摘要:
An apparatus adapted to disseminate a volatile liquid, such as a fragrance, an insecticide or a fungicide, into an atmosphere, the apparatus comprising a reservoir containing the liquid and a porous transfer member through which the liquid is conveyed from the reservoir to the atmosphere, the apparatus additionally comprising means of pressure equalization between atmosphere and reservoir, which means is adapted to effect a pressure-equalising change in volume of the reservoir, when the apparatus is in operation. The apparatus does not suffer from the leaking problems of known apparatus of the same kind, and is especially useful in apparatus in which one of two liquids, particularly fragrances, may be singly dispensed, by the inversion of the apparatus.
摘要:
A device which uses a heat source for heating and diffusing fragrant oils or insecticidal oils. The oil is contained in a reservoir remote from the heat source and the device comprises means for transferring the oil from a reservoir to a surface of a heat-absorbing means wherein heat from the heat source is transferred by conduction to said surface to volatilise the oil.
摘要:
A fragrance-emitting device for the release of fragrances or other volatile materials, e.g. insecticides employing the heat of a light bulb, comprising a hollow container filled with a fragrance-containing material; the hollow container having a central orifice permitting the container to be fitted over the light bulb.
摘要:
An apparatus adapted to disseminate volatile liquid into an atmosphere from a reservoir, the transfer to atmosphere being achieved by means of a porous transfer member that transfers liquid from the reservoir to an evaporation surface. The evaporation surface is a capillary sheet substantially transversely from the transfer member, and being further characterized in that the material of the sheet is a plastics material having a Shore D hardness of from around 50 to 80 and a thickness of from 0.75-1.25 mm. These sheets make especially good liquid transfer contact with the transfer member.
摘要:
A dispensing device (A) that includes an electrically driven actuator device (21) for dispensing a volatile liquid to an ambient environment comprising: a refill (10), which includes a reservoir of volatile liquid and a closure means (12); and a switch means associated (14) with the dispensing device adapted to engage or interact with the closure means when the dispensing device is appropriately assembled, such that an electrical circuit is completed and the device can operate. Only when the closure means of the refill properly engages or interacts with the switch means can the device be activated. If the closure means is improperly installed within the air treatment device, or if an inappropriate refill is installed, the electrical circuit remains open and the device does not
摘要:
A device for dispensing a volatile liquid as a vapor to an ambient environment, i.e., a room or vehicle interior, which device comprises a reservoir of the volatile liquid, and a porous element which permits the passage of vapor therethrough but does not permit the passage of the volatile liquid therethrough, characterized in that the device greatly decreases the likelihood of undesired spillage of the volatile liquid from the device when the device held in any orientation.
摘要:
An apparatus adapted to both purify an air flow passing through it and disseminate a volatile liquid therein, comprising a source of volatile liquid, a disseminating element for the liquid and a catalyst adapted to remove pollutants at relatively low temperatures, the aforementioned elements being arranged such that the air flow encounters first the catalyst and then the disseminating element. The apparatus is useful, for example, for purifying air and adding fragrance thereto.
摘要:
An apparatus adapted to release individually into an atmosphere one of at least two volatile liquids, each liquid being in heat transfer contact with one face of a theromoelectric device, typically a Peltier device. The apparatus allows the emission of different liquids at different times.
摘要:
A method for the quantitative characterization of a seabed sediment composition and a seabed's layered subbottom structure from at least one normal-incidence, single-channel reflection acoustic amplitude time series seismogram is disclosed. The method detects a plurality of reflections from subbottom interfaces in said seismograms, determines the traveltime, the polarity and the reflectivity of each detected reflection, determines the intrinsic attenuation of the sediment layer between pairs of adjacent reflections, and determines the acoustic properties, layer thicknesses and material properties of the seabed's layered subbottom structure as a function of said traveltimes, polarities and reflectivities of the detected reflections and said intrinsic attenuation of the sediment layer between pairs of adjacent reflections. A forward model describing the physical relationship between the material properties and the acoustic properties of seabed sediments is also disclosed.
摘要:
The invention relates to a method and an apparatus for agile RF spectrum monitoring in a radio system with dynamic frequency access. It provides a spectrum monitor based on non-coherent heterodyne detection that utilizes a DDS signal generator to digitally generate a reference signal at a variable reference frequency for mixing with an input RF signal received from an RF antenna, a pass-band filter and a log amplifier for obtaining energy estimates at a monitored transmission frequency corresponding to the reference frequency. A processor is provided for adaptively selecting sets of monitored transmission frequencies, for controlling the DDS signal generator, and for processing obtained spectral energy estimates to assess spectral usage data.