US896341A - Filament for incandescent lamps. - Google Patents
Filament for incandescent lamps. Download PDFInfo
- Publication number
- US896341A US896341A US23261804A US1904232618A US896341A US 896341 A US896341 A US 896341A US 23261804 A US23261804 A US 23261804A US 1904232618 A US1904232618 A US 1904232618A US 896341 A US896341 A US 896341A
- Authority
- US
- United States
- Prior art keywords
- filament
- incandescent lamps
- nitrid
- cerium
- lamps
- 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
- 229910052684 Cerium Inorganic materials 0.000 description 5
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/04—Incandescent bodies characterised by the material thereof
- H01K1/08—Metallic bodies
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
Definitions
- nitrrd of cerium constitutes the preferable embodimentof my invention- I may, in place thereof, use the 'nitrids of other rare earth'metals such as yttrium or lanthanum.
- a filament for incandescent lamps formed substantially of'a nitrid of a rare earth metal.
- a filament for incandescent lamps formed of nitrid of cerium.
- An illuminant formed substantiallf% of a nitrid of an element having a high a nity for nitrogen at high tern eratures.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Hydrogen, Water And Hydrids (AREA)
Description
UNITED STATES PATENT .OFFIOE.
WILLIS R. WHITNEY, OF SGHENECTADY, NEW YORK, ASSIGNOR T0 GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
FILAMENT FOR INGANI JESCENT LAMPS.
To all whom it may concern: Be it known that I, WILLIS R. WHITNEY, a citizen of the United States, residing at Schenectady, county of Schenectady, State 'of New York have invented certain new and useful Improvements in Filaments for 'Incandescent Lamps, of which the following is a s ecification. Y
he metal cerium, when at a red-heat, has the remarkable pure nitrogen an ereby forming a nitrid which hasa metallic luster and is a good electrical conductor. In this reaction, the compound being exothermic, an enormous heat 1s generated which makes the mass undergoing reaction glow with a brilliancy equal to the are light. As the elements remain combined in this heat, the nitrid of cerium is stable at excessively high temperatures andis with difficulty fusible. From this nitrid of cerium I form the incandesci'ng element or illuminant of incandescent or similar lamps by compressing the very finely powdered material mixed with paraflin, into-rods Specification of Letters Patent. Application filed November 14, 1904. Serial No. 232,618. 1
rolperty of reacting with a suitable binder, as' or filaments. These are Patented Aug. 1a, 1908.
then heated to their sintering oin t by passher e ectric current ing' through them a hi than they are to carry W en'in use. a
Although the nitrrd of cerium constitutes the preferable embodimentof my invention- I may, in place thereof, use the 'nitrids of other rare earth'metals such as yttrium or lanthanum.
What I claim as new and desire to secure by Letters Patent of the United States, is,
1. A filament for incandescent lamps formed substantially of'a nitrid of a rare earth metal.
f 2. A filament for incandescent lamps formed of nitrid of cerium.
3. An illuminant formed substantiallf% of a nitrid of an element having a high a nity for nitrogen at high tern eratures.
In witness whereof, have hereunto set my hand'this 12th day of November, 1904.
WILLIS R. WHITNEY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23261804A US896341A (en) | 1904-11-14 | 1904-11-14 | Filament for incandescent lamps. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23261804A US896341A (en) | 1904-11-14 | 1904-11-14 | Filament for incandescent lamps. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US896341A true US896341A (en) | 1908-08-18 |
Family
ID=2964768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US23261804A Expired - Lifetime US896341A (en) | 1904-11-14 | 1904-11-14 | Filament for incandescent lamps. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US896341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832672A (en) * | 1953-09-16 | 1958-04-29 | Norton Co | Process for the manufactur of boron nitride |
| US3242006A (en) * | 1961-10-03 | 1966-03-22 | Bell Telephone Labor Inc | Tantalum nitride film resistor |
-
1904
- 1904-11-14 US US23261804A patent/US896341A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832672A (en) * | 1953-09-16 | 1958-04-29 | Norton Co | Process for the manufactur of boron nitride |
| US3242006A (en) * | 1961-10-03 | 1966-03-22 | Bell Telephone Labor Inc | Tantalum nitride film resistor |
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