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US4155432A Expired / Lapsed US ⏱️ 0.0 years remaining

Rigid segmented brake disk

Assignee: Goodyear Aerospace Corp
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Filing: 1977-08-24
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Granted: 1979-05-22
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Expires: 1997-08-24
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Abstract

Abstract A friction segmented brake disk has a plurality of arcual segments which are rigidly fastened together by a tongue extending from at least one end portion of the segment and is received by an adjacent segment recess and fastened thereto by at least two fastening members. The tongue, recess, and fastening members all reside by the periphery of each arcual segment, substantially beyond the swept area of each segment to avoid the thermal expansion and contraction forces inherent to the swept area. In another embodiment, a rigid friction brake disk contains a plurality of arcual segments which have a slot in each end portion thereof. A clip engages the slots and is connected thereto by a fastening member. Similarly, the clip, slot and fastening members will reside on the periphery of each arcual segment, substantially beyond or outside the swept area of each segment, and thereby also minimizes thermal expansion and contraction forces inherent to the swept area.

Inventors

  • 👤 Walter J. Krause

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 06:51
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/027; F16D65/00; F16D65/02; F16D65/12; F16D65/121; F16D65/125; F16D65/126; F16D2065/13; F16D2065/1304; F16D2065/1312

Claims Analysis

Total Claims: 33
Claim 1
Independent Claim 179 words
A segmented brake disk, comprising; a plurality of segments, a gap existing between said segments, said segments having two end portions, a periphery, and a width, said segments having a tongue and a swept area, said tongue having an axial width less than said segment width, said tongue extending from one of said segment end portions, said swept area having inherent high thermal expansion and contraction forces, a recess having an axial width less than said segment width, said recess located in said remaining segment end portions, said tongue residing in said recess, said tongue located at said periphery of one of said end portions substantially outside said swept area on said segment, said recess located at said periphery of said remaining end portion substantially outside said swept area on said segment, and at least two separate fastening means for securing each said tongue to each said segment end portion having said recess to form a rigid connection substantially outside said swept area of said segment so that said connection is outside said high thermal expansion and contraction forces.
Claim 2
Dependent Claim 179 words
A segmented brake disk, comprising; a plurality of segments, a gap existing between said segments, said segments having two end portions, a periphery, and a width, said segments having a tongue and a swept area, said tongue having an axial width less than said segment width, said tongue extending from one of said segment end portions, said swept area having inherent high thermal expansion and contraction forces, a recess having an axial width less than said segment width, said recess located in said remaining segment end portions, said tongue residing in said recess, said tongue located at said periphery of one of said end portions substantially outside said swept area on said segment, said recess located at said periphery of said remaining end portion substantially outside said swept area on said segment, and at least two separate fastening means for securing each said tongue to each said segment end portion having said recess to form a rigid connection substantially outside said swept area of said segment so that said connection is outside said high thermal expansion and contraction forces.
Claim 3
Dependent Claim 21 words
A segmented brake disk according to claim 1, wherein the shape of said recess corresponds to the shape of said tongue.
Claim 4
Dependent Claim 15 words
A segmented brake disk according to claim 1, wherein said disk is made from metal.
Claim 5
Dependent Claim 18 words
A segmented brake disk according to claim 1, wherein said disk is made from a carbon composite material.
Claim 6
Dependent Claim 26 words
A segmented brake disk according to claim 1, wherein said carbon composite material is made from a laminate of a carbon-based material and a carbon cloth.
Claim 7
Dependent Claim 17 words
A segmented brake disk according to claim 5, wherein said carbon-based material is pyrolized coal tar pitch.
Claim 8
Dependent Claim 14 words
A segmented brake disk according to claim 1, wherein said disk is a rotor.
Claim 9
Dependent Claim 29 words
A segmented brake disk according to claim 1, wherein said gap between said segments is formed by the combination of said segments having groove portions on each end portion.
Claim 10
Dependent Claim 35 words
A segmented brake disk according to claim 8, wherein said groove portions are located at least closer to said segment end portion than the points where said fastening means secures said tongue to said recess.
Claim 11
Dependent Claim 21 words
A segmented brake disk according to claim 8, wherein the shape of said recess corresponds to the shape of said tongue.
Claim 12
Dependent Claim 34 words
A segmented brake disk according to claim 8, wherein said tongue is located in the central axial portion of said segment and said groove is located in the central axial portion of said segment.
Claim 13
Dependent Claim 17 words
A segmented brake disk according to claim 9, wherein said fastening means are rivets or spot welds.
Claim 14
Dependent Claim 107 words
A segmented brake disk according to claim 1, wherein said tongue has a radial surface, a curvilinear portion and an inwardly tapered surface, said tongue radial surface being contiguous with said curvilinear portion and said curvilinear portion being contiguous with said inwardly tapered surface, said recess having a radial portion, a curvilinear portion, and an inwardly tapered surface, said recess radial surface being contiguous with said curvilinear portion and said curvilinear portion being contiguous with said inwardly tapered surface, and at least two separate fastening means for securing each said tongue to each said segment end portion having said recess to form a rigid segmented brake disk.
