364results about How to "Large force" patented technology

A new power tong for rotating tubular members for make-up (connection) and break-out (disconnection) operations. In one aspect such a tong has at least one movable jaw with a smooth surface gripping element thereon and pre-load apparatus for applying a pre-load force to a movable jaw so that the jaw does not slip on a tubular to be rotated and so it does not mark or damage the tubular. In one aspect the pre-load apparatus includes a first pre-load device at one end of a movable jaw for breakout operations and a second pre-load device at another end of the jaw for make-up operations. In one aspect a power tong which has unique smooth surfaced jaw inserts made, e.g., of aluminum. In one aspect a single pivotable pre-load cylinder, fixed to rotary, pivots for pivotable connection to one jaw or the other. This can be done manually or a powered smaller piston/cylinder may be used to pivot the pre-load cylinder. In one aspect a jaw unit which comprises a jaw holder and a jaw movable with respect to said jaw holder, characterized in that said jaw is slidably mounted on said jaw holder.

By providing an elongated profile which incorporates a plurality of indentations formed therein, a load bearing/cushioning/supporting element is realized. By employing this construction, the element accommodates large strain under force, and shows good resiliency and repeated recovery. The element can be produced from a continuous extrusion process with immediate manipulation to re-shape the extrusion profile, or secondary thermal forming process which follows the extrusion process, or blow molding process, or injection molding process.

Vehicle motion control devices and methods systematically treat a conditions of each wheel to acquire and maintain the vehicle behavior stability together with anti wheel lock and wheel spin processing, braking forces distribution. Device for controlling a running behavior of a vehicle comprises means for estimating a road reaction force on each wheel, means for calculating a yaw moment around a centroid of the vehicle body generated by the road reaction force on each wheel, and means for controlling driving and braking forces on each wheel based upon the yaw moments so as to stabilize a running of the vehicle. Spin and Drift conditions are detected through presently generated yaw moments and critical yaw moments which can be generated by a road reaction force assumed to be maximized. Physical parameters of each wheels, required for detecting and controlling the behavior of the vehicle are estimated with a theoretical tire model.

A table may include a table top and a frame. The frame may be connected to the table top using one or more fasteners. When a force is applied to the table, such as a force that draws the frame away from the table top, the fasteners may contact and/or engage one or more stops, which may help resist the frame's movement away from the table top and may help prevent damage to the table top.

A labelling device includes a linearly displaceable piston operably connectable to a moving mechanism for moving the piston from a resting position to a labelling position. A label carrying mechanism is arranged at the distal end of the piston for carrying an adhesive label and affixing the adhesive label to an object via physical contact at the labelling position of the piston. A force-switching-state system is provided to maintain the piston in relation to the moving mechanism in an attracting force state and the piston moves with the moving mechanism. The physical contact creates an opposite repelling force from the object onto the label carrying mechanism causing separation of the displaceable piston from the moving mechanism. This separation causes a change of the force state of the displaceable piston from an attracting to a repelling force state, causing the linearly displaceable piston to move back to the resting position.

A vehicle trim component that has a concealed storage compartment includes a mounting portion and a pair of generally parallel tracks that at least partially define an access opening of the trim component. A flexible lid slidably is disposed between the tracks for movement between a closed position and an open position relative to the access opening. The lid includes a flexible portion and a reinforcement portion coupled to the flexible portion. The flexible portion is configured and arranged to span the access opening when the lid is in the closed position. The reinforcement portion has an array of sliding members and an array of hard, rigid reinforcement inserts. Free ends of each of the reinforcement inserts are located in the tracks. The sliding members are disposed on each of the reinforcement inserts to isolate the reinforcement inserts from contacting the tracks.

Electromagnetic actuators for digital cameras, in particular miniature cell-phone and tablet cameras, include an electromagnet with a first elongated ferromagnetic member surrounded coaxially in part by a conductive coil along a first longitudinal axis, and a elongated second ferromagnetic member with a second longitudinal axis. The first and second ferromagnetic members have respective first and second operative surfaces and are aligned such that their longitudinal axes are parallel and such that respective operative surfaces overlap each other across a gap. The two members are mechanically coupled to respective frames. A frame hinge connects the frames and enables a relative tilt motion between the ferromagnetic members when current passes through the coil. The tilt motion is convertible into a linear displacement along an optical axis of an optical element coupled to the actuator. Two actuators can be combined into an assembly capable of providing double-axis tilt.

A buoyant actuator (10) for use in apparatus (11) for harnessing ocean wave energy and for converting the harnessed energy to high-pressure seawater. The buoyant actuator (10) comprises a body (21) defining a chamber (23) having a pliant outer skin (27). The chamber (23) is adapted to contain matter and a hydrodynamic property of the body (21) is selectively variable by varying the matter within the chamber (23). The variation to the hydrodynamic property may comprise a variation to the buoyancy (either positively or negatively) or a variation to the response area (such as the volume or shape) of the body (21), as well as a combination thereof. The variation to the matter may comprise addition of matter to, or extraction of matter from, the chamber (23). The matter may comprise a solid, liquid or gas, as well as any combination thereof. In the arrangement shown, the matter comprises foam spheres (53). The outer skin (27) is drawn into a taut condition by the outward pressure of the foam spheres (53) inside, causing the actuator to assume its design shape. The volume occupied by the foam spheres (53) is in total still less than the total enclosed volume of the chamber (23) and there are interstitial regions (55) around each sphere (53). The interstitial regions (55) may be filled with fluid to adjust the buoyancy.

