39results about How to "Avoid excessive rigidity" patented technology

Piezoelectric actuator (51) includes a piezoelectric element (11) that performs expansion / contraction movement in accordance with the state of an electrical field, a base (21) with the piezoelectric element (11) adhered to one surface thereof, and a support member (46) for supporting the piezoelectric element (11) and the base (21), the piezoelectric element (11) and base (21) vibrating up and down in accordance with the expansion / contraction movement of the piezoelectric element (11). The base (21) is connected to the support member (46) by way of a vibration film (31) having less rigidity than the base (21). In addition, the piezoelectric element (11) and support member (46) have different outline shapes.

A turbine engine annular combustion chamber includes inner and outer longitudinal walls connected upstream by a transverse chamber bottom and including a single-piece cowling covering the chamber bottom. Each of the longitudinal walls is inserted between corresponding flanges of the chamber bottom and of the cowling. The longitudinal walls, the chamber bottom and the cowling are assembled together by a plurality of first fixings between the longitudinal walls and the chamber bottom alternating with a plurality of second fixings distinct from the first fixings between the longitudinal walls and the cowling.

The invention concerns a turbine engine annular combustion chamber made up of inner (6) and outer (8) longitudinal walls connected upstream by a transverse chamber bottom (10) and comprising a single-piece cowling (12) covering said chamber bottom, the longitudinal walls (6, 8) each being inserted between corresponding flanges (22, 24; 26, 28) of the chamber bottom (10) and of the cowling (12). The longitudinal walls (6, 8), the chamber bottom (10) and the cowling (12) are assembled together by means of a plurality of first fixings (20a; 20b) between the longitudinal walls (6, 8) and the chamber bottom (10) alternating with a plurality of second fixings (20a; 20b) distinct from the first fixings between the longitudinal walls (6, 8) and the cowling (12).

A fluid dispenser head for mounting on an outlet from a fluid dispenser member such as a pump or a valve, the head comprising:an endpiece (1) that is adapted to be mounted on the outlet from the dispenser member;a fluid dispenser nozzle (2) through which the fluid leaves the head; anda flexible hose (3) connecting the endpiece (1) to the nozzle (2);the hose being injection-molded on the endpiece (1) and / or on the nozzle (2).

A gas purge valve comprising a housing fitted with an inlet port being in flow communication with a liquid outlet port, and at least one gas outlet member, a gas flow barrier associated with the liquid outlet port, a float member displaceable within the housing between a first position adjacent the inlet port and a second position adjacent the gas outlet The at least one gas outlet is fitted with an inlet prohibiting valve, and is sealingly engageable by a flexible sealing member articulated to the float member. Buoyant displacement of the float member into the second position entails sealing of the at least one gas outlet by the flexible sealing member.

The present invention provides a medical balloon having enlarged radii, which may be disposed on a dilation catheter. The enlarged radii balloon may reduce the trauma experienced by a patient both during the procedure and when the catheter is removed from the patient. The enlarged radii may provide the deflated balloon with smoother transitions and less mechanical rigidity at the balloon transitions.

Piezoelectric actuator (51) includes a piezoelectric element (11) that performs expansion / contraction movement in accordance with the state of an electrical field, a base (21) with the piezoelectric element (11) adhered to one surface thereof, and a support member (46) for supporting the piezoelectric element (11) and the base (21), the piezoelectric element (11) and base (21) vibrating up and down in accordance with the expansion / contraction movement of the piezoelectric element (11). The base (21) is connected to the support member (46) by way of a vibration film (31) having less rigidity than the base (21). In addition, the piezoelectric element (11) and support member (46) have different outline shapes.

A chemical mechanical polishing apparatus includes a platen, a polishing pad affixed to a surface of the platen, and a polishing head configured to retain and rotate a wafer while pressing a surface of the rotating wafer against the polishing pad. A first portion of the polishing pad that engages the polishing head proximate the edge of the wafer provides less rigidity than a second portion of the polishing pad that engages a portion of the surface of the wafer. For example, the polishing pad and / or the platen may have a recess or other cushioning structure positioned proximate a locus of movement of a portion of the polishing head that supports the edge of the wafer.

An end seal for a fluid chamber which supplies fluid to a roll, includes a generally parallelepiped compressible member having first and second opposite sides and including a first end section having a first inclined planar upper surface, a second end section having a second inclined planar upper surface, and a central section which connects together the first and second end sections, the central section having an arcuate upper surface for receiving the roll, the arcuate upper surface connected to the first and second inclined planar upper surfaces at respective apices; and at least one pressure relieving recess positioned in the compressible member at a position below at least one apex, each pressure relieving recess extending through one side of the compressible member and terminating short of the opposite side of the compressible member so as to define a membrane of the compressible member thereat.

