131results about How to "Enhanced closing force" patented technology

A narrow profile surgical ligation clip has two legs with clamping surfaces joined by a hinge near the proximal ends, allowing the clip to reversibly open and close. A locking mechanism is proximal to the hinge to bias or lock the clip closed, including first and second jaw structures spaced on opposite sides of a longitudinal axis of the clip thereby defining a locking space therebetween. In one embodiment, a wedge or buttress body pivots by application of an external force applied to a proximal end of the clip towards the hinge to move into the locking space such that one or more outer surfaces or projections of portions of the body fit into or abut against complementary surfaces or other parts of the locking mechanism or clip assembly to bias or lock the clip in a closed position and provide additional closing force to the inner clamping surfaces.

A composite particle that incorporates a material and is designed to undergo a reaction and/or mechanical or chemical change with the environment to increase in volume. The composite particle can be combined with a constraining matrix to create an expandable particle upon reaction. These particles can be used in stimulating wells, including oil and gas reservoirs.

A vehicle stowage assembly is provided that includes a compartment having an opening to allow access to the opening and a door proximate the opening. A ferrous member magnets are disposed on the compartment and the door to magnetically couple the magnets to the ferrous member when the door is in the closed position. A crash sensor is provided for detecting an expected vehicle crash event. An electromagnetic coil electromagnetically is coupled to the ferrous member, wherein the coil is electrically energized by current to create a polarity on the ferrous bar to create an increased force closure to the door relative to the housing when an expected vehicle crash is detected. The coil generates an opposite polarity on the ferrous member to open the door in response to a user actuated input.

A dual fuel injection valve separately and independently injects two different fuels and comprises a dual needle assembly with a hollow open-ended outer needle and an inner needle disposed within the hollow interior. A cap cooperates with the outer needle to cover the open end, and the outer needle and the cap together comprise the inner valve body. The outer and inner needles are each movable independently from each other between respective open and closed positions. A spring disposed between the cap and the inner needle contributes to biasing the inner needle in the closed position. The cap can be joined to the outer needle, whereby the cap can provide a limit to the movement of the inner needle. In another embodiment the cap can be detached from the outer body, allowing the spring to space the cap away from the outer needle, assisting with biasing the outer needle closed.

A seal that includes a hollow bulb that defines an interior space, and further includes at least one solid divider wall located in the interior space in order to divide the interior space so that it includes at least a first chamber and a second chamber, where the first and second chambers are not in fluid communication with one another. In some preferred embodiments: (i) the interior wall is generally V-Shaped in transverse cross-section; (ii) the first chamber is generally triangular in transverse cross-section; and (iii) the second chamber is generally U-shaped in transverse cross-section. Some preferred embodiments further include a seal base (for example, a T-shaped base), with the hollow bulb being mechanically connected to the base at the bottom of the T-shape so that an open end of the V-shaped interior wall is oriented to directly face the seal base. In some preferred embodiments, the first and second chambers are hollow.

A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.

In a method for operating an actuator for a wastegate actuating device of an exhaust gas turbocharger, a wastegate situated in an exhaust branch of an internal combustion engine is electrically adjustable with the aid of the actuator, and an exhaust gas quantity flowing through the exhaust gas turbocharger is adjustable as a function of an opening position of the wastegate. The actuator is controlled using an applied electrical power in a closed position of the wastegate to provide a varying closing pressure of the wastegate as a function of a characteristic curve of an exhaust gas counterpressure applied via the wastegate.

The invention concerns a pneumatic angular gripper which includes a gripper body forming a chamber (14), a piston (12) moving alternately in said chamber, and a pair of gripper jaws (13) oscillating in opposite directions on respective rotation axes in said gripper body. Each jaw (13) is connected to the head of one piston stem (12) by means of a connecting rod (22) forming a longitudinal extension of the jaw and susceptible to angular movements in regards to the head of the stem of said piston. The connecting rod has a distal part guided and sliding in a base hole (21) formed in its respective jaw (13) and a proximal part fixed to a turning pin (23) placed on board the head of the piston stem.

