144 results about "Mechanical assistance" patented technology

A variable displacement vane-type fluid pump is provided which permits improved regulation of the pump discharge such that the pump can meet the various requirements of lubrication for internal combustion engines at all speeds with minimized use of power. Of course, the vane pump may also be utilized in a wide range of power transmission and other fluid distribution applications. The variable displacement vane pump of the invention may utilize both hydrostatic and mechanical assistance in radially positioning its vanes to ensure efficient and quiet operation of the pump and to facilitate priming of the pump. The vane pump of the invention may also use both hydrostatic and mechanical actuators to control the position of its containment ring or eccentric ring and hence, regulate the output of the pump. According to yet another aspect of the present invention, to prevent inlet flow restriction or cavitation, a valve may be provided to permit some of the pump outlet or discharge flow to bleed into the pump inlet to provide needed velocity and energy to the fluid flow into the pump inlet.

A method and apparatus is disclosed for mechanically-assisted liposuction treatment. The apparatus includes a hand-holdable housing, an electro-cauterizing dual cannula assembly, and a reciprocation mechanism. The hand-holdable housing has a cavity adaptable for receipt of the electro-cauterizing cannula assembly. The electro-cauterizing cannula assembly has a distal end and a proximal end and at least one aspiration aperture about the distal end. The reciprocation mechanism is disposed within the housing and is operably associated with the inner cannula so that the inner cannula can be selectively caused to reciprocate relative to the stationary outer cannula mounted to the hand-supportable housing. As the inner cannula is caused to reciprocate relative to the housing, the aspiration aperture formed through the distal end of the cannula assembly is caused to undergo periodic displacement. During aspiration of tissue, high-voltage RF power signal supplied to electro-cauterizing electrode structures formed about each reciprocating aspiration aperture to effect hemostasis thereabout. Such hemostasis is achieved by causing protein molecules within aspirated tissue to coagulate in response to the high-voltage RF signal being supplied across the electro-cauterizing electrode. In the preferred embodiments, the amount and rate of such aspiration aperture displacement is controllably adjustable. The cannula assembly is releasably detachable from the hand-holdable housing to facilitate cleaning and sterilization of the cannula assembly and the housing.

Systems (100) and methods (1500, 1600) for operating a Security Tag (“ST”). The methods involve communicating a Wireless Signal (“WS”) to ST (132) tag attached to an article (102) when a successful purchase thereof has been verified. WS includes a detach command. A mechanical component (922) of ST is caused to be released in response to a reception of WS at ST, whereby a pin (308) of ST transitions from an engaged position to an unengaged position without any human assistance or mechanical assistance by a device external to ST. An end (1002) of the pin resides within an aperture (1102) formed in a first portion (312) of an enclosure (302) spaced apart from a second portion (310) of the enclosure by a gap when the pin is in the engaged position. The pin is fully retracted into the second portion when it is in the unengaged position.

Systems and methods for operating a security tag. The methods involve: establishing an electrical connection between the security tag and an external Power Removal Station (“PRS”); performing operations by the security tag to authenticate a detach command sent from the external PRS; allowing power to be supplied from the external PRS to an electro-mechanical component of the security tag when the detach command is authenticated; and actuating the electro-mechanical component so that a pin of the security tag transitions from an engaged position to an unengaged position without any human assistance or mechanical assistance by a device external to the security tag.

An apparatus for magnetically sealing a cover of a beverage container comprises a body having an opening, at least a first magnetic member of a first polarity disposed on at least a first portion of the body and a second magnetic member of a second polarity, substantially opposite the first polarity, disposed on at least a second portion of the body, the first magnetic member magnetically retaining the second magnetic member in first and second positions, independent of mechanical assistance, to expose at least a portion of the opening to allow fluid flow to and from the container when in the first position and sealingly occlude the opening to prevent spillage when in the second position.

A shovel accessory for assistance in lifting and moving material in a shovel scoop includes an elongated, length adjustable, ground contacting support rod attached to the shovel handle. The rod is pivotable through half-circle arcs around an axis perpendicular to the handle length and rotatable in either direction completely around the handle shaft.

The invention provides a flexible ultraviolet light imprinting composite template and a preparation method thereof. The composite template adopts a three-layer structure and comprises a flexible supporting layer, a middle layer and a rigid structure layer, wherein the flexible supporting later is a low-elasticity-modulus polymer substrate; the middle layer is an ultraviolet light curing cross-linking agent of a mixture of a polyfunctionality organic sulfydryl monomer and a polyfunctionality organic olefin monomer; the rigid structure layer is an ultraviolet light curing cross-linking agent of a mixture of a polyfunctionality sulfydryl monomer containing silicon and a polyfunctionality olefin monomer containing silicon; and the surface of the rigid structure layer adopts a micro-nano imprinting structure. The lexible ultraviolet light imprinting composite template is cured and prepared in an ordinary laboratory environment, and vacuum or nitrogen protection is not required; when the ultraviolet light curing imprinting is performed, mechanical assistance is not required; and the composite template has the advantages as follows: the flexible template imprinting is self-adapted to the shape of the substrate, and the rigid template can duplicate a high-resolution nano-structure.

