Resources Contact Us Home
Unitary spring armature for a dot matrix printer

Image Number 2 for United States Patent #4771689.

An elongated unitary spring armature is disclosed for use in dot matrix printers. The spring armature has an elongated triangular shape with attachment means located adjacent to the base and means for securing the impact tip located adjacent to the apex. A spring portion formed of a high carbon steel is located adjacent to the attachment means and an armature portion formed of a low carbon steel separates the spring portion from the apex. Processes for making the spring armature are also disclosed.

  Recently Added Patents
PLL circuit
Enhancement of semiconducting photovoltaic absorbers by the addition of alkali salts through solution coating techniques
Printing system, information processing apparatus, print job processing method, information processing method, program, and storage medium
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
Apparatus and method for scrolling a screen of a portable terminal having a touch screen
  Randomly Featured Patents
Covering of an interior element of a motor vehicle equipped with an airbag and method for producing such a covering
Fence with mesh panels
Variable venturi type carburetor
Cache control circuitry and method therefor
MOS transistor and method of manufacturing the same
Collaspe resistant center feed roll and process of making thereof
Yarn clamp
Pre-treatment methods and compositions for carbon dioxide dry cleaning
Digital photo album
Tuned cladding fiber amplifier and laser