267 results about "Neutral axis" patented technology

A plurality of golf club heads wherein the difference in spin is minimized is disclosed herein. More specifically, the present invention discloses a plurality of fairway wood type golf club head with a volume of between about 110 cubic centimeters (cc) and about 250 cc, wherein the change in backspin between any two clubs within the plurality of metal wood type golf club heads is less than about 600 revolutions per minute (rpm). A plurality of golf clubs in accordance with the present invention may generally have all of its clubs maintain a center of gravity (CG) location that is less than about 8.0 mm away from a neutral axis of the golf club head regardless of the difference in loft of the specific golf club head within the plurality of golf club heads.

A serpentine device having a proximal end and a distal end comprising a series of discs arrayed in succession and on center along a common, neutral axis, wherein the discs comprise a first and second surface; and at least one flexible interconnect extending between and connecting each disc to any succeeding disc according to a pre-determined connection configuration, wherein the interconnects are indirectly connected to one another through the discs and configured to provide torsional and bending support to each of the discs connected thereto under an applied load, thus achieving a continuum of flexibility along an entire length of the serpentine device, as well as to facilitate the torquability of the serpentine device. The serpentine device may further comprise a bendable member and at least one transfer element configured to perform one or more transfer functions, namely the transfer of energy, work, fluid, electricity, light energy, sound energy, matter, etc. from one location to another location, and particularly from a source to one or more of the discs of the serpentine device. An actuation system is also featured, which is configured to selectively actuate the discs in a pre-determined direction in three-dimensional space.

A piezo-electric actuator is provided which is capable of providing large vibration amplitude, is adjustable for resonance frequency, and has high reliability while avoiding an increase in outer dimensions.

A piezo-electric actuator comprising: piezo-electric element la having piezo-electric body 3a which is provided with at least two opposing surfaces, wherein the surfaces perform an expanding and contracting motion in accordance with the state of an electric field; a constraint member 21a for constraining piezo-electric element 1a on at least one of the two surfaces, a supporting member disposed around constraint member 21a, and a plurality of beam members 22a each having both ends fixed to constraint member 21a and supporting member 4a, respectively, wherein each beam member has a neutral axis for bending in a direction substantially parallel with the constrained surface, wherein the constraint member vibrates by vibration which is generated by the constraining effect between the constraint member and the piezo-electric element, and is amplified by the beam members.

The sag rate of fusion pipes (e.g., isopipes (<bold>13</highlight>) used in an overflow downdraw fusion process) is reduced by the application of axial forces (F) to the end regions (<bold>23</highlight>) of the pipe. The axial forces are applied to the end regions below the pipe's neutral axis (<bold>19</highlight>) so that a bending moment is generated which opposes gravitational sagging of the middle of the pipe. The use of such sag-controlling axial forces increases pipe service life by, for example, at least a third.

A control console for a machine having a seat with a plane of symmetry is disclosed. The machine also has an armrest extending from the seat in a forward direction generally parallel with the plane of symmetry. The armrest has an upper surface intended to support an operator's forearm. The control console includes a base operatively connected to the armrest, and at least one operator interface device operatively connected to the base. The at least one operator interface device has a neutral axis inclined at an oblique angle relative to the upper surface of the armrest. The at least one operator interface device is pivotal in a fore/aft direction to initiate only a single function of the machine, the fore/aft direction being rotated outward away from the seat a predetermined angle relative to the forward direction of the armrest.

A machine, such as a coordinate measuring machine, having an element and a structure movable with respect to each other along rails, wherein the rails have a different coefficient of thermal expansion than the structure to which they are attached. In one embodiment, a bar is disposed on the structure opposite the rails. This bar has a coefficient of thermal expansion, a stiffness, a spacing from the neutral axis of the structure, and a cross-sectional dimension such that the bar balances any thermal stresses in the structure caused by differential expansion or contraction of the structure and the rails with temperature changes to minimize any bending of the structure. In one embodiment, two rails are disposed on a beam, and a carriage travels on the two rails. For each rail, there is an associated bar disposed on an opposite surface of the beam. In another aspect, a pin extends into an elongated slot on a slide associated with the structure to allow the structure to expand and contact. In yet another aspect, a movable element, such as a carriage, is coupled to an associated slide riding along the rails by a leaf spring to accommodate expansion and contraction of the element.