A glass film laminate includes a glass film and a supporting glass. The glass film and the supporting glass have surfaces in contact with each other, and each of the surfaces has a surface roughness Ra of 2.0 nm or less.

Multi-layered flat seal, in particular a cylinder head seal for an internal combustion engine, with a first layer having at least a passage opening as well as several screw passage punch holes, at least a support ring surrounding the passage opening, and at least a second layer, which at least is provided with a bead of partially circular form, whereby the bead interacts cooperatively with the support ring and, viewed in circumferential direction, is formed by mechanical shaping with areas of different spring stiffness.

The invention discloses a burying method for a water collecting tank, water collecting pipes and subsurface drain pipes. The burying method comprises the following steps of: firstly selecting the water collecting pipes and the subsurface drain pipes satisfying specification and quantity required; then performing surface drainage; if water is accumulated in a large area on the ground to affect normal construction, removing surface water, determining a drainage scheme in accordance with specific conditions, and draining surface accumulated water out of the site by using a gasoline pump; and leveling the site and measuring the terrain: determining the gradient and the aspect of the slope in a demonstrated region, neatening the demonstrated region smoothly according to the terrain, balancing earthwork on the spot without reshipment, and then performing the burying work. The invention provides the burying method for the water collecting tank, the water collecting pipes and the subsurface drain pipes. The water collecting pipes, the subsurface drain pipes and the water tank are trenched and buried professionally in different modes, respectively, so that the burying convenience of the water collecting pipes, the subsurface drain pipes and the water tank is greatly enhanced, the connecting tightness between the water collecting pipes and the water tank is greatly enhanced, and meanwhile, the problem that the connection is excessive in rigidity is further avoided.

A method of manufacturing a footwear sole component is provided including projecting elongated pins into a mold cavity in the shape of the footwear sole component and partially filled with an expandable material including multiple unexpanded beads, and introducing steam into the cavity through ports defined by one or more cavity walls and through the pins in an internal region of the expandable material, to expand both exterior beads and interior beads in the internal region a predetermined amount. With the elongated pins, the interior beads can be expanded more, less and / or the same amount as exterior beads to provide particular physical characteristics to the component. For example, the interior beads can be fully expanded to a similar density as exterior beads, or expanded less to provide more density and rigidity in the internal region, or expanded more to provide less density and rigidity in the internal region.

A method and apparatus is provided for bucking a magnetic field of known geometry and time variation by means of a plurality of bucking loops. It utilizes multiple loops, each of which is energized by an electric current that creates a magnetic field of the known time variation. The multi-loop field forms a bucking magnetic field that better opposes the spatial variation in the known magnetic field over a volume than can the magnetic field from a single loop. The present invention is useful in electromagnetic measurements, where the magnetic field of a controlled source transmitter must be annulled at a magnetic field sensor. It is particularly useful for cases where the magnetic sensor may move relative to the transmitter, such as in certain airborne electromagnetic measurements.

A joint structure for an independent system designed to improve the maintenance performance of a rear wheel suspension. Rear wheel axles extend leftward and rearward from a final case supported by the rear portion of a body frame to independently suspend respective left and right rear wheels. The respective rear wheel axles are coupled to left-hand and right-hand joints on the left and right sides, respectively, of the final case. A driven sprocket engaging with a chain is attached to the left-hand joint and a separate holder is detachably attached to the front of the final case. A joint-part shaft of the right-hand joint is supported by the final case via a bearing and also a brake disk is attached thereto. A male-shaped joint-part shaft integrally extending from the left-hand joint is fitted into the female-shaped joint-part shaft for integrally rotatable coupling.

A joint structure for an independent system designed to improve the maintenance performance of a rear wheel suspension. Rear wheel axles extend leftward and rearward from a final case supported by the rear portion of a body frame to independently suspend respective left and right rear wheels. The respective rear wheel axles are coupled to left-hand and right-hand joints on the left and right sides, respectively, of the final case. A driven sprocket engaging with a chain is attached to the left-hand joint and a separate holder is detachably attached to the front of the final case. A joint-part shaft of the right-hand joint is supported by the final case via a bearing and also a brake disk is attached thereto. A male-shaped joint-part shaft integrally extending from the left-hand joint is fitted into the female-shaped joint-part shaft for integrally rotatable coupling.