[특허]Mechanical face seal with elastomeric bellows unit and intermeshing drive bands

[미국특허] Mechanical face seal with elastomeric bellows unit and intermeshing drive bands 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/34
출원번호	US-0822740 (1997-03-25)
우선권정보	GB-0006815 (1996-03-30)
발명자 / 주소	Gilbert James,GBX
출원인 / 주소	John Crane UK Limited, GBX
대리인 / 주소	Davis and Bujold
인용정보	피인용 횟수 : 19 인용 특허 : 4

초록 ▼

Mechanical face seal has a first sealing mounted in fixed axial and rotational relationship and sealed with respect to a housing and a second sealing ring mounted in fixed rotational relationship but movable axially with respect to a shaft. The second sealing ring being sealed with respect to the shaft by means of a bellows unit. One end of the bellows unit being engaged by a first drive band which applies a radial load to the end of the bellows unit forcing it into driving and sealing engagement with the shaft and the other end of the bellows unit being engaged by a second drive band which applies a radial load to the end of the bellows unit forcing it into driving and sealing engagement with the second sealing ring. The inner ends of the drive bands are of equal diameter and have axially extending castellations, the castellations of one drive band intermeshing with the castellations of the other drive band, whereby the drive bands may be telescoped and torsional loads may be reacted between the shaft and the second sealing ring by the ends of the bellows unit and the drive bands. A spring acts between the drive bands to bias them apart and to urge opposed sealing faces of the first and second sealing rings into sealing engagement.

대표청구항 ▼

[ I claim:] [1.] A mechanical face seal for providing a fluid-tight seal between a pair of relatively rotatable components comprising a first sealing ring mounted in fixed axial and rotational relationship and sealed with respect to a first component and a second sealing ring mounted in fixed rotational relationship with respect to a second component, said second sealing ring being sealed with respect to said second component by means of an elastomeric bellows unit, whereby the second sealing ring is movable axially with respect to the second component, a pair of tubular drive bands being mounted coaxially of the bellows unit in axially spaced apart relationship to one another, the outer end of one drive band engaging one end of the bellows unit and applying a radial load thereto forcing it into driving and sealing engagement with said second component and the outer end of the other drive band engaging the other end of the bellows unit and applying a radial load thereto forcing it into driving and sealing engagement with the second sealing ring, the inner ends of the drive bands being of equal diameter and having axially extending castellations, the castellations of one drive band intermeshing with the castellations of the other drive band, whereby the drive bands may be telescoped and torsional loads may be reacted between the second component and the second sealing ring by the ends of the bellows unit and the drive bands, resilient means acting between the drive bands to bias them apart and urge opposed sealing faces of the first and second sealing rings into sealing engagement.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Charhut, Frank J., Face seal.
상세보기
Fone Christopher J. (Reading GBX) Gilbert James (Amersham GBX) Martin Paul (Slough GBX), Mechanical face seals.
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Leonardsson Per-Erik (Rnninge SEX), Seal device.
상세보기
Champlin ; John W., Self-disengaging static seal.
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이 특허를 인용한 특허 (19) 인용/피인용 타임라인 분석

Kuhn, Jonathan L.; Anderson, David A.; Cinbis, Can; O'Brien, Richard J.; Cho, Yong K.; Mullen, Thomas J.; Scheiner, Avram; Katra, Rodolphe P., Absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction.
상세보기
Kuhn, Jonathan L.; Anderson, David A.; Cinbis, Can, Active noise cancellation in an optical sensor signal.
상세보기
Abarca Melo, Ricardo; Guzman Castro, Rodrigo; Quiroz Venegas, Osvaldo, Adjustable mechanical seal.
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Dahlheimer, John C., Bellows face seal assembly.
상세보기
Broadbent, Thomas; Cox, Steven, Component seal.
상세보기
Kuhn, Jonathan L.; Cinbis, Can; Carney, James K., Device and method for monitoring of absolute oxygen saturation and tissue hemoglobin concentration.
상세보기
Kuhn, Jonathan L.; Cinbis, Can; Carney, James K., Device and method for monitoring of absolute oxygen saturation and tissue hemoglobin concentration.
상세보기
Kuhn, Jonathan L.; Cinbis, Can; Carney, James K.; Anderson, David A., Device and method for monitoring of absolute oxygen saturation and total hemoglobin concentration.
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Keller Thomas,DEX ; Reinfrank Ulrich,DEX ; Ries Wolfgang,DEX ; Svejkovsky Reinhard,DEX ; Woppowa Robert,DEX ; Ziegenbein Dieter,DEX, Mechanical face seal device.
상세보기
Borasso, Massimiliano; Ventura, Alessandro; Ferri, Massimiliano, Mechanical seal.
상세보기
Itadani, Masatoshi; Shinomiya, Takashi; Ogawa, Yoshihiro, Mechanical seal.
상세보기
Maruyama, Hideki; Kiryu, Kenji; Ikeda, Yasuhiro; Tani, Kimihiro, Mechanical seal.
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Roddis, Alan James, Mechanical seal.
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Kuhn, Jonathan L., Method and apparatus for post-shock evaluation using tissue oxygenation measurements.
상세보기
Cox, Stephen; Broadbent, Thomas, P04TU drive ring.
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Kuhn, Jonathan L.; Cinbis, Can; Anderson, David A.; Carney, James K., Shock reduction using absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction.
상세보기
Kuhn, Jonathan L.; Cinbis, Can; Anderson, David A.; Carney, James K., Shock reduction using absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction.
상세보기
Anderberg,G철ran, Single seal with resilient member.
상세보기
Cinbis, Can; Carney, James K.; Kuhn, Jonathan L.; Anderson, David A., Tissue oxygenation monitoring in heart failure.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Mechanical face seal with elastomeric bellows unit and intermeshing drive bands 원문보기