76results about How to "Safe and easy replacement" patented technology

A device and method for repairing spinal discs in which the nucleus has been damaged. A central section of the nucleus is cored out using a device which ablates the tissue using RF energy. A nucleus implant comprising a shape memory material is placed in the central section of the disc through a cannula, which implant is activated by body heat to expand and fill the central section, such that the implant emulates the functions and strength of the disc's natural nucleus.

An electrical box is mounted on a wall stud, and a wiring panel is installed within the electrical box so as to partition the interior of the electrical box into a user inaccessible wiring compartment and a user accessible module compartment. A protective cover is attached to the wiring panel so as to protect the wiring panel during a makeup phase of wall panel installation and painting. After the makeup phase, the protective cover is removed from the wiring panel and a module having a user operable electrical function is mounted to the wiring panel within the user accessible module compartment.

An automated self-propelled pool cleaner having a housing, a water pump for moving water through the housing, drive means for moving the pool cleaner over the surface of the salt water pool to be cleaned, and an integral electrochemical chlorine generator mounted in the housing, includes a processor/controller that is programmed to activate the chlorine generator, the pump and drive means in predetermined operational sequences that minimize wear and tear on the water pump and drive means, while at the same time distribute and maintain a safe level of sanitizing chlorine in the pool, to thereby obviate the need for an in-line chlorinator or other chemical additive treatments; an optional automated sensor device can be provided to activate a secondary maintenance program which enables the pool cleaner to operate over prolonged periods of time as the sole means for filtering and sanitizing the pool water. An electrochemical cell manual mounting system permits the cell to be secured in place for operation and manually removed for maintenance, repair or replacement by the user without special tools or training.

An electric machine and a power supply system, in which a battery pack can be easily and safely replaced with another, and electric power can be transferred with high transfer efficiency. An electric machine of the present invention includes a driving electric motor, a battery pack for supplying electric power to the driving electric motor, and an energy transfer section for transferring electric energy output from the battery pack to the driving electric motor. The battery pack includes a first antenna for receiving electric power from a power supply source located outside the electric machine by coupling with a first resonant magnetic field generated by the power supply source, at least one secondary battery charged by the electric power received by the first antenna, an oscillator for producing radio-frequency power by DC power discharged from the secondary battery, and a second antenna for generating a second resonant magnetic field by the radio-frequency power. The energy transfer section includes a third antenna that couples with the second resonant magnetic field generated by the second antenna, and transfers the radio-frequency power received by the third antenna to the driving electric motor.

A safety outlet module includes a housing, a receptacle defined by the housing, an aperture defined within the receptacle, a cover slidably retained within the receptacle and a plug retained at least partially within the housing. The receptacle has an opening, a bottom and a wall extending between the opening and the bottom. The aperture partially extends along the wall. The cover has a closed position proximate the opening and an open position proximate the bottom. The aperture is blocked in the closed position and exposed in the open position. The plug extends from a housing face and is adapted to removably connect to an electrical power source. A contact is retained by the housing outside of the receptacle and proximate to the aperture, and a buss internal to the housing connects the plug to the contact.

A modular wiring system including a wall box receptacle device. The system includes a wiring interface disposed on a first side and electrically coupled to a plurality of receptacle openings disposed on a second side. An adjustable support assembly includes a retaining frame configured to secure the wall box receptacle device therein. A first hinged mounting member is rotatably coupled to a first end of the retaining frame, and a second hinged mounting member is rotatably coupled to a second end of the retaining frame. A modular electrical wiring device includes at least one electrical circuit disposed between a cover member and a rear body member. The at least one electrical circuit is coupled to a plurality of male terminal elements accessibly disposed in the rear body member. The plurality of terminal blades are insertable in the plurality of receptacle openings to establish electrical continuity between the plurality of male terminal elements and the wiring interface.

A utility knife includes a housing, a cutter holder, a cutter blade magazine and an elastic member. The housing has a front chamber, a rear chamber in communication with the front chamber, and an opening extending from the rear chamber to the outside. The cutter holder is mounted in the front chamber. The cutter blade magazine is inserted through the opening of the housing into the rear chamber. The cutter blade magazine has a cutter blade chamber for accommodating a plurality of cutter blades, a sliding slot, an elongated slot, an outlet in communication between the cutter blade chamber and the front chamber of the housing, and a push block slidably mounted in the cutter blade chamber. The elastic member has one end fastened to the inside of the rear chamber and the other end inserted through the elongated slot of the cutter blade magazine into the cutter blade chamber for stopping against cutter blades inside the cutter blade chamber. Thus, the utility knife of the invention allows for storage of multiple replacement cutter blades and also allows for safety and easy cutter blade replacement.

A wheel support for providing a connection, rotatable about an axis (S), between a wheel of a vehicle which can be braked by a disk brake and the stub axle (6) of the vehicle comprises a bell (24) suitable for supporting a braking band (25) and a connection flange (14) for the connection of the vehicle wheel. The bell (24) and the connection flange (14) are formed integrally, constituting a single body (2) which can be connected rotatably and releasably to the stub axle (6) of the vehicle.

A battery holder (210) for mounting a button-type battery (200) on a printed circuit board (220) is provided. The battery holder comprises a resilient electrode plate (212), a ring (214) and a battery cap (216). The resilient electrode plate is soldered to positive contacts (222) of the printed circuit board. An anode of the battery is put on and electrically connects with the resilient electrode plate to thereby connect electrically with the positive contacts on the printed circuit board. The ring is soldered to negative contacts (224) of the printed circuit board and surrounds the resilient electrode plate. The battery is accommodated within the ring. The battery cap is fixed and electrically connected to the ring and covers the battery. The battery cap also electrically contacts with a cathode (202) on a top of the battery. The cathode and anode of the battery are separated by an insulation (206).

