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US 6,293,313 B1Granted
Stainless steel shafts, assemblies and methods of making same
OwnerEdward J. McCrinkinventor
Life of this patent
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Abstract
The invention provides methods of manufacturing hardened stainless steel tubing, pipe, shafts and assemblies. The present inventions also provides stainless steel shafts, tubing, pipe or assemblies reinforced with stainless steel members brazed and hardened within the shafts, tubing, pipe or assemblies.
Claims10
A reinforced stainless steel shaft comprising:
- an air hardened stainless steel tube;
- an air hardened stainless steel reinforcement member;
- and
- brazing material proximal to the intersections of the reinforcement member with the tube, the shaft produced by the method including:
- selecting an air hardenable stainless steel tubing of a predetermined diameter;
- introducing within the tubing an air hardenable stainless steel reinforcement member, a portion of an external surface of which is in contact with the internal surface of the tubing,
- contacting at least one confluence of the tubing and the member with a brazing material;
- introducing the assembly into a controlled atmosphere furnace;
- and
- brazing and hardening the assembly to form hardened and reinforced stainless steel tubing.
7 more elements
Dependencies are inferred from the claim text.