141results about How to "Maximum service life" patented technology

A filter element having multiple formed layers of filtration media is disclosed. The media are layered so as to form a pore size gradient. The filter element is capable of removing both solid and liquid particulates from a moving fluid stream. The filter element has high strength and compressibility. The layers can be supported on a porous or perforate support to provide mechanical stability during filtering operations. The filtration media layers can be formed into various filter element forms such as panels, cartridges, inserts, and the like.

A laterally translatable pressure staged rotary shaft sealing mechanism having a seal housing with a shaft passage therein being exposed to a fluid pressure P1 and with a rotary shaft being located within the shaft passage. At least one annular laterally translatable seal carrier is provided. First and second annular resilient sealing elements are supported in axially spaced relation by the annular seal carriers and have sealing relation with the rotary shaft. The seal housing and at least one seal carrier define a first pressure staging chamber exposed to the first annular resilient sealing element and a second pressure staging chamber located between and exposed to the first and second annular resilient sealing elements. A first fluid is circulated to the first pressure chamber at a pressure P1, and a second staging pressure fluid is circulated to the second pressure chamber at a fraction of pressure P1 to achieve pressure staging, cooling of the seals. Seal placement provides hydraulic force balancing of the annular seal carriers.

The useful life of an abrasive material transport hose (10) can be maximized if the hose is repositioned at the first signs of internal wear. This is accomplished by disposing at least two wear sensing elements (17, 21), each at a specified distance from the inwardmost surface of the inner tube (12), and each monitoring a condition indicative of wear of the hose (10) at its specified distance from the inwardmost surface of the inner tube. When the innermost wear sensing element (17) implies wear, the hose can be repositioned to extend the useful life until the outermost wear sensing element (21) indicates wear requiring replacement of the hose.

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8 SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

A mini-blind actuator has a motor and a housing that holds the motor and a dc battery. The rotor of the motor is coupled to the baton of the mini-blind for rotating the baton and thereby opening or closing the slats of the mini-blind. Alternatively, the rotor is coupled to the tilt rod of the blind to rotate the tilt rod and thereby open or close the slats of the mini-blind. A control signal generator generates a control signal for completing the electrical circuit between the battery and the motor. The control signal can be generated in response to a predetermined amount of daylight or in response to a user-generated remote command signal. The actuator can be used to rotate the slats of horizontal or vertical blinds, or the sections of a pleated shade. Or, the actuator can be used to rotate the hollow rotatable tube of a roll-up shade.

A low-cost minimal-loss zero-maintenance flywheel battery, to store electric power from a DC power source by conversion to kinetic energy, and regenerate electric power as needed. Its vertical spin-axis rotor assembly is supported axially by repelling annular permanent magnets, and is centered by ceramic ball bearings which have axial preload that prevents vibration and augments axial rotor support. A regenerative multi-pole permanent-magnet motor, controlled by its 2-phase stator current, and connected by power and signal conductors to power interface electronics, is integrated within the flywheel assembly, in a vacuum enclosure supported by a self-leveling structure. Sinusoidal 2-phase stator currents are controlled by high-frequency pulse-width-modulated H-bridge power electronics that draw and regenerate controlled DC current with minimal ripple, responsive to respective 2-phase rotation angle sensors, the DC power voltage, and other settings. The electronics includes logic and over-voltage protection to prevent otherwise possible damaging current and voltage.

The present approach provides methods and processes for comprehensive management of the Mission Critical Ecosystem. Mission critical information management includes information from an entity's facilities, especially the critical facilities. The methods and processes disclosed herein allow for assessing and managing dependencies between assets, which may provide valuable insight into, for example, risk relationships for planned and unplanned events, and mitigation planning and management for incidents.

In an electonic key associated with a device for skin treatment there is a housing and an integrated circuit, the integrated circuit is positioned within the housing, wherein the device for treating human tissue comprises a surgical instrument having a gas conduit terminating in a plasma exit nozzle, and an electrode associated with the conduit, and a radio frequency power generator coupled to the instrument electrode and arranged to deliver radio frequency power to the electrode in single or series of treatment pulses for creating a plasma from gas fed through the conduit, the pulses having durations in the range of from 2 ms to 100 ms.

The portable solar energy system stores electrical energy generated by a solar panel, which is made of an array of photovoltaic cells, in a dc storage battery, and upon demand converts the dc voltage of the battery to an ac output suitable for supplying conventional electrical appliances. The battery is a sealed lead-acid type and may be an Absorbed Glass Mat (AGM) battery. The system includes an energy storage and converting unit, which houses the battery and a dc-to-ac inverter. The inverter converts the stored energy of the battery, supplied at a low dc voltage, into the ac voltage and current required for supplying conventional appliances. A charge controller manages the flow of current from the solar panel to optimize the state of charge of the battery and to maximize the useful life of the battery. Additional circuitry monitors the discharge level of the battery to limit deep discharging.

