Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Metal Working Gold-colored-acid-and-corrosion-resistant-alloy

 Fluid flow diverter
We claim: 1. A fluid diverter comprising: a. housing means, b. separator means for separating said ...


 Pressure accumulator
Having thus described the invention and illustrated its use, what is claimed as new and is desired ...


 Storage tank with liquid insulator for storing cryogenic fluids using water displacement
According to the present invention there is provided a novel improved system for storing a ...


 Volatile liquid storage system
According to one aspect of the invention, a volatile liquid storage and emissions control apparatus ...


 Fluid seal apparatus
To this end, the piston in the apparatus of the invention has a cavity opening out into the first ...


 Process and an arrangement for producing a supporting body for a catalytic reactor
The invention relates to a process and an arrangement for producing a supporting body for a ...


 Resistance adjusting type heater and catalytic converter
Accordingly, an object of the present invention is to provide a resistance adjusting type heater ...


 Catalytic converter with metallic carrier and method for producing same
It is an object of the present invention to provide an improved catalytic converter including a ...


 Core for an electrically heatable catalytic converter
OF THE INVENTION As indicated above, the present invention is a novel arrangement and structure ...


 Catalytic converter with electrically resistive catalyst support
It is therefore an object of the present invention to provide a catalyst support which has a ...


 Gold-colored, acid and corrosion resistant alloy

Details
Inventors: Davitz, Daniel;
Assignee:
Primary Examiner: Rutledge; L. Dewayne
Assistant Examiner: Hey; David A.
Attorney, Agent or Firm: Ellis; Garrettson

A gold-colored, acid and corrosion resistant alloy is disclosed, usable for jewelry, dental purposes and the like. The alloy consists essentially of 15 to 20 weight percent of indium, 7 to 20 weight percent of copper, 5 to 15 weight percent of palladium, and from 0 to 10 weight percent of gold, with the balance consisting essentially of silver and optionally minor amounts of ingredients such as oxide scavengers and the like.

DETAILED DESCRIPTION That which is claimed is: 1.
A gold-colored, acid and corrosion-resistant alloy which consists essentially of 15 to 20 weight percent of indium, 7 to 20 weight percent of copper, 5 to 15 weight percent of palladium, and from 0 to 10 weight percent of gold, the balance consisting essentially of silver.
2.
The alloy of claim 1 in which said balance does not exceed 65 weight percent of the alloy.
3.
The alloy of claim 1 in which from 0.
1 to 1.
5 weight percent of zinc is present to seve as an oxide scavenger.
4.
The alloy of claim 1 in which from 0.
05 to 1 weight percent of an agent is present selected from the group consisting of boron and calcium boride.
5.
The alloy of claim 4 in which no more than 0.
5 percent of said agent is present.
6.
The alloy of claim 1 which contains, by weight, 16 to 18 percent of indium, 12 to 15 percent of copper, and 55 to 60 percent of silver.
7.
The alloy of claim 1 in which from 55 to 60 percent by weight of silver is present.
8.
The alloy of claim 1 which contains 16 to 18 percent of indium.
9.
The alloy of claim 1 which contains 10 to 15 weight percent of copper.
10.
The alloy of claim 1 which contains from more than 3 to 8 weight percent of gold.
11.
The alloy of claim 1 which contains from 1 to 3 weight percent of gold.
12.
The alloy of claim 11 which contains from 9 to 11 weight percent of palladium.
13.
A dental alloy for bridges, fillings, and the like which consists essentially of from 15 to 20 weight percent of indium, from 7 to 17 weight percent of copper, and from 9 to 11 weight percent of palladium, and from 1 to 8 weight percent of gold, the balance consisting essentially of silver.
14.
The dental alloy of claim 13 in which from 0.
1 to 15 weight percent of zinc is present to seve as an oxide scavenger.
15.
The dental alloy of claim 14 in which from 0.
05 to 0.
5 weight percent of an agent is present selected from the group consisting of boron and calcium boride.
16.
The dental alloy of claim 15 which contains, by weight, 16 to 18 percent of indium, 12 to 15 percent of copper, and 50 to 60 percent of silver



Related patents
  Nickel-chromium-silicon alloy brazing foil
OF PREFERRED EMBODIMENTS For a better understanding of the present invention, together with the other and further objects, advantages and capabilities thereof, ...
  Preparation of III-V materials by reduction
The following detailed description relates to a method of producing III-V compounds and solid solutions by the reduction of a salt. The complex salt referred to herein ...
  Useful product derived from grapefruit pulp and process for preparing the same
What is claimed is: 1. A process for preparing an organic composition which comprises contacting the pulps of grapefruit with a non-toxic polyhydric alcohol to form a ...
  Apparatus for growing GaAs single crystal by using floating zone
OF THE PREFERRED EMBODIMENTS The present invention will hereunder be described with respect to the preferred embodiments by referring to the accompanying drawings. FIG. ...
  Method of producing frozen surimi and product thereof
OF THE INVENTION The present invention relates to a method of producing frozen surimi which comprises mixing 0.5 to 15 parts by weight of reduced hydrolyzed starch with ...
  Double valve anti-leak system for thermal regeneration incinerators
Sets of two (series) valves are provided in the inlets and/or outlets of incineration systems using thermal regeneration principles. In another form, pressurized and ...
  Mill recirculation system
What is claimed is: 1. In a direct fired system operative for purposes of effecting the pulverization and subsequent firing of solid fuels, said direct fired system ...
  Rotary plug valve
It is a primary object of this invention to provide a plug valve having a plurality of openings into a central cavity space, circumferentially around the cavity, and to ...
  Method and apparatus for drying and processing moisture-containing solids
We claim: 1. An energetically cross-linked process for the drying and thermal processing of moisture containing solids comprising the steps of: (a) heating the moisture ...
  Check valves
What is claimed is: 1. A diaphragm-less and spring-less check valve for gaseous media comprising an inlet housing (41) having an elastic sealing edge (51), and outlet ...

0.044

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved