What’s new

August 2026

• patent · 17 May 1983 · added 2 months ago

  Device for desalting brackish water, and a conditioning method and device relating to said desalting device

  Machine transcription of the US4383891A patent scan, 16 pages.

• patent · 2 Jun 1981 · added 2 months ago

  Solar distillation apparatus

  Machine transcription of the US4270981A patent scan, 15 pages.

• patent · 1 Oct 1991 · added 2 months ago

  Solar water distillation system

• patent · 24 Jan 1989 · added 2 months ago

  Fresnel lens concentrator

• patent · 23 Aug 1988 · added 2 months ago

  Fresnel scroll solar tracking device

• patent · 12 Apr 2007 · added 2 months ago

  Control systems for adaptive lens

• patent · 11 Oct 2012 · added 2 months ago

  Sun tracking solar concentrator

• patent · 19 Feb 2014 · added 2 months ago

  Solar energy converter

• patent · 29 Jun 1976 · added 2 months ago

  Solar electrical generating system

  A lens is used to concentrate solar rays to heat an expansible fluid. Energy is extracted from the fluid to drive an electric current generator. The heated fluid may first pass thr...

• patent · 27 Dec 1977 · added 2 months ago

  Low cost solar energy collection system

  A fixed, linear, ground-based primary reflector having an extended curved-sawtooth contoured surface covered with a metallized polymeric reflecting material, reflects solar energy...

• patent · 12 Oct 1976 · added 2 months ago

  Solar furnace

  A solar furnace wherein multiple Fresnel lenses focus light rays upon heat conductors associated with each of the lenses. Each heat conductor has an exposed arcuate portion which s...

• patent · 10 Jul 1973 · added 2 months ago

  Composite lens for an optical communication system providing directly viewed real images

  A Fresnel type lens having a discontinuously sloping stepped surface surrounds a smaller lens of comparable focal length axially aligned therewith but having a continuously sloping...

• patent · 12 Jun 1973 · added 2 months ago

  Optical fluid lens construction

  This invention provides a liquid-filled lens, which incorporates means for causing atmospheric pressure at least partly to counteract the internal pressure arising from the static...

• patent · 5 Nov 1974 · added 2 months ago

  Apparatus for solar distillation

  1. AN APPARATUS FOR THE DISTILLATION OF A LIQUID COMPRISING A SOLAR STILL HAVING IN COMBINATION ONE OR MORE DISTILLAND-RETAINING COMPONENTS, A COVER CAPABLE OF TRANSMITTING RADIANT...

• patent · 4 Sep 1928 · added 2 months ago

  Solar heating apparatus

  Machine transcription of the US1683266 patent scan, 3 pages.

• patent · 18 Apr 1967 · added 2 months ago

  Process and apparatus for solar distillation

  Machine transcription of the US3314862 patent scan, 19 pages.

• patent · 17 Oct 1950 · added 2 months ago

  Plastic lens

  Machine transcription of the US2525921 patent scan, 3 pages.

• patent · 23 Mar 1948 · added 2 months ago

  Headlight and supporting means therefor

  Machine transcription of the US2438196 patent scan, 3 pages.

• patent · 5 Mar 1929 · added 2 months ago

  op chicago

  Machine transcription of the US1704173 patent scan, 5 pages.

• patent · 6 Sep 1921 · added 2 months ago

  Stepped lenticular system for heat and light concentrating to be used on flying-machines

  Machine transcription of the US1390258 patent scan, 4 pages.

• patent · 25 Nov 2010 · added 2 months ago

  Light concentrator, redirector and distributor

• patent · 15 Apr 2010 · added 2 months ago

  Solar heat converter

• patent · 10 Jun 1986 · added 2 months ago

  Solar illumination device

  Machine transcription of the US4593976A patent scan, 14 pages.

• patent · 16 Jan 1990 · added 2 months ago

  Radiant energy collector

• patent · 30 Apr 2013 · added 2 months ago

  Solar collector using subreflector

• patent · 8 Jun 2017 · added 2 months ago

  Integral Collector Storage Solar Water Heater

• patent · 3 Nov 2020 · added 2 months ago

  Integral collector storage solar water heater

• patent · 3 Jun 2014 · added 2 months ago

  Solar-based power generator

• patent · 7 Sep 2021 · added 2 months ago

  Curved surface absorber type solar fluid heater

• patent · 16 Oct 2018 · added 2 months ago

  Solar energy collector apparatus