Abstract: The invention relates to a glasshouse lighting power current cable for supplying electrical energy to assimilation lamps in a glasshouse. The glasshouse lighting power current cable according to the invention has at least three electrically insulated through conductors embedded in the cable for the transmission of three-phase current, the cable being provided with a plurality of connecting points distributed along its length, at which connecting points the conductors are exposed. The connecting points can each be provided with a connector, which connector can be connected to each of the conductors, the connecting points in each case being situated at a fixed, predetermined distance from each other.

Abstract: A contact device for providing an electrical contact between a first busbar (3) and a second busbar (4) which are arranged substantially parallel to each other, comprises a holder (2) with two sidewalls (21, 22) which extend substantially parallel. Said sidewalls (21, 22) enclose a slot (23) for receiving the second busbar. The sidewalls (21, 22) comprise an inner surface (211, 221) facing the slot (23) and an outer surface (212, 222). One sidewall (21, 22) is adapted to face the first busbar (3) with its outer surface (212, 222) and to face the second busbar (4) with its inner surface (211,221). Said sidewall (21) comprises a contact element (1) for providing an electrical contact through said sidewall (21) from the inner surface (211) to the outer surface (212).

Abstract: A drilling rig device (1) situated on the seabed (11), where the drilling rig (1) is sealingly enclosed against the surroundings, and where the drill floor (26) of the drilling rig (1) is provided with an automated handling means (24) and a cartridge (27) for storage of tools and components, the automated handling means (24) being arranged at least to handle and transport tools and components between the drilling centre (22) of the drilling rig (1) and the cartridge (27) for storage of tools and components.

Abstract: Disclosed is a device and method and/or system for generating pulses to improve drilling rates, the ability to drill straighter and farther or fracturing or injection efficiencies in a geological formation that may contain desirable hydrocarbons. This system may also be used in other types of drilling or fracturing operations, whether to unclog arteries or to open formations for underground storage in conjunction with pulsing/fracturing. Alternately, this system could be used to create large pulses downhole for seismic purposes in that they are of such magnitude that they could be readily received in nearby wells or several of uphole locations.

Abstract: Apparatus for drilling a borehole from a first subterranean location to a second subterranean location, comprises a casing (4) extending longitudinally inside a borehole, a conduit (6) extending longitudinally inside casing (4), and capable of being in sealing relationship therewith, at least one entry line (23,24) for liquid into the apparatus, a first annulus (22) between the casing (4) and conduit (6), at least one entry for liquid in the conduit, a tubing (14) having a first end and a second end (16), a remote controlled electrically powered drilling device (12) and remote controlled electrically powered pump, the device and pump being capable of being in fluid contact with the first end of the tubing (14), the second end (16) of the tubing (14) being inside the conduit (6) at a location more remote from the drilling device (12) than the entry for liquid in the conduit (6), with the conduit (6), tubing (14) and first end and second end (16) of the tubing (14) being adapted to provide routes for liquid con

Abstract: A bottom hole assembly connected to coiled tubing to create an acid tunnel in a wellbore formation. High pressure acid is pumped down the coiled tubing and out a nozzle located at the end of the bottom hole assembly. The bottom hole assembly includes a first knuckle joint and a second knuckle joint to properly position the nozzle against the wellbore. The two knuckle joints increases the radius of curvature of the bottom hole assembly while providing a sufficient attack angle for the nozzle against the wellbore. The two knuckle joints also may reduce the chance that the nozzle will cam lock within the acid tunnel. The two knuckle joints may be oriented such that they bend within the same plane. The nozzle may be connected onto the end of wand having a telescoping portion. The nozzle may be adapted to form an elliptical acid tunnel.

Abstract: Disclosed herein is a fiber optic cable downhole tool mounting system. The system includes, a downhole tool, a support member attached to the downhole tool and a fiber optic cable parameter transmissively mounted to the downhole tool by the support member. The support member has an elongated body with a pair of legs extending therefrom, the pair of legs intersect at an oblique angle and define a volume therebetween receptive of the fiber optic cable. The fiber optic cable is attached to the support member and the support member is attached to the downhole tool such that a parameter encountered by the downhole tool is sensible by the fiber optic cable.