Macroscopic volumes of fluid can be moved across a surface, including windshields, without mechanical assistance. Insulated electrodes, which for windshields and windows are preferably transparent, are embedded in the surface of the windshield. Varying voltages are supplied to the electrodes to generate intense surface fringe electric fields moving in a given direction across the surface. The intense surface fringe electric fields exert strong electrical forces on the polar molecules of the fluid. These forces move the fluid in specific directions dependent on the geometry of the electrode array and the manner in which voltage is applied to each electrode within an array of electrodes.

According to the invention, the chair is characterized in that it comprises means for inclining the whole seat structure, which inclining means are interposed between the framework and the lifting means and comprise at least: a base (65) which is integral with the framework (1) and which oscillates about a substantially horizontal axis and on which the lifting means are provided, and a mechanical assistance means which is interposed between the base (65) and the framework (1) and which is designed to permit a modification of the inclination of the whole seat structure by means of a rotation of the base (65).

Charging service vehicles and methods with output points and cables are disclosed. The service vehicles are vehicles having electric vehicle (EV) charging equipment and output points affixed. The output points are configured as power outputs of the charging equipment to which connectors may be attached. Output points are located on multiple sides of the vehicle and can receive charging cables to connect the charging equipment to an EV. The charging cables, and potentially extension cables, may be limited in size and weight to allow a user to reach the charging port of an EV without mechanical assistance. In some cases the vehicle may be connected to multiple EVs at once to provide charging services from multiple output points. These embodiments permit a service vehicle operator to quickly and safely reach EVs in remote roadside environments that would otherwise be inaccessible to vehicles with limited ports and fixed charging connection devices.

A method of providing mechanical assistance to the onset of heart-pumping activity includes selecting anatomical structure adjacent the heart which may be stimulated to produce in the selected anatomical structure motion which may be delivered as driving force to the heart in relation to heart-pumping activity; control-stimulating that selected anatomical structure in a pre-determined timed relationship with respect to the normal, expected, heart-pumping onset; and by such stimulating, and utilizing the selected anatomical structure, drivingly assisting the heart-pumping onset activity.

The invention relates to a manipulator for vascular intervention operation, which aims at solving the problem that the X-ray can harm the medical staff in the clinical vascular intervention process; and the invention provides a mechanical automatic device for finishing the vascular intervention operation. The manipulator for the vascular intervention operation comprises a machine control platform, a manipulator arm, an imaging device, a resistance sensor, special cables and a control terminal. When the manipulator is in use, after artificial puncturing, the guide wires and/or the device used for the vascular intervention is fixed at a position corresponding to a control bracket; the manipulator arm is remotely controlled by a control system so that the manipulator arm clamps, releases, pushes-in, pushes-out and rotates, i.e. the operation is completed by means of the machine, thus the problem that the X-ray can harm the medical staff in the clinical vascular intervention process can be thoroughly solved.

The invention relates to the technical field of construction engineering machinery, in particular to a cement culvert pipe laying device for construction engineering. The device comprises a moving body; the moving body is provided with a mounting frame, a supporting beam is fixedly arranged on the mounting frame, the supporting beam is internally provided with a first moving driving device, the movable end of the first moving driving device is fixedly connected with a lifting frame, a first lifting driving device is arranged in the lifting frame, the first lifting driving device is fixedly connected with a fixing beam, a second moving driving device and a third moving driving device are respectively disposed in the fixing beam, and the second moving driving device and the third moving driving device are respectively connected with a set of culvert pipe fixing devices; a plurality of transverse moving devices and the lifting driving devices cooperate with the culvert pipe fixing devices, cement culvert pipes are unloaded from a carrying vehicle, and then are laid directly, large mechanical assistance is not required, and the cost of laying is greatly reduced.

A dispensing system for providing a sustained release of fragrance over time by bringing into contact by gravity assistance, mechanical assistance or combination thereof, a discrete, incremental portion of a solid, typically a fragrance-containing solid, and a liquid activator so as to cause sustained, incremental release of the fragrance. The system can additionally a comprise an effervescent component that generates desirable effervescence when the solid is contacted with the liquid activator. Various dispensers and methods that utilize gravity assistance, mechanical assistance or combination thereof can be used to bring the solid and liquid activator into contact to provide this sustained, incremental release of fragrance.

The invention discloses an efficient anti-rusting overwater garbage salvaging device for a ship. The efficient anti-rusting overwater garbage salvaging device comprises a machine body, a position adjusting device and a salvaging device body. The machine body comprises a base, a balancing weight, a storage battery, a push rod, a handle, rotary seats and universal wheels. The position adjusting device comprises a longitudinal supporting plate, a first hydraulic cylinder, a first piston cylinder, a first hydraulic piston, a first connection block, a lifting plate, a transverse supporting plate, a second hydraulic cylinder, a second hydraulic piston, a second connection block, a transverse telescopic plate and a fixing seat. The salvaging device body comprises a rotary roller, a baffle, a motor, a left connection rod, a right connection rod, a connection ring, a rotary shaft, a left rotary buckle, a left salvaging manipulator, a right salvaging manipulator and water leakage holes. Through the efficient anti-rusting overwater garbage salvaging device for the ship, overwater garbage salvaging operation is achieved, and the efficient anti-rusting overwater garbage salvaging device has mechanical assistance, is convenient to operate and meets existing requirements.