42results about How to "Increase clamping pressure" patented technology

An improved rotatable battery cable clamp connector is designed for use with applying pressure to legs of the clamp intermediate the cable section and post section of the clamp. Self-lubricating and non-corrosive materials are also used to advantage in the manufacture of the connector.

A method of forming a series of bags for bulky articles from rolled thermoplastic film and padding element includes arranging a linear, longitudinally traveling queue of layers of film and padding element according to a set of desired bag dimensions and characteristics and controlling the advancement of the queue to make padding element and seal cuts to form the bags. The invention also includes a system for fabricating bags substantially in the manner identified in the method of the present invention, as well as a method of forming seal cuts in which an envelope is first clamped, then sealed and cut by heat and pressure, then allowed to cool before being released.

A method of operating a clamp (100) that includes a first clamping jaw (102), a support element (104) to which the first clamping jaw is attached and a trigger handle (118) pivotably mounted to a clamp body (112). The method includes actuating the trigger handle causing the first clamping jaw to experience incremental motion and varying the incremental motion as a function of a load encountered by the support element by varying an effective lever arm of the trigger handle by moving a fulcrum point into contact or out of contact with the trigger handle based on the load.

A high frequency surgical instrument having a forceps assembly at a fore distal end of an elongated insertion member, the forceps assembly being constituted by a pair of opening and closing grasper members which are shaped with a series of saw teeth on an inner meeting side in such a way that saw tooth portions on the two grasper members are at least partly brought into abutting engagement with each other when the grasper member are closed. For manipulating opening and closing actions of the grasper members, a manipulative transmission means is threaded through the insertion member, connecting the paired grasper members of the forceps to a manipulation handle which is attached to a proximal end of the insertion member. Each one of the grasper members is formed of a conducting material and arranged to have a width narrower than outside diameter of the insertion member on the saw-toothed inner side. The grasper members are electrically connectible to a high frequency power source, and are entirely covered with an insulating coat except saw tooth portions.

A process for preparing the plastic filter plate or plastic plate features that its mould is controlled by hydraulic press, its heat channel is positioned at the bottom of lower mould and communicated with said lower mould, and the plasticized plastics is injected in said mould via heat channel.

An apparatus and method for controlling a CVT (continuously variable transmission), and a program for executing the control method that reduces a transmission shock during a braking operation. When a foot brake switch is turned on and a vehicle speed is less than or equal to a threshold speed, the ECU increases a clamping pressure applied to a transmission belt to a pressure level higher than a normal pressure. When the vehicle speed falls to or below the threshold speed when the foot brake switch is turned on, the ECU prohibits an increase in the clamping pressure applied to the transmission belt.

An oil well polish rod clamp includes unitary metallic cylindrical housing and a plurality of setscrews. A textured inner surface of the housing increases longitudinal gripping capacity on a rod rotated inside an oil well by a rod rotator and reciprocated by a beam pumping unit to actuate a downhole pump. The inner housing surface may include a plurality of axially short cylindrical portions with annular gaps between upper and lower portions to increase gripping pressure by reducing the contact area with the rod.

A tension rod positioning apparatus and method for C-type clamps and Vises including a shaped threaded rod inserted into a shaped threaded hole on an engagement collar. When the shaped rod and shaped hole are aligned, the rod may be freely positioned within the collar. When the shaped rod is inserted into the collar and turned, the rod engages and turns the engagement collar. The engagement collar includes an external thread sized to fit an internal thread on a clamp base. In this manner, the rod may be inserted and then turned in one direction to both engage the engagement collar and increase the clamping pressure. After clamping, the shaped rod may be turned in the opposite direction to loosen the clamping pressure and disengage the engagement collar. Once the rod and collar have been disengaged by aligning the shaped rod and shaped hole of the engagement collar, the length of the rod may be freely moved within the engagement collar to reposition the clamp for the next operation.

A bearing for an automotive engine includes a base having a first bearing segment formed therein, and a bearing cap removably mounted to the base, with the bearing cap including fastener towers in contact with the base. A second bearing segment extends between the fastener towers. A number of non-contact stiffening ribs extend parallel to the fastener towers. The stiffening ribs are attached to outboard portions of the fastener towers. The stiffening ribs cause the bearing cap to avoid excessive flexing and distortion, while at the same time avoiding fretting corrosion which would occur were the clamp loads of the cap to the base be reduced by materially increasing the size of the fastener towers.

A control device for an automatic transmission including a hydraulic actuator that is actuated on the basis of a hydraulic pressure supplied and a linear solenoid valve that controls the hydraulic pressure supplied to the hydraulic actuator on the basis of a driving current of a solenoid includes an ECU that executes current feedback control over a current value of the driving current that is flowed to the solenoid using at least a proportional term and an integral term on the basis of a deviation (ΔI) between a target current value (Itgt) and actual current value (Ir) of the solenoid such that the hydraulic pressure supplied to the hydraulic actuator becomes a target hydraulic pressure. The ECU increases a proportional gain (Kp) in the current feedback control as a fluid temperature (To) detected by a fluid temperature sensor increases.

Gasket for sealing between flanges in a pressurized fluid system. A central opening is disposed within an inner periphery of the gasket, the inner periphery being curved toward the central opening. Fluid pressure on the inner periphery is reacted by hoop tension in the gasket. The outer periphery of the gasket has concave segments between fastener holes so the area of the gasket is substantially less than the area of the flanges. In this manner, the clamping pressure exerted by the flanges on the gasket is increased.