Abstract: The present invention provides a method of measuring an amount of a substance depleted from a storage unit, including the steps of: supporting the storage unit on a vehicle, measuring a first weight of the storage unit and any liquid substance contained in the storage unit, allowing a quantity of the liquid substance to be discharged from the storage unit, measuring a second weight of the storage unit and any liquid substance contained in the storage unit, and determining the amount of liquid substance discharged or allowed to be discharged from the storage unit based on the first weight measurement and the second weight measurement.

Abstract: A mass-based dispensing system includes a set of interchangeable load cell assemblies. The load cell assemblies are sized to be interchangeably received into a mass-based product dispenser. Each of the interchangeable load cell assemblies has a maximum rated load that is different from the maximum rated load of the other load cell assemblies. The interchangeable load cell assemblies are substantially modular (i.e., have substantially similar external geometries), thus enabling the product dispenser to interchangeably receive the load cells. The interchangeable load cell assemblies enable a single product dispenser to accommodate a broad range of differently weighted products and/or product containers.

Abstract: An electronic weighing scale that includes an inner housing and an outer housing surrounding the inner housing. In one embodiment, the inner and outer housings are not secured to one another and are spaced apart by shock-absorbing spacers designed to absorb shock of impact loads such as may be caused by the scale being dropped. The inner housing includes a chassis defining a load cell cavity that contains a load cell. The inner housing also includes an electronics compartment closure that together with the chassis define an electronics compartment that contains electronics of the scale, including display electronics and user-controls electronics. In one embodiment, the electronics compartment is hermetically sealed to protect the electronics from moisture.

Abstract: A weighing apparatus having a weighing system, a drive system, and a vertical force minimizing system. The weighing system may include a load receiving surface and a plurality of load cells. The drive system produces rotation of the load receiving surface about its vertical axis. The vertical force minimizing system minimizes the amount of vertical force that is applied to the load cells through the drive system, while simultaneously transmitting forces in the transverse direction to provide for rotational movement of the load receiving surface.

Abstract: The invention discloses a weighing sensor and an electronic scale provided with the same. The weighing sensor comprises a flat plate formed into helical shape, including successively a load-supporting portion, a strain portion and a bearing portion from the center to the outer of this plate, with the load-supporting portion situated between and surrounded by the bearing portion and the strain portion; wherein the load-supporting portion and the bearing portion are respectively used to bear the acting force and the reaction force in opposite directions, and a strain gauge is mounted on the strain portion. The electronic scale comprises at least three weighing sensors, wherein the bearing portion of the sensor is mounted on the scale body, the load-supporting portion directly contacts the supporting leg of the scale, which contacts the plane on which the scale is positioned. The present invention has small thickness, simple structure and low manufacturing cost.

Abstract: The present invention relates to a system and a method for weighing a section of a structure (1). The system comprises at least one hydraulic weight sensor device (3), adapted to be placed in at least one slot (2) under the section, a pressure sensor (7) for measuring the pressure in the at least one weight sensor device (3), and a hydraulic system comprising at least one pump unit (5) and at least one valve unit (6) for pumping hydraulic fluid to and from the at least one hydraulic weight sensor device (3) through a hydraulic line (4). The system further comprises a distance sensor (10) for measuring the height of the slot (2), a control circuit device (20) for calculating the weight of the section based on measured data received from the pressure sensor (7), and for balancing the section on the basis of the measured data received from the pressure sensor (7) and the distance sensor (10) by controlling the pump unit (5) and the valve unit (6).

Abstract: A tactile sensor for detecting a variation in pressing real-time. The tactile sensor is simple in structure, detects a variation in pressing by using reduced wires, has increased reliability and reduced cost, and can obtain information accurately. A sheet has, along its surface, resistors arranged in an X direction and Y direction, has a resistor in Z direction corresponding to the thickness direction of the sheet, and has a pressure sensitive resistor sheet (4) whose resistance in the Z direction varies according to pressing in the thickness direction. At least a pair of electrodes (9, 10, 11, 12) is placed in the periphery of the pressure sensitive sheet (4), and the electrodes conduct a current to at least either of the resistor in the X direction or the resistor in the Y direction. Also, at least a pair of conductors (5, 6) for conducting a current to the resistor in the Z direction is provided on the surface of the pressure sensitive sheet (4).

