摘要:
A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives gas propellant from a portion of the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm moves, carrying with it a seal so as to unseal an outlet channel, and thereby initiate a spray burst of the main active chemical. The diaphragm assumes its original position when the pressure within the accumulation chamber falls below a threshold pressure.
摘要:
A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives gas propellant from a portion of the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm moves, carrying with it a seal so as to unseal an outlet channel, and thereby initiate a spray burst of the main active chemical. The diaphragm assumes its original position when the pressure within the accumulation chamber falls below a threshold pressure.
摘要:
A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm moves, carrying with it a leg so as to unseal a valve stem, and thereby initiate a spray burst. The diaphragm assumes its original position when the pressure within the accumulation chamber falls below a threshold pressure. A barrier prevents the aerosol container from resupplying the accumulation chamber at a high rate during the spray phase, preferably due to a textured interface between the barrier and a passageway in which it is housed.
摘要:
An valve assembly is provided that automatically dispenses aerosol content from a can at predetermined intervals. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm flexes to initiate a spray phase, during which the aerosol content is delivered from the accumulation chamber to the ambient environment. A rotatable pawl provides resistive pressure and control of diaphragm movement.
摘要:
A valve assembly can automatically dispense aerosol content from an aerosol container at predetermined intervals without the use of electric power. A diaphragm at least partially defines an accumulation chamber that receives aerosol content from the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm moves axially, carrying with it a leg so as to unseal an outlet, and thereby initiate a spray burst. A pawl extends from the diaphragm, and engages a retention surface to resist movement of the diaphragm and prolong the accumulation phase. The diaphragm assumes its original position when the pressure within the accumulation chamber falls below a threshold pressure.
摘要:
The present invention includes processes for producing 5-hydroxymethyl substituted oxazolidinone alcohols (III) from carbamates (IIA) or a trifluoroacetamide (IIB) using a dihydroxy compound (I) or glycidol (IV) starting material and for the transformation of the hydroxymethyl substituted oxazolidinone alcohols (III) to the corresponding amino compounds, 5-aminomethyl substituted oxazolidinone amines (VII) which are acylated to form commercially useful antibacterial 5-acylamidomethyl substituted oxazolidinone (VIII).
摘要:
A device supports and dispenses volatile materials. The device is self-supporting and has a tent-like configuration. It can be hung from a bar. One of its side panels is connected to another by a tab and slot, or tab and pocket, arrangement above a base. The base connects the side panels. There is a reservoir for dispensing the volatile material which is mounted on one of the side panels, with a rear of the reservoir being positioned between two of the panels above the base.
摘要:
Apparatus for placing contents of a first container in fluid communication with a delivery apparatus includes an actuating element carried by the delivery apparatus and a valve element carried by the first container. At least one of the actuating element and the valve element defines a flow path from the first container to the delivery apparatus when the actuating element and the valve element are engaged with one another. The actuating element is engageable with a circular cylindrical valve of a second container to prevent flow of contents of the second container into the delivery apparatus.
摘要:
A time duration of end of product life indicator is disclosed which utilizes a volatile dye coated or impregnated into a substrate or carrier. The dye evaporates as a volatile component of the product evaporates thereby changing the color of the substrate or carrier. The consumer is alerted to the depletion of the volatile component of the product when the substrate or carrier changes from a colored or dyed state to an uncolored state. As a result, a visual time duration or end of product life indicator is provided.
摘要:
Novel antibiotics, 7(R)-0-alkylnogalarols, prepared by acidic alcoholysis of nogalamycin of nogalarol, which are active against various microorganisms, for example, Bacillus subtilis, Streptococcus pyogenes, Sarcina lutea, Bacteroides fragilis, Clostridium perfringens, and Mycobacterium avium. Thus, they can be used to inhibit the growth of the above microorganisms in various environments. Further, the invention compounds possess unexpected superior activity against P388 leukemia infection in laboratory mice. Thus, the compounds of the invention can be used to treat laboratory mice infected with P388 leukemia.