hot air airship
In a hot air airship including an elongate gas envelope aerodynamically shaped for horizontal flight with a pressure hot air generator for pressurizing the envelope and tail members on the envelope, a gondola below the envelope and power driven member for...
05/23/1978
4042192Balloon with deflation and maneuvering ports
A hot air balloon with an adjustable deflation port at its upper end and a maneuvering port on a side region which allows both ports to be selectively opened and closed on the ground and during flight such that positive control of such ports exist by the ...
08/16/1977
4033527Deflation cap for pressurized hot air airship
A hot air airship including an elongate aerodynamic shaped gas envelope carrying a pressure hot air generator system for pressurizing the envelope with heated air during flight with tail members at the aft end of the airship for guiding and directing the ...
07/05/1977
 
Sign InRegister
Username  
Password   
forgot password?