95results about How to "Cost-effective construction" patented technology

A direct access arrangement (DAA) device is provided that is configured to interface a security alarm modem with a phone network. The DAA device comprises a receive optical isolator (OI) module having a receive input side and a receive output side. The receive input side includes a receive input line configured to receive a remote signal from the phone network. The receive output side includes a receive output line configured to convey the remote signal to a security alarm modem. First and second transmit OI modules are provided that each have a transmit input side and a transmit output side. The transmit input sides have transmit input lines joined in parallel with one another and configured to receive transmit signals from the security alarm modem. The transmit output sides have transmit output lines joined in parallel with one another and configured to convey the transmit signals to the phone network. An impedance matching module is joined to the transmit output sides of the first and second transmit OI modules and configured to provide impedance matching with the phone network. Optionally, the transmit output lines from the first and second transmit OI modules may be joined in parallel with the receive input line. The first and second transmit OI modules may include first and second LEDs, respectively, that draw substantially equal diode currents. The receive and first and second transmit OI modules may each have an associated diode current, where the receive module is interconnected with the first and second transmit OI modules such that the diode current collectively utilized by the first and second transmit OI modules changes by an amount that is substantially equal in amplitude, but opposite in polarity, to the diode current utilized by the receive OI module.

A method and apparatus for zooming an image by a zoom factor wherein a first image without zoom and a second image with fixed optical zoom are processed to find a mapping between low resolution patches and high resolution patches that are then used for zooming the first image if the zoom factor is less than the fixed optical zoom else the mapping between low resolution patches and high resolution patches are used for zooming the second image with fixed optical zoom.

An improved corbel includes a first tier having first blocks and a second tier having second blocks. Each of the first blocks includes a first aperture extending through the block from a first surface to a back surface and a second aperture formed through a top surface of the block, extending into the first aperture. The first blocks are arranged on a substantially planar surface to align the respective first apertures to define a first passageway. Each of the second blocks includes a third aperture extending through the second block from a top surface to a bottom surface. The second blocks are disposed above the first tier to align the third aperture of each of the second blocks with the second aperture of the first blocks to form a second passageway.

The invention relates to a method for repairing a leaked coiled-material water-proof roof. The method comprises the steps of basic layer processing, detail repairing, large-area repairing, and the like. The step of detail repairing comprises: repairing cracked gutters and eaves gutter coiled-materials, repairing flashing parts and repairing deformed joints. The step of large-area repairing comprises: paving water-proof coiled materials, repairing cracks on a coiled-material water-proof layer, repairing the raised edges of a joint opening, repairing a raised part, and the like. The whole repairing scheme of the invention has the advantages of scientific design, reasonable system, overall prospection, rigorous analysis, practicability and good construction effect, and ensures that leaked houses can be effectively repaired. In the method, the materials, construction manner, construction environment, and the like, are all comprehensively considered. The construction cost performance is high and the use range is wide. The construction method is safe and environment-friendly, can meet the demands of building use and safety, can ensure that the manpower, material resources and financial resources are saved, and is suitable for various repairing for the leaked coiled-material water-proof roof. The application and practice show that the construction condition of the method is in good condition.

An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage. The diode prevents a current flow between the energy store and the link if the link voltage is greater than the support voltage. A charging device for the energy store has a lower charging voltage than the nominal operating voltage of the link.

The invention relates to a grip for a handgun, in particular a pistol, having a grip module (1) made of plastic and a metal carrier element (2) that is insertable into said grip module (1). In order to enable a simple and cost-effective adaptation to the widest variety of demands of the marksman, a magazine shaft (4), projecting downward from the grip module (1) and onto which is slipped a grip shell module (3), is formed as a part of the carrier element (2).

An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage. The diode prevents a current flow between the energy store and the link if the link voltage is greater than the support voltage. A charging device for the energy store has a lower charging voltage than the nominal operating voltage of the link.

A switching device including housing and a breaker mechanism, the latter consisting of a trip lever, a catch, a displaceable contact arm and a deflection shaft that is fixed to the housing. The aim is to generate a constant contact force. To achieve this, the end of the catch is coupled to the displaceable contact arm by way of a bolt. The bolt is configured to be displaced in a receiving element that is formed by the housing.

A mounting apparatus for mounting a handle to a power tool is disclosed. The apparatus comprises a base for supporting a handle and engaging a body of the power tool, a flexible strap for engaging the base at first and second locations to form a loop for retaining the support in engagement with the body of the power tool, and a clamping mechanism comprising a pair of wedges for engaging the base and the flexible strap, and a bolt for retaining the wedges in position relative to the base. A knob enables movement of the wedges relative to each other in a first direction to reduce the size of the loop and in a second direction to increase the size of the loop.

