Abstract: A rack mount assembly measurement tool, for determining physical values including air flow and heat loads, includes a front assembly and a rear duct assembly that are non-intrusively and releasably mounted on the front and rear of such rack mount enclosure. Physical values are sensed at multiple vertical locations to enable a determination of overall and localized heat loads within the enclosure. Front sensor values are collected and wirelessly transmitted from the front assembly to a receiver/processor supported on the rear duct, which generates computed values that are displayed in addition to the sensed values.

Abstract: A device for monitoring an installation comprising means for issuing a cue to the environment of a camera indicating that the camera is passing from a state in which it is not capable of picking up images to a state in which it is capable of picking up images, or is indeed picking them up, and vice versa. The cue is issued in at least one of the following two forms: a movement of a mask suitable for covering a lens of the camera; and a sound signal.

Abstract: A rack mount assembly measurement tool, for determining physical values including air flow and heat loads, includes a front assembly and a rear duct assembly that are non-intrusively and releasably mounted on the front and rear of such rack mount enclosure. Physical values are sensed at multiple vertical locations to enable a determination of overall and localized heat loads within the enclosure. Front sensor values are collected and wirelessly transmitted from the front assembly to a receiver/processor supported on the rear duct, which generates computed values that are displayed in addition to the sensed values.

Abstract: A method for preventing air recirculation in a data center is provided.

Abstract: The present invention is a floor care appliance having a filter member that has one portion being cleaned at all times. The filter is utilized for separating fine particles from a dirt laden airstream that has been previously cleaned of larger particles. The hollow interior of the filter is divided radially into equally sized elongated portions. The filter is rotated so that one elongated portion of the filter is rotated past a port located at one end of the filter which introduces reverse airflow through the filter to clean the surface of the filter. The entire filter is cleaned with each complete revolution of the filter.

Abstract: A floor cleaning device comprises a base portion for movement along a surface and a handle portion pivotally connected to the base. The base portion further includes a suction nozzle and a brush assembly for agitating the surface, wherein the brush assembly and the nozzle assembly are in a first position raised off of the surface for vacuuming the surface, and the nozzle assembly is lowered to a second position contacting the surface for collecting and picking up liquid and dirt from the surface. A method of cleaning a surface by first dry vacuuming the surface using a cleaning unit in which the nozzle assembly is raised to pick up particles and then wet vacuuming the floor with the nozzle assembly lowered to collect and pick up dirt from the floor mixed with cleaning solution distributed on the floor.

Abstract: A floor cleaning device comprises a base portion for movement along a surface and a handle portion pivotally connected to the base. The base portion further includes a suction nozzle and a brush assembly for agitating the surface, wherein the brush assembly and the nozzle assembly are in a first position raised off of the surface for vacuuming the surface, and the nozzle assembly is lowered to a second position contacting the surface for collecting and picking up liquid and dirt from the surface. A method of cleaning a surface by first dry vacuuming the surface using a cleaning unit in which the nozzle assembly is raised to pick up particles and then wet vacuuming the floor with the nozzle assembly lowered to collect and pick up dirt from the floor mixed with cleaning solution distributed on the floor.

Abstract: An accelerometer having a pair of spaced apart planar electrodes in a housing wherein one of the planar electrodes is made of a thin film and has a mass attached to one side such that acceleration causes the thin film to flex. A solid state amplifier is located in the housing attached to one of the planar electrodes to measure the change in capacitance caused by the flexing of the thin film. The solid state amplifier may be an NPN transistor. The mass may be a 4.5 mm steel airgun shot, and the thin film may be 1 mil polyester aluminized metallic film. The output of the accelerometer is connected to one input of a operational amplifier, and the other input of the operational amplifier is connected to a transducer measuring ambient noise such that the ambient noise is removed from the signal from the accelerometer.

Abstract: A pastry mould, permitting even cooking and easy removal of the cooked contents of the mould, has a flat base with two upstanding tongues spaced apart and positioned opposite each other adjacent the periphery of the base, each such tongue carrying a pivot for two half portions of an enclosing rim, each half portion having its ends connected to a respective one of the tongues by the pivot thereon, such that the rim portions are each movable about the pivots into a position lying against the flat base, and into a position raised away from the base.