Tip protrusions on lance ignition tube
OwnerMichael F. Harasyminventor
Life of this patent
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Abstract
A thermal lance for unplugging a vessel discharge port. The thermal lance including an elongated cylindrical hollow tube made from a combustible material, the tube having an axial length with first and second ends. The tube having a cylindrical sidewall defined by an outer wall having an outer diameter and an inner wall having an inner diameter, with a wall thickness between the outer and inner walls. The tube having a longitudinal axis. At least one projection is formed integrally on the first end and has a length extending away from the first end in substantially the same direction as the longitudinal axis. A telescoping thermal lance assembly is also disclosing that includes a housing and an extension tube within which the lance is located.
Claims16
A thermal lance for use in unplugging a vessel discharge port, the thermal lance comprising:
- an elongated cylindrical hollow lance tube made from a combustible material, the tube having an axial length with first and second ends, the tube having a cylindrical sidewall defined by an outer wall having an outer diameter and an inner wall having an inner diameter, and the sidewall has a wall thickness between the outer and inner walls, the tube having a longitudinal axis;
- a slice rod located within the inner wall, the slice rod being formed from low carbon steel;
- and
- at least one projection formed integrally on the first end of the lance tube and having a length extending away from the first end in substantially the same direction as the longitudinal axis;
- wherein the first end has a circumference and wherein the at least one projection is a plurality of projections spaced about the circumference, each projection having a thickness along its length from the first end to a tip end of the projection.
A thermal lance for use in unplugging a vessel discharge port, the thermal lance comprising:
- an elongated cylindrical hollow lance tube made from a combustible material, the tube having an axial length with first and second ends, the tube having a cylindrical sidewall defined by an outer wall having an outer diameter and an inner wall having an inner diameter, and the sidewall has a wall thickness between the outer and inner walls, the tube having a longitudinal axis;
- a slice rod located within the inner wall, the slice rod being formed from low carbon steel;
- and
- at least one projection formed integrally on the first end of the lance tube and having a length extending away from the first end in substantially the same direction as the longitudinal axis;
- wherein the at least one projection tapers in thickness along its length from the first end to a tip end of the projection.
Dependencies are inferred from the claim text.