|
| US4386552 | 9 févr. 1981 | 7 juin 1983 | | Power cylinder with internally mounted position indicator |
| US4523514 | 29 mars 1984 | 18 juin 1985 | Deere & Company | Position sensing cylinder |
| US4549124 | 14 févr. 1983 | 22 oct. 1985 | Kaltenbach & Voigt GmbH & Co. | Circuit arrangement for controlling the action of an adjusting device, in particular for a patient chair |
| US4552055 | 6 juin 1983 | 12 nov. 1985 | Prince Manufacturing Company | Power cylinder with internally mounted position indicator |
| US4656457 | 3 oct. 1985 | 7 avr. 1987 | WABCO Westinghouse Steuerungstechnik GmbH | Position-sensing potentiometer arrangement |
| US4664239 | 8 août 1985 | 12 mai 1987 | Applied Power Inc. | System for disabling, enabling and otherwise controlling vehicle functions based upon continuous measurement of clutch wear and clutch position |
| US4700610 | 16 sept. 1985 | 20 oct. 1987 | Hoerbiger Ventilwerke Aktiengesellschaft | Cylinder tube strain measurement feedback for piston position control |
| US4803318 | 7 janv. 1988 | 7 févr. 1989 | | Proximity switch for a cylinder |
| US4844685 | 3 sept. 1986 | 4 juil. 1989 | Clark Equipment Company | Electronic bucket positioning and control system |
| US4879440 | 13 déc. 1988 | 7 nov. 1989 | | Proximity switch for a cylinder |
| US4964779 | 17 avr. 1989 | 23 oct. 1990 | Clark Equipment Company | Electronic bucket positioning and control system |
| US4982652 | 19 mai 1989 | 8 janv. 1991 | | Fluid operated actuator with recessed position sensor and recessed end cap fastener |
| US5182979 | 2 mars 1992 | 2 févr. 1993 | Caterpillar Inc. | Linear position sensor with equalizing means |
| US5241278 | 29 juin 1992 | 31 août 1993 | Caterpillar Inc. | Radio frequency linear position sensor using two subsequent harmonics |
| US5325063 | 11 mai 1992 | 28 juin 1994 | Caterpillar Inc. | Linear position sensor with means to eliminate spurians harmonic detections |
| US5367944 | 1 juil. 1993 | 29 nov. 1994 | FANUC Robotics North America, Inc. | Sensor for use in a fluid transfer system |
| US5438274 | 23 déc. 1991 | 1 août 1995 | Caterpillar | Linear position sensor using a coaxial resonant cavity |
| US5491422 | 14 mars 1995 | 13 févr. 1996 | Caterpillar Inc. | Linear position sensor using a coaxial resonant cavity |
| US5519326 | 14 mars 1995 | 21 mai 1996 | Caterpillar Inc. | Linear position sensor using a coaxial resonant cavity |
| US5608332 | 9 mai 1995 | 4 mars 1997 | Caterpillar Inc. | Dynamic gain adjustment in electromagnetic wave hydraulic cylinder piston position sensing |
| US5617034 | 9 mai 1995 | 1 avr. 1997 | Caterpillar Inc. | Signal improvement in the sensing of hydraulic cylinder piston position using electromagnetic waves |
| US5710514 | 9 mai 1995 | 20 janv. 1998 | Caterpillar, Inc. | Hydraulic cylinder piston position sensing with compensation for piston velocity |
| US5886617 | 18 juin 1997 | 23 mars 1999 | Ingersoll-Rand Company | Composite tube transducer cylinder |
| US5943940 | 28 mai 1998 | 31 août 1999 | AB Volvo | Indication means in a brake cylinder for a vehicle brake |
| US6725761 | 30 sept. 2002 | 27 avr. 2004 | Prince Manufacturing Corporation | Spooling device assembly for hydraulic cylinder and method of assembling same |