US PATENT SUBCLASS 60 / 641.11
.~.~ With elevated structure


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



60 /   HD   POWER PLANTS

641.1  DF  UTILIZING NATURAL HEAT {3}
641.8  DF  .~ Solar {4}
641.11.~.~ With elevated structure {1}
641.12  DF  .~.~.~> Air is working fluid


DEFINITION

Classification: 60/641.11

With elevated structure:

(under subclass 641.8) Apparatus in which the motor or power plant operates at least in part by energy derived either from a substance confined or constrained to move in a desired path by a significant vertically extending man-made structure (e.g., house, chimney, etc.) or from a solar heat receptor mounted on such structure.