Paul Engdahl

Person

Costa Mesa, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Ball seat leveler
- Patent number 7,650,901
- Issue date Jan 26, 2010
- Paul Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Earthquake actuated horizontal valve with micro switch
- Patent number 7,152,615
- Issue date Dec 26, 2006
- Paul D. Engdahl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Earthquake actuated micro switch
- Patent number 6,917,004
- Issue date Jul 12, 2005
- Paul D. Engdahl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Earthquake actuated automatic gas shutoff valve
- Patent number RE38220
- Issue date Aug 19, 2003
- Paul D. Engdahl
- 137 - Fluid handling
Information Patent Grant
Earthquake actuated automatic gas shutoff valve
- Patent number 6,213,142
- Issue date Apr 10, 2001
- Paul D. Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Automatic safety shutoff valve
- Patent number 6,112,764
- Issue date Sep 5, 2000
- Engdahl; Paul D.
- Paul D. Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Seismic initiator for earthquake shutoff valves and the like
- Patent number 5,307,699
- Issue date May 3, 1994
- Engdahl; Paul D.
- Paul D. Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Automatic safety shutoff valve
- Patent number 5,209,454
- Issue date May 11, 1993
- Engdahl; Paul D.
- Paul D. Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Intergrating, indicating, and controlling seismometer
- Patent number 5,144,598
- Issue date Sep 1, 1992
- Engdahl; Paul D.
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Earthquake displacement recorder
- Patent number 4,694,304
- Issue date Sep 15, 1987
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Seismic displacement recorder for base-isolated structures
- Patent number 4,684,958
- Issue date Aug 4, 1987
- Engdahl; Paul D.
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Peak accelerograph
- Patent number 4,630,483
- Issue date Dec 23, 1986
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Passive multielement shock recorder
- Patent number 4,223,319
- Issue date Sep 16, 1980
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Peak-recording accelerometer
- Patent number 4,100,807
- Issue date Jul 18, 1978
- Paul D. Engdahl
- G01 - MEASURING TESTING
Information Patent Grant
Peak accelerograph
- Patent number 3,974,504
- Issue date Aug 10, 1976
- Paul D. Engdahl
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Ball seat leveler
- Publication number 20080099071
- Publication date May 1, 2008
- Paul Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Horizontal valve ball seat leveler
- Publication number 20080099072
- Publication date May 1, 2008
- Paul Engdahl
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Paul Engdahl

Person

Patents Grantslast 30 patents

Ball seat leveler

Earthquake actuated horizontal valve with micro switch

Earthquake actuated micro switch

Earthquake actuated automatic gas shutoff valve

Earthquake actuated automatic gas shutoff valve

Automatic safety shutoff valve

Seismic initiator for earthquake shutoff valves and the like

Automatic safety shutoff valve

Intergrating, indicating, and controlling seismometer

Earthquake displacement recorder

Seismic displacement recorder for base-isolated structures

Peak accelerograph

Passive multielement shock recorder

Peak-recording accelerometer

Peak accelerograph

Patents Applicationslast 30 patents

Ball seat leveler

Horizontal valve ball seat leveler