An electromagnetic actuator includes a stator and a movable body. The stator includes a core provided with magnetic poles and a coil wound on at least one of the magnetic poles. The movable body includes a permanent magnet and supported in such a manner as to make reciprocating in a direction perpendicular to a direction in which the permanent magnet opposes the magnetic poles. The movable body is reciprocated upon applying an alternating voltage to the coil. An electromagnetic actuator driving method for driving the electromagnetic actuator includes performing feedback control of the alternating voltage in which the alternating voltage is applied to the coil during a first half of a control period and in which an induced electromotive force generated in the coil during a second half of the control period is used as a control signal.

A spray lance for a high-pressure cleaning device is proposed with a pivoting nozzle and a support device, as well as an associated link for the spray lance. The spray lance according to the proposal permits universal applicability or easy adaptation to the particular conditions.

A line routing device is provided in order to allow simple, reliable electrical linking, in particular of a motor-vehicle sliding door to a vehicle power supply system. The line routing device includes a housing having a movement opening which extends in longitudinal direction and an outlet opening. A movement element is movably mounted in the movement opening and the cable as well as a spring strip, which is bent in a U-shape, are attached to the movement element. The cable is routed along the spring strip to the outlet opening and an end of the spring strip, which is remote from the movement element, is fixed to the housing.

A float switch made from plastic and impervious to corrosion, with improvements over the prior art including a more responsive operation resulting from use of a wide float switch body and a closely fitting housing that allow rapid shut-off of condensate production after collection of only a very small amount of fluid, a small housing dimension for easy installation in the small areas used for air conditioning system air handlers, a removable bottom cap for easy debris removal as well as float switch body adjustment for changing conditions, a housing design that allows operation without air vent holes in the housing, and anti-rotation features that stabilize the level orientation of the float switch body needed for proper operation after installation. By its quick and reliable response, the switch promotes use and longevity of energy efficient air conditioners without concern for the increased condensate produced, protecting the environment and energy resources.

In a method of charging an energy accumulator of a vehicle in a charging station, the presence of a vehicle is ascertained in a defined region in vicinity of the charging station via a wireless communication between a vehicle-side communication device and a communication device of the charging station. The charging process of the energy accumulator in the charging station is cleared, when the wireless communication between a vehicle-side communication device and a communication device of the charging station is established and a parking brake of the vehicle is activated.

A master cylinder for a hydraulic brake or clutch system, in particular, a handlebar steered vehicle, in particular a bicycle, comprises a housing containing a cylinder chamber, in which are disposed a piston slidable therein and a pressure chamber. A compensation chamber is connected with the pressure chamber through at least one compensation bore. Also provided is a cover closing the housing and a counterpart for mounting the master cylinder on a handlebar tube. Further provided is at least one connecting device for connecting the counterpart with the housing of the master cylinder. Included with the connecting device is a first connecting portion for connecting the cover with the housing of the master cylinder and a second connecting portion for connecting the counterpart with the master cylinder and for mounting the master cylinder on a handlebar tube.

A process of fabricating a static structure including an interior volume that includes the steps of mixing coal combustible residual (CCR) with structural reinforcing materials to form a construction material and utilizing the construction material to fabricate exterior enclosure-forming components of the static structure. The enclosure-forming components are sufficiently reinforced, enhanced and / or thick to provide protection against exterior forces directed against the structure.

Coupling element and method for connecting a connection line to a pipe connection of a washing machine having an external thread. The coupling element includes a first end and a nut with an internal thread arranged in the region of a first end. The nut includes an inner ring, an outer ring, and a slip clutch arranged between the inner ring and the outer ring.

A float switch assembly with a housing / clamping structure that is made from plastic and impervious to corrosion, with improvements over the prior art including a thumbscrew positioned between its two upper bracing protrusions and external braces / ribs that make it less likely for the two parts of the housing to flex relative to one another, to provide a more secure connection between the two parts of the present housing during its use to protect a float switch body within its protective housing for reliable shut-off signal activation when needed. The two housing parts are connected together over the top edge of a substantially vertically-extending support surface, such as a plastic condensate collection pan with a flange. Oversized thumbscrews facilitate and expedite installation without drilling any holes in the collection pan.

A two-piece clamping assembly with an integral rail plate used to rapidly and securely mount a float switch within a fluid collection container for fluid level monitoring. It is usable with both metal and plastic condensate collection pans, and successfully accommodates their differing wall thickness dimensions and different upper edge configurations. When its front and back clamping members are joined together over the top edge, lip, or flange of a pan using one centrally located top fastener, and at least one additional fastener is inserted through the back clamping member until it engages the exterior surface of the pan, the pan's upper edge becomes secured within an inverted J-shaped slot formed between the two clamping members. Vertically-extending internal ribs and horizontally-extending projections strengthen the clamping assembly. Preferred plastic materials also make the clamping assembly impervious to corrosion.

An electromagnetic actuator includes a stator and a movable body. The stator includes a core provided with magnetic poles and a coil wound on at least one of the magnetic poles. The movable body includes a permanent magnet and supported in such a manner as to make reciprocating in a direction perpendicular to a direction in which the permanent magnet opposes the magnetic poles. The movable body is reciprocated upon applying an alternating voltage to the coil. An electromagnetic actuator driving method for driving the electromagnetic actuator includes performing feedback control of the alternating voltage in which the alternating voltage is applied to the coil during a first half of a control period and in which an induced electromotive force generated in the coil during a second half of the control period is used as a control signal.