Abstract: An energy conversion apparatus using recovered energy sources including motor vehicle kinetic energy and wind resistance, supplemented by liquefied air transferred to the vehicle and by solar radiation thereto. The energy sources are combined, as available, to drive a compressor for supplying intake working fluid of a motor vehicle prime mover.

Abstract: An exemplary embodiment provides an electrical machine apparatus that includes a rotor coupled to an armature and a stator surrounding the rotor. The stator has a series of coils; the series of coils configured into a first group of coils and a second group of coils, the first group of coils electrically and magnetically isolated from the second group of coils. The electric machine is capable of simultaneously acting as an electric motor and generating electricity as an alternator.

Abstract: A hinge assembly is provided for moving a step on a motor vehicle between a stowed position and a deployed position. A rail bracket is fixedly secured to the vehicle and includes inner and outer bushings insert molded therein. A step bracket includes inner and outer bushings insert molded therein. The step is fixedly secured to the step bracket. An inner arm includes upper and lower pivot shafts insert molded therein. The upper and lower pivot shafts protrude from the inner arm and are pivotally disposed in the inner bushings of the rail and step brackets, respectively. An outer arm includes upper and lower pivot shafts insert molded therein. The upper and lower pivot shafts protrude from the outer arm and are pivotally disposed in the outer bushings of the rail and step brackets, respectively.

Abstract: A hybrid battery system of an automotive vehicle provides power to various features without running an internal combustion engine.

Abstract: There is provided a motorized cycle comprising a frame, a seat mounted upon the frame, a plurality of suspensions mounted to the frame, a plurality of wheels each coupled to a suspension wherein the operation of the motorized cycle is based on the physical position and movements of the rider. Also provided is a suspension system for a motorized cycle comprising a plurality of suspensions each coupled to the frame of the motorized cycle, and a plurality of wheels each coupled to a suspension such that each wheel is able to move relative to the other wheels and the frame. According to another aspect, there is provided a rider positioning system for a motorized cycle comprising handle bars and a seat wherein the movement of the handle bars affects the movement of the seat.

Abstract: A pump system includes a housing, an input shaft, a pump shaft; a hydraulic pump body, a PTO shaft, a power transmission gear train, and a PTO clutch mechanism. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears of the power transmission gear train, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.

Abstract: The present invention is a transmission system having an input portion connected to an engine, an output portion connected to a front propshaft and a rear propshaft, and a middle portion connecting the input portion to the output portion. The front propshaft and the rear propshaft are substantially co-axial and substantially equal length. The middle portion extends downward and diagonally rearward from the input portion to the output portion.

Abstract: A vehicle including a steering system for moving a pair of wheels supported by a wheel support structure relative to a vehicle structure to achieve steering of the vehicle whilst the vehicle is travelling. The system including a pressure source for providing a supply of pressurized fluid through first and second steering valves to fluid operated first and second actuators, each of which includes an actuating member. The steering valves are operator controlled to provide the pressurized fluid, at least when the steering system is in a first operating mode, from both the first steering valve to the first actuator and from the second steering valve to the second actuator to achieve steering. When the steering system is operating in a second operating mode, only one of the first and second steering valves provides pressurized fluid from the source to a respective one of the actuators to achieve steering.

Abstract: A power steering system, which is disposed in the forward part of a vehicle, allows an electric motor to boost the steering torque applied by a driver, and transmits the steering torque to wheels via a steering transmission mechanism. The power steering system includes an impact detection device that detects the impact of an object on a rack housing that houses a rack bar constituting the steering transmission mechanism to detect the impact on the power steering system more accurately.

Abstract: Acoustic muffler for a hermetic compressor, comprising: a hollow base; a cover to be coupled to the hollow base, said parts of hollow base and cover including respective peripheral flanges to be mutually seated according to a seating plane; and a retention means, attaching the hollow base to the cover at the junction of said peripheral flanges, each peripheral flange presenting a respective seating surface provided with at least one recess and one rib radially adjacent and which are shaped to respectively complement one rib and one recess of the seating surface of the other peripheral flange, each rib and recess being continuous and provided to define a locking between the parts of hollow base and cover against relative spacing apart movements in said seating plane, and to define continuous sealing radial labyrinths between the interior and the exterior of the acoustic muffler, at the junction of said peripheral flanges.

