Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Switchgear and method for operating switchgear
Repeating frame battery with joining of cell tabs via welded-on male and female slip-fit connectors
Reoccuring keying system
Systems and related methods of user-guided searching
Proximity-based mobile message delivery
Endotracheal tube
Catalysts and process for producing aldehydes
  Randomly Featured Patents
Method and slide-casting machine for the casting of hollow pre-cast units of concrete
Focus detecting optical device utilizing two plane parallel plates
Tapping T for plastic pipe
Lightweight audio system for automotive applications and method
Nutrient barrier polysaccharide compositions and method of use
Method and system for multi-currency escrow service for web-based transactions
System initialization of microcode-based memory built-in self-test
Fastener for connectors
Clip-on compass
Method for manufacturing a printhead of ink jet printing apparatus