Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8061651 | Airship photocatalytic reactor energy generation, storage, and pipeless transmission systems An energy management system for lighter-than-air vehicles which includes a reactor means for generating energy, storage means for storing the reactants used in the reactor means, and an integrated pipeless reactant and power distribution means. ... | 11/22/2011 |
| 7341224 | Miniature expendable surveillance balloon system A miniature surveillance balloon system is described that can be used in military and public safety situations for real-time observations. They are as small as feasibly possible, low-cost and expendable, and typically are deployed in clusters. Balloons may act indiv... | 03/11/2008 |
| 7302795 | Internal combustion engine/water source system An internal combustion engine system for automotive vehicle wherein liquid water is produced by cooling a portion of exhaust gases at elevated pressure to induce condensation. The use of elevated pressure allows condensation to occur at a higher dew point which is e... | 12/04/2007 |
| 7249733 | Lighter-than-air aircraft including a closed loop combustion generating system and related methods for powering the same A lighter-than-air aircraft includes a gas envelope for containing a buoyant gas, and a propulsion system is carried by the gas envelope. A solar panel is carried by the gas envelope for powering the propulsion system when generating sufficient power. A closed loop ... | 07/31/2007 |
| 6425552 | Cyclical thermal management system A cyclical thermal management system is provided for responding to diurnal heating and nocturnal cooling cycles to maintain a high altitude platform in a geostatic position for long periods of time. The novel cyclical thermal management system utilizes so... | 07/30/2002 |
| 6182924 | Ballast for lighter than air aircraft A lighter than air aircraft has a non-jettisonable ballast comprised of a liquefied lighter than air gas contained within an insulated container. The liquefied gas is vaporized and released into the lift compartment of the aircraft which is at least parti... | 02/06/2001 |
| 6131851 | Apparatus having an energy generating skin as an outer covering The invention relates to an outer covering of an apparatus made of an energy generating skin. The energy generating skin encloses a fuel that is capable of reacting with oxygen in an electrochemical reaction to form electricity and gaseous products. In pr... | 10/17/2000 |
| 6119979 | Cyclical thermal management system A cyclical thermal management system is provided for responding to diurnal heating and nocturnal cooling cycles to maintain a high altitude platform in a geostatic position for long periods of time. The novel cyclical thermal management system utilizes so... | 09/19/2000 |
| 5890676 | Airship with neutral buoyancy fuel bladder A neutral buoyancy fuel bladder uses hydrogen and oxygen to power an airship. The neutral buoyancy fuel bladder includes a fuel cell, electrolyzer, and means for storing hydrogen, oxygen and water. The fuel cell uses the hydrogen and oxygen to create heat... | 04/06/1999 |
| 5348254 | Long period floating airship An airship of semirigid type including hydrogen which floats for a long period of time without supplying energy, and is for example in use for a relay station or a wide range observatory station. The airship is powered by a solar cell battery in the dayti... | 09/20/1994 |