Claim 15
Dependent Claim 220 words
A segmented brake disk, comprising; a plurality of segments, said segments having two end portions, a periphery, and a width, each said end portion having a groove portion, a gap existing between said segments, each said segment end portion having a slot, an axial width, and a swepth area, said slot located at said periphery of and entirely within said axial width of said end portion substantially outside said swept area on said segment, said slot having an axial width less than and entirely within said segment width, and having a radial height, said swept area having inherent thermal expansion and contraction forces, a clip, said clip having a radial height and having an axial width less than said segment width, said clip having one end residing in one said slot, and the other end residing in said slot on an adjacent said segment, at least two separate fastening means for securing each end of each said clip to said segment peripheral end portions having one said slot to form a rigid connection outside said swept area of said segment so that said connection is substantially outside said thermal expansion and contraction forces, and said groove portions being located at least closer to said segment end portion than the points where said fastening means secures said clip to said slot.
Claim 16
Dependent Claim 220 words
A segmented brake disk, comprising; a plurality of segments, said segments having two end portions, a periphery, and a width, each said end portion having a groove portion, a gap existing between said segments, each said segment end portion having a slot, an axial width, and a swepth area, said slot located at said periphery of and entirely within said axial width of said end portion substantially outside said swept area on said segment, said slot having an axial width less than and entirely within said segment width, and having a radial height, said swept area having inherent thermal expansion and contraction forces, a clip, said clip having a radial height and having an axial width less than said segment width, said clip having one end residing in one said slot, and the other end residing in said slot on an adjacent said segment, at least two separate fastening means for securing each end of each said clip to said segment peripheral end portions having one said slot to form a rigid connection outside said swept area of said segment so that said connection is substantially outside said thermal expansion and contraction forces, and said groove portions being located at least closer to said segment end portion than the points where said fastening means secures said clip to said slot.
Claim 17
Dependent Claim 41 words
A segmented brake disk according to claim 14, wherein the shape of said slot corresponds to the shape of said clip and said end portions have an expansion and assemblage clearance between said slot radial height and said clip radial height.
Claim 18
Dependent Claim 15 words
A segmented brake disk according to claim 14, wherein said disk is made from metal.
Claim 19
Dependent Claim 18 words
A segmented brake disk according to claim 14, wherein said disk is made from a carbon composite material.
Claim 20
Dependent Claim 24 words
A segmented brake disk according to claim 17, wherein said carbon composite material is a laminate of a carbon-based material and a carbon cloth.
Claim 21
Dependent Claim 17 words
A segmented brake disk according to claim 18, wherein said carbon-based material is pyrolized coal tar pitch.
Claim 22
Dependent Claim 14 words
A segmented brake disk according to claim 14, wherein said disk is a rotor.
Claim 23
Dependent Claim 29 words
A segmented brake disk according to claim 14, wherein said gap between said segments is formed by the combination of said segments having groove portions on each end portion.
Claim 24
Dependent Claim 21 words
A segmented brake disk according to claim 14, wherein the shape of said slot corresponds to the shape of said clip.
Claim 25
Dependent Claim 42 words
A segmented brake disk according to claim 14, including a central axial portion of said segment wherein said slot is located in said central axial portion of said segment and said clip is located in said central axial portion of said segments.
Claim 26
Dependent Claim 17 words
A segmented brake disk according to claim 23, wherein said fastening means are rivets or spot welds.
Claim 27
Dependent Claim 107 words
A segmented brake disk according to claim 14, wherein said clip has a radial surface, a curvilinear portion and an inwardly tapered surface, said clip radial surface being contiguous with said curvilinear portion and said curvilinear portion being contiguous with said inwardly tapered surface, said slot having a radial portion, a curvilinear portion, and an inwardly tapered surface, said slot radial surface being contiguous with said curvilinear portion and said curvilinear portion being contiguous with said inwardly tapered surface, and at least two separate fastening means for securing each said clip to each said segment end portion having said slot to form a rigid segmented brake disk.
Claim 28
Dependent Claim 16 words
A segmented brake disk according to claim 1, wherein said carbon-based material is pyrolized petroleum pitch.
Claim 29
Dependent Claim 15 words
A segmented brake disk according to claim 1, wherein said carbon-based material is pyrolized polyacrylonitrile.
Claim 30
Dependent Claim 16 words
A segmented brake disk according to claim 1, wherein said carbon-based material is pyrolized furan resin.
Claim 31
Dependent Claim 16 words
A segmented brake disk according to claim 18, wherein said carbon-based material is pyrolized petroleum pitch.
Claim 32
Dependent Claim 15 words
A segmented brake disk according to claim 18, wherein said carbon-based material is pyrolized polyacrylonitrile.
Claim 33
Dependent Claim 16 words
A segmented brake disk according to claim 18, wherein said carbon-based material is pyrolized furan resin.

References Cited (Backward Citations)

US2610719A Cited
US3483953A Cited
US3718210A Cited
US3698519A Cited
US3730320A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-05-21 1982-11-20 1983-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-05-21 1986-11-20 1987-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-05-21 1990-11-20 1991-05-22 $7700.00 Window Closed / Lapsed

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