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Valve lockout
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Patent number 11,649,908
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Issue date May 16, 2023
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DeZURIK, Inc.
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Steven K. Neu
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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One-way valve cap
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Patent number 9,822,897
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Issue date Nov 21, 2017
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Matthew Gross
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve operated by a master key
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Patent number 8,585,010
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Issue date Nov 19, 2013
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BMT CO., LTD.
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Jong Chan Yoon
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve operated by a master key
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Patent number 8,418,515
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Issue date Apr 16, 2013
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BMT Co., Ltd.
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Jong Chan Yoon
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hydrant lock
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Patent number 8,353,309
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Issue date Jan 15, 2013
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Joel Embry
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Secure fire hydrant cap
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Patent number 7,797,972
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Issue date Sep 21, 2010
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Flow Security Systems, Inc.
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Mark Nickeas
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Fire hydrant securing arrangements
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Patent number 6,802,338
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Issue date Oct 12, 2004
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Hydra-Shield Manufacturing, Inc.
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Roy Istre
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Fire hydrant security systems
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Patent number 6,089,253
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Issue date Jul 18, 2000
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Hydra-Shield Manufacturing, Inc.
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Henry J. Stehling
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E03 - WATER SUPPLY SEWERAGE
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Lock core service valve
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Patent number 5,046,523
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Issue date Sep 10, 1991
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George Horhota
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Flow control device
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Patent number 4,946,130
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Issue date Aug 7, 1990
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Peter Kooiman
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lock mechanisms
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Patent number 4,723,569
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Issue date Feb 9, 1988
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Ellis (Colchester) Limited
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Alan E. H. Ellis
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Theft-resistant valve
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Patent number 4,699,168
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Issue date Oct 13, 1987
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Mueller Co.
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William L. Hauffe
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Adjustable valve locking system
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Patent number 4,471,801
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Issue date Sep 18, 1984
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Rheinische Armaturenund Maschinenfabrik Albert Sempell
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Erich Lange
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lockable valve for hydraulic system
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Patent number 4,402,339
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Issue date Sep 6, 1983
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Carl H. Owens
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3866446
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Patent number 3,866,446
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Issue date Feb 18, 1975
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3554218
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Patent number 3,554,218
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Issue date Jan 12, 1971
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3109446
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Patent number 3,109,446
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Issue date Nov 5, 1963
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3033016
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Patent number 3,033,016
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Issue date May 8, 1962
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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3002368
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Patent number 3,002,368
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Issue date Oct 3, 1961
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2994503
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Patent number 2,994,503
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Issue date Aug 1, 1961
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2687030
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Patent number 2,687,030
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Issue date Aug 24, 1954
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B60 - VEHICLES IN GENERAL