A bracket for orthodontic treatments comprises a closing spring, which is fixedly anchored at the bracket and which covers an arch wire slot formed in the bracket for receiving an arch wire in a closed position. In an end section of the closing spring covering the slot, a tongue is formed in the center and folded at an angle toward a base plate of the bracket. The spring has an end section which is held by projections formed at the bracket structure to secure the spring in its closed position. The spring may be dimensioned and pre-tensioned in a manner that an arch wire inserted into the slot is torqued by the closing spring with forces from the top and from the side.

A wire harness fixing device designed to enable convenient installation thereof within an inner liner of a refrigerator while effectively preventing leakage of a foam insulation material filled between the inner liner and an outer liner of the refrigerator. The wire harness fixing device comprises a housing including an insert part provided at one end of the housing and inserted through a fixing hole formed in the inner liner, and an interior part positioned at the other end within the inner liner. A latch is provided on the insert part that engages an outer surface of the inner liner at the fixing hole when the insert part is inserted into the fixing hole, and a cover of a flexible material integrally formed to the housing at the interior part side to cover the fixing hole, the cover being subjected to elastic deformation to closely contact an inner surface of the inner liner at the fixing hole side when the latch is latched to and supported by the inner liner.

A container is provided for storing items in a vacuum state. The container includes a receptacle with associated lid. A lever and clamp act together as a toggle to exert a relatively high closure force on the lid. The container includes a vacuum pump, preferably within a base of the container. A switch is provided to activate and deactivate the pump which is activated by the lever when the lever is pivoted to a closed position. A sensor is optionally also provided to shut off the pump when a sufficiently low pressure is reached. The lid includes a bleed port which is closed by the clamp when the lid is closed. When the lever and clamp are pivoted to an open position, this bleed port is opened so that pressure equalization occurs and the lid can be easily opened without fighting atmospheric pressure forces acting on the lid.

A locking magnet closure consists of a first closure module and a second closure module and comprises a magnet-keeper construction with at least one magnet in the first closure module and a keeper or second magnet in the second closure module, wherein on closing the magnet-keeper construction pulls the first closure module and the second closure module together in a closing direction. The closure further comprises a locking device for positively locking the closure modules between the first closure module and the second closure module. The locking device comprises at least one spring locking element, consisting of an engaging protrusion and a spring, wherein the spring locking element is arranged in the first closure module, and a locking piece which is arranged in the second closure module.

An arthroscopic device is used with a hand piece having a motor drive with a rotating drive shaft. An elongate probe extending along a longitudinal axis and includes a proximal hub on a proximal end. The proximal hub detachably couples to the hand piece, and an openable-closeable jaw structure is disposed on a distal end of the elongate probe. A conversion mechanism carried by the hub converts a rotational motion of the motor drive shaft to a longitudinal motion of an actuator member. The actuator member drives the jaw structure between jaw-open and jaw-closed positions to resect bone and other hard tissues.

The invention relates to a container comprising a snap-in closure disposed between an upper part and a lower part of the container, the snap-in closure having a relatively strong holding or locking force and able to be opened relatively easily. The snap-in closure comprises a snap-in tab constructed out of the wall of one part of the container and detached along three sides, with a snap-in key disposed at the upper free end of the said snap-in closure and able to engage in a coordinated snap-in slit at the opposite container part.

Dribble control apparatus including a dribble control door hingedly or pivotally connected to an upper portion of a tube of a grain unloading conveyor. The door has a closed position covering a discharge opening of the tube for preventing grain dribbling, and an open position. The door has a shape which positions a center of gravity of the door for urging the door toward the closed position, including when closed, and which enables the door to support itself in the open position on a stream of grain flowing from the discharge opening with at least a substantial portion of the door spaced above the grain stream, while influencing or controlling an outward extent and direction of the flow of the stream.