Resources Contact Us Home
Artificial Christmas tree

Image Number 2 for United States Patent #4805075.

An artificial Christmas tree having a hollow tree trunk and a plurality of branches. Each branch has a connector for attaching it to the tree trunk. Each connector includes a pair of electrical contacts connected to electric lamps disposed in the branch with the electrical contacts engaging a mating pair of electrical contacts in the tree trunk when the branch is attached thereto. Electrical power is supplied to the lamps from a conventional household electrical power source through an electrical circuit inside of the hollow tree trunk interconnecting the mating electrical contacts.

  Recently Added Patents
Maize variety inbred PH1CD7
Composite materials comprising aggregate and an elastomeric composition
Assigning runtime artifacts to software components
Method and apparatus for reducing power consumption used in communication system having time slots
Flat panel display device and stereoscopic display device
Electrowetting display devices with a reflective plate structure
Di and tri- substituted oxathiazine derivatives, method for the production, method for the production thereof, use thereof as medicine and drug containing said derivatives and use thereof
  Randomly Featured Patents
Air compressor
Central connectible yarn brake mechanism
Method for manufacturing semiconductor device that uses laser ablation, to selectively remove one or more material layers
System and process for purifying waste water which contains nitrogenous compounds
System for updating and outputting speech data
Semiconductor integrated circuit device, data recording device, and layout method for semiconductor integrated circuit device
Controller for allocation of processor resources and related methods
Oxidation and sinter-resistant metal powders and pastes
Image forming device having replacement units mounted thereto