Abstract: An apparatus which provides for, noise suppressor tube with an internal tapered profile and baffle core which has an external tapered profile machined and designed to minimize friction between the two opposing surfaces which will better facilitate the disassembly of the noise suppressor unit after use.

Abstract: An apparatus and method for attenuating the sound generated by a fan powered terminal unit in an HVAC (heating, ventilating, and air conditioning) system. The apparatus utilizes internal geometry to minimize noise due to air disturbances and aerodynamic effects within the apparatus.

Abstract: Described herein is a pipe/silencer device assembly comprising a connection element, which has a through hole, having an axis, and a branching off hole, which is fluidically connected to the through hole wherein the assembly comprises: first connection means adapted for co-operating with a first duct; a second duct, fluidically connected to the connection element; and a blind silencer duct, fluidically connected to the branching off hole.

Abstract: A platform including an upper deck and a lower deck longer than the upper deck, both being constructed of a light-weight sturdy material. Angular material comprises the framework of the decks. The decks are hinged together at the forward edge of the platform, which comes in contact with the roof. Male-female sleeves are attached to the inner parts of the sides and support pieces of both decks to provide support. The sleeves adjust so the platform can accommodate varying roof pitches. The bottom surface of the lower deck is covered in non-skid material to provide adhesion to the roof. The forward edge of the lower deck has extensions with holes so the platform can be secured to the roof with screws or nails.

Abstract: A motorized, climbing tree stand ideal for hunting has a rigid elongated, track constructed from multiple, axially aligned sections attached to a tree trunk. A carriage supporting a seat and footrest is coupled to a shuttle assembly that engages the track. The shuttle assembly mounts a battery-powered motor and a motor-driven gear that engages a toothed rack on the elongated track, moving the carriage vertically upwardly or downwardly in response to motor operation. A hand switch controls a reversing relay to control motor direction. Each track section comprises a rigid, elongated flange with an elongated, tubular sleeve terminating in a reduced diameter coupling tube that coaxially mates with the base of the sleeve in the neighboring section. Alignment rods near the upper ends of each sleeve reinforce the assembly. Adjustable, L-brackets contact the tree for bracing. Track flanges are slidably constrained between suitable rollers secured to shuttle side walls.

Abstract: A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.

Abstract: A lubricant dispenser has a housing whose interior is subdivided by a shiftable piston into a generally closed gas compartment and a lubricant compartment having an outlet port and filled with a body of lubricant. A gas generator associated with the gas compartment is electrically energizable to produce gas and thereby pressurize the gas compartment, shift the piston, and express lubricant from the outlet. A controller including a power supply and a circuit is connected between the power supply and the gas generator for feeding current from the power supply to the gas generator. During a first predetermined part of an operational cycle of the dispenser, the gas generator is energized at a first level. During a second predetermined part of an operational cycle after the first time, the gas generator is energized at a second level lower than the first level.

Abstract: A method for dispensing lubricants uses a lubricant dispenser that has a lubricant reservoir connected to a housing outlet in a housing, and a gas production region that borders on the lubricant reservoir and accommodates an electrolyte fluid. To start dispensing the lubricant, a galvanic gas production element is introduced into the electrolyte fluid, whereby the lubricant is pressed out of the lubricant reservoir, through the housing outlet, under the pressure of a gas that is produced via electrochemical decomposition of the gas production element. An additional component is introduced into the electrolyte fluid at the same time with the galvanic gas production element, which component is decomposed in the electrolyte fluid during a shorter period of time, with reference to the entire period of operation, with the production of gas, and thereby brings about an increase in the gas production rate, part of the time. A gas production element for carrying out the method is also disclosed.

Abstract: A lifting apparatus for lifting manufacturing rings is provided. The lifting apparatus includes an attachment part having an opening extending therethrough, and a plurality of elongated legs extending from the attachment part. Each of the elongated legs has a slit disposed therein. A plurality of support rods are movably disposed in the slits. The support rods are pivotable between a lowered position in which each support rod extends from the associated slit and a raised position in which each support rod is disposed within the associated slit. The lifting apparatus further includes an actuating part operably associated with the support rods and for moving the support rods between the raised position and the lowered position.

