Electrically heated wax spatula using a diode as the heating element
AssigneeKV33 Corporation
InventorRonald E. Huffman
Life of this patent
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AssigneeKV33 Corporation
InventorRonald E. Huffman
Estimating the term…
An electrically heated spatula for working heat softenable materials, such as dental wax, includes an elongated hollow sleeve secured at one end to a handle and having a heat producing diode unit supported at the other end. The diode unit includes a hollow metallic cylinder with an apertured metallic end wall. A forward biased diode has a threaded mounting stud disposed in the end wall aperture and is supported in interior of the cylinder in spaced non-contacting relation thereto. The stud extends outwardly of the other end of the sleeve and removably supports a working tip. Power supply conductors extend through the handle and sleeve and are connected to the anode of the diode within the cylinder and to the cathode of the diode through the cylinder, end wall and mounting stud. The arrangement minimizes undesirable transfer of heat from the diode to the cylinder and sleeve and maximizes transfer of heat through the threaded stud to the tip.
An electrically heated spatula for working temperature sensitive material, said spatula being connectable to a source of electrical power, said spatula comprising in combination:
Dependencies are inferred from the claim text.