Back to results
US 4,062,146 AGranted
Shade producing system
AssigneeSimtrac Inc.
InventorsHarold Grossman, Sherman Mandel
Life of this patent
Estimating the term…
Abstract
A shade producing system including a powered track having a novel power driven motor for drawing a shade cloth between a gathered and extended position. The system may include suspension tracks for holding th cloth spread. Splicing means for the powered and suspension tracks are provided for achieving the desired length of extension of the cloth. A novel suspension strip structure is provided on the shade panel for suspending the shade cloth from the tracks.
Claims4
A shade system for shading an area in a greenhouse comprising:
- a. a frame
- b. powered track means comprisng a hollow column and magnetic capsule disposed therein supported by said frame;
- c. suspension track means laterally spaced from, parallel to and coextensive with said power track means and supported by said frame;
- d. a shade producing panel depending from said power track means and said suspension track means, said power track means and said suspension track means each comprising a plurality of sections respectively oriented in end-to-end relationship having further means to maintain said sections in end-to-end abutting engagement thereby extending the effective length of said power track means and said suspension track means respectively, said further means comprising block means adjacent the ends of each of said sections fastened against lengthwise movement and turnbuckle means connected between said block means to hold said sections in abutting engagement.
1 more element
Dependencies are inferred from the claim text.