|
| US4490592 | 4 juin 1982 | 25 déc. 1984 | | Magnetic flow switch |
| US4906807 | 22 nov. 1988 | 6 mars 1990 | Dr. Siebert & Kuhn GmbH & Co. KG | Apparatus for monitoring the flow of fluid media in a pipeline |
| US4928520 | 7 nov. 1989 | 29 mai 1990 | Halliburton Company | Plug release indicator |
| US5283402 | 24 déc. 1992 | 1 févr. 1994 | Hamlin Incorporated | Acceleration sensor with magnetic operated reed switch |
| US5705987 | 22 janv. 1996 | 6 janv. 1998 | AGF Manufacturing, Inc. | Circuit for controlling operation of a load after a predetermined time delay |
| US6114823 | 30 déc. 1997 | 5 sept. 2000 | AGF Manufacturing, Inc. | Circuit and apparatus for sensing fluid flow |
| US6246331 | 18 janv. 2000 | 12 juin 2001 | AGF Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
| US6246333 | 5 janv. 1999 | 12 juin 2001 | AGF Manufacturing, Inc. | Apparatus for sensing fluid flow and associated load control circuit |
| US6396404 | 28 sept. 2000 | 28 mai 2002 | AGF Manufacturing, Inc. | Double check valve assembly for fire suppression system |
| US6643454 | 1 oct. 2002 | 4 nov. 2003 | Alpha-Western Corporation | Bath temperature maintenance heater |
| US7105756 | 21 sept. 2005 | 12 sept. 2006 | Plastic Magen, LP | Flowswitch having reduced number of parts |
| US7299814 | 9 juin 2005 | 27 nov. 2007 | | Method and apparatus for selectively shutting off the flow of water to a building |
| US7299819 | 12 juin 2006 | 27 nov. 2007 | John A. Fenton | Water flow sensor alone and in combination with a method and apparatus for selectively shutting off the flow of water to a building |
