42results about How to "Safe and durable" patented technology

A bag cutter for opening a sealed package using at least one of a blade and a piercer. Preferably, at least one blade is disposed partially within a cutout of an arm in a manner that exposes an edge of the blade. A piercer can comprise an extension of a cutout edge or be located on any other suitable portion of an arm. Another blade can be provided that is substantially perpendicular to the blade within a cutout, and juxtaposable against a cutting surface.

A valve spring compressor apparatus and method for compressing cylinder valve springs for the removal and installation of their locks or keepers and for replacement of valve stem seals or broken springs on an internal combustion engine, while the cylinder head is mounted on the engine or supported on a work bench. A compressor tool adjustably mounted on a support assembly temporarily secured over the cylinder head has a pivoting hand lever and spring biased push rod which, when manually depressed, moves a compressing member at the bottom of the push rod downward to engage and depress the valve spring and its retainer to gain access and removal of the lock or keeper though openings in the compressor tool.

A pure wooden laminated board and an aluminum-wood composite laminated board device with application of the pure wooden laminated board, having a plurality of pure wooden boards, a first pure wooden side board, a second pure wooden side board, and a plurality of screws and nuts. Each of the pure wooden boards has a laminating side. The laminating sides are each provided with an expansion joint and a plurality of screw holes, and adhesive is applied to the laminating sides; each of the pure wooden boards is aligned and laminated to form into an integrated pure wooden laminated board assembly. The screws are engaged with the respective screw holes of each of the pure wooden boards, and the screws are fastened by the nuts; each of the pure wooden side boards is provided on the respective laminating sides at two sides of the pure wooden laminated board assembly.

An anti-rapid drop bicycle rack and its joint in which the joint provides an anti-rapid drop function. The joint includes a holder block having two upright plates and a guiding hole on each upright plate, and a swing assembly including a hollow body, a mount, an actuating rod, a handle, an interference member and a spring. The bottom edge of each guiding hole defines a standing positioning groove at the front side, an inclined positioning groove at the rear side, and an intermediate positioning groove between the standing positioning groove and the inclined positioning groove. The interference member is elastically abutted against the groove bottom of one of the standing positioning groove, the inclined positioning groove and the intermediate positioning groove of each of the two guiding holes.

The invention belongs to the technical field of concrete reinforcement, relating to utilizing fiber mesh grids to enhance the concrete strength. The arrangement of structural reinforcing steel, the thickness of concrete protective layers of main stress ribs and the grade of the concrete strength of the invention are designed according to the design criterion of a reinforced concrete structure. The invention is characterized in that before the initial setting of the concrete, fine concrete and the fiber mesh grids are cast on the outer side of the stretched and drawn area of the structure or the external surface of a large-scale integral structure, the total thickness of the fiber mesh grids and the fine concrete ranges from 10mm to 20mm, concrete with equal thickness of external surfaces are replaced, and the fiber mesh grids are evenly distributed in the fine concrete. The grid type or the plate type structure of the invention can adopt the structure of replacing partial reinforcing steel with the fiber mesh grids. The invention can effectively control cracks and solve the problems of concrete cracking and reinforcing steel corrosion, and has the advantages of firm bonding of theboundary surfaces of the fine concrete and the concrete, light self weight, low production cost, corrosion resistance, safe and durable usage, etc.

The embodiment of the invention discloses a linkage separation system for a fuel oil engine and an electromotor. The linkage separation system comprises a driving disc and a driven disc of an engagement and disengagement mechanism. The driving disc is connected with a power output shaft of the fuel oil engine, the driven disc is connected with a power output shaft of the electromotor, the power output shaft of the electromotor serves as a power output shaft of the engagement and disengagement mechanism at the same time, two or more symmetrically-distributed engagement and disengagement blocks are arranged between an inner cavity of the driving disc and the outer end face of the driven disc, and the outer end face of the driven disc is of a ratchet wheel type structure. When the driving disc runs, the end faces of the engagement and disengagement blocks are connected with the outer end face of the driven disc in a ratchet wheel and pawl clamping contact mode. By means of the linkage separation system, the contact mode of the end faces of the engagement and disengagement blocks and the outer end face of the driven disc is a surface contact mode instead of a linear contact mode, the stressed area is increased, larger torsion and power can be transmitted, transmission is more reliable, and the contact area of a clutch and transmission teeth can be automatically adjusted due to long-time abrasion of the clutch; the linkage separation system can be used in a dry mode or a refueling mode, and the service life of the linkage separation system used in the refueling mode is more than three times that of the linkage separation system used in the dry mode.

A lithium composite negative electrode which allows a hybrid capacitor to operate at room temperature by reducing interfacial resistance in the electrode, a hybrid capacitor comprising the composite negative electrode, and manufacturing methods thereof. The lithium composite negative electrode is a laminar electrode including a lithium ion conductive solid electrolyte, an alginate gel electrolyte, and lithium-doped carbon. Further, a hybrid capacitor includes a positive electrode including a carbon material and / or a metal oxide, the lithium composite negative electrode, and a neutral aqueous electrolyte filled between the positive electrode and the lithium composite negative electrode. The lithium composite negative electrode is configured as a laminar electrode including the lithium ion conductive solid electrolyte, the alginate gel electrolyte, and the lithium-doped carbon.

A slow-releasing Chinese medicine for treating coronary heart disease and angia pectoris and lowering blood pressure is prepared from epimedium, microcrystalline cellulose, carboxymethyl starch sodium, hydroxypropyl methyl cellulose and magnesium stearate.

A high capacity aluminum spot welding trans-gun includes a pair of opposed electrodes, a weld control that controls the operation of the trans-gun, and a transformer that regulates the voltage to the trans-gun having a primary input voltage and secondary output voltage. A liquid-cooled high voltage primary conductor electrically connects the weld control to the transformer primary input and a low voltage secondary conductor electrically connects the transformer secondary output to the welding gun to energize the opposed electrodes.