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US Patent 9581256 Valve flapper spring stop mechanism

Patent 9581256 was granted and assigned to Hamilton Sundstrand on February, 2017 by the United States Patent and Trademark Office.

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Patent Citations Received
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US Patent 11841087 Watertight check valve
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Patent abstract

A check valve with a housing and a first flapper rotatable about an axis between open and closed positions includes a first spring mechanism operatively positioned between a static component and the first flapper. When the first flapper is in the closed position there is a distance between the first spring mechanism and either the static component or the first flapper.

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Patent Inventor Names
Michael R. Barone0
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=095812560
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US Patent 09581256 Valve flapper spring stop mechanism US Patent 9581256 Valve flapper spring stop mechanism

Infobox
Patent Number
095812560
Patent Number
95812560
Edits on 24 Sep, 2022
"Entity importer update"
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edited on 24 Sep, 2022
Infobox
Is a
Patent
Patent
0
Patent Applicant
Hamilton Sundstrand
Hamilton Sundstrand
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Current Assignee
Hamilton Sundstrand
Hamilton Sundstrand
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
095812560
Date of Patent
February 28, 2017
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Patent Application Number
143260800
Date Filed
July 8, 2014
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=095812560
Patent Primary Examiner
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Craig Schneider
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Edits on 15 Jun, 2022
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=09581256
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 US Patent 09581256 Valve flapper spring stop mechanism

Infobox
Is a
Patent
Patent
Patent applicant
Hamilton Sundstrand
Hamilton Sundstrand
Current assignee
Hamilton Sundstrand
Hamilton Sundstrand
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
09581256
Date of patent
February 28, 2017
Patent application number
14326080
Date Filed
July 8, 2014
Patent primary examiner
‌
Craig Schneider

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