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
Method of targeting hydrophobic drugs to vascular lesions
Method and system for encrypting data in a wireless communication system
Real-time RSL monitoring in a web-based application
Electronic system with vertical intermetallic compound
Method for configuring analog-to-digital converter keys and non-transitory machine readable medium storing program code executed for performing such method
Light irradiation element, image forming structure, and image forming apparatus
Parallel active optical cable
  Randomly Featured Patents
Quick release hopper and improved cylindrical dispensing member for individual cigarette vending machine
Closing member for a ring valve
Method and apparatus for choosing a modulation and coding rate in a multi-user, MIMO communication system
Direct readout dissolved gas measurement apparatus
Video information stand
High-speed electrical interconnects and method of manufacturing
Centrifugal method for filing high aspect ratio blind micro vias with powdered materials for circuit formation
Scanning exposure apparatus and device manufacturing method
Stream selection for enhanced media streaming
URL namespace to support multiple-protocol processing within worker processes