Methods and apparatus for track members having a neutral axis rack are disclosed. In one embodiment, an apparatus for supporting a manufacturing tool relative to a workpiece includes a track assembly adapted to be attached to the workpiece and including at least one rail, the rail having a longitudinally-extending neutral axis and a rack extending along a pitch line that at least approximately coincides with the longitudinally-extending neutral axis. In alternate embodiments, the rack includes a plurality of wedge-shaped apertures or a plurality of conically-shaped apertures.

A technique for suppressing stimulated Brillouin scattering (SBS) in fibers intended to handle high powers. A fiber is embedded in an elongated embedding material to form an embedded fiber structure. The embedded fiber structure is formed either as a cantilevered beam or as one or more turns around a circular or elliptical path, and then the entire structure is deformed to apply a desired strain that varies along the fiber length and results in suppression of SBS. In one embodiment, the embedded fiber structure is deformed by applying lateral and generally diametric force across the turns of the structure, resulting in changes to its curvature. In another embodiment the embedded fiber structure initially has a helical shape, which is deformed by stretching or twisting to change its radius. In either embodiment, a desired strain profile is obtained by selecting the position of the fiber with respect to a neutral axis.

Described herein is a method to encode infrared (IR) security watermarks using a named color dictionary within a PDL in a device independent manner. A set of colors is chosen that lies within the common gamut of printing devices and then defined in a device-independent color space. For each color and output device, a metameric pair of device colorant values corresponding to minimum and maximum black (K) is obtained using inversion techniques. These extremes are selected in order to obtain the maximum perceivable IR signal. The metameric pair sets are processed to extract a smaller subset that satisfies certain criteria, including bounds on the K difference, total ink area coverage, and deviation from the neutral axis. The final data is then stored in resource files that link fixed device-independent IR color names to pairs of variable device-dependent colorant values.

A current transformer is provided. The current transformer comprises a magnetic core having a central opening, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the magnetic core, one or more coils disposed on the magnetic core along a magnetic neutral axis of the magnetic core and one or more coils disposed on the magnetic core along a reference axis, wherein the reference axis is substantially perpendicular to the magnetic neutral axis.

A transmission belt is described which comprises a body made of a first elastomeric material, a plurality of teeth and a plurality of longitudinal cords buried in the body of the belt and a back. The belt has a working surface on said teeth and the working surface is at least partially covered by a covering made of a plastic and/or metal material. Defining the area comprised between the plane defined by the neutral axis of the cords, the working surface and the median transverse planes of two adjacent teeth as the unitary longitudinal section, the covering preferably occupies at least 25% of the unitary longitudinal section.

A flexible shunt in the form of a flexible member made up of a stack of electrically conductive laminations each of a thickness of no more than about 0.002 inch (0.051 mm) has a moveable end secured by a moveable mount to a moveable contact support of an electric power switch for movement along a linear path. A fixed mount secures the fixed end of the flexible member to a fixed conductor termination spaced laterally from the moveable end along a neutral axis perpendicular to the linear path of the moveable end by an offset distance such that the installed length of the intermediate section between the fixed and moveable ends is less than the free length of the intermediate section. With this arrangement the stroke of the moveable end along the linear path can be up to at least ⅓ and even ½ of the free length of the intermediate section of the flexible member and with very low operating forces.

A current transformer is provided. The current transformer comprises an inner magnetic core having a central opening, an outer sense core circumscribing the inner magnetic core, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the inner magnetic core, and one or more coils disposed on the inner magnetic core, the outer sense core, or both, in a magnetically balanced configuration relative to a magnetic neutral axis of the inner magnetic core.