A track-bearing cabinet fastener comprising: a track holder with a baseplate; a clamping device provided with (a) a clamping box which is securely fixed at the baseplate for development of an accommodating space inside and comprises through slots at both top and bottom sides through which the accommodating space is accessed and two ports at its front side, one of which abuts a hook piece, (b) a clamping block which is held in the accommodating space and resisted by springs and comprises two protruded resisting parts located at its front side and corresponding to the ports, and (c) a clamping plug securely fixed behind the clamping box and the clamping block and closely contacting the springs by which the protruded resisting parts extend into the ports. As such, the track holder can be assembled, positioned and operated easily and safely.

The invention provides a metal-film filtering screen and an air purifying device, and relates to the field of air purification. The metal-film filtering screen is mounted in an air filtering device; the air filtering device is provided with an air inlet and an air outlet; the metal-film filtering screen comprises a medium-efficiency filtering screen and a high-efficiency filtering screen. The medium-efficiency filtering screen more approaches the air inlet relative to the high-efficiency filtering screen; the medium-efficiency filtering screen and the high-efficiency filtering screen both comprise multiple layers of filtering plates; a gap exists between two adjacent layers of the filtering plates; the filtering plates are provided with multiple filtering holes; the filtering plates are made from intermetallic compounds. As the filtering screen is made from a special intermetallic compound, the purification effect is good; a material is quite environment-friendly; moreover, the metal-film filtering screen can be circularly rinsed and repeatedly used; after a client purchases a fresh air ventilator with the filtering-screen material, no any consumable-material expenses exist. In this way, the fussy consumable material replacing action is virtually decreased for the client; meanwhile, the cost is also greatly saved for the client.

A system for transporting and dispensing strap from a reel is provided. The system includes a lifting device and a strap dispensing apparatus. The strap dispensing apparatus includes a base member having first and second sides. The first side of the base member defines at least one channel that is structured to be transportably engaged by the lifting device. The strap dispensing apparatus also includes a frame mounted to the second side of the base member. The frame is structured to rotatably support the reel so that the strap can be dispensed.

The invention discloses a fuse protector type disconnecting switch carried with a signaling device in a hanging mode. The fuse protector type disconnecting switch comprises a fuse protector type disconnecting switch body. The fuse protector type disconnecting switch body comprises a base, a handle and a fuse protector with an impactor. The back end of a handle is movably connected with the back end of the base, and the fuse protector is hung on the inner side face of the handle. The signaling device is further connected to the outside of one lateral plate at the front portion of the base, and an ejecting rod connected with the signaling device and arranged on a popup route of the impactor on the fuse protector is further arranged in the base. When the base is closed up through the handle, the signaling device is triggered to send a closing signal. When the fuse protector is fused, the impactor on the fuse protector triggers the ejecting rod to enable the signaling device to send a fusing signal. The fuse protector type disconnecting switch carried with the signaling device in the hanging mode can achieve connection and disconnection through the same signaling device and monitoring of an operation state of the fuse protector, so that the fuse protector type disconnecting switch body is simple in structure. The fuse protector type disconnecting switch can be combined into a double-pole disconnecting switch.

The invention discloses an overbreak knife of a tunneling machine. The overbreak knife of the tunneling machine includes a hollow cutterhead and a driver, and the driver is installed in the cutterhead. A base plate is arranged at one end of the cutterhead, and a guide rail sleeve is coaxially installed at the other end of the cutter, wherein both ends of the guide rail sleeve are open. The base plate is detachably connected to one end of the driver, and a knife rod is detachably connected to the other end of the driver, wherein the knife rod is matched with the guide rail sleeve. The knife rodstretches into the guide rail sleeve and can extend and retract in the extension direction of the guide rail sleeve under the drive of the driver. A cutting tool is detachably installed on the kniferod, and an installation opening is arranged on the side surface of the cutterhead for the driver, the knife rod and the cutting tool in and out. The replacement of the overbreak knife can be quicklyrealized, the replacement efficiency of the overbreak knife is improved, the construction cost is reduced, and the construction safety is improved. The invention further discloses a tunneling machineincluding the overbreak knife.

The invention discloses an overbreak knife of a tunneling machine. The overbreak knife of the tunneling machine includes a hollow cutter and a guide rail sleeve, wherein the guide rail sleeve is installed in the cutter and both ends are open. The outer end of the guide rail sleeve stretches out the outer end of the cutter, a knife seat is coaxially arranged in the guide rail sleeve, and the knifeseat can extend and retract in the extension direction of the guide rail sleeve. A cutting tool is detachably installed at the outer end of the knife seat, and a cylinder barrel is installed in the guide sleeve. Protruded pistons are arranged on the periphery of the middle of the knife seat, and the pistons are contacted with the inner wall of the cylinder barrel in a sealing mode. Oil openings for hydraulic oil in and out are formed in the two ends of the cylinder barrels, and an installation opening for the cutting tool in and out is formed in the side surface of the cutter. The cutting toolis taken out from the back side of the cutter without the need for cutting a grotto from the side surface of the overbreak knife. The replacement of the overbreak knife can be quickly realized, the replacement efficiency of the overbreak knife is improved, the construction cost is reduced, and the construction safety is improved. The invention further discloses a tunneling machine including the overbreak knife.