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Assignee: Aspen Systems, Inc.


Location: Marlborough, MA
No. of patents: 5

NumberTitleIssue Date
6729042Enhancement of fluid replacement in porous media through pressure modulation
A method is described for enhancing mass and heat transport of fluids in a fine pore structure through an appropriate modulation of the fluid pressure. For example, in an air drying process for a porous material that contains liquid, the air pressure is modulated th...
05/04/2004
6222194Fast neutron irradiation of sapphire
Methods of irradiating sapphire with fast neutron radiation to form a sapphire body having high compressive strength at elevated temperature and use thereof in sapphire window assemblies, bearing assemblies, semi-conductor devices, and optical fibers. The...
04/24/2001
6068882Flexible aerogel superinsulation and its manufacture
A thermal insulation is produced by forming aerogels interstitially within a fiber matrix. The resulting composite structures have substantially no fiber--fiber contacts. The insulating product is made by impregnating the fiber matrix with an aerogel form...
05/30/2000
5797729Controlling multiple variable speed compressors
A refrigeration system having a plurality of variable speed compressors, each variable speed compressor operating at a speed substantially the same as the other energized variable speed compressors, the speed being below a maximum speed of the compressors...
08/25/1998
5680120Transportation safety apparatus and method
A transportation safety apparatus and method for the detection of obstacles which lie off the line-of-sight or beyond the field of view of a moving vehicle entails shooting a laser beam through the air from a moving vehicle, capturing the beam and passing...
10/21/1997
 
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