Resources Contact Us Home
Precision drill bit resurfacing tool

Image Number 9 for United States Patent #4411105.

The drill grinder includes a drill bit holder mounted for movement about a swing axis provided by a rocker arm. The swing axis parallels the plane of the grinding wheel. An index ring mounted on the holder provides precise indexing of the drill bit. The extent of micrometric feed movement of the rocker arm is precisely marked so that such movement can be exactly duplicated as to all lip surfaces, thus achieving a symmetrically surfaced drill bit. These structures are integrated in a system that provides simple adjustment for drill bit size, clearance angle and contour control of lip surface.

  Recently Added Patents
Power semiconductor module
Method of inspecting wafer
Methods and systems for optimizing data accesses
Antibodies to Clostridium difficile toxins
Method for producing male sterile plants using plant beclin 1/ATG6 expression
Method and apparatus for supporting delivery, sale and billing of perishable and time-sensitive goods such as newspapers, periodicals and direct marketing and promotional materials
Protecting information written to recording medium
  Randomly Featured Patents
Digital certificate transferring method, digital certificate transferring apparatus, digital certificate transferring system, program and recording medium
Rectifying device
Capsule product containing high dosage of aspirin in powder or granulated form and alkaline tablet or pellet comprising magnesium carbonate, calcium carbonate and a magnesium dry component
Tilt rod support for a Venetian blind
Deep water flotation devices
Multiplex transmission medium for application in multiplex vehicle control systems
Method of producing precast concrete panels with built-in outer sash frames
Methods for separating carbon nanotubes by enhancing the density differential
Servo-controlled feed rate control device for CNC electric spark machines
Photographing apparatus and method of adjusting an image of a photographing object