摘要:
A photographic element is provided on one or both surfaces thereof with a fire-retardant protective overcoat comprising (1) a water-soluble film-forming copolymer of methyl inyl ether and maleic anhydride cross-linked by a water-soluble polyhydric alcohol and (2) a water-soluble ammonium polyphosphate which reacts with the polyhydric alcohol to form a fire-retardant composition when the protective overcoat is exposed to the heat of a fire. The protective overcoat is transparent, colorless, durable, non-tacky and moisutre resistant and provides especially effective fire-retarding properties for photographic products used in large display format such as back-drops on movie sets or free-hanging murals at trade shows.
摘要:
Improved techniques for infra-red generating gas-fired burners to heat-treat substrates with or without the added heating effects of the hot combusted gases generated by the burners. Burners can have ceramic fiber mat held over shallow combustion mixture plenum essentially completely spanned by baffle. Mats can have folded-in edges to permit close packing. Plenum can have partition forming small ignition compartment with igniter against covering portion of mat.
摘要:
Improved gas-fired radiant heater has porous refractory panel mounted by its edges on a support to define a gaseous combustion mixture plenum from which the mixture flows through the panel to burn at its outer face, and a conduit for non-combustible gas extends along the margin of the panel and discharges the non-combustible gas through the panel all along its margin to keep the combustion mixture from escaping through the panel edges where burning can damage the panel. No further sealing of the panel margin is needed, but the sealing is effected with less of the non-combustible gas if the panel edges are compressed so as to reduce their thickness about 10%. One or more of the margins of a rectangular panel can be arranged as a depending flange with its mounting at least partially recessed so that two or more panels can be juxtaposed at such margins to form an effectively continuous radiating surface of relatively large size. The air seal construction also makes such heaters very practical for firing house heating furnaces.
摘要:
An animal behavioral control device having a microphone responsive to both ambient noise around the animal and to emitted sound from the animal such as barking for extending an electrical signal corresponding only to the emitted sound and a vibrating apparatus being activated in the presence of the electrical signal for vibrating the area of the animal's neck nearest the vocal cords to cause the animal to be distracted either in a first range of preferred vibration in a first embodiment of the invention, or to swallow in a second range of preferred vibration in a second embodiment of the invention thereby substantially preventing the animal from emitting the barking sound.
摘要:
Provided is an acoustic housing including a cover including a first perimeter defining an open cover portion, the cover having a cover length, and a cover height, and a body including a second perimeter defining an open body portion, wherein either the first or second or both perimeters are chamfered, configured to receive one or more electrical components and to sealingly engage with the first chamfered perimeter, the body having a body length, a body height, and an under-surface, and the body including an engagement portion projecting from the under-surface and having an engagement length, an engagement height, and an engagement surface configured to engage an outer surface of a tubular.
摘要:
In one embodiment, the present disclosure is a method and apparatus for programming session initiation protocol back-to-back user agents. In one embodiment, a method for programming a telecommunication feature as a session initiation protocol back-to-back user agent includes receiving source code defining the feature, the source code using at least one abstraction that hides session initiation protocol signaling details required by the feature and generating executable code that causes a session initiation protocol server to execute the feature, in accordance with the abstractions.
摘要:
Personal mobility, multiparty control, and device augmentation features are provided within a voice-over-Internet protocol environment, such as a distributed feature composition (DFC) telecommunications architecture. The personal mobility features allow a caller to be identified to a callee using a desired identifier in place of an identifier of the device from which a call is made. Such personal mobility features are made available in multiparty calling environments and after mid-call moves. Device augmentation features provide enhanced calling options to a device that may otherwise be unequipped to provide such options, thus enabling personal mobility and multiparty control features across a wide variety of telecommunications devices.
摘要:
Personal mobility, multiparty control, and device augmentation features are provided within a voice-over-Internet protocol environment, such as a distributed feature composition (DFC) telecommunications architecture. The personal mobility features allow a caller to be identified to a callee using a desired identifier in place of an identifier of the device from which a call is made. Such personal mobility features are made available in multiparty calling environments and after mid-call moves. Device augmentation features provide enhanced calling options to a device that may otherwise be unequipped to provide such options, thus enabling personal mobility and multiparty control features across a wide variety of telecommunications devices.
摘要:
This invention relates to the application of hydrophobic interaction chromatography combination chromatography to the purification of antibody molecule proteins.