The invention provides a tracked vehicle electric driving device with a straight driving power-assisted mechanism. The tracked vehicle electric driving device comprises a driving motor, a steering motor, a first reducing planet gear set, a second reducing planet gear set, a straight driving gear shift mechanism, a gear shift spindle, a neutral axis, a left neutral axis drive, a right neutral axis drive, a left confluence planet gear set, a right confluence planet gear set, a steering/driving motor, the straight driving power-assisted mechanism and a steering power-assisted mechanism, wherein the steering/driving motor is used for providing a second power source for driving a vehicle to steer and/or straight drive; the straight driving power-assisted mechanism is used for transferring power between the steering/driving motor and the gear shift spindle; the steering power-assisted mechanism is used for transferring power between the steering/driving motor and the neutral axis. The electric driving device provided by the invention is provided with the driving motor and the steering motor based on the characteristic of the actual use condition of a high-maneuverability tracked vehicle, and the steering/driving motor provides assisted power for the driving motor and the steering motor respectively through the straight driving power-assisted mechanism and the steering power-assisted mechanism and can provide low-speed driving power when the driving motor or the steering motor has a fault, so that the tracked vehicle electric driving device has relatively high vehicle steering performance and system fault-tolerant capability.

The invention discloses a dual-direction pre-tensioning system prestressed concrete track slab, which comprises a rectangular track slab body, wherein the track slab body is provided with a reservation structure, an upper layer steel wire net, a longitudinal reinforced bar layer, a transverse reinforced bar layer, a longitudinal reinforced bar layer and a lower layer steel wire net are sequentially arranged at intervals inside the track slab body along the thickness direction from top to bottom, steel bars inside the longitudinal reinforced bar layer extend in the length direction of the track slab body, steel bars inside the transverse reinforced bar layer extends in the width direction, the steel bars both in the longitudinal and the transverse reinforced bar layers are arranged at intervals, the transverse reinforced bar layer is arranged on a neutral axis of a cross section of the track slab body, and the two longitudinal reinforced bar layers and the upper and the lower steel wire nets are symmetrically and horizontally arranged relatively to the neutral axis of the cross section; and the prestressed concrete track slab is pre-tensioned along the length direction and the width direction, and the steel bar is of a prestressed steel bar. The dual-direction pre-tensioning system prestressed concrete track slab has simple structure and can strengthen the strength of the track slab.

The invention relates to a method for measuring the flexural rigidity of an immersed tube tunnel joint. The method comprises the following steps: 1, applying an axial external water pressure N0 to the immersed tube tunnel joint as an external force applied to a position having a distance of an initial eccentric throw e0 to the neutral axis of the immersed tube tunnel joint; 2, continuously applying prestressed cable pretensions T1 and T2 to the immersed tube tunnel joint; 3, measuring the displacement S0 and the corner theta of a GINA waterstop under the action of N0, T1 and T2; 4, using an immersed tube tunnel joint structure simplification model established by a steel plate and a spring element to calculate the compression amount SF1 and SF2 of the GINA waterstop, the prestressed cable extension amount ST1 and ST2 at a top board and a bottom board, the pressures F1 and F2 of the GINA waterstrop of the top board and the bottom board, and the pulling forces T1 and T2 of the prestressed cables of the bottom plate; and 4, calculating according to a force balancing equation to obtain the flexural rigidity Ktheta of the joint. Compared with the prior art, the method provided by the invention improves the design level and efficiency of the performance of the immersed tube tunnel joint.

A medical device configured for diagnosis or treatment of tissues within a body is provided. The device includes an elongate, deformable member configured to be received within a lumen in the body and having proximal and distal ends. A position sensor is disposed at the distal end. In one embodiment, a conductor is wound about the member. The conductor is connected to the position sensor and has a first winding pitch over a first portion of the deformable member and a second winding pitch, different from the first winding pitch, over a second portion of the deformable member. In another embodiment, the member defines a neutral longitudinal axis extending between the proximal and distal ends. A conductor extending between the proximal and distal ends is connected to the position sensor at a connection node on the neutral axis.