Erling A. Freudendahl

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Patents Grantslast 30 patents

Information Patent Grant
Valve for control of a fluid flow
- Patent number 10,393,274
- Issue date Aug 27, 2019
- AVK Holding A/S
- Erling Arnum Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Threadless pipe coupling
- Patent number 9,683,688
- Issue date Jun 20, 2017
- AVK Holding A/S
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pipe coupling
- Patent number 7,789,431
- Issue date Sep 7, 2010
- Aage V. Kjaers Maskinfabrik A/S
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrant knock-off combination flow stop and backflow check valve
- Patent number 7,156,119
- Issue date Jan 2, 2007
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Shut-off valve
- Patent number 5,829,734
- Issue date Nov 3, 1998
- Aage V. Kjaers Maskinfabrik A/S
- Erling Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Gate valve
- Patent number 5,279,320
- Issue date Jan 18, 1994
- AVK Maskinfabrik A/S
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
A VALVE
- Publication number 20180100590
- Publication date Apr 12, 2018
- AVK Holding A/S
- Erling Arnum FREUDENDAHL
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
A VALVE ARRANGEMENT, A METHOD FOR IDENTIFYING AN UNDERGROUND VALVE...
- Publication number 20170307103
- Publication date Oct 26, 2017
- AVK Holding A/S
- Erling Arnum FREUDENDAHL
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
THREADLESS PIPE COUPLING
- Publication number 20150084329
- Publication date Mar 26, 2015
- AVK Holding A/S
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Pipe Coupling
- Publication number 20080157522
- Publication date Jul 3, 2008
- Erling Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrant knock-off combination flow stop and backflow check valve
- Publication number 20050155645
- Publication date Jul 21, 2005
- Erling A. Freudendahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...