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公开(公告)号:US20210095767A1
公开(公告)日:2021-04-01
申请号:US17120383
申请日:2020-12-14
Applicant: Caterpillar Inc.
Inventor: Bao Feng , Connor J. Haas , Joseph J. Every , Daniel P. Vertenten , John M. Spangler
Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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2.
公开(公告)号:US20170335969A1
公开(公告)日:2017-11-23
申请号:US15160841
申请日:2016-05-20
Applicant: Caterpillar Inc.
Inventor: John M. Spangler , Bao Feng , Daniel P. Vertenten , Connor J. Haas
IPC: F16J15/34
CPC classification number: F16J15/3436 , F16J15/3404 , F16J15/344 , F16J15/3496
Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical and extends along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body. The seal flange projects radially in circumscribing manner from the body to an outer perimeter thereof. The seal flange includes a sealing face having a sealing band, disposed adjacent the outer perimeter of the seal flange, and an inner relieved area, disposed between the sealing band and an inner perimeter of the seal flange. The sealing band is polished by an isotropic finishing process after a layer of coating composition is applied to at least the body. The layer of coating composition is formulated to withstand the isotropic finishing process and to help increase the corrosion resistance of the seal ring.
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3.
公开(公告)号:US10927959B2
公开(公告)日:2021-02-23
申请号:US16287708
申请日:2019-02-27
Applicant: Caterpillar Inc.
Inventor: Bao Feng , Connor J. Haas , Joseph J. Every , Daniel P. Vertenten , John M. Spangler
Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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公开(公告)号:US10442480B2
公开(公告)日:2019-10-15
申请号:US15639015
申请日:2017-06-30
Applicant: Caterpillar Inc.
Inventor: Connor J. Haas , John M. Spangler , Anca I. Marcu
Abstract: A seal having a body defining an inner surface and an outer surface. The seal includes a layer of coating deposited on the body, the layer of coating including a material exhibiting oleophobic and hydrophobic properties for both the inner surface and the outer surface.
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公开(公告)号:US11149857B2
公开(公告)日:2021-10-19
申请号:US17120383
申请日:2020-12-14
Applicant: Caterpillar Inc.
Inventor: Bao Feng , Connor J. Haas , Joseph J. Every , Daniel P. Vertenten , John M. Spangler
Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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6.
公开(公告)号:US20200271229A1
公开(公告)日:2020-08-27
申请号:US16287708
申请日:2019-02-27
Applicant: Caterpillar Inc.
Inventor: Bao Feng , Connor J. Haas , Joseph J. Every
IPC: F16J15/34
Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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公开(公告)号:US20190002044A1
公开(公告)日:2019-01-03
申请号:US15639015
申请日:2017-06-30
Applicant: Caterpillar Inc.
Inventor: Connor J. Haas , John M. Spangler , Anca I. Marcu
CPC classification number: B62D55/0887 , B22F5/106 , B62D55/15 , B62D55/32 , C09D7/61 , C23C28/00 , F16C33/74
Abstract: A seal having a body defining an inner surface and an outer surface. The seal includes a layer of coating deposited on the body, the layer of coating including a material exhibiting oleophobic and hydrophobic properties for both the inner surface and the outer surface.
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