摘要:
An inflator for an air-bag comprises at least one gas bottle (1, 2) containing pressurised gas. The gas bottle is sealed by a rupturable foil (9). There is a support member (15) engaging the rupturable foil to maintain it in an unruptured state. The support member (15) is retained in an initial position by a part (23) of a piston element (20) which directly engages the support member (15). The piston element (20) is associated with a squib (11) to drive the piston element from an initial position to a release position in which the piston element no longer engages the support member (15). This permits the support member (15) to move to a position in which the foil (9) will rupture to permit gas to escape from the bottle. The preferred embodiment has two gas bottles each sealed by a respective foil each maintained by a support member which directly engages a single piston member.
摘要:
In a method for operating a passive matrix-addressable ferroelectric or electret memory device, a voltage pulse protocol based on a 1/3 voltage selection rule is used in order to keep disturb voltages at minimum, the voltage pulse protocol comprising cycles for read and write/erase bases on time sequence of voltage pulses with defined parameters. The method comprises a refresh procedure wherein cells for refresh are selected and refresh requests processed by a memory device controller, the refresh requests are monitored and processed in regard of ongoing or scheduled memory operations, and refresh voltage pulses with defined parameters are applied to the memory cells selected for refresh, while simultaneously ensuring that non-selected memory cells are subjected to zero voltage or voltages which do not affect the polarization state of these cells.
摘要:
A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.
摘要:
A method and apparatus for performing read and write operations in matrix-addressed memory array of memory cells is described. The memory cells comprising an electrically polarizable material exhibiting polarization remanence, in particular and electret or ferroelectric material, where a logical value stored in a memory cell is represented by an actual polarization state in the memory cell. The degree of polarization in the polarizable material is limited during each read and write cycle to a value defined by a circuit device controlling the read and write operations, with said value ranging from zero to an upper limit corresponding to saturation of the polarization and consistent with predetermined criterta for a reliable detection of a logic state of a memory cell.
摘要:
A valve stack for high voltages includes a number of electrically interconnected valve modules, some of which are disposed one above the other. To prevent a large fire in a valve module from spreading upwards to valve modules positioned above it, fire screens are arranged between valve modules located one above the other.
摘要:
An annular saw blade has a outer periphery with cutting or tearing members (15), an inner periphery or inner edge and an annular web portion (16) between the inner and outer peripheries. The saw blade (8) has at least one annular drive surface of a flexible, polymeric solid material (14), against which flexible drive surface a rotatable drive member (13) is intended to be pressed to effect the rotation of the saw blade about its center of rotation. An annular saw for this saw blade has at least one rotatable drive member (30) with projections (37) intended to be pressed into said flexible material of the saw blade.
摘要:
A head which is intended to be mounted on a ladle, is provided inside with refractory material. At least one burner for liquid or gaseous fuel and oxygen gas for heating the melt in the ladle is disposed in the head. The head is provided with retainer means for the burner, by the intermediary of which the burner is axially shiftably disposed in relation to the surface of the melt bath and is rotatably disposed in relation to the vertical line of the burner to the surface of the melt bath. Depending upon the burner output, the burner is adjustable so as to emit the best possible heat transfer from the burner flame to the melt bath and, at the same time, to cause the slightest possible chemical action on the melt bath.
摘要:
A cutting tool insert for machining by chip removal includes a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel, onto which a hard and wear resistant coating is deposited by physical vapor deposition. The coating includes a polycrystalline nanolaminated structure of alternating layers A and B where layer A is (Ti,Al,Me1)N and Me1 is optionally one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is optionally one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 20 μm and method of making the same. This insert is particularly useful in metal cutting applications generating high temperatures with improved edge integrity, machining of super alloys, stainless and hardened steels.
摘要:
Power modules and related methods are providing configured to supply power from a power source to a power consuming unit. The power module configured to disconnect power in the power module in case of excess currents through the circuit breakers.
摘要:
A woven airbag fabric includes a first type of filament yarn, at least a second type of filament yarn and a silicone-based coating. The first type of filament yarn is chosen from the group of polyolefin filament yarns. The at least a second type of filament yarn is chosen from the group of polyamide and polyester filament yarns.