Mechanical seal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4294453
SERIAL NO

06136368

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A mechanical seal suitable for providing a seal to a shaft sealing section of a rotary machine, particularly of the type operating under high speed and high pressure conditions, including a stationary retainer for holding a stationary sealing element, resilient means and recoil preventing means, a seal housing secured to the stationary retainer in a manner to surround the stationary sealing element, and an inwardly projecting portion formed in the seal housing to prevent axial movement of the stationary sealing element which might otherwise be caused by the biasing force of the resilient means when the mechanical seal is assembled or disassembled. The parts of the mechanical seal can be attached to the casing or detached therefrom as a unit.

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First Claim

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Patent Owner(s)

  • HITACHI, LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inouye, Hiroshi Ibaraki, JP 14 776
Sato, Eiichi Ibaraki, JP 109 1791

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