Plumber's heat shield
OwnerKeith Sharrowinventor
Life of this patent
Estimating the term…
Abstract
A plumber's heat shield comprises an arcuate preferably metallic shell attached to a spring-clamp by means of an obedient shaft which enables the heat shield to be moved to any position relative to the spring-clamp. The arcuate shell is preferably formed from aluminum or other material having high infrared reflectivity. The obedient shaft is preferably formed from helically-wound steel spring outer sheath surrounding a ductile copper wire core. The spring steel outer sheath prevents the ductile copper wire core from being bent at too sharp of a radius (which would cause the ductile core to work-harden and fracture) while at the same time protecting the ductile copper wire core from the open-flame of the soldering torch.
Claims14
A plumber's heat shield comprising:
- a clamp having a jaw opening to greater than 1½ inches;
- a heat shield member comprising an arcuate shell formed from a material having high infrared reflectivity and low affinity for tin-lead and lead-free soldering alloys, the heat shield member having a concave surface, the concave surface having a radius of curvature of at least 1 inch;
- the heat shield member being free of windows made of a solid transparent or semi-transparent material;
- and
- an obedient shaft, said obedient shaft comprising an elongate member having a longitudinal axis, a proximal end and a distal end, the proximal end of said obedient shaft including a first termination rigidly attached to the clamp, the distal end of said obedient shaft including a second termination attached to said heat shield member, the obedient shaft comprising a flexible outer sheath surrounding a longitudinally-disposed single-strand ductile wire core.
Dependencies are inferred from the claim text.