Cutting torch arrangement
AssigneeAAI Corporation
InventorPatrick E. Sweeney
Life of this patent
Estimating the term…
Abstract
A cutting torch arrangement is disclosed, including a thermal bar having a metal burner pipe with rod-like metal elements therein and gas passageways formed between these elements. A shroud/ shield is disposed around the thermal bar, with an open shroud/shield end laterally spaced from the thermal bar. A spring-biased feeder assembly and shroud/shield biasing assembly is provided for yieldably urging the thermal bar forward within the shroud/shield and for retaining the shroud/shield against a target. A cluster arrangment of thermal bars is also provided.
Claims12
A cutting torch arrangement comprising
- a thermal bar comprising a burner pipe having combustible rod-like elements extending along a length thereof, with longitudinal gas passageways formed therebetween for feeding of oxygen gas along the interior of said pipe and enabling igniting and burning of one end of said thermal bar,
- and a protective annular shroud/shield longitudinally movably disposed over and along the forward ignitable end of said burner pipe,
- said shroud/shield having an open forward end,
- means for moving said burner pipe forwardly within and toward said open end of said shroud/shield as said bar is burned at said one end,
- a feed pipe,
- securing means for removablyy securing said burner pipe to said feed pipe in gas flow-enabling relation,
- said feed pipe slidable and within and along said shroud/shield, said securing means being disposed within said shroud/shield,
- and a compression spring disposed longitudinally of said burner pipe and having its forward end acting in force-transmitting relation to said shroud/shield for resiliently urging said shroud/shield against a target structure.
A cutting torch arrangement comprising
- a thermal bar comprising a burner pipe having a combustible rod-like elements extending along a length thereof, with longitudinal gas passageways formed thherebetween for feeding of oxygen gas along the interior of said pipe and enabling igniting and burning of one of said thermal bar,
- and a protective annular shroud/shield longitudinally movably disposed over and along the forward ignitable end of said burner pipe,
- said shroud/shield having an open forward end,
- means for moving said burner pipe forwardly within and toward said open end of said shroud/shield as said bar is burned at said one end,
- a feed pipe,
- securing means for removable securing said burner pipe to said feed pipe,
- said feed pipe being forwardly slidable within said shroud/shield,
- and a compression spring disposed longitudinally of said burner pipe and having its forward end acting in force-transmitting relation to said shroud/shield for resiliently urging said shroud/shield against a target structure.
A cutting torch arrangement comprising
- a thermal bar comprising a burner pipe having combustible rod-like elements extending along a length thereof, with longitudinal gas passageways formed therebetween for feeding of oxygen gas along the interior of said pipe and enabling igniting and burning of one end of said thermal bar,
- a feed pipe,
- securing means for removable securing said burner pipe to said feed pipe in gas flow-enabling relation,
- a feeder handle,
- and spring means connected between said feeder handle and said feed pipe for enabling yielding forward feed force application on said thermal bar burner pipe.
Dependencies are inferred from the claim text.