Cool cut cast saw blade

摘要

The present invention is a device and method for manufacturing such a device which is a significant and non-obvious improvement over previous methods of removing plaster or fiberglass casts used for medical treatment. Current cast saw blades create enough heat through friction to burn patients upon the removal of a plaster of fiberglass cast. This device is an improved cast saw blade design which substantially reduces the risk of thermal burns to patients during the process of removing plaster or fiberglass medical casts. The present invention includes a saw blade design which inhibits a rise in the surface temperature of the cast saw blade during use by using a core material (i.e., Gallium) within the blade, the core material having a lower melting temperature than the blade material, as a heat sink.

主权项

1. A saw blade for a saw, comprising:
a cover of a first material having a first generally planar surface and a first raised edge with a serrated outer edge; and a dish member of said first material having a second generally planar surface and a second raised edge, the cover configured to fit over and to be fused to the dish member to define a sealed chamber between the first and second generally planar surfaces configured to enclose and contain a volume of a second material different than the first material, wherein the second material has a lower melting point temperature than the first material such that the volume of the second material transitions from a solid to a liquid and operates as a heat sink as the saw blade heats up during use, thereby inhibiting a rise in temperature of the first and second generally planar surfaces and the serrated outer edge while operating the saw.