A valve-regulated, maintenance-free lead acid battery has plate compartments which are substantially surrounded by chambers that contain electrolyte absorptive material. Electrolyte droplets escaping through the pressure relief valves of the battery are directed to flow over the absorptive material in the chambers and are absorbed by it, while evolved gas escapes through a vent without appreciable...

The invention relates to a method and arrangement in connection with a winder. In the method, the length of wound thread of all spindles of the winder is measured, and winding of all the other spindles of the winder is adjusted according to the length of the wound thread of one spindle, i.e. reference spindle, such that the length of the wound thread of all spindles is substantially the same durin...

The present invention comprises a novel culture method and device in which living cells or subcellular biocatalysts are immobilized by the opposition of a centrifugal force field and a liquid flow field. The immobilized cells or biocatalysts are ordered into a three-dimensional array of particles, the density of which is determined by the particle size, shape, intrinsic density and by the selectio...

An electrode arrangement for the cells of batteries includes two electrodes each having a three-dimensional grid-type structure, which are held spaced apart from one another. The electrodes are arranged interleaved with one another in all directions in space.

Computerized (e.g., "intelligent") systems for monitoring, diagnosing, operating and controlling various parameters and processes of continuous feed centrifuges is presented. The computer control system actuates at least one of a plurality of control devices based on input from one or more monitoring sensors so as to provide real time continuous operational control. The monitoring sensors may sens...

PCT No. PCT/DK96/00544 Sec. 371 Date Jun. 9, 1998 Sec. 102(e) Date Jun. 9, 1998 PCT Filed Dec. 18, 1996 PCT Pub. No. WO97/22411 PCT Pub. Date Jun. 26, 1997The decanter centrifuge has a bowl with a screw conveyor having a body (4) and a screw (7). Material to be separated into a light phase is supplied through inlet ports (6) in the body, and the heavy phase is discharged through discharge ports in...

PCT No. PCT/SE96/01622 Sec. 371 Date Sep. 15, 1998 Sec. 102(e) Date Sep. 15, 1998 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/23295 PCT Pub. Date Jul. 3, 1997In a decanter centrifuge, which comprises an outer drum (1) and an inner drum (5) concentric therewith, the two drums being rotatable at different speeds around a common center axis, the inner drum (5) carries several blades (6, 7) arranged to ...

A centrifuge for rotating a fluid retentive housing having fluid input and output tubing fixedly connected to a rotation axis of the fluid retentive housing, the centrifuge comprising: a frame; a first rotatable mechanism having a rotation axis, the fluid retentive housing being coaxially mounted thereon for co-rotation therewith; a second rotatable mechanism having a rotation axis, the first and ...

A method and a device for separating a component, such as fibrin I from blood, by centrifugation. The method involves feeding of blood admixed an anticlotter to a first annular chamber in a device, where the annular chamber is defined by a cylindrical outer wall and a cylindrical inner wall, both walls extending coaxially about a common axis, as well as by a top wall and a bottom wall, where the t...

The dual bed cathodic protection system with automatic controls includes 1) a solar power supply to receive sun power from a solar panel; 2) a ground bed assembly which may either be a deep well or surface type; 3) a system automatic control assembly operable to control selected use of either an impressed or sacrificial protection anode assembly; and 4) aprotected structure buried within the groun...

The computer tomograph has a measuring arrangement including an X-ray source (1) and a detector (3). The latter receives X-ray radiation (2) emitted from the X-ray source (1) after it has passed through a measurement field (9). A primary beam aperture (12) is provided to fade in the X-ray beam (2). The detector (3) is constructed of at least two parallel detector lines. Each detector line is made...

A water heater using multiple energy sources features it uses solar energy and wind energy, that is, solar cells and wind-driven electric generator are used to power the electrothermal elements to heat water, or to charge the accumulator for storing electric energy. Gas or electric heater are also used if necessary.

A container comprises two sealingly coupled sections (1 and 2). One container section (2) and the adjacent portion of the other container section (1) are made of solid material, and the two container sections are screwed together. The container sections (1 and 2) comprise their respective chambers (29 and 30) for receiving their respective fluid ingredients and these chambers (29, 30) are intercon...

The improvements permit to convert a sofa having standard cross dimensions into a bed of ordinary length. The folding frame consists in an articulated structure formed by a fixed frame (1), a mobile frame (2), an intermediate frame (3), an auxiliary frame (4) and a further auxiliary frame (5) integral with two supporting legs (6), that acts as support of the stuffing of the back of the sofa or, al...

Three software routines are used. The first tests that the computer's real time clock (RTC) can perform the transition to the year 2000 properly. The second installs a routine for updating the century stored by the RTC's memory when the transition to the year 2000 occurs and is used in the case where the RTC cannot itself perform the transition to the year 2000 correctly. The third scans program, ...

The method involves dividing basic elements of equipment (1 to 8) into three groups (E1, E2, E3) each having a group calculator (C1) (C2) or group calculators (C3, C4). The groups have sources of energy (S1, S2) and the group calculators are connected to a central calculator (CAL) and also have some interconnections between themselves. On the occurrence of a fault or faults the group calculators (...

A polyurethane foam containing a particulate organic polymer having a glass transition temperature of less than 0 DEG C. and a process for preparing such foam is described. A preferred type of particulate organic polymer is a styrene/butadiene polymer. The presence of such particles within a flexible polyurethane foam significantly enhances both the comfort aspect and SAG factor performance of th...

A security system having a two way wireless keypad which operates in a particular manner for improved operation. The keypad processes information to effectively reduce communications between the control panel and the keypad. The keypad selectively activates and deactivates a transmitter and receiver arrangement for power conservation reasons. The system provides confirmation of communications betw...

A computer card including a voltage detection circuit having Flash EEPROM devices and a controller device, the voltage detection circuit further including a variable voltage detector for determining the system voltage level provided by a power supply within the computer product and appropriately enabling a voltage regulator circuit for dividing the system voltage level to a level suited for operat...

The invention relates to a plastic sheeting which is suitable, in particular, for application in the construction industry. It is obtained by employing thermoplastic elastomers and has good humidity-regulating properties and water impermeability. Flame retardancy in accordance with DIN 4102 B2 is obtained by employing melamine, melamine compounds or melamine condensates in the thermoplastic elasto...