[특허]Non-contact labyrinth seal assembly

[미국특허] Non-contact labyrinth seal assembly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-011/02 F16J-015/447
출원번호	US-0195205 (2014-03-03)
등록번호	US-8864139 (2014-10-21)
발명자 / 주소	Greca, Gerald A. Black, Alicia
출원인 / 주소	Federal-Mogul Corporation
대리인 / 주소	Stearns, Robert L.
인용정보	피인용 횟수 : 1 인용 특허 : 44

초록 ▼

A non-contact labyrinth seal assembly includes a carrier having cylindrical outer flange with an annular leg extending inwardly therefrom. An elastomeric body is attached to the leg. The body has a first pair of seal lips extending radially inwardly in diverging relation from one another and a second pair of seal lips spaced radially outwardly from the first pair of seal lips. The second pair of seal lips includes radially outermost and a radially innermost seal lips. The radially outermost seal lip has a cylindrical inner surface and an inner surface of the radially innermost seal lip has a first portion extending substantially parallel to the cylindrical inner surface to form an annular channel and a second portion extending radially outwardly to an innermost lip free end that is radially aligned with the cylindrical inner surface to form an annular opening having a width less than a width of the channel. A sleeve has an annular barrier extending radially outwardly to an annular flange that extends axially through the opening into the channel.

대표청구항 ▼

1. A non-contact labyrinth seal assembly, comprising: an outer rigid metal carrier having a generally cylindrical outer flange extending axially relative to a central axis of said assembly with a leg extending radially inwardly from said outer flange toward said central axis;an elastomeric body attached to said leg, said body having a first pair of seal lips extending radially inwardly from said leg and diverging away from one another to first free ends to form a v-shaped annular pocket, and a second pair of seal lips spaced radially outwardly from said first pair of seal lips, said second pair of seal lips including a radially outermost seal lip and a radially innermost seal lip, said radially outermost seal lip having a cylindrical inner surface extending axially in substantially parallel relation with said central axis to a free end, said radially innermost seal lip having a first inner surface portion and a second inner surface portion, said first inner surface portion extending substantially parallel to said cylindrical inner surface of said radially outermost seal lip to form an annular channel having a first width, said second inner surface portion extending radially outwardly from said first inner surface portion toward an air side of said assembly to a free end, said free end of said innermost lip being radially aligned with and radially spaced from said cylindrical inner surface of said radially outermost seal lip to form an annular opening, said annular opening having a reduced width relative to said annular channel; anda sleeve having a cylindrical wall and an annular barrier extending radially outwardly from said cylindrical wall to a radially outwardmost end and having an annular flange extending axially from said radially outwardmost end through said annular opening into said annular channel. 2. The non-contact labyrinth seal assembly of claim 1 wherein said outermost seal lip extends axially beyond said innermost seal lip. 3. The non-contact labyrinth seal assembly of claim 2 wherein said free end of said outermost seal lip is substantially radially aligned with said annular barrier. 4. The non-contact labyrinth seal assembly of claim 1 wherein said outermost seal lip overhangs said exclusion flange. 5. The non-contact labyrinth seal assembly of claim 1 wherein said annular barrier is planar.

이 특허에 인용된 특허 (44) 인용/피인용 타임라인 분석

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Dickerson Marvella (Simpsonville SC) Piper Douglas E. (Greenville SC), Composite shield jacket for electrical transmission cable.
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Morris, David Drew, Fire resistant conduit insert for optical fiber cable.
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Peach Samuel O. (Saltillo MS), Idler roller bearing and seal.
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Garrison Stephen N. (Anderson SC), Labyrinth type rotary seal with intermittent feature of contact type seal.
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Andrews Mark A. ; Miles James B., Layered composite high performance fabric.
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Hood, Charles Robin; Wells, Donald G.; Gold, Mark N., Low torque seal assembly.
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Allen Jerry L., Method and apparatus for dividing a conduit into compartments.
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Weil Thomas L. (Elverson PA), Multilayer flexibility resilient thermal shielding sleeves.
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Krabec James A. (Chicago IL) Kincaid John W. (Batavia IL) Miller Paul B. (Richmond IN), Multiply shielded coaxial cable with very low transfer impedance.
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Lattime, Scott B.; Dillon, Kevin M.; Black, Alicia; Borowski, Richard; Trentman, Roger; Brister, Stephen E.; Meadows, Carl F.; Hupp, Brian M.; Toth, David G., Non-contact labyrinth seal assembly and method of construction thereof.
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Walther William D. (Kettering OH), Reusable seals with double shell mountings.
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Marcello Pinto,ITX ; Alberto Visconti,ITX, Rolling contact bearing sealing device.
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Hartman Hendrikus G. (Maartensdijk NLX) Labrie Cornelis (Nieuwegein NLX) Leijenhorst Jan (Hendrick Ido Ambacht NLX) Rietveld Adrianus (Nieuwegein NLX), Seal for an axle bearing.
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Carrigan ; Erwin R., Seal for self-aligning bearing.
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Otto Dennis L., Seal with bi-modulus lip.
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Heinzen Stephen R. (Morton Grove IL), Sealing device.
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Matsushima Noboru (Fukushima JPX) Wada Noriyuki (Fukushima JPX), Sealing device.
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Matsushima Noboru (Fukushima JPX) Wada Noriyuki (Fukushima JPX), Sealing device.
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Katzensteiner Josef R. (Passau DEX), Sealing-modular construction.
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Hatch,Frederick R.; Cibor,Matthew J.; Toth,David M.; Krimmer,Ronald J., Shaft seal.
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Otto Dennis L. (Malvern OH), Shielded seal assembly.
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Otto Dennis L. (Malvern OH) Chandler Jon A. (Brighton MI) Abbruzzi Joseph A. (Waterford MI) Baker Mark E. (Massillon OH), Two component bearing seal with bumpers.
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Black David D. (Elgin IL) Vering Anthony W. (Arlington IL), Unitized grit seal with removable thrust bumper.
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Messenger Edward J. (Longview TX) Fedorovich George (Longview TX), Unitized seal with unitizing joint remote from seal lip.
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이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

Wang, Sheng-Huang; Huang, Shin-Chieh, Wheel hub seal.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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[미국특허] Non-contact labyrinth seal assembly 원문보기

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이 특허에 인용된 특허 (44) 인용/피인용 타임라인 분석

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[미국특허] Non-contact labyrinth seal assembly 원문보기

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이 특허에 인용된 특허 (44) 인용/피인용 타임라인 분석

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