Back to results
US 7,267,512 B1Granted
Power assisted drill press
OwnerThomas L. Muellerinventor
Life of this patent
Estimating the term…
Abstract
A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utilizes a suction cup and venturi system for attachment of the press to a surface work material. The drill press uniquely allows a person to variably activate the feed cylinder and also activate the drill motor with a single hand.
Claims5
A method for utilizing a power assisted drill press, the steps comprising:
- forming a power assisted drill press having a drill motor, a bit, and a pneumatic feed cylinder capable of moving said drill motor and bit toward a work material;
- and
- connecting an output of an air pressure regulator with said feed cylinder, said air pressure regulator having an activating lever or switch which can be displaced whereby an air pressure supplied from said output and to said feed cylinder increases relative to a displacement of said lever or switch;
- and
- displacing said activating lever or switch of said air pressure regulator substantially proportionally to a desired movement of said bit toward said work material and to a desired force onto said work material;
- and
- activating said drill motor whereby said bit performs work on said work material;
- and
- forcing said bit onto said work material substantially proportionally to a further displacing of said lever or switch of said air pressure regulator;
- and
- releasing said activating lever or switch of said air pressure regulator whereby said cylinder no longer moves said bit toward said surface;
- and
- venting said feed cylinder;
- and
- retracting said bit from said work material;
- and
- activating and releasing said drill motor via an actuation switch;
- and
- mounting said drill motor with a motor frame;
- and
- forming a press frame having a frame support having a first and a second end and a frame base nearest said second end;
- and
- movably mounting said motor frame with said press frame and placing nearest said first end of said frame support whereby said bit is opposite yet substantially pointing toward a plane of said second end;
- and
- forming a gap between said bit and said frame base, said gap allowing said work material to be substantially placed;
- and
- mounting the pneumatic feed cylinder substantially with said press frame, said pneumatic feed cylinder having a moving shaft contacting said drill motor or motor frame and a pneumatic input port whereby applying a pneumatic pressure into said input port creates a force onto said shaft and thereby moves said shaft and said drill motor;
- and
- mounting said pressure regulator substantially with said motor or motor frame and connecting an output port with said input port of said feed cylinder and supplying said pneumatic pressure from said output port of said regulator in a pressure value relative to said activating lever or switch displacement and releasing said lever or switch whereby venting of said pneumatic pressure occurs;
- and
- placing said work material between said bit and said frame base;
- and
- displacing said activating lever or switch whereby said activating of said air pressure regulator occurs and said feed cylinder provides a force between said bit and said work material substantially proportional to said activating lever or switch displacement.
30 more elements
Dependencies are inferred from the claim text.