33results about How to "Potential safety hazard" patented technology

The present invention relates to a wireless remote control for dental equipment, such as dental scaler tools, dental drills, prophy angles and other rotary instruments. The wireless control switch can control the on and off state of the dental tool, or it can also be programmed to control the speed of the tool by a switch on the tool. The wireless control switch can be in the form of, for example, a foot switch, and replaces manual and foot operated controls formerly connected by cables to the dental tools. This removes a potential safety hazard in the dentist's office and makes the equipment control more versatile and easier to adapt to various office conditions. The wireless control can be battery powered, further eliminating the need for cables.

A dual-directions braking method of a disc brake, a braking mechanism and a braking system thereof are applied in fields of automobiles, trains and airplanes. The dual-directions braking mechanism includes a crankshaft having three concentric sections and two eccentric sections, two friction discs, a friction disc ring and at least a pair of brake calipers and friction pads, wherein the two eccentric sections are respectively provided between each neighboring two of the three concentric sections and mutually disposed at 180°; the two friction discs are respectively provided on the two eccentric sections; the friction disc ring is provided on the main section between the two eccentric sections. Through a translationally rotating friction by the two friction discs respectively with the friction disc ring and with the friction pads of each pair of brake calipers, a backward braking moment and a forward braking moment are simultaneously generated on the main sections.

A power socket disposed on a power supply casing of the electronic device to provide power for the electronic device through a power cord is disclosed. The power socket includes an insulating body, three input end contacts disposed at first side of the insulating body, three output end contacts including a grounding contact disposed at second side of the insulating body, and a rigid connector connected between the grounding contact and a protective grounding pin of the power supply casing. The invention simplifies the connection between the power socket and the power supply casing, thereby simplifies the manufacturing process of the power socket and eliminating the potential safety hazard.

A table cabinet having a power-driven lifting socket and a power-driven lifting socket are provided. The power-driven lifting socket includes a housing, a control board, a socket main body, and a lifting device. The socket main body can be driven by the lifting device to move up and down so as to extend out of a passage or retract into the passage. The socket main body may ascend or descend according to the need of use. When not in use, the socket main body can be hidden, such that the surface of the table cabinet is tidy and beautiful, and the socket main body won't be contaminated by the dust, thereby ensuring the performance for the socket.

A storage mesh plate, which includes a first long frame, a second long frame and a mesh plate, one end of the first long frame and one end of the second long frame are provided with a first short frame, and another end of the first long frame and another end of the second long frame are provided with a second short frame; four corners where the first long frame is connected to the first short frame and the second short frame and the second long frame is connected to the first short frame and the second short frame are provided with a first reinforced protection decorating part, a fourth reinforced protection decorating part, a second reinforced protection decorating part and a third reinforced protection decorating part respectively.

A storage mesh plate, which includes a first long frame, a second long frame and a mesh plate, one end of the first long frame and one end of the second long frame are provided with a first short frame, and another end of the first long frame and another end of the second long frame are provided with a second short frame; four corners where the first long frame is connected to the first short frame and the second short frame and the second long frame is connected to the first short frame and the second short frame are provided with a first reinforced protection decorating part, a fourth reinforced protection decorating part, a second reinforced protection decorating part and a third reinforced protection decorating part respectively.

A device with a steam generation function comprises a water storage cavity, a heating cavity with a steam outlet, a guide channel for communicating the water storage cavity with the heating cavity, and a heating element configured in the heating cavity, wherein the heating cavity has a first chamber and a second chamber communicated with the first chamber, and the first chamber is located on one side of the second chamber; and the heating element is configured in the first chamber, and the steam outlet is formed in the second chamber and is spaced from the first chamber in the horizontal direction by a preset first distance to prevent boiling water in the first chamber from being ejected via the steam outlet. The device provided by the present invention is safe in use.

A control valve includes a valve body, a valve plug, two adjusting elements and two operating members. The valve body has a valve hole defined through the valve body and further defines an inlet hole and two outlet holes respectively communicating with the valve hole. The valve plug is movably assembled within the valve body. Two ends of the valve plug are respectively exposed to the outside of the valve body. The two adjusting elements are respectively mounted to two ends of the valve body and respectively adjustably resist against two ends of the valve plug. The two operating members are respectively fixed to the two adjusting elements for driving the two adjusting elements to move the valve plug within the valve hole of the valve body, and thereby controlling the control valve to switch between an open state and a closed state.

Disclosed is an implanted device, comprising a device base body and an active drug, wherein the device base body is pure zinc and / or a zinc alloy, the zinc content in the device base body is 0.1-100%, and the active drug comprises anti-allergic drugs. After the implantation of the implanted device into the human body, the surrounding tissues of the implant would not have a clear hypersensitive reaction due to the presence of the anti-allergic drugs, and the implanted device can be used to be implanted into the body for supporting organ chambers, to fill the hollow chambers of the organs and tissues or as orthopaedic implants etc.

The present invention discloses an apparatus and method for patrol-inspection of a rigid cage channel. The patrol-inspection apparatus comprises a moving member, a transmission member, a driving member, a guide member, and a housing on a main bottom plate. The driving member comprises a tilt sensor and a pressure sensor connected to a microcontroller, the microcontroller is connected to a driver, the driver is connected to a brushless DC motor, and an output shaft of the brushless DC motor is provided with an optical encoder connected to the driver; The moving member comprises a driving output shaft and a driven output shaft, wheel flanges on the driving output shaft and the driven output shaft are each connected with a wheel hub, a permanent magnet is provided in the wheel hub, and a rubber skin is provided on the outer side of the wheel hub; The transmission member comprises a worm connected with the output shaft of the brushless DC motor, a worm wheel on the driving output shaft and meshed with the worm, timing pulleys on the driving output shaft and the driven output shaft, and a timing belt wound on the timing pulleys. The guide member comprises a guide wheel. The present invention increases inspection speed of the rigid cage channel and improves indirectly the production efficiency of the coal mine enterprise.