1170results about How to "Easy to brake" patented technology

A fixing device adapted to connect a rod and a nearby spherically symmetrical screwhead, including a first longitudinal member (14) having a first surface (16) and a second surface (20), a first end (18) of said first surface (16) being adapted to be pressed against said screwhead (10) and a middle part (22) of said second surface (20) being adapted to bear against a portion of said rod (12), and a second longitudinal member (15) adapted to co-operate with said first longitudinal member (14), whose first end (35) is adapted to be pressed, opposite a portion of said first end (18) of said first surface (16) of said first part (14), against a second hemispherical part (38) of said screwhead (10) opposite the first (29) and whose middle portion (36) is adapted to bear against a portion (34) of a second part of said rod (12) opposite the first part.

An apparatus and method for aligning and imaging a body part which immobilizes the body part within a stereotactic body localization system having an imaging resolver fiducial localizer for precise imaging and localization of the body parts within the apparatus. Both anterior and posterior immobilization methods can be used. A continuous array of coupled fiducials is employed with at least one pair formed in a pi/2 horizontal linked sine and cosine wave fiducial pattern.

A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual value, reaction measures are initiated. The maximum permissible value is filtered at least in one operating state in accordance with filter means including a filter and a dead zone member. Furthermore, the maximum permissible value is continuously reduced in dependence upon the approaching of at least one quantity to a limit value. This quantity represents an operating state.

The present invention concerns a novel means by which chemical preparations can be made. Reactions can be accelerated on special chips using microwave energy. The chips contain materials that efficiently absorb microwave energy causing chemical reaction rate increases. The invention is important in many small scale chemical transformations including those used in protein chemistry and in combinatorial chemistry.

The invention relates to a two-stage cadence braking master valve (type V), which comprises an upper valve body, a middle valve body and a lower valve body, wherein the upper valve body and the middle valve body are connected, sealed and fixed by a piston cylinder body; the upper edge of the lower valve body and the lower edge of the middle valve body are matched, nested, sealed and fixed; an upper piston assembly and a lower piston assembly are respectively arranged in the piston cylinder body and the middle valve body; an upper valve assembly and a lower valve assembly are respectively arranged in the middle valve body and the lower valve body; an inlet hole and an outlet hole are respectively arranged on the side surfaces of the middle valve body and the lower valve body; and the upperpiston assembly comprises an upper piston, a spring kit clamp and a mandril base. The braking master valve can generate sudden energy in the weak pressure phase at the beginning of braking, can promote rapid and powerful combination between a brake pad and a friction sheave to always maintain in a good combination condition and ensure a favorable braking effect. Meanwhile, the friction between the brake pad and the friction sheave can be reduced to the minimum extent, the brake pad is prevented from carbonizing and the service life of a braking system is prolonged.

The present invention discloses combined brake controlling system and method for electromobile. The system includes combined brake ECU, braking pedal displacement sensor, proportional valve, master cylinder oil pressure sensor and wheel cylinder oil pressure sensor. The brake signals the brake pedal displacement sensor and the master cylinder oil pressure sensor acquire are fed to the combined brake ECU, and the combined brake ECU synthesizes and judges to obtain total brake requirement, acquires the available maximum electrically brake moment from the motor ECU to obtain the required hydraulic brake and outputs control signal to the proportional valve for outputting the hydraulic brake force, so as to realize the combined braking of electric braking and hydraulic braking. The present invention has the brake effect and feeling the same as that of traditional process, maximum energy recovery, high operation performance, high brake effect and high energy utilization efficiency.

A method for preparing a class of highly stabilized and soil-dispersible nanoparticles and using the nanoparticles as a remediation technology for immobilizing toxic metals at toxic metal contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the nanoparticles in a liquid carrier, and results in suspensions of nanoparticles of desired size and mobility in water, soils or sediments. The stabilizer can facilitate controlling the dispersibility of the nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the nanoparticles can immobilize one or more toxic metals of the contaminated site.

Systems and methods convey a closure material into a catheter, e.g., to seal a puncture site in a blood vessel. The closure material comprises a mixture of first and second components, which, upon mixing, undergo a reaction to form solid closure material composition. The first component may be a lyophilized polyethylene glycol (PEG) material contained within a vial. The second component may be a buffered albumin solution plus water contained within a syringe. An applicator provides easy and effective mixing of the components and delivery of the mixture to the puncture site.

One embodiment of present invention is a segmented instrument having braking capabilities that includes an elongate body having a plurality of links and a hinge connecting a pair of adjacent links in the plurality of links. There is also brake assembly coupled to each link in the pair of adjacent links and positioned to span the distance between the pair of adjacent links. Another embodiment of the present invention is a segmented instrument having a plurality of links and at least one lockable and articulatable joint positioned to connect a pair of adjacent links in the plurality of links. In addition, the at least one lockable and articulatable joint is adapted and configured to increase the number of frictional surfaces available between the pair of adjacent links. There are also provided methods for controlling a segmented instrument. Exemplary steps of the method include introducing a segmented instrument into a patient where the segmented instrument has a plurality of links wherein adjacent links are joined by a hinge. Next, there is the step of manipulating the links about the hinges to maneuver the segmented instrument to provide access to a surgical site within the patient. In one aspect, the manipulating step produces a sliding motion between a plurality of complementary shaped components within a portion of a brake assembly between adjacent links. Next there is the step of actuating the brake assembly to substantially prevent movement about the hinge of the links attached to the braking mechanism.