Abstract: An incline lift unit (2) is designed for conveying a load along a guide (3) with a varying angle of inclination. The incline lift unit (2) comprises a conveying unit (5), which is designed to be carried by the guide (3) and to move along the guide (3). The incline lift unit (2) comprises a load carrier (4), which is rotatably connected to the conveying unit (5). The incline lift unit (2) comprises rotation means (31) and a control unit (37) for driving the rotation means (31) in such a manner that the load carrier (4) assumes a desired orientation relative to the vertical. The conveying unit (5) comprises a conveying frame (29) and two-gear mechanisms (41). The gear mechanisms (41) are rotatably connected to the conveying frame (29) and comprise a gearwheel (49). The gearwheel (49) is intended for engagement with a gear rack (22) of the guide. The incline lift unit (2) furthermore comprises detection means (55) for detecting a difference in rotation of the gearwheels (49).

Abstract: An elevator installation and a method for arranging a load sensor in the elevator installation includes a car, a support device for supporting the car, the load sensor and a deflecting roller unit. The deflecting roller unit is arranged at the car and has at least two deflecting rollers which are rotatable about a common axle. The load sensor is arranged on the common axle between the two deflecting rollers.

Abstract: An elevator door lock assembly (30) includes a sensor device (40) for providing an indication of a properly locked door. A plurality of proximity sensor elements (42, 44) interact with activating elements (52, 54) when the door lock assembly (30) is properly locked. In disclosed examples, a specific geometric pattern of the sensor elements (42, 44) and the activating elements (52, 54) provides redundancy and tampering protection. In a disclosed example, an output from the sensor device (40) provides an indication of a condition of the door lock and a building level location of a plurality of sensor devices.

Abstract: An elevator system (20) includes elevator car doors (30) that are moved by a door mover (34) between fully open and fully closed positions. An encoder (38, 38?) provides an absolute indication of a current door position. The encoder (38, 38?) also provides a fully closed door position indication that can be used by a machine controller (40) for controlling when an elevator car (22) is allowed to move within a hoistway. Using an encoder that provides an absolute door position indication allows for eliminating a separate gate switch that otherwise has been used for providing a fully closed door position indication.

Abstract: An elevator door assembly (20) includes a single vane member (32) associated with a hoistway door (26). A magnetic device (36) on a car door (24) establishes a magnetic coupling with the vane member (32) to cause the hoistway door (26) to move with the car door (24) in at least two opposite directions. In a disclosed embodiment, a control (38) selectively powers the magnetic device (36), which comprises an electromagnet.

Abstract: An elevator door lock includes a locking member (40) that moves into an unlocked position responsive to contact with at least one door coupler member (32, 34). In disclosed examples, the locking member (40) comprises an arm that is pivotally supported by one of the door coupler members (34). The other coupler member (32) contacts a contact portion (42) on the locking member (40) to move the locking member into an unlocked position as the first coupler member (32) moves toward the second coupler member (34). In a disclosed example, a magnetic coupling between the coupler members maintains the locking member (40) in an unlocked position.

Abstract: An electromagnetic door lock assembly (30) includes a first portion (32) supported relative to hoistway doors (22) and a second portion (34) supported for movement with an elevator car (24). The first and second portions cooperate so that electromagnetic interaction between them unlocks a set of hoistway doors (22) for access to the car (24), for example. In disclosed embodiments, a first portion (32) of the actuator has at least one stationary electromagnetic portion (36A, 36B) and at least one moveable portion (38). The second portion (34) that moves with the car (24) includes at least one stationary electromagnetic portion (44). Magnetic interaction between the first and second portions (32, 34) causes selected movement of the moveable portion (38) for selectively locking or unlocking the doors (22).

Abstract: This invention claims a steel elevator door guide, which contains a reinforcement beam, an attachment beam, a guide carrier and a glide. The attachment beam connects at the bottom end of a elevator cab or corridor door. The invention is held securely clamped together by fasteners, welding or glue. To further protect against any lateral movement imposed onto an elevator door, one or more frictional surfaces is engraved at contact points between individual components and safety rail (s) are provided. A noise reducing, nylon glide is attached to the guide carrier using the same fasteners as those supporting the reinforcement beam. These components are intended to prevent lateral motion of an elevator cab or corridor door even if a severe lateral pressure on the elevator doors has caused the glide to severely flex or fail.

