US PATENT SUBCLASS 126 / 573
.~.~ Including sun position tracking sensor

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

569  DF  SOLAR HEAT COLLECTOR {18}
572  DF  .~ With control means energized in response to actuator stimulated by condition sensor {3}
573.~.~ Including sun position tracking sensor {7}
574  DF  .~.~.~> With computer
575  DF  .~.~.~> With timer
576  DF  .~.~.~> With motor {1}
578  DF  .~.~.~> Electronic sensor
579  DF  .~.~.~> Fluid expansion sensor {1}
581  DF  .~.~.~> Solid expansion sensor
582  DF  .~.~.~> Phase change sensor

DEFINITION

Classification: 126/573

Including sun position tracking sensor:

(under subclass 572) Apparatus including a supporting base wherein the sensing means is adapted to follow the sun and activate structure to move the converting means with respect to the base according to the position of the sun. [figure] [caption]A focusing solar collector which utilizes an elongated parabolic shaped mirror made from a sheet of drapable material so that when draped in a catenary-like curved configuration, the sun's rays may be focused on a linear target which is axially aligned with the axis of the mirror. Means are provided for adjusting the angle of the drape of the catenary-like curve in order to maintain the focus of the sun's rays on the linear target as the relative diurnal positions of the sun to the collector changes. The optimum catenary like curve for the range of the drape angles involved is achieved by using a nonlinear distribution of weight along the cross-section of the draped mirror material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

600, for a device for repositioning of solar collector for optimum radiation exposure without a condition responsive control.

SEE OR SEARCH CLASS

250, Radiant Energy,

203.4, for a tracking system, per se, which may be used for moving a solar collector to follow the sun.

353, Optics: Image Projectors,

3, for a heliostat.