US3848313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction armature with friction and magnetic linings
Assignee: Centre National de la Recherche Scientifique
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Filing: 1971-05-18
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Granted: 1974-11-19
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Expires: 1991-05-18
Abstract
Abstract A friction lining according to the inventon is formed of bounded solidified previously molten particles formed on its support by plasma deposition; the base planes 0001 of a major proportion of the crystals in said lining are oriented in directions substantially parallel to the friction surfaces; the materials of which said linings are formed contain metals, metallic oxides or carbides having high melting points; they include cobalt, magnesium, neodymium, titanium, tungsten under its hexagonal form, yttrium, nickel under its hexagonal form, MoC, Mo2C, NbC, Nb2C, Ta2C, WC, W2C, V2C, Cr2O3, TiO2; they may contain under an alloyed form proportions of non hexagonal materials, including molybdenum, chromium, aluminum, copper, iron, the non hexagonal nickel, niobium, B4C, TaC, TiC, Cr3C2, VC, ZrC, ZrO2, Al2O3, which do not affect the hexagonal structure of the alloys obtained.
Inventors
- 👤 J Guyonnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:49
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/127; B; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; C; C23; C23C; C23C4/00; C23C4/02; C23C4/04; C23C4/06; C23C4/12; C23C4/134; C23C4/137; C23C4/18; F16D69/00; F16D69/02; F16D69/027; F16D69/04; F16D2069/0425; F16D2069/0491; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076; Y10T428/12083; Y10T428/12139; Y10T428/12451; Y10T428/12465
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
FRICTION ARMATURE COMPRISING AN ANNULAR SUPPORT AND A LINING FORMED ON ITS SURFACE, THE LATTER INCLUDING AT LEAST ONE ANNULAR PROJECTION AND THE LINING INCLUDING A FIRST LAYER MADE OF A MAGNETIC MATERIAL COVERING THE WHOLE ANNULAR SURFACE INCLUDING THE ANNULAR PROJECTION AND BEING EXPOSED ON THE LINING SURFACE ABOVE SAID PROJECTING ANNULAR PORTION, AND A SECOND LAYER OF A FRICTION MATERIAL EXPOSED AT THE SURFACE OF SAID LINING ABOVE THE REMAINING PORTIONS OF SAID SUPORTION, AND A FACE FLUSH WITH THE EXPOSED PORTION OF THE FIRST LAYER, THE CRYSTALS OF THE MATERIAL OF THE SECOND LAYER BELONGING TO THE CRYSTALLINE HEXAGONAL SYSTEM WITH A MAJOR PROPORTION OF THEIR BASE PLANES 0001 SUBSTANTIALLY ORIENTED IN DIRECTIONS PARALLEL TO THE LINING SURFACE.
Claim 2
Dependent Claim
121 words
FRICTION ARMATURE COMPRISING AN ANNULAR SUPPORT AND A LINING FORMED ON ITS SURFACE, THE LATTER INCLUDING AT LEAST ONE ANNULAR PROJECTION AND THE LINING INCLUDING A FIRST LAYER MADE OF A MAGNETIC MATERIAL COVERING THE WHOLE ANNULAR SURFACE INCLUDING THE ANNULAR PROJECTION AND BEING EXPOSED ON THE LINING SURFACE ABOVE SAID PROJECTING ANNULAR PORTION, AND A SECOND LAYER OF A FRICTION MATERIAL EXPOSED AT THE SURFACE OF SAID LINING ABOVE THE REMAINING PORTIONS OF SAID SUPORTION, AND A FACE FLUSH WITH THE EXPOSED PORTION OF THE FIRST LAYER, THE CRYSTALS OF THE MATERIAL OF THE SECOND LAYER BELONGING TO THE CRYSTALLINE HEXAGONAL SYSTEM WITH A MAJOR PROPORTION OF THEIR BASE PLANES 0001 SUBSTANTIALLY ORIENTED IN DIRECTIONS PARALLEL TO THE LINING SURFACE.
Claim 3
Dependent Claim
55 words
Friction armature according to claim 1, wherein said crystals are formed of particles whose sizes range from about 10 to about 75 microns and wherein the base planes 0001 of more than 80 percent of the crystals are oriented in directions substantially parallel to the surface of the support on which said lining is formed.
Claim 4
Dependent Claim
19 words
Friction lining according to claim 2, wherein said crystals have sizes ranging from about 20 to about 40 microns.
Claim 5
Dependent Claim
59 words
Friction armature according to claim 1, wherein the support comprises one interior and one exterior concentric annular projecting zones, said first layer being exposed at the surface of the lining above said annular projecting portion and said second layer being exposed at said lining surface above the portion of said support which separates said interior and exterior projecting portions.
Claim 6
Dependent Claim
50 words
Friction armature according to claim 1, wherein the material of said first layer consists of an iron-cobalt-nickel alloy and wherein said second layer consists of an alloy of cobalt alloyed to at least one of the components selected from the class consisting of CW, CW2, Cr2O3, Cr3C2, Cr and Mo.
References Cited (Backward Citations)
US2925896A
Cited
US3091022A
Cited
US3221853A
Cited
US3305326A
Cited
US3419415A
Cited
US3466243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |