150results about How to "No risk of damage" patented technology

A method of installing a safety railing in a building under construction by providing post supports comprising open-topped post sockets on socket supports, mounting the post sockets on a concrete floor formwork with the post sockets spaced above the concrete floor formwork by the socket supports and casting concrete to form a concrete floor on the concrete floor formwork and thereby embedding the post supports in the concrete floor with the concrete extending beneath the post sockets. The lower ends of posts are then inserted into the post sockets to support the posts above the concrete floor and rails are supported on the posts.

Disclosed is a wood flooring containing laminated wood and high-density fiberboard using a symmetric structure and a process for manufacturing the same. The wood flooring includes a high-density fiberboard core layer and an upper laminated wood layer and lower laminated wood or veneer layer symmetrically stacked about the high-density fiberboard core layer to achieve a stable structure, and the lower laminated wood or veneer layer has a density of 100±30% of that of the upper laminated wood layer to keep the balance therebetween. With this configuration it is possible to completely eliminate deformation problems caused by variation of environmental conditions such as temperature, humidity, etc., and to impart the natural texture of raw lumber and high durability to the flooring surface.

The invention relates to a treatment method for forming a composite surface. The method comprises the following steps: providing a workpiece, wherein the workpiece is an aluminum-containing metal shell, and comprises an outer surface and an inner surface; carrying out a machine processing treatment on the workpiece; forming a fixation part on the inner surface of the workpiece, forming at least an electrode conduction hole on the fixation part, carrying out a primary anode treatment on the workpiece, forming an oxidation film with a first color on the surface of the workpiece, adopting the machine processing manner to remove part of the oxidation film on the fixation part, and removing part of the oxidation film on the outer surface of the workpiece; carrying out a secondary anode treatment on the workpiece, and forming an oxidation film with a second color on a position on the outer surface of the workpiece, wherein the oxidation film is removed from the position on the outer surface of the workpiece; and removing the fixation part. With the treatment method, a surface of a metal workpiece can obtain oxidation films with different colors.

This invention relates to a device for measuring the position of a piston (2) in a cylinder (1), extending according to an axis, the device comprising at least two position sensors (3,4) respectively comprising: a first sensor member (20,40) integral with a supporting pallet (31) linked to the piston (2), a second sensor member (10,30) integral with the cylinder (1), the first and second members of each sensor being arranged for being mobile in translation one relative to the other, along an axis parallel to the axis of the cylinder (1), the device being characterized in that the first sensor members (20,40) are integral with the same supporting pallet (31) being linked to the piston (2) by a ball joint link (50). Using the device of this invention, a position sensor can be arranged in the cylinder, without having the transversal strains on the piston being transmitted to it, while the piston remains free in rotation about the axis of the cylindrical barrel.

A removable gripping device for a container has two clamp-forming members which are mounted to a gripping body, one of which can move longitudinally between an open position and a closed position; movement elements which are designed to move the aforementioned mobile member; and actuation devices which can move in relation to the gripping body. The above-mentioned actuation devices are mounted so as to move longitudinally between a rest position and an actuation position, whereby the actuation devices cause a lever to move from the retracted position to the deployed position thereof.

The invention discloses a universal circuit board clamp. The clamp comprises two pedestals of the same structure, the two pedestals are arranged in mirror symmetry, each pedestal is provided with one or more fixing assembly for fixing a circuit board, the circuit board is vertically fixed between the two pedestals via the fixing assemblies, each fixing assembly comprises a fixed block, a movable block and an adjusting screw, the fixed block is fixed on the pedestal and used to fix the upper end of the circuit board, and the movable block sleeves the adjusting screw, rises or falls with rotation of the adjusting screw, and is used to fix the lower end of the circuit board when being adjusted to a proper position. The universal circuit board clamp is simple and compact in structure, convenient and rapid in operation, high in university and high in stability.

The invention discloses a circuit module and a manufacturing method thereof. The circuit module comprises a printed circuit board, a package chip and a switch tube, wherein the package chip and the switch tube are arranged on the printed circuit board, the package chip comprises a chip, a first plastic package layer and a plurality of metal posts, the first plastic package layer covers the chip, each metal post comprises a first end and a second which are opposite to each other, the first end is in contact with the chip, and the second end is exposed out of the first plastic package layer. Thepackage chip in the circuit module employs the metal posts to external electrical connection, so that the package area is reduced, and the reliability is improved.

The invention relates to an anti-friction bearing (1) having a bearing outer ring (3), a bearing inner ring (5) and a plurality of rolling bodies (9) which are arranged between the bearing outer ring (3) and the bearing inner ring (5), are held at predefined spacings from one another by a bearing cage (15) and roll on raceways (7a, 7b) of the bearing rings (3, 5), of which at least one raceway is delimited by a rim (13), wherein the bearing cage (15) has two cage side rings (17a, 17b) and a plurality of cage webs (19) which connect the cage side rings (17a, 17b), and in which at least one guiding and holding element (23) extends from the bearing cage (15) towards the rim (13) and engages axially behind the rim (13). According to the invention, at least one opening (27) is formed in one of the cage side rings (17b), in which opening (27) the at least one guiding and holding element (23) is fastened. As an alternative to this, in an anti-friction bearing (1') according to the invention, an additional ring (33) is fastened to one of the cage side rings (17b), with which additional ring (33) the guiding and holding element (23) is formed in one piece. The proposed construction avoids the risk that the guiding and holding element (23) is damaged during the assembly of the anti-friction bearing (1).

The invention provides a torque wrench provided with a locking device. The torque wrench provided with the locking device comprises a hollow main rod body, an adjustment handle and the locking device. The locking device moves in the axial direction between a locking position and a non-locking position along the main rod body. The locking device can limit the rotation, relative to the main rod body, of the adjustment handle when located in the locking position. The adjustment handle can rotate relative to the main rod body when the locking device is located in the non-locking position, so that torsion adjustment is conducted. Sounds can be produced when the locking device is adjusted and switched between the locking position and the non-locking position.

The invention discloses a method for testing wireless performance of a wireless product. A circuit board of the wireless product comprises a wireless chip, a RF link and an antenna. The method comprises the following steps that (1), a bonding pad between the RF link and the antenna is disconnected when the circuit board is produced, tin paste is brushed on the bonding pad which is connected between the RF link and a wireless testing point; (2), automatic tin connection can be conducted on the bonding pad between the RF link and the wireless testing point by controlling furnace temperature after the circuit board passes through a furnace through an SMT; (3), soldering iron is used for disconnecting the tin connection between the RF link and the wireless testing point after a test is finished, and the soldering iron supplement tin is used for connecting the bonding pad between the RF link and the antenna. The method for testing wireless performance of the wireless product has the advantages of being low in testing cost and reliable in testing results.

Vibratory tip (100) comprising a body (110) having a first end (111) adapted to be mechanically coupled rigidly with a surgical handpiece (101) generating vibrations and a second end to which there is fixed a tool holder (112) intended to reproduce the vibrations transmitted by the handpiece. The tip furthermore comprises a tool (120) comprising a working area (121). In accordance with the invention, the tool (120) is mounted able to rotate freely with the tool holder (112), which allows the tool to adjust itself automatically in order to remain in contact with the tooth and position the working area on the entire periphery of the tooth with a single tip. The tool preferably comprises two working areas to improve keeping and guiding the tool on the surface of the tooth to be treated.

The invention relates to a safety belt retractor comprising a two-part belt shaft comprising a first part (1) of the belt shaft on which the safety belt (2) is wound and a second part (5) of the belt shaft that can be blocked opposite a housing (8) of the safety belt retractor attached to the vehicle frame; and the safety belt retractor also includes a load limitation device (3) arranged between the first (1) and the second (5) part of the belt shaft, wherein the first (1) and the second part (5) of the belt shaft overlap each other axially at least in sections and a bearing ring (13) is provided in the region of the overlap.

Provided herein are multicomponent shield can(s) for temporary heat storage and junction temperature regulation using a phase change material (PCM) contained therein. Invention articles can be applied to most electronic devices, especially to small portable electronic devices such as cell phones and tablets.

The invention discloses a method for measuring micron-order depths of pits of a component. The method comprises the following steps: firstly, manufacturing a standard depth sample block with a plurality of pits with different micron-order depths; secondly, measuring the depths of the pits by using a microscope, and recording focusing scale differences J2-J1 corresponding to a focusing knob of the microscope to make a standard depth sample block scale reference table: by amplifying the microscope multiple, measuring the horizontal distances h of planes, namely depths of reference planes of the pits, measuring till arc contours of the pits are clear in the reference planes and recording focusing scales J1, measuring again till bottom contours and the arc contours of the pits are equally clear and recording focusing scales J2, and obtaining the focusing scale differences J2-J1; finally, by comparing with the standard depth sample block scale reference table, finding out the depths of the pits of the component to be measured. The method is easy to operate; by the method, various tiny depths can be measured to a micron-order precision and the accuracy and the traceability of data are improved.

The invention relates to a fire extinguishing tool, and in particular, discloses a halohydrocarbon gas fire extinguishing system with safety additives. The fire extinguishing system comprises halohydrocarbon fire extinguishing agents and the safety additives, and a safety additive mixer capable of mixing the halohydrocarbon fire extinguishing agents with the safety additives in proportion, whereinthe safety additives are inorganic alkali metal weak-alkalinity salt and / or water solution of organic weak-alkalinity compounds. The inorganic alkali metal weak-alkalinity salt and / or the water solution of the organic weak-alkalinity compounds are adopted as the safety additives to realize efficient absorption of acid poisonous gas generated by the halohydrocarbon fire extinguishing agents. Meanwhile, the inorganic alkali metal weak-alkalinity salt contains alkali metal ions, and can absorb combusted free radicals, so that the overall fire extinguishing effect of the fire extinguishing systemis further improved. The fire extinguishing system is suitable for wide application to the electric fire prevention for transformers, cable tunnels, valve halls and power distribution chambers.

The invention provides an ink box for an ink-jet printer. The ink box comprises a box cover, a box body and a lighting device; and an integrated circuit chip is assembled on the box body and is electrically communicated with the lighting device. The ink box for the ink-jet printer is simple in structure, and can be accurately and reliably distinguished when being arranged on the ink-jet printer.

The insert needle assembly includes a support (2), and several guide needles (3) arranged on the support. Each needle is provided with an offset drive (5), and a drive unit (6) is electrically connected with the offset drive. The drive unit is detachably connected to the support and to the offset drive by the spring contacts including a contact surface (33) on which the drive unit is formed. The guide needle is pivotably connected to the drive unit by the mechanical abutment (25). An independent claim is included for jacquard guide bar.

The invention relates to a radome (1) for an aircraft and, specifically, to a device for connecting said radome to the structure of said aircraft. The radome that is the subject matter of the invention includes a plurality of locking units suitable for engaging the opposing surfaces of the fuselage (10) of the aircraft and the radome (1), each unit comprising: a locking means (20) suitable for exerting a tractive force on the surface of the fuselage, substantially normal to the latter, by means of the attachment means; a centring means suitable for passing on the shearing forces substantially tangential to the opposing surfaces of the fuselage and the radome; the locking means (20) being placed so as to be located inside the resulting stress cone on the centring means in order to minimise the bending strain generated by assembly in the radome (1).

A substitution device for replacing a turbojet type of aircraft engine, with a nacelle comprising protective covers, and a support mast having two engine mounts, each of said protective covers being mounted to pivot between an open position and a closed position, said substitution device comprising a body, two anchors attaching to the engine mounts of the engine support mast, and bearing portions adapted to receive support portions belonging to the protective covers. A method for installing such a substitution device in a nacelle, which makes it possible to close the engine covers and authorize the movement of the aircraft.

The invention discloses a clothes drying device. The clothes drying device comprises a substrate, an atomizer and a draught fan component. The substrate is used for airing and hanging clothes, and is provided with a mounting part, the atomizer is arranged on the mounting part to break moisture on the clothes to form water mists, and the draught fan component is arranged at one side of the substrate and arranged to be close to the substrate to blow away the water mists around the clothes on the substrate. According to the clothes drying device, when the clothes needs to be dried, the clothes is hung on the substrate, the moisture effect of the atomizer on the clothes continuously changes the moisture into the water mists, the draught fan component blows away the water mists around the clothes, the clothes can be dried without being supplied with thermal energy, the work efficiency is high, in the clothes drying process, the elapsed time is short, the speed is high, the electricity consumption is small, the clothes drying device is simple in structure and low in production cost, and the risk that the clothes and textiles are damaged does not exist. The clothes drying device is simple in structure, low in elapsed time and good in clothes drying effect and user experience, and saves energy sources.