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51 results about "Unresolved Issue" patented technology

Any problem that remains unresolved regarding proper documentation of the Administered Item.

Transducer capable of being directly applied to various ultrasonic flow meters

The invention discloses a transducer capable of being directly applied to various ultrasonic flow meters. The transducer capable of being directly applied to the various ultrasonic flow meters is characterized by comprising a piezoelectric ceramic wafer support, a cylindrical sealing element which is connected with the outer portion of the piezoelectric ceramic wafer support in a sleeved mode, and a hard outer shell which contains a piezoelectric ceramic wafer, the piezoelectric ceramic wafer support and the cylindrical sealing element, the piezoelectric ceramic wafer support and the cylindrical sealing element are fixed on the hard outer shell through fixing screws, a whole space is formed by a gap between a ultrasonic emitting surface or a receiving surface and an annular air slot, an air slot and the piezoelectric ceramic wafer and a free space in the hard outer shell, the whole space becomes a sealed space after vent holes are sealed through sealing screws, and the whole space is filled with coupling agent. The transducer capable of being directly applied to the various ultrasonic flow meters has the advantages of being capable of assembling the transducer to a whole component which is applied to the device according to different application situations or requirements, good in corrosion resistance, impurities resistance, scaling resistance, temperature character, pressure resistant character and signals, and capable of preventing the piezoelectric ceramic wafer from cracking and solving the problem that the ultrasonic transducer can not solve.
Owner:DALIAN HUANDAO INSTR +2

Device for guiding and clamping workpiece

ActiveCN102133716AAvoid damageDouble duty as protectionMetal working apparatusUnresolved IssueEngineering
The invention relates to the technical field of clamping when cylindrical hardware and screws are processed, in particular to a device for guiding and clamping a workpiece when the cylindrical hardware and the screws are processed. The device for guiding and clamping the workpiece comprises a clamping disc, a rotating shaft, a shaft seat, a pressing block, a pressing block installing seat and a power source, wherein the rotating shaft drives the clamping disc to rotate; and the pressing block is matched with the clamping disc. The device is characterized in that a plurality of elastic sheet pressing discs are arranged between the clamping disc and the pressing block and can rotate synchronously with the clamping disc; and each elastic sheet pressing disc mainly comprises a base body and an elastic sheet connected at the periphery of the base body. In the device, not only the product quality can be guaranteed, but also the production efficiency can be guaranteed, the labor and the time are saved, so that energy conservation and consumption reduction are realized, the production cost is reduced, and especially, the damage of the pressing block to a processing workpiece in processing is avoided so as to solve the problem which is wanted for being solved for years and has been not solved yet in the industry cycle.
Owner:罗锡锋
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