Portable device for precision plasma and oxy-fuel torch cutting
OwnerJerry Prusekinventor
Life of this patent
Estimating the term…
Abstract
A portable device for precision plasma and oxy-fuel torch cutting is provided. Versions of an example portable cutting torch tool guide the gun of a cutting torch to make precision linear cuts or curved cuts in a metal workpiece. In an implementation, the device is a gun for a cutting torch, with an integrated rail follower and adjustable vertical and horizontal offsets from a workpiece. The cutting torch tool may use various kinds of rails for stable cuts, with optional movement damping, motorized drive, servos for vertical and horizontal offset, and remote control with user interface.
Claims17
An apparatus for a toolkit of portable handheld tools, comprising:
- a rail follower for moving along a cam to guide a cutting torch for cutting a workpiece;
- a vertical plate adjustably attached to the rail follower for holding a horizontal chassis member at selectable vertical heights from the workpiece;
- the horizontal chassis member adjustably attached to the vertical plate for holding a gun of the cutting torch at an adjustable horizontal offset from the vertical plate, the horizontal chassis member having a longitudinal axis disposed in parallel with a linear instance of the cam or tangential to a curved instance of the cam at a current cutting position on the workpiece;
- wherein the cam comprises a rack of geared teeth;
- wherein the rail follower comprises a geared interface with the cam;
- and
- wherein the rail follower comprises a geared damping mechanism to regulate a speed of the gun of the cutting torch across the workpiece.
A portable device for precision plasma and oxy-fuel torch cutting of a workpiece, comprising:
- a horizontal chassis member adjustably attached to a vertical plate along pins attached at a right angle to the vertical plate, the pins allowing adjustment of a horizontal offset between the horizontal chassis member and the vertical plate;
- a first gun holder attached to the horizontal chassis member, the first gun holder comprising a first screw clamp to secure a front part of a gun of a plasma cutter or of an oxy-fuel torch to the horizontal chassis member;
- a second gun holder attached to the horizontal chassis member, the second gun holder comprising a second screw clamp to secure a different part of the gun to the horizontal chassis member, wherein the second gun holder is vertically higher from the workpiece to be cut than the first gun holder;
- the vertical plate comprising third screw clamps for locking the gun at a selected vertical height from the workpiece to be cut;
- a rail follower adjustably interfacing with the vertical plate;
- a sliding interface between the rail follower and the vertical plate;
- the third screw clamps and slotted openings of the rail follower to secure the vertical plate at a fixed vertical offset with respect to the rail follower;
- and
- the rail follower to ride on a guide rail, a cam, or a track placed on the workpiece to be cut.
Dependencies are inferred from the claim text.