A polyester woven sheeting material including a set of 100% polyester warp yarns and a set of 100% polyester weft yarns, wherein the warp and weft yarns are interlaced to form the sheeting material. The warp and weft yarns comprise of air-jet spun polyester fibers that wisk moisture away from an individual laying on the woven sheeting material and, therefore, provide a quick-drying, breathable woven sheeting material which simulates the absorbency characteristics of cotton yarns. The set of polyester warp yarns and the set of polyester weft yarns may be interlaced to form a ground fabric, where a set of polyester pile yarns may then be interlaced with the ground fabric so that the pile yarns extend outwardly (e.g., forming a plurality of loops) on the front side, back side, or both sides of the ground fabric.

The present invention provides an improved process and an apparatus for producing collimated UV radiation for exposing printed circuit boards. The process consists in shortening the optical length of the downstream optics by dividing the UV radiation over many radiation sources, and in distributing the UV radiation uniformly on the substrate by using a scanning slide.

The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.

The invention discloses a multi-target coordinated operation optimization method of wind and photovoltaic storage electricity generation units and relates to the technical field of wind and solar storage electricity generation control. The method comprises the steps of determining output power models of the electricity generation units, wherein the output power models comprise the output power models of wind driven generators, the output power models of photovoltaic generators and the output power models of energy storage batteries; building multi-objective functions of the wind and photovoltaic storage electricity generation units, wherein the multi-objective functions comprise the electricity-generation-unit total-cost minimum objective functions and the renewable-energy-source loss-ratio minimum objective functions; setting constraint conditions of the multi-objective functions, wherein the constraint conditions comprise the power balance constraint conditions, the generator output constraint conditions and the energy-storage-battery capacity constraint conditions; solving the multi-objective functions through an improved multi-target universal gravitation search algorithm to obtain an active output value of each period of each electricity generation unit. On the basis that renewable energy sources are fully used, the longest service life of each storage battery is achieved, and therefore overall operating efficiency of the wind and photovoltaic storage electricity generation units is improved.

A polymer pelletizing apparatus includes a device for automatically and electronically indexing (advancing) a set of pelletizer knives by a predetermined distance upon the expiration of a predetermined time period. This advancement is continued for the useful life of the pelletizer knives and is called the advancement cycle. The predetermined distance and predetermined time period are entered into a PLC. The PLC is connected to an external advancing device such that when the PLC determines that the predetermined time period has expired, the PLC causes the external advancing device to index or advance the pelletizer knives by a predetermined distance. This advancement cycle provides consistent wear of the pelletizer knives and accurately provides an estimate of the need for a knife change.

A method and an apparatus for controlling the hybrid drive of a motor vehicle having the following components: internal combustion engine (VKM), manual transmission (SG), at least one electrical machine (Em_i), at least one clutch (K_j) and an energy storage device (ES), and at least one driven axle (HA; VA) are intended to provide maximum efficiency and service life of the components. To this end, a decision is made about which operating modes (AMK) are possible on the basis of a driver input (FW) and operating state, a division is made about which gears (G_j) are available for the possible operating modes (AMK), so that a larger number of modes (AMGK) are available for selection, operating points which correspond to the driver input are determined for all these modes (AMGK), taking into account the operating state and system state (SZA), the modes (AMGK) are assessed and the mode (AMGK*) which is assessed as being most expedient is selected.

In a sprocket for use with a roller chain, a wear limit marker, having a different color from that of the base material of the sprocket, is provided on side surface of a sprocket tooth adjacent to a keyway. The wear limit marker is disposed on an imaginary line extending in the direction of the pressure angle, and is located in a hole or groove provided in a side surface of the sprocket tooth. The marker makes it possible to determine easily and reliably whether or not wear at the location at which wear of a sprocket tooth proceeds most rapidly is within a predetermined limit, and the location of the marker makes it possible to evaluate wear conditions even when the sprocket is installed in a machine.

A turn indicator light and a position light are provided for a rear mirror assembly mounted in a vehicle body. A light body for the turn indicator light is a filament light bulb and a light body for the position light is a light emitting diode. Positioning the lights in the rear mirror permits the width of the vehicle to be more recognizable. The turn indicator light and the position light are provided with individual light bodies, respectively, for allowing independent service to be performed with respect to each light.