The archive
Everything the archive has gained lately, newest first. Also as a feed for whatever you read feeds with.
patent · · added 2 months ago
In a system for converting heat energy to mechanical energy, a working fluid is vaporized and then permitted to expand in an expander. The vaporized working fluid is introduced to...
patent · · added 2 months ago
A system for the mining of geothermal energy in which a plurality of geothermal wells radiate from a single surface site into a subsurface geothermal reservoir. The wells can be dr...
patent · · added 2 months ago
A freezing-warming apparatus cell which operates on a liquid convection principle in part, as well as by means of a mechanical propeller mounted in the cell. Circulation of the hea...
patent · · added 2 months ago
A cooling water storage system includes two water storage ponds, one pond being located at a higher elevation than the other. The water temperature in the lower pond is reduced by...
patent · · added 2 months ago
Thermal pollution from industrial manufacturing and electric generation plants is avoided by incorporating in the water cooling system of such plants an underground water storage a...
patent · · added 2 months ago
Hydraulic fracturing is used to interconnect two or more holes which penetrate a previously dry geothermal reservoir, and to produce within the reservoir a sufficiently large heat-...
patent · · added 2 months ago
There is disclosed a method for abstracting geothermal heat from depths below ground that are inaccessible by commercially practicable bore hole drilling techniques. More particula...
patent · · added 2 months ago
A flight of steps, stairs and the like heated by means of a heating medium passing through a pipe means located within the steps, stairs etc. The pipe means is located totally with...
patent · · added 2 months ago
Methods and systems for storing large volumes of gas, such as natural gas and the like, as commonly received from pipelines or tankers, in deep underground cavities under near-crit...
patent · · added 2 months ago
Machine transcription of the US3492461 patent scan, 8 pages.
patent · · added 2 months ago
A reverse cycle refrigeration system having an indoor heat exchanger, an outdoor heat exchanger, a refrigerant compressor, and reversing valve means for selectively operating the s...
patent · · added 2 months ago
An apparatus for controlling the temperature of a heat exchange medium in a reverse cycle heat pump system includes within a closed heat exchange medium recirculating path thermost...
patent · · added 2 months ago
Several heat storage modules may be connected by manifold means to one or more water holding tanks. The heat storage modules may be connected either in parallel or series to water...
patent · · added 2 months ago
Machine transcription of the US3411574 patent scan, 3 pages.
patent · · added 2 months ago
Machine transcription of the US3348883 patent scan, 6 pages.
patent · · added 2 months ago
1. An underwater vehicle including apparatus for generating steam for propelling same, comprising; A. A CLOSED THIN WALL CONTAINER HAVING A VOID SPACE AT ITS UPPER END, B. A MELTAB...
patent · · added 2 months ago
Machine transcription of the US2793509 patent scan, 6 pages.
patent · · added 2 months ago
Machine transcription of the US3217791 patent scan, 7 pages.
patent · · added 2 months ago
Machine transcription of the US3392530 patent scan, 4 pages.
patent · · added 2 months ago
Machine transcription of the US2724954 patent scan, 4 pages.
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