73results about How to "Delayed slope" patented technology

A proportional valve is disclosed for controlling the outlet pressure of a fluid flowing therethrough. The valve comprises a valve body having an inlet port and an outlet port for the fluid. The valve also has an inner chamber, within which there is formed a valve seat that may be opened and closed variably by a shutter axially movable from and towards the valve seat. Movement of the shutter is controlled by a shape memory alloy (SMA) actuating member operating antagonistically to an elastic member, the temperature of the fluid being lower than the transition temperature of the shape memory alloy. The actuating member and the elastic member are connected to the body valve at opposite sides relative to the valve seat. A power control circuit is also provided for circulating an electric current through the actuating member so as to heat the same by Joule effect from a temperature lower than the transition temperature to one that is higher. At least one vent hole is formed in the valve body for putting a portion of the chamber upstream of the valve seat into fluid communication with the outside or a collection network. The actuating member is housed in that portion of chamber corresponding to the inlet port of the fluid, whereby a continuous flow of fluid around the actuating member is ensured for accelerating the cooling process. A closed-loop control circuit for the power control circuit controls the circulating current as a function of a pressure signal generated by fluid pressure sensing means and in such a way as to offset the retarding effect produced by the fluid during heating of the actuating member.

Tissue products are disclosed having desirable strength, stretch and softness properties. In particular, the tissue products exhibit relatively high strength while still having a relatively low stiffness and a significant amount of stretch. The tissue webs generally comprise uncreped through-air dried webs. In accordance with the present disclosure, the webs are formed in a through-air drying process in which the transfer fabric and the through-air drying fabric are both textured fabrics having a substantially uniform high strain distribution in the cross-machine direction. Various improvements in properties in the cross-machine direction are exhibited by deforming or molding a tissue web against one or more of the fabrics during the tissue making process.

An image sensor comprises an active pixel sensor (APS) array, a first analog-to-digital converter (ADC), and a ramp signal generator. The APS array has includes a plurality of pixels of arranged in a second order two-dimensional matrix, and wherein the APS array generates a reset signal and an image signal for each pixel of selected columns. The first ADC has includes correlated double sampling (CDS) circuits for each column of the APS array, and wherein the first ADC generates a digital code corresponding to the difference between the reset signal and the image signal using an output ramp signal that is applied to the CDS circuits for each column. The ramp generator generates the output ramp signal in which a low illumination portion and a high illumination portion have different slopes.

A low-k dielectric material with increased cohesive strength for use in electronic structures including interconnect and sensing structures is provided that includes atoms of Si, C, O, and H in which a fraction of the C atoms are bonded as Si—CH3 functional groups, and another fraction of the C atoms are bonded as Si—R—Si, wherein R is phenyl, —[CH2]n— where n is greater than or equal to 1, HC═CH, C≡CH2, C≡C or a [S]n linkage, where n is a defined above.

An airfoil, a fan assembly and an unducted contra-rotating fan engine include fabricating at least one airfoil including a suction and a pressure side coupled together at a leading and a trailing edge and extending therebetween. The airfoil includes a plurality of chord sections having a chord length. The airfoil including a tip profile defining a reducing slope extending from the leading edge at the tip portion along at least a portion of the chord length. The tip profile is configured to reduce the high unsteady pressure near the tip portion of the airfoil.

The buffer arrangement according to the invention comprises a slide path (6) for a workpiece carrier (3). Preferably, the slide path (6) is coil-like wound and supported on a central column (15). The slide path (6) comprises preferably at least one slide track (7, 8) and possibly one or several guide tracks (9, 10). The workpiece carriers (3) slide on the slide tracks (7, 8) preferably with the front sides of the centering and clamping bolts disposed on the slide tracks (7, 8).

