Exhaust port protective device for an air valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20070246100A1
SERIAL NO

11407871

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a valve assembly (18) of the type having a housing, a pole piece (16) disposed within the housing, and an exhaust port (50), one embodiment of an exhaust port protective device (10) comprises a flow restrictor assembly coupled at least in part to the pole piece (16). The flow restrictor assembly provides fluid flow in a first direction and restricts fluid flow in a second direction.

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Patent Owner(s)

Patent OwnerAddress
NORGREN GT DEVELOPMENT CORPORATION425 C STREET NW AUBURN WA 98001

International Classification(s)

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  • 2006 Application Filing Year
  • F16K Class
  • 863 Applications Filed
  • 571 Patents Issued To-Date
  • 66.17 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2006200720082009201020112012201320142015201620170255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edwards, David Port Orchard, WA 75 916
Stephens, Charles E Seattle, WA 11 135

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Patent Citation Ranking

  • 2 Citation Count
  • F16K Class
  • 5.12 % this patent is cited more than
  • 18 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges364471385287931201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 90100 +0255075100125150175200225250275300325350375400425450475

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