The invention discloses a friction material of a disc brake pad. The friction material comprises the following raw materials in parts by weight: 13-18% of cashew nut shell oil-modified phenolic resin, 9-16% of butyronitrile rubber powder, 3-7% of steel wool fiber, 6-11% of calcium sulfate whisker, 2-5% of potassium feldspar powder, 3-6% of graphite, 2-6% of brown fused alumina, 3-5% of antimony sulfide, 11-16% of baryta powder, 5-9% of chromite powder, 6-11% of heavy calcium carbonate, 2-4% of zircon sand and 3-6% of brass powder. Visibly, in the preparation raw materials, the cashew nut shell oil-modified phenolic resin is adopted for replacing ordinary phenolic resin as an organic carrier of a brake pad material, so that the shortcomings of poor resistance to thermal ablation, high abrasiveness, low anti-impact strength and the like of the ordinary phenolic resin are eliminated, the performance defects of the friction material of the disc brake pad caused by the ordinary phenolic resin can be avoided, and the overall performance of the friction material of the disc brake pad can be further improved.

The invention relates to a two-stage foot braking master valve (I type) which comprises an upper valve body and a lower valve body, wherein both the upper valve body and the lower valve body are provided with an air inlet hole and an air outlet hole, the lower edge of the upper valve body is inserted into the upper edge of the lower valve body, an upper piston assembly is installed at the upper part in the upper valve body, the upper piston assembly comprises a piston bush, an upper piston, a spring package clip and an ejector pin seat, the inside and the outside of the spring package clip are respectively provided with a pressure intensity spring and a steady pressure spring, a certain distance is reserved between the upper part of the pressure intensity spring and the lower surface of the wide disc of the ejector pin seat, and the distance enables the valve to produce a secondary pressure intensity to quickly and powerfully combine a brake block and a brake drum so as to maintain a favorable combination condition all the time and ensure a favorable brake effect all the time. Simultaneously, the friction between the brake block and the brake drum can be decreased to the greatest extent, and the brake block can be prevented from being carbonized so as to prolong the service life of the brake.

The invention relates to a three-level balance piston assembly, which comprises a balance piston, a spring wrapping clamp and a top rod base. The three-level balance piston assembly has the braking output characteristic of a 'three-step' curve, wherein three steps are named as 'three-level cadence braking'. According to the 'cadence braking' principle, compressed air can form pulses in a control pipeline and an air chamber to act on a brake pad, and an effect of acting on the brake pad by the pulses every time is equivalent to an effect of wiping the brake pad once by using a tool. Therefore, by the three-level balance piston assembly, a brake hub can be bonded with the brake pad forcefully, and the carbonization or an enamelum layer of the brake pad is also improved to a maximum degree, so that poor braking is avoided to achieve an excellent braking effect.

The invention discloses a braking method for mistakenly stepping on an accelerator during braking, and a braking device using the method and suitable for a situation when the accelerator is mistakenly stepped on during braking. The braking method compares the time Tx required by the accelerator to move from a starting position to an ending position with the preset time T for judging the mistaken stepping on the accelerator so as to judge whether the accelerator is used as a brake; the braking device suitable for the situation when the accelerator is mistakenly stepped on during braking has high working efficiency and precise and scientific monitoring process, judges whether the accelerator is mistakenly stepped on by measuring the time for the accelerator to change at two limiting positions, can also improve the capability of resisting the disturbance of the device, and greatly ensures the stable running of the braking device; simultaneously, an electric structure is adopted to improve the response speed of the device; and compared with the mechanical structure in the past, the braking device not only has high response speed, but also has a simple structure and excellent braking effect, and provides safer and more reliable guarantee for vehicle running.

The invention belongs to the technical field of automobile energy-saving equipment, and relates to a regenerative braking energy storage device for an electric automobile. An ultracapacitor module stores the regenerative braking feedback energy of the electric automobile and is connected in parallel with a storage battery to power an electric motor when the electric automobile starts and accelerates; an ultracapacitor charge-discharge controller is electrically connected with the ultracapacitor module, the storage battery and the driving controller respectively; the ultracapacitor charge-discharge controller is electrically communicated with the ultracapacitor module to control the charge-discharge process; and the driving controller is electrically communicated with the electric motor to achieve control operation of the electric motor. According to the invention, ultracapacitors store the regenerative braking feedback energy of the electric motor car to prevent adverse effects on the power supply of the electric automobile due to frequent charge and discharge, so as to achieve a long service life, and the ultracapacitors have high power density and good dynamic response.

The invention discloses a braking device of an electric block, which consists of a motor braking mechanism, a speed reducer braking mechanism and a winding drum forcible braking mechanism, wherein the winding drum forcible braking mechanism comprises a speed sensing disk connected with a protruding end of a winding drum output shaft, a speed sensor for sensing the rotating speed of the speed sensing disk, a rotating speed electric control part connected with the speed sensor, a ratchet wheel and a pawl mechanism of which the motion is controlled by the rotating speed electric control part; the ratchet wheel is fixedly connected to opposite ends of the speed sensing disk of a winding drum; and the position of the pawl mechanism is adapted to the ratchet wheel. By adopting the structure, the braking device of the electric block increases the safety coefficients of the electric block, can keep good braking performance of the electric block for a long time, and avoids the phenomena that the electric block injures on-site workers or breaks lifted goods in work.

A diaper or adult incontinence garment including a backsheet and a sublayer. The sublayer may include one or more acquisition layers and one or more regions having a multitude of through or blind holes. The sublayer may isolate feces away from the skin and at the same time provide liquid acquisition. Certain regions of the sublayer may have a total open area of from 10% to 50% of the total surface area of the sublayer. The holes have an average smallest dimension of at least 3 mm. The sublayer has an average caliper of from 2 mm to 6, and an average caliper loss after wetting and under pressure of 0.3 psi of less than 20%.