An offshore water-hydrocarbon separator system is capable of entrapping spilled oil offshore, and recovering the oil to a usable state for subsequent refining. The kinetic energy of a towing vessel provides the energy for establishing a flow path of oil and seawater through the hydrocarbon separator. Annular venturi provided at each successive stage in the separator accelerate a core flow of sea water substantially down the center of the flow path, while drag associated with aggregated oil particles forces oil outward, away from the core, to flow along the walls of each stage. The energy that establishes the core flow of water is provided by the kinetic energy of the surface vessel and the acceleration of core flow at each successive venturi. No other source of energy is needed to induce the water hydrocarbon separation.

An integrated soundwall and renewable electrical energy generation system includes a series of metal fin tube foundations; a beam secured to each metal fin tube foundation, wherein the beam includes a lower portion extending into the interior of the metal fin tube and secured thereto, and each beam including channel forming elements; a series of solid fence panels inserted between adjacent beams, with each panel received within the channels formed by adjacent beams; and an electrical energy generator, such as a solar panel array, coupled to select beams above the solid fence panels. Inexpensive energy has always been a boon to spur economic development of a region, and the use of ecologically friendly sources is preferable. The design of the system allows for easy construction of parallel fences to multiply the energy generation with such parallel fences enhancing the barrier aspects of the fence system.

A float switch, housing, and clamping member assembly that is made from plastic and impervious to corrosion, with improvements over the prior art including a wide float switch body for enhanced water displacement that results in a more responsive operation, a housing configured to protect its float switch body from malfunction due to airborne debris, a clamping member configured to create a J-shaped slot between it and the housing when they are connected together over the upper edge of a support surface, such as a plastic condensate collection pan with a flange. Oversized thumbscrews facilitate and expedite installation. Strength-enhancing ribs are associated with the housing and clamping member. Connection between the housing and clamping member can also include a ratcheting configuration.

A line routing device is provided in order to allow simple, reliable electrical linking, in particular of a motor-vehicle sliding door to a vehicle power supply system. The line routing device includes a housing having a movement opening which extends in longitudinal direction and an outlet opening. A movement element is movably mounted in the movement opening and the cable as well as a spring strip, which is bent in a U-shape, are attached to the movement element. The cable is routed along the spring strip to the outlet opening and an end of the spring strip, which is remote from the movement element, is fixed to the housing.

A liquid diffusing device with interchangeable nozzles, comprising a support frame (2) having a passageway (3) for the liquid to be diffused, with an inlet (4) and an outlet (5), at least one nozzle (6), having a liquid outlet section (7) with a predetermined diameter and a corresponding outflow rate, which is removably and selectively attachable to the outlet (5) in a predetermined operating position, means for supporting at least one additional nozzle (6′, 6″, . . . ) having an outlet section (7′, 7″, . . . ) of a diameter other than that of the first nozzle (6), in the non-operating position. The support means comprise a nozzle-holding plate (8) formed of one piece with the frame (2) and having quick connect / disconnect means (9) for the additional nozzle (6′, 6″, . . . ) in the non-operating position.

Control method and control apparatus of the electric motors of a pump unit of a fire protection system, which fire protection system comprises spray nozzles (112), a pump unit, a control system with pressure-measuring means, and piping (105) for conducting extinguishing medium from the pump unit to the spray nozzles, which pump unit comprises pump drives, each of which comprises a pump (101) and an AC electric motor (102, 203a-203f) rotating it, which AC motor can be connected to an AC electricity network via a contactor device (206a-f), in which pump unit the AC electric motors are controlled on the basis of the pressure to be measured in the piping, and in which one of the electric motors (102, 203a-203f) at a time is controlled by means of a frequency converter (108, 204) such that the motor to be controlled with the frequency converter operates as a motor that under the control of the frequency converter steplessly adjusts pressure and the others are started up into the network as steplessly adjusting motors.

The invention relates to dipole and monopole loops with a much shortened emitter relative to the theoretical length thereof and electrically extended at the ends thereof by non-emitting conductor pieces.

This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel micromirrors. The channel micromirrors are individually controllable and continuously pivotable to reflect the spectral channels into selected output ports. As such, the inventive WSR apparatus is capable of routing the spectral channels on a channel-by-channel basis and coupling any spectral channel into any one of the output ports. The WSR apparatus of the invention may further employ a polarization diversity scheme, whereby polarization-sensitive effects become inconsequential and insertion loss is minimized. The WSR apparatus of the invention may additionally be equipped with servo-control and channel equalization capabilities. The WSR apparatus of the invention can be used to construct a novel class of dynamically reconfigurable optical add-drop multiplexers (OADMs) for WDM optical networking applications.