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
Simulant material for primary explosives
Method and device for checking the electrical insulation as well as a method and system for producing photovoltaic modules
X-ray imaging apparatus and method of X-ray imaging
Interrupt techniques
Active reduction of electric field generated by a transmit antenna via an auxillary antenna structure
Systems and methods for enabling otherwise unprotected computing devices to assess the reputations of wireless access points
System and method for providing a market-backed annuity with variable segment terms and automatic rollover
  Randomly Featured Patents
Ice machine
Systems and methods of using IQ modulation for calibration or measurement
Nicotine containing soft gelatin pastilles
Microwave oven
Aerosol discriminator for particle discrimination
Organo-Lewis acid as cocatalyst for cationic homogenous metallocene Ziegler-Natta olefin polymerizations
Weapon stock pouch for holding a magazine
Candle stand in combination with a fountain
Amorphous silicon photovoltaic devices and method of making same