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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7056396 | Copper/zinc alloys having low levels of lead and good machinability The free-cutting copper alloy according to the present invention contains a greatly reduced amount of lead in comparison with conventional free-cutting copper alloys, but provides industrially satisfactory machinability. The free-cutting alloys comprise 69 to 79 per... | 06/06/2006 |
| 6964713 | Copper base alloy suitable for use as material for sliding member A copper base alloy suitable for use as a material for a sliding member used under severe sliding conditions such as a floating bush bearing of a turbocharger used in automobiles is disclosed. The alloy comprises, by mass %, 15 to 25% Zn, 4.2 to 10% Di, 2 to 7% Mn, ... | 11/15/2005 |
| 6716541 | Material for a metal strip The material for a metal strip for manufacturing electrical contact component parts has, expressed in percent by weight, the following composition: | 04/06/2004 |
| 6632300 | Copper alloy having improved stress relaxation resistance A copper alloy having improved stress relaxation resistance is formed from a copper base alloy that consists, by weight, essentially of 1.8%-3.0% iron, 0.01%-1.0% zinc, 0.001 %-0.25% phosphorus, 0.1 %-0.35% magnesium and the balance is copper and unavoida... | 10/14/2003 |
| 6432556 | Copper alloy with a golden visual appearance There is provided a copper-base alloy useful for coinage that has a golden visual appearance. The material has a transverse electrical conductivity substantially similar to that of copper alloy C713 and when clad to a copper alloy C110 core, a transverse ... | 08/13/2002 |
| 6413330 | Lead-free free-cutting copper alloys A lead-free free-cutting copper alloy having 69 to 79 percent, by weight, of copper; greater than 3 percent, by weight, of silicon; and a remaining percent, by weight, of zinc. The alloy preferable has greater than 3.0 percent and less than or equal to 4.... | 07/02/2002 |
| 6340446 | Nickel-free white copper alloy A nickel-free white copper alloy represented by the general formula: Cua Znb Mnc Ald or Cua Znb Mnc Ald Xe, wherein X is at least one element selected from the g... | 01/22/2002 |
| 5997810 | High-strength copper based alloy free from smutting during pretreatment for plating A high-strength Cu based alloy, consists of: Ni: 0.5 to 2.0%; Sn: 1.2 to 2.5%; Si: 0.04 to 0.1%; Zn: 0.1 to 1%; Mg: 0.0001 to 0.02%; Mn: 0.0001 to 0.1%; P: 0.0001 to 0.02%; and Cu and inevitable impurities: the balance, wherein the total content of Mg, Mn and P is 0.001... | 12/07/1999 |
| 5919322 | Alloy, in particular for use in the manufacture of frames for glass, jewelry, and the like A high-temperature, nickel-free alloy, in particular for spectacle frames, jewelry, etc. With the following composition in percentages by weight: Zn 3.0-7.0% Mn 8.0-13.0% Fe 0.5-3.5% Al 4.5-8.00 Cu the remainder.... | 07/06/1999 |
| 5441696 | Copper-nickel based alloy A copper-nickel based alloy, which comprises 3 to 25 wt % of Ni, 0.1 to 1.5 t % of Mn, 0.0001 to 0.01 wt % of B and the rest being Cu and an unavoidable element.... | 08/15/1995 |
| 5378294 | Copper alloys to be used as brazing filler metals The invention relates to low-nickel copper alloys to be used as brazing filler metals, which alloys also contain phosphorus, tin and possibly small amounts of manganese. The alloys are produced by means of atomization methods. Their advantages are low liq... | 01/03/1995 |
| 5246509 | Copper base alloy superior in resistances to seizure, wear and corrosion suitable for use as material of sliding member A copper base alloy suitable for use as a material of a sliding member, superior in seizure resistance, wear resistance and corrosion resistance. The alloy comprises 1.0 to 3.5 wt % Mn, 0.3 to 1.5 wt % Si, 11.5 to 25 wt % Zn, 5 to 18 wt % Pb and the balan... | 09/21/1993 |
| 4749548 | Copper alloy lead material for use in semiconductor device Copper alloy lead materials used in the fabrication of semiconductor devices such as ICs and LSIs are required to have a tensile strength of 40 kgf/mm2 or more, an elongation of 4% or more, an electrical conductivity of 50% IACS or more, and a ... | 06/07/1988 |
| 4632806 | Copper alloy having high resistance to oxidation for use in leads on semiconductor devices A Cu alloy having high resistance to oxidation for use in leads on semiconductor devices is disclosed. The alloy consists essentially of 7-15 wt % Mn, 10-30 wt % Zn, 0.2-10 wt % Ni, 0.1-3 wt % Al, with the balance being Cu and incidental impurities. Also ... | 12/30/1986 |
| 4587097 | Homogeneous low melting temperature brazing filler metal for joining ferrous and non-ferrous alloys A metal alloy consisting essentially of about 4-16 atom percent manganese, 4-16 atom percent silicon, 0-16 atom percent tin, 0-20 atom percent zinc, 0-10 atom percent silver and about 0-10 atom percent indium, the balance being copper and incidental impur... | 05/06/1986 |
| 4430298 | Copper alloys for electric and electronic devices and method for producing same A copper alloy for electric and electronic devices, comprising: 3.0-3.5 wt % of Ni, 0.5-0.9 wt % of Si, 0.02-1.0 wt % of Mn, 0.1-5.0 wt % of Zn and the balance Cu and the inevitable impurities.... | 02/07/1984 |
| 4049434 | Brazing alloy This invention relates to brazing alloys suitable for use in the fabrication of cutting tools, for example, the brazing of a cutting tip to a shank of a rock drill. One particular brazing alloy in accordance with the invention comprises, apart from impuri... | 09/20/1977 |
| 4015948 | Copper-base solder A copper-base ternary alloy is provided which has a melting point lying between those of so-called hard and soft solders, exhibits excellent mechanical properties and is usable to advantage as a joining material to form mechanically reliable joints. The m... | 04/05/1977 |
| 4003715 | Copper-manganese-zinc brazing alloy A brazing alloy composition is provided for brazing together a ferrous metal part to another part, said alloy comprising about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel (e.g. 0.5% to 10%) and the balance essentially copper ranging... | 01/18/1977 |
| 3972712 | Copper base alloys Copper-base alloys are disclosed which are characterized by unusually low melting points combined with good tensile strength and ductility in the as-cast condition, excellent founding characteristics, high hardness and strength in the as-cast plus heat tr... | 08/03/1976 |
