|6188051||Method of manufacturing a sheathed electrical heater assembly|
A method of manufacturing a sheathed electrical heater assembly comprising the steps of: molding a core element into a desired shape, the core element having an outer surface; heating the core element at an elevated temperature sufficient to release organ...
|4937429||Heated hand grips and method of manufacture|
A heated hand grip is disclosed having an internal sleeve and an external protective jacket where the sleeve is formed with external, helical lands and grooves about which a strand of resistance wire is sewed and anchored snugly. The disclosure includes a...
|4523177||Small diameter radiant tube heater|
Small portable electrical resistance heated radiant heating unit useful for insertion in tube bores to effect localized high temperature heating. Useful for the internal heating of tubes and tube/sleeve assemblies in steam generators, having bores as smal...