Patents for F15B 11 - Servomotor systems without provision for follow-up action (16,384)
10/1977
10/25/1977US4055046 Control system having override for fluid operated work elements
10/11/1977US4052929 Hydraulic control means, especially a steering means
10/04/1977US4051868 Control device for a hydraulically operated consumer
09/1977
09/13/1977US4047384 Pump jack device
08/1977
08/30/1977US4044795 Selective and proportional hydraulic remote control device, in particular for handling and public work gears
08/30/1977US4044786 Load sensing steering system with dual power source
08/30/1977US4044653 Hydraulic control apparatus for injection molding fluent plastic material
08/23/1977US4043419 Load sensing power steering system
08/16/1977US4042311 Pump fluid motor carrying spool valve for distributor valve actuation
08/16/1977US4041983 Pressure controlled swing valve with safety feature
08/16/1977US4041970 Quick bleed exhaust valve
08/09/1977US4040438 Control valve with flow control means
08/02/1977US4039010 Hydraulic circuit for tree harvesting implement
07/1977
07/26/1977US4037697 Hydraulic clutch actuating system
07/26/1977US4037621 Load responsive control valve with constant leakage device
07/26/1977US4037410 Hydraulic control valve
07/19/1977US4036109 Device for moving and positioning an element of a machine
07/19/1977US4036106 Actuator control system
07/12/1977US4034785 Delimbing attachment for tree harvesting apparatus
07/12/1977US4034563 Load sensitive hydraulic system
07/05/1977US4033233 Fluid pressure operable servo positioner
07/05/1977US4033127 Hydraulically-powered vehicle accessory system supercharged by hydraulic vehicle drive system
06/1977
06/28/1977US4031813 Hydraulic actuator controls
06/21/1977US4030623 Hydraulic circuitry for an excavator
06/21/1977US4030522 Hydraulic control valve arrangement
06/21/1977US4030294 Compressed air generating device for forklift trucks
06/14/1977US4029439 Control system for variable displacement pumps
06/14/1977US4028889 Load responsive fluid control system
05/1977
05/24/1977US4024797 Spring centered balanced resolver valve
05/24/1977US4024710 Load sensing hydraulic circuit having power matching means
05/17/1977US4023650 Hydraulic systems for two speed lifting
05/17/1977US4023466 Apparatus for regulating the speed of and the pressure of fluid upon the ram in the injection assembly of an injection molding machine
05/17/1977US4023364 Swing flow supplemental travel for an excavator
05/10/1977US4022109 Automatic directional control valve
05/03/1977US4020862 Apparatus for controlling the volume and pressure of a pressure medium in a die-casting machine
05/03/1977US4020747 Hydraulically-operated devices
05/03/1977US4020746 Hydraulically operable linear motor
04/1977
04/19/1977US4018136 Hydraulic apparatus for controlling movement of a member under loading
04/12/1977US4017221 Combined unloading and relief valve for pump unloading circuit
04/12/1977US4017218 Dual-speed setting underspeed system
04/12/1977US4017216 Variable underspeed system linkage
04/12/1977US4017215 Infinitely variable orifice for part throttle control
03/1977
03/29/1977US4014360 Plural-service hydraulic system
03/29/1977US4014248 Servomechanism controlled step by step
03/15/1977US4011887 Fluid power control apparatus
03/15/1977US4011724 Dual force actuator
03/15/1977US4011721 Fluid control system utilizing pressure drop valve
03/08/1977US4011354 Method and apparatus for making tubular resin elements such as pipes
03/08/1977US4010610 Hydraulic load-sensing system
03/01/1977US4009639 Hydraulic swing motor
02/1977
02/22/1977US4008571 Hydraulic system for electric lift trucks
02/15/1977US4008004 Control system for variable displacement pumps
02/15/1977US4007666 Servoactuator
02/15/1977US4007592 Power transmission
02/08/1977US4006667 Hydraulic control system for load supporting hydraulic motors
02/08/1977US4006663 Hydraulic control means, especially a steering means
02/01/1977US4005636 Hydraulic system for a working machine
01/1977
01/25/1977US4004779 Winch and fluid control system therefor
01/25/1977US4004419 Apparatus for converting a hydraulic pressure signal to a mechanical motion
01/25/1977US4004418 Demand compensated hydraulic system with flow sensitive device
01/11/1977US4002027 Multiple pump control system
01/04/1977US4000751 Hydraulic power system with automatic priority-demand flow control means
01/04/1977US4000684 Safety lock-out valve
01/04/1977US4000616 Multi-engine multi-pump hydraulic summating system
12/1976
12/21/1976US3998134 Load responsive fluid control valves
12/21/1976US3998053 Three-pump - three-circuit fluid system of a work vehicle having controlled fluid-combining means
12/14/1976US3997062 Multi-section telescopic jibs
12/14/1976US3997017 Auxiliary hydrostatic front wheel drive system
12/14/1976US3997007 Implement positioning hydraulic control system
12/14/1976US3996840 Control circuit of actuator
12/14/1976US3996838 Diverter valve for power steering with power beyond
12/14/1976US3996742 Fluid flow control apparatus
12/07/1976US3995532 Proportional control valve with preconditioned inlet modulating relief valve
12/07/1976US3995425 Demand compensated hydraulic system with pilot line pressure-maintaining valve
11/1976
11/30/1976US3994627 Pumping apparatus for wet concrete
11/30/1976US3994133 Automatic control device for the distribution of hydraulic fluid between two hydraulic circuits
11/23/1976US3993091 Manifold and valve system
11/23/1976US3992883 Fan drive systems
11/23/1976US3992858 Hydraulic system for controlling a gang of lawn mowers
11/16/1976US3991786 Fluid circuit plate for a circuit module for fluid distribution
11/16/1976US3991661 Three position fluid powered actuator
11/16/1976US3991571 Fluid system of a work vehicle having fluid combining means and signal combining means
11/09/1976US3990594 Fluid-actuated clamping apparatus and circuit
11/09/1976US3990583 Device for controlling the boom elevation of a side crane
11/09/1976US3990352 Control valve
11/09/1976US3990349 Device for effecting translational movement of a machine
11/09/1976US3990237 Deman compensated hydraulic system with pressure amplifier
11/09/1976US3990236 Load responsive pump controls of a fluid system
11/02/1976US3989062 Source fluid supply and pressure control system for hydraulic motors
10/1976
10/26/1976US3987920 Self-leveling system for material handling implement
10/26/1976US3987704 Fluid system of a work vehicle having fluid combining means
10/26/1976US3987703 Combined restrictor and dead engine lowering valve
10/26/1976US3987623 Controlled priority fluid system of a crawler type vehicle
10/26/1976US3987622 Load controlled fluid system having parallel work elements
10/12/1976US3985063 Hydraulic control system
10/12/1976US3984979 Load responsive fluid control valves
09/1976
09/28/1976US3982469 Apparatus for controlling work element operating pressures in a fluid system
09/21/1976US3981228 Hydraulic control system
09/21/1976US3981150 Dual hydraulic motor drive system
09/21/1976US3981149 Hydraulic cascade drive system