A nonvolatile memory device includes a nonvolatile memory cell array including a plurality of nonvolatile memory cells connected to a plurality of word lines, a word line voltage generator configured to generate first and second sequences of voltage pulses. The device selectively supplies one of the first and second sequences of voltage pulses to a selected one of the word lines to program the nonvolatile memory cells connected to the selected word line. A slope of at least one voltage pulse of the first sequence of voltage pulses is greater than a slope of at least one voltage pulse of the second sequence of voltage pulses. In general, the first sequence is applied to word lines far away from the string select line (SSL), and the second sequence is applied to word lines that are close to the SSL.

The invention provides a method of controlling the pressure applied to a substrate being printed by a thermal transfer printing head. The head displacement facility includes a resilient member such as a spring which undergoes deflection as the print head engages the substrate. The method comprises monitoring both print head position and spring deflection to control the pressure applied by the print head.

This invention is a tailgate for a pickup truck having a unibody frame that is pivotally secured at its lower end proximal the rear end of the truck bed. The frame includes a pair of linear risers that fit into the rear vertical recesses of the sidewalls of the truck when the tailgate is in a closed position. The risers support a plurality of bowed lateral beams that extend outwardly from the rear of the truck to extend the length of its cargo bay when the tailgate is in its closed. The bowed beams support a set of flat angled ramps that are aligned with the truck bed. The tailgate is swung to an open position so that the ramps extend down from the truck bed and are joined by a detachable ramp to form one or more low incline ramps for loading and unloading items into the cargo bay.

One embodiment of the present invention is a main rotor helicopter blade for generating higher lift with less drag and delaying stall at high Mach numbers. A cross-section of this blade includes aft camber. The difference between a chord line of the cross-section and a camber line of the cross-section increases from a leading edge of the cross-section to a maximum between a trailing edge of the cross-section and a midpoint of the chord line and decreases to the trailing edge producing the aft camber of the blade. The aft camber generates higher lift with less drag and delays stall at high Mach numbers.

In one embodiment, a hiking boot attachment is provided that assists in the descent of slopes. The hiking boot attachment includes a platform that engages the underside of a mid-portion of a sole of a hiking boot, in a region under a ball of a hiker's foot. A strap system is attached to the platform and secures the platform to the hiking boot. Further, one or more supports are secured to the platform. The one or more supports each have a portion that extends downward from a bottom face of the platform to engage the ground and lift the platform above the ground. This may reduce incline of the hiking boot when descending a slope. The portions of the one or more supports that engage the ground deliver downward force to regions of ground disposed to lateral sides of the hiking boot, to promote stability.

A supersonic inlet employs relaxed isentropic compression to improve net propulsive force by shaping the compression surface of the inlet. Relaxed isentropic compression shaping of the inlet compression surface functions to reduce cowl lip surface angles, thereby improving inlet drag characteristics and interference drag characteristics. Supersonic inlets in accordance with the invention also demonstrate reductions in peak sonic boom overpressure while maintaining performance.

Disclosed is a PDP driving method which may include generating subfield information that shows ON / OFF states of discharge cells from among a plurality of subfields from input image signals, generating address information that shows ON / OFF states of the discharge cells per subfield from the subfield data, counting the number of the discharge cells that are ON from among the discharge cells from the address data, and controlling a waveform applied during a reset period of a subsequent subfield.

A winch bar for use together with a strap winch to tighten a load-securing strap for a flatbed truck or trailer. In addition to an offset angle, the winch bar also includes one or more compensating angles establishing an obstacle clearance area defined by a laterally offset portion of the winch bar.

A landing gear includes a shock absorber having first and second elements slidable relative to each other, the slidable elements defining an inside volume which is filled in part with hydraulic fluid so as to leave a first chamber filled with gas under pressure and located at the end of one of the slidable elements. A vessel filled with gas under pressure is housed in the end and is provided with a shutter member that is initially in a closed state and that is suitable for taking up a stable open state when the pressure in the first chamber exceeds the pressure in the vessel by a predetermined threshold amount.