US1987452A - Precious metal alloy composition - Google Patents

Precious metal alloy composition Download PDF

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Publication number
US1987452A
US1987452A US754851A US75485134A US1987452A US 1987452 A US1987452 A US 1987452A US 754851 A US754851 A US 754851A US 75485134 A US75485134 A US 75485134A US 1987452 A US1987452 A US 1987452A
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US
United States
Prior art keywords
precious metal
metal alloy
alloy composition
alloy
composition
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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
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US754851A
Inventor
Norris O Taylor
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SPYCO SMELTING AND REFINING Co
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SPYCO SMELTING AND REFINING CO
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Priority to US754851A priority Critical patent/US1987452A/en
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Expired - Lifetime legal-status Critical Current

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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

Definitions

  • Claim. (CL 75-1) My invention relates to precious metal alloy Among the advantages or my alloy are the 10.1- compositions. It relates more. particularly to lowing: compositions 01' this character for use in wrought 1. It resists oral and atmospheric corrosion. and cast dental work and for use in manuiactur- 2. It melts smoothly and casts easily.
  • An object of the invention in general 3. It is lighter in weight than the conventional 5 is to produce an alloy which has distinct advandental casting, gold alloys. tages ior'such uses and an object in particular is 4. It is of pleasing color. to improve on the composition disclosed and 5.
  • the melting range is in the-same temperaclaimed in my Patent No. 1,965,012, issued July 3, time range asthat of gold alloys commonly used 1934, I in dentistry and is considerably lower than that 10
  • the full objects andadvantages of my invenoi the alloy disclosed in my prior patent above tion will appear in connection with the detailed referred to. description thereof and the novel features oi! the
  • the use of indium is oi. particular importance invention will be particularly pointed out in the in controlling orv improving color, corrosion rel sistance, melting range, hardness, and strength. 15

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dental Preparations (AREA)

Description

Patented Jan. 8, 1935 v v UNITED STATES PATENT OFFIC 1,987,452 morons mar. sum: oourosmon No Drawing. Application November 20, 1934, Serial No. 754,851
1 Claim. (CL 75-1) My invention relates to precious metal alloy Among the advantages or my alloy are the 10.1- compositions. It relates more. particularly to lowing: compositions 01' this character for use in wrought 1. It resists oral and atmospheric corrosion. and cast dental work and for use in manuiactur- 2. It melts smoothly and casts easily.
5 ing jewelry. An object of the invention in general 3. It is lighter in weight than the conventional 5 is to produce an alloy which has distinct advandental casting, gold alloys. tages ior'such uses and an object in particular is 4. It is of pleasing color. to improve on the composition disclosed and 5. The melting range is in the-same temperaclaimed in my Patent No. 1,965,012, issued July 3, time range asthat of gold alloys commonly used 1934, I in dentistry and is considerably lower than that 10 The full objects andadvantages of my invenoi the alloy disclosed in my prior patent above tion will appear in connection with the detailed referred to. description thereof and the novel features oi! the The use of indium is oi. particular importance invention will be particularly pointed out in the in controlling orv improving color, corrosion rel sistance, melting range, hardness, and strength. 15
In carrying out my invention, I utilize the 101- The use of platinum is of importance due to the lowing elements combined in proportions by fact that it assists in controlling the grain struc- NORRIB O. TAYLOR.
weight within the following ranges: ture of the composition so that the material may Per cent be more readily rolled and drawn. Gold zstoss i mum 2 to precious metal alloy composition compoud of Silver H033 from 25 to 0! gold, from 2 to 25% of pallacopper 10w dium, from 10 to 33% oi. silver. from 10 to 25% mdmm %to5 otcopper,trom%to5%oiindium,andiromt 25 Platinum e y 10 to 10% 01 platinum. 25
US754851A 1934-11-26 1934-11-26 Precious metal alloy composition Expired - Lifetime US1987452A (en)

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US754851A US1987452A (en) 1934-11-26 1934-11-26 Precious metal alloy composition

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US754851A US1987452A (en) 1934-11-26 1934-11-26 Precious metal alloy composition

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767391A (en) * 1969-05-19 1973-10-23 Pennwalt Corp Tarnish resistant alloy
US4062676A (en) * 1976-07-06 1977-12-13 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Gold alloy for firing on porcelain for dental purposes
US4266973A (en) * 1979-12-14 1981-05-12 The J. M. Ney Company Tarnish-resistant gold color alloy and dental restorations employing same
US4522783A (en) * 1982-05-14 1985-06-11 Menicucci Gian F Metallic alloys to be used in dentistry
FR2620133A1 (en) * 1987-03-31 1989-03-10 Louyot Comptoir Lyon Alemand New gold-silver-palladium alloy and its use for ceramometallic dental prostheses
US5217685A (en) * 1991-10-03 1993-06-08 The Wilkinson Company Abutment base alloy for jawbone mounted dental implants
US5314109A (en) * 1993-04-26 1994-05-24 Ormco Corporation Brazing alloy and method of brazing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767391A (en) * 1969-05-19 1973-10-23 Pennwalt Corp Tarnish resistant alloy
US4062676A (en) * 1976-07-06 1977-12-13 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Gold alloy for firing on porcelain for dental purposes
US4266973A (en) * 1979-12-14 1981-05-12 The J. M. Ney Company Tarnish-resistant gold color alloy and dental restorations employing same
US4522783A (en) * 1982-05-14 1985-06-11 Menicucci Gian F Metallic alloys to be used in dentistry
FR2620133A1 (en) * 1987-03-31 1989-03-10 Louyot Comptoir Lyon Alemand New gold-silver-palladium alloy and its use for ceramometallic dental prostheses
US5217685A (en) * 1991-10-03 1993-06-08 The Wilkinson Company Abutment base alloy for jawbone mounted dental implants
US5314109A (en) * 1993-04-26 1994-05-24 Ormco Corporation Brazing alloy and method of brazing

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