Resources Contact Us Home
Dental handpiece

Image Number 3 for United States Patent #5476380.

A dental handpiece includes an end grip member gripped by an operator during use. The end grip member has a first end to be connected to an air supply and a second end on which is selectively detachably mounted a tool holder supporting a tool that is driven either by a mechanical structure or by an air turbine, depending upon the particular tool holder mounted on the end grip member. Within the end grip member is an air motor, and a first air line extends from the first end to the air grip motor. When the tool holder includes the mechanical structure, then the first air line supplies air to the air motor, thereby to transmit power to the mechanical structure. A second air line extends through the end grip member between the first and second ends thereof. When the particular tool holder mounted on the end grip member includes an air turbine, the second air line supplies air thereto. An adjusting mechanism is mounted on the end grip member to selectively open one of the first and second air lines while closing the other of the second and first air lines.

  Recently Added Patents
Battery loading and unloading mechanism
Output queued switch with a parallel shared memory, and method of operating same
Formwork release composition and use thereof
Methods and systems for enabling community-tested security features for legacy applications
Authenticating messages sent between a vehicle and a central facility
Small molecule inhibitors of kynurenine-3-monooxygenase
Voltage regulators with improved wake-up response
  Randomly Featured Patents
Cardiac pacemaker having a sealed oblong housing
Metric acceleration on dual MAC processor
Abnormal cannabidiols as agents for lowering intraocular pressure
Code generator to produce permutations of code mates
Still video camera for a personal computer
Chair control
Multi-piece solid golf ball
Method for minimizing hydrogen halide corrosion in a partial oxidation process
Method and apparatus for dispersing a sample of particulate material
Touchless stabilizer for processing spherical shaped devices