Abstract: A braking device for an elevated platform assembly comprising a platform moveable along a generally vertical mast supporting an upright rack comprises an input gear assembly in mating engagement with the rack, a centrifugal actuator communicating with the input assembly and a spring-loaded brake responsive to the centrifugal actuator. The spring-loaded brake engages the rack and arrests the platform when the platform descends the mast at a rate above an upper threshold limit.

Abstract: A device and method adapted to keep a bicycle upright and stable while not in use that engages one or more brake levers and the brakes of the bicycle, while the bicycle is leaned against an object. A device and method which is lightweight, easy to keep with the bicycle, and which is adapted to be used with a large variety of types of bicycles. A device and method adapted to keep a bicycle upright and stable while leaned against an object while on a slope.

Abstract: A disc brake, particularly for a commercial vehicle, has a brake caliper, which overlaps a brake disc, and brake pads, which each consist of a friction lining and of a pad supporting plate and which, when in an operational position, contact the brake disc on both sides. Each pad supporting plate rests against a pressure plate, which is supported in the brake caliper, or against a brake caliper supporting surface. The disc brake is designed such that at least one of the pad supporting plates and the associated pressure plate or the supporting surface are provided for transferring loads occurring during braking to its facing contact surfaces with positive locking structures, which correspond with one another and which are provided in the manner of a coding.

Abstract: The electro-pneumatic latching valve system having an electrical switch unit that further includes an “apply” or “activate” switch, a “release” or “deactivate” switch, and a power supply. A first solenoid valve is in electrical communication with the activate switch and a second solenoid valve is in electrical communication with the deactivate switch. A pneumatic latching valve is in pneumatic communication with the first and second solenoid valves and a source of pressurized control and supply air is in pneumatic communication with the pneumatic latching valve and the solenoid valves. A terminal device, e.g., a spring brake, is in pneumatic communication with the latching valve, and the device is released or applied in response to pressurized supply air delivered to the device through the pneumatic latching valve in response to pneumatic control signals delivered to the pneumatic latching valve from the solenoid valves.

Abstract: The invention relates to spring elements having steps for composite brake disks which can also be made as lock washers, and the composite brake disks containing them with improved ease of braking.

Abstract: A method for controlling an impeller clutch of a torque converter includes determining a function relating a K-factor of the torque, determining a current engine torque, determining a desired impeller clutch slip, using the function determine the actual impeller speed and thus actual clutch slip, and adjusting the operating state of the impeller clutch to produce the desired impeller clutch slip.

Abstract: In order to provide a one-way clutch-containing rotation transmission apparatus of a high performance and an excellent durability, which shows a satisfactory lubricating property in a one-way clutch and a rolling bearing over a wide temperature range from a low temperature to a high temperature, in which an antirust agent for preventing a corrosion by rainwater or the like has little environmental burden and which does not cause an exfoliation of metal materials under a vibrating condition, a grease composition, employing a synthetic oil as a base oil, also employing at least either of an urea compound and a metal soap as a thickener and containing a non-barium type antirust agent in an amount of from 1.0 to 10 mass % with respect to the entire amount of the grease, is sealed in the rolling bearing and the one-way clutch.

Abstract: A sealing arrangement for a pressurizing-agent-operable control device of a clutch arrangement, for sealing a chamber which is pressurizable with a pressurizing agent, assigned to the clutch arrangement, from the interior space of the clutch arrangement; comprising at least one elastic sealing device. The sealing device is guided on at least one sheet metal element, which is attached to an element that delimits the chamber which is pressurizable with a pressurizing agent. A double clutch arrangement having a sealing arrangement.

Abstract: A shaft coupling device to couple first (10) and second (12) shafts, said device comprising a fluid coupling (14) having a first portion (14a) attached to the first shaft (10) and a second portion (14b) attached to the second shaft (12) wherein the device further comprises engagement means (44) operable to switch the device between an engaged position and a disengaged position, the engaged position having each of the first and second shafts (10, 12) engaged with its respective portion (14a, 14b) of the fluid coupling and the disengaged position having at least one of the first and second shafts (10, 12) disengaged from its respective portion (14a, 14b) of the fluid coupling.