Method of heat treating cultivating disc, coulter, and seed...

Details Method of heat treating cultivating disc, coulter, and seed... Method of heat treating cultivating disc, coulter, and seed...

2011-03-15

2011-03-15

Yee, Deborah (Department: 1733)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S663000

Reexamination Certificate

active

07905968

ABSTRACT:
Method of heat treating cultivating disc, coulter or grain drill blades made from heat quenched boron steels, such that they can be re-edged and re-sharpened using rollers, and yet retain excellent toughness, hardness and wear characteristics. The invention also includes the cultivating disc, coulter or grain drill blades made from boron steel, which have been heat treated according to the inventive method, such that can be re-edged or sharpened using pinch rollers. The cultivating blades are especially useful in the dry, sandy soils such as found in the wheat growing regions extending from central Kansas down into Texas.

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English abstract of Indian patent 193032, Bhakat A.K. et al., Jun. 26, 2004.

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