Resources Contact Us Home
Sun compass

Image Number 7 for United States Patent #4028813.

A sun compass comprises a base, including a transparent hemisphere, a body movable within the base, and a plate including a dial face movable upon the body. Actuating members are connected to the plate and body for selectively moving the plate relative to the body and moving the body relative to the hemisphere. The actuating members are accessible externally of the hemisphere and include rotatable knobs having scales associated therewith for indicating the amount of movement of the plate and body. A transparent hemispherical top is mounted over the base hemisphere.

  Recently Added Patents
Image forming apparatus
Hypallergenic mosaic antigens and methods of making same
Thermally efficient busway
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Doherty amplifier circuit
Pixel interleaving configurations for use in high definition electronic sign displays
  Randomly Featured Patents
Adaptive polarization diversity system
Systems and methods for switching internet contexts without process shutdown
Bearing material for porous hydrostatic gas bearing and porous hydrostatic gas bearing using the same
Mat pattern control system and method
Semiconductor package
Quinazoline derivatives and pharmaceutical compositions containing them
Machine for receiving and stacking blanks of cardboard or like material of variable shape and format, successively cut out from a continuous web
Tri-level highlight color replenisher
Yieldably reinforced gun grip