US2198400A - Precious metal alloy - Google Patents
Precious metal alloy Download PDFInfo
- Publication number
- US2198400A US2198400A US261318A US26131839A US2198400A US 2198400 A US2198400 A US 2198400A US 261318 A US261318 A US 261318A US 26131839 A US26131839 A US 26131839A US 2198400 A US2198400 A US 2198400A
- Authority
- US
- United States
- Prior art keywords
- precious metal
- metal alloy
- alloy
- weight
- formulated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000923 precious metal alloy Inorganic materials 0.000 title description 4
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
Definitions
- This invention relates generally to alloys but more particularly to a precious metal alloy for use in the dental art.
- Another object of the invention is the provi- 10 sion of a precious metal casting alloy which can be soldered to, repaired or adjusted, and which has been especially formulated for the making of castings where economy is essential and dependability necessary.
- a still further object is to provide an alloy of this character which is economical in use, which is light in weight, and which is strong and resilient.
- This improved precious metal alloy has been 90 especially formulated and developed for the casting of articles used in the dental profession, such for example as partial dentures, bars, clasps, saddles, etc., and which material requires no special equipment or technique for handling.
- the alloy is composed primarily or predominantly of silver, palladium, and copper and a relatively small percentage of gold and zinc.
- the alloy is composed of the following elements in substantially the portions indicated:
- Zin 1 The alloy formulated from the above-named elements, and in substantially the proportions indicated, is of exceptionally light weight, being approximately one-third lighter in weight than alloys heretofore used for similar purposes and it 5 is strong and resilient. It is platinum in color, it casts clean and dense, and it has the further property that it can be readily repaired or adjusted, and can be soldered to. Furthermore, it is inexpensive and particularly adaptable for the 10 1 making of dental castings where economy and 27% of palladium, about 14% of copper, about 25 I 2% of gold, and about 1% of zinc.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Dental Preparations (AREA)
Description
Patented Apr. 23, 1940 UNITED STATES PATENT OFFICE No Drawing. Application March 11, 1939, Serial No. 261,318
1 Claim.
This invention relates generally to alloys but more particularly to a precious metal alloy for use in the dental art.
It has for one of its objects to provide a light- 5 weight, precious metal alloy of this character which is so formulated that it requires no special equipment or technique for its handling, and which casts clean and dense.
Another object of the invention is the provi- 10 sion of a precious metal casting alloy which can be soldered to, repaired or adjusted, and which has been especially formulated for the making of castings where economy is essential and dependability necessary.
A still further object is to provide an alloy of this character which is economical in use, which is light in weight, and which is strong and resilient.
This improved precious metal alloy has been 90 especially formulated and developed for the casting of articles used in the dental profession, such for example as partial dentures, bars, clasps, saddles, etc., and which material requires no special equipment or technique for handling.
25 To this end, the alloy is composed primarily or predominantly of silver, palladium, and copper and a relatively small percentage of gold and zinc. In its preferred embodiment the alloy is composed of the following elements in substantially the portions indicated:
Zin 1 The alloy formulated from the above-named elements, and in substantially the proportions indicated, is of exceptionally light weight, being approximately one-third lighter in weight than alloys heretofore used for similar purposes and it 5 is strong and resilient. It is platinum in color, it casts clean and dense, and it has the further property that it can be readily repaired or adjusted, and can be soldered to. Furthermore, it is inexpensive and particularly adaptable for the 10 1 making of dental castings where economy and 27% of palladium, about 14% of copper, about 25 I 2% of gold, and about 1% of zinc.
REGINALD V. WILLIAMS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US261318A US2198400A (en) | 1939-03-11 | 1939-03-11 | Precious metal alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US261318A US2198400A (en) | 1939-03-11 | 1939-03-11 | Precious metal alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2198400A true US2198400A (en) | 1940-04-23 |
Family
ID=22992774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US261318A Expired - Lifetime US2198400A (en) | 1939-03-11 | 1939-03-11 | Precious metal alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2198400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389370A (en) * | 1981-05-06 | 1983-06-21 | Skalabrin Nicholas J | Low gold content dental alloy |
| US20080095659A1 (en) * | 2006-10-19 | 2008-04-24 | Heru Budihartono | White precious metal alloy |
-
1939
- 1939-03-11 US US261318A patent/US2198400A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389370A (en) * | 1981-05-06 | 1983-06-21 | Skalabrin Nicholas J | Low gold content dental alloy |
| US20080095659A1 (en) * | 2006-10-19 | 2008-04-24 | Heru Budihartono | White precious metal alloy |
| US7959855B2 (en) | 2006-10-19 | 2011-06-14 | Heru Budihartono | White precious metal alloy |
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