A gearbox having an input shaft (8) and an output shaft (20); a first epicyclic gear (10) connected to the input shaft (8); a second epicyclic gear (12) connected to the first epicyclic gear (10); a first electrical machine (14) connected to the first epicyclic gear (10); a second electrical machine (16) connected to the second epicyclic gear (12); a first main shaft (34) connected to the first epicyclic gear (10); a second main shaft (36) connected to the second epicyclic gear (12). A first coupling unit (56) disengagingly connects two rotatable components (22, 26, 50) at the first epicyclic gear (10), and a second coupling unit (58) disengagingly connects two rotatable components (28, 32, 51) at the second epicyclic gear (12), such that at least one of the rate of revolution and the torque at the first and the second main shafts (34, 36) can be influenced by controlling at least one of the first and the second coupling units (56, 58) to a condition of the rotatable components (22, 26, 50; 28, 32, 51) that is engaged or disengaged. Also a vehicle (1) having such a gearbox (2), a method to control such a gearbox (2), a computer program (P) to control a gearbox, and a computer program product comprising program code for an electronic control unit (48) or another computer (53) in order to implement the method.

An orthodontic brace includes a set of appliances that are connected to respective teeth of the patient. At least some of the appliances include a latch that is operable to release an archwire from the appliance whenever the force exerted by the archwire exceeds a certain value. This value is higher for appliances connected to certain teeth than the value associated with appliances connected to other teeth, in accordance with the particular malocclusion encountered. The brace is constructed to ensure that the goals of the treatment program are carried out in an efficient manner while reducing the likelihood of inadvertent release of the archwire during the course of treatment.

An end of a stay material made of a tubular aluminum alloy extruded material is expanded by electromagnetic molding to form a flange for producing a bumper stay. The flange width is increased without cracking and a decrease in the thickness. A stay material having a circumferential wall undulating in a waveform pattern is used. A circumferential length L (one round length along waveform pattern) of the outer periphery wall along the circumferential direction of the stay material is longer than a circumferential length L₀ of a simple cylindrical circumferential wall having the same outer diameter (circumscribed circle) (L>L₀). L−L₀ is an excessive line length. Since the circumferential wall has the excessive line length, when the end of the circumferential wall is expanded to form the flange, the flange having a large diameter can be formed.

In a plug connector (1) for being connected to a receptacle connector (2) in a first direction, a plug contact (13) is held by a plug housing (11) and has a principal surface extending along the first direction. The plug contact is formed with a concave portion recessed from the principal surface in a second direction perpendicular to the first direction. A wall is remained between the principal surface and the concave portion. In the receptacle connector (2), a receptacle housing (21) holds a receptacle contact (23) for coming in contact with the plug contact in the second direction. The receptacle contact is formed with a projection (23d) which is positioned inside the concave portion when the plug connector is connected to the receptacle connector.

The present invention concerns a control device for a lock mechanism, in particular a lock mechanism comprising a housing; a hollow hand knob to be pressed on which is mounted on the housing such that it can rotate and which has a far end with teeth inside this housing; an electric motor situated in the hollow hand knob, applied on the housing in a fixed manner and situated with its drive shaft in this housing; a mesh element mounted in the housing in a rotatable manner and provided with teeth for meshing with a key part of the lock mechanism and a gear wheel which can be axially moved by the hand knob.

A fuel control device for a combustion engine capable of running on any one of a plurality of fuels has a fuel selection module with a plurality of fuel type settings for selecting a specific fuel type whereupon the fuel control device controls the outlet pressure of the chosen fuel to a desired fuel pressure corresponding to the calorific properties of the chosen fuel. The fuel selection module preferably operates a plurality of fuel flow circuits each designated for a specific fuel type, and each having a biased closed inlet valve and a biased closed outlet valve. Located preferably between each inlet and outlet valve is a pressure regulator designated for the specific fuel type and controlling the outlet fuel pressure. The device preferably includes a fuel metering apparatus and a shutoff valve that communicate with, and control in part, fuel flow through the fuel flow circuits.

A reciprocal-movement power tool includes a movable blade reciprocally movably provided on a main body. A receiving plate that supports an angle iron to be cut is supported on the main body at a position in front of the movable blade. The movable blade is fixed on a front tip of a rod-shaped shuttle screw. The shuttle screw moves back and forth in the axial direction within a tubular screw shaft. The screw shaft is carved with a female screw portion and is rotated through a joint spindle that is deceleratingly rotated upon rotation of the motor through a deceleration means. The shuttle screw has a male screw portion that is threadingly engageable with the female screw portion.

Continuously variable speed drives (CVT) have improved performance over all shift ratios using an improved flyweight (camweight) that enhances power transfer for higher shift ratios (slower vehicle speeds) without compromising efficiency or performance at smaller shift ratios. Prior art CVTs characteristically have some belt slippage, and attendant power waste and excess wear, when operating with higher shift ratios. The prior art deficiency is due to a tendency of the prior art flyweights not to cause sufficient side forces (axial forces) on the belt at higher shift ratios. The present invention preferably supplements conventional flyweights with a massive shoulder that is a supplemental mass concentration placed near the flyweight's center of rotation, and at an obtuse angle from the center-of-mass (COM) of a conventional flyweight, such that the resultant centrifugal forces effect a desirable axial force. Embodiments are disclosed that allow adjusting the degree of improvement. Measurements are presented showing that improvement may be effected at high and moderate shift ratios. The improved flyweight has utility in flyweight using systems not using belts.