Abstract: An automated forced-choice dynamic-dilution olfactometer has an odor evaluation module having two or more panelist stations, with a plurality of sniffing ports at each station. At least one signal element at each station is connected to a data control unit. Separate air lines are connected to one each of the sniffing ports at each station. One of the air lines has an odor introduction port.

Abstract: An electrical device to be mounted on a support includes a housing having an inner part and an outer part secured to one another. The housing is mounted on the support in a position in which the outer part of the housing is accessible. A cover plate is provided for obscuring the view of at least a portion of the housing and surrounding areas of the support. The cover plate has at least one through opening in it. The cover plate is secured to the housing by a screw passing through the opening and an aperture. The screw engages the thread of a threaded bore when the device is fully assembled. The outer housing part includes webs at or within the opening for engaging the shank of the screw and temporarily holding it, and with it the cover plate, in their proper positions prior to engagement of the shank thread with the bore thread.

Abstract: An electronic connector includes: a pair of pivotal latches pivotaly mounted on two opposite end portions of the electronic connector, each pivotal latch smoothly engageable with a side recess or opening formed in a right or left end portion of the daughter board, whereby upon a pivotal movement of each latch by biasing each latch sidewardly outwardly to disengage the latch from the daughter board, the daughter board can be easily quickly removed from the connector for maintenance and the like.

Abstract: A thermal storage device interacting with a circulating coolant in an air conditioning system is disclosed. The thermal storage device includes a hollow ball containing a liquid to be frozen by the circulating coolant. A generall ball-shaped flexible air pocket is disposed in the hollow ball. An elongated weight member has one end connected to the air pocket and the other end extended to the internal face of the hollow ball, so that the center of the air pocket can be kept in the geometrical center of the hollow ball. The elongated weight member has a predetermined weight so that the total weight of the hollow ball, the air pocket and the elongated weight member is greater than the buoyancy force exerted on the hollow ball by the recirculating coolant. Therefore, the thermal storage device can always be submerged in the recirculating coolant and thus achieve a good heat transfer effect.