A hand tool device incorporates a fluid operated mechanism actuable by a plunger pressurizing a reservoir to force fluid past a valve to a fluid filled cylinder accommodating a piston carrying a contact member for clamping a work piece in the manner of a wrench. Continued operation of the plunger increases the pressure applied to the work piece.

A method and apparatus for low pressure molding are disclosed. The molding apparatus comprises a frame, a mold assembly and a transmission assembly. The mold assembly may comprise a first mold and a second mold, the second mold being coupled to the frame. The transmission assembly may be coupled to the frame and to the first mold. A motor may be coupled to the transmission assembly for moving the first mold relative to the second mold. A pneumatic actuator may also be coupled to the transmission assembly for increasing clamping pressure between the first mold and the second mold.

The invention relates to the technical field of textile equipment, and discloses a pressure-adjustable yarn gripper for an air-jet loom based on the intelligent manufacturing principle. The pressure-adjustable yarn gripper comprises a machine frame, a cam is movably connected into the machine frame, a movable protruding block is movably connected to the exterior of the cam, an electromagnet is fixedly connected into the cam, a permanent magnet block is movably connected to the exterior of the electromagnet, and an electric contact block is movably connected to the exterior of the permanent magnet block. Through cooperative use of a pressure rod, a limiting sliding block, a sliding rod, a lifting rod, an adjusting rod and a threaded rod, the effect of increasing the yarn clamping pressure in the yarn clamping process is achieved, so that the yarn gripper meets the requirement for fabrics with small warp and weft density or small warp and weft cross weaving friction force, the use rangeof the yarn gripper is effectively widened, and the use effect of the yarn gripper is effectively improved; and loosening of the finished fabrics due to insufficient weft tension caused by insufficient clamping force is effectively avoided, so that the quality of the woven finished fabrics is effectively guaranteed, the textile effect is effectively improved, untwisting or retracting of yarns is effectively prevented, and the production efficiency is guaranteed.

The invention provides a split type board floating clamp on a numerical control press. The split type board floating clamp on the numerical control press is simple in structure, convenient to assemble, high in clamping reliability and capable of guaranteeing the position accuracy of a board. The split type board floating clamp on the numerical control press comprises an upper clamp body, a lower clamp body and an air cylinder. The upper clamp body is hinged to the lower clamp body. The split type board floating clamp further comprises a base, a dovetail base, an air cylinder cushion column, a laser locating device, a pair of intersecting roller guides and a pair of elastic guide mechanisms. The air cylinder cushion column is connected between the tail end of the upper clamp body and the tail end of the lower clamp body and used for being communicated with an air channel of the air cylinder. A first guide portion of the base and a second guide portion of the dovetail base maintain guiding operation in the perpendicular direction through the intersecting roller guides and are movably connected in the perpendicular direction through the elastic guide mechanisms. The laser locating device is fixedly connected to one side of the lower portion of the second guide portion of the dovetail base. According to the split type board floating clamp on the numerical control press, the board machining reliability is improved and the service life of a machine tool is prolonged.

The invention relates to a gear component, comprising a gear seat and a gear ratably arranged on the gear seat; an annular circuit board which is fixed on the gear seat and is used for sensing the rotation angle of the gear is also arranged between the gear and the gear seat; a magnet is arranged on the gear; hall elements for sensing the magnet are arranged on the annular circuit board. According to the gear component, disclosed by the invention, the position of the magnet is sensed by the hall elements by means of the specially-designed annular circuit board structure, as so to determine the rotation angle of the gear, the structure is simple, and the sensing is accurate and effective. Particularly, multiple hall elements distributed in the circumferential distribution can be arranged on the annular circuit board, the multiple different rotation angles and positions of the gear can be sensed, and different requirements are met. For instance, when the gear is connected with a valve rod of a valve and controls the valve rod to perform reciprocating motion, the position change of the gear can control the displacement of the valve rod, and the regulation of the valve is realized.

A method of controlling a variator that requires clamping pressure between a first component and a second component to transfer torque therebetween, such as a continuously variable transmission, includes calculating a theoretical clamping pressure, and multiplying the theoretical clamping pressure by a multiplier to define a commanded clamping pressure. The multiplier includes a value that is variable between a minimum multiplier value and a maximum multiplier value. The value of the multiplier is based on current operating conditions of the variator. The commanded clamping pressure is applied to the first component and the second component to generate friction and transfer torque between the first component and the second component.

The invention discloses a stand column type capsule tire vulcanizer. The stand column type capsule tire vulcanizer comprises a rapid cylinder die opening and closing mechanism, a stress application cylinder mechanism, self-lubrication sliding bearings, a capsule center mechanism, stand column sliding frame guiding mechanisms, an electrical cabinet and a base. The rapid cylinder die opening and closing mechanism comprises drive devices, guiding devices, a limiting device and a stroke adjusting device. The stand column sliding frame guiding mechanisms are located at the left end and the right end of the base correspondingly, and a lower sliding frame is fixed between the guiding devices on the two sides. An upper sliding frame is arranged above the lower sliding frame. The upper sliding frame and the lower sliding frame are both connected with the drive devices. The stress application cylinder mechanism is arranged on the upper sliding frame. Through ascending and descending of a rapid cylinder, rapid die opening and closing are achieved, the work time is saved, and the work efficiency is improved. A force application cylinder is used for pressurizing, the die closing pressure is increased through the large bore, the stroke is short, the oil amount is reduced accordingly, and the work time of a main motor is shortened; and meanwhile, pressurizing is conducted through a stress application oil cylinder and the gravity of the sliding frames, accordingly, energy consumption is greatly reduced, and energy is saved.