Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Material Science
Class Information
Number: 420/86
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Lead, bismuth, selenium, tellurium or calcium containing > Processes > Adding lead
Description: Processes wherein the added elements under subclass 84 includes lead.










Patents under this class:

Patent Number Title Of Patent Date Issued
4892580 Lead-containing additive for steel melts Jan. 9, 1990
4863684 Method and apparatus for adding shot to molten steel Sep. 5, 1989
4806304 Free cutting steel Feb. 21, 1989
4781887 Production of steels containing low melting point metals Nov. 1, 1988
4751047 Method of adding low-melting-point metal to molten steel Jun. 14, 1988
4747584 Apparatus for injecting alloying ingredient into molten metal stream May. 31, 1988
4668310 Amorphous alloys May. 26, 1987
4602949 Method and apparatus for adding solid alloying ingredients to molten metal stream Jul. 29, 1986
4389249 Method for adding ingredient to steel as shot Jun. 21, 1983
4326886 Steel for cold forging having good machinability and the method of making the same Apr. 27, 1982
4244737 Method and alloy for introducing machinability increasing ingredients to steel Jan. 13, 1981
4203763 Method of manufacturing a lead alloy steel and a steel made according to the method May. 20, 1980
4200458 Method for the alloying of a metal melt Apr. 29, 1980











 
 
  Recently Added Patents
Motor with power-generation coil module
Structural plasticity in spiking neural networks with symmetric dual of an electronic neuron
Biomedical electro-stimulator
Pressure-sensitive adhesive composition for optical films, pressure-sensitive adhesive optical film and image display
Visual model importation
Scalable security services for multicast in a router having integrated zone-based firewall
Methods, systems, and products for searching interactive menu prompting systems
  Randomly Featured Patents
In-line microwave warming apparatus
Fuel dispenser housing
Object recognition system
Lifting device for use with drum weighing machine
Hair cosmetic
Portable terminal
Systematic process for creating large numbers of relevant, contextual marginal comments based on existing discussions of quotations and links
Oldham ring of scroll type compressor
Step assembly for t-post, components therefor and methods of making the same
Graphical image processing with levels of user access