Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11473680
APP PUB NO 20200232562A1
SERIAL NO

16842004

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.

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Patent Owner(s)

Patent OwnerAddress
JOHN CRANE INC6400 OAKTON ST MORTON GROVE IL 60053

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kalodimos, Michael G Morton Grove, US 3 13
Kozlowski, Dan Naperville, US 3 17
Niamathullah, Syed Morton Grove, US 4 17
Rasmussen, Darin Merrill Palatine, US 4 10
Steigerwald, Tom Chicago, US 3 17
Wasser, James R Lake Forest, US 11 214

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