Resources Contact Us Home
Greenhouse structure

Image Number 4 for United States Patent #4014133.

A greenhouse structure for growing vegetables, flowers, and like plants inside under good conditions particularly in the fall, winter, and early spring portions of the year includes a building structure having a rear wall and opposite end walls and a roof defining an enclosed space having an open front side and a closure member movable between an open position and a closed position with the closure member being adapted to close the open front side of the building structure. Power means are operatively connected to the closure member for moving same between the open position and the closed position in response to temperature measurement within the building structure for controlling some growing conditions of the plants.

  Recently Added Patents
Electromagnetic wave absorber
Semiconductor light emitting device, composite light emitting device with arrangement of semiconductor light emitting devices, and planar light source using composite light emitting device
Feeding device with solar cells, working with artificial light sources, for electronic equipments
Wireless charging and communication with wireless communication devices in a communication system
Linear actuator
Device call notification extension
Request packet size reduction
  Randomly Featured Patents
Mold support assembly for heated glass sheet mold
Electronic circuit provided with a digital driver for driving a capacitive load
Heater and heater control with selective power rating
Reverse-graded catalyst systems for hydrodemetalation and hydrodesulfurization
Photographic products and processes
Direct reading inductance meter
Process and an apparatus for producing teas
Method of making lanthanum cerium terbium gadolinium phosphate phosphor
Container filler
Granular drug delivery system