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
Vehicle seating system and method for reducing fatigue with changing actuator movement
Manufacturing process for cellular screening substratum, resultant substratum, and method and apparatus for screening
Method of adenoviral vector synthesis
Display screen with graphical user interface
1,3-diiodohydantoin compound and production method thereof
Inverter, NAND gate, and NOR gate
Shallow trench media
  Randomly Featured Patents
Dry etching method
Somatostatin analogs
BH55 hyaluronidase
Equine Neospora isolate and its uses
Bar stool
System for protecting the weights of dumbbells through slide-on protector caps
Reinforcement for composite material and composite material using the same
Low-voltage bobbin for preventing sockets from displacing
Golf swing training device
Urgent call displaying method for a radio paging receiver