Abstract: A regulator is provided for maintaining a preset air velocity through the work chamber of a fume hood. The regulator compares a measured air velocity at the inlet into the chamber with a preset air velocity and adjusts air velocity in response to differences in measured and preset values. Air velocity is measured with a high sensitivity pitot with an exterior end to be positioned outside the fume hood, and an interior end to be positioned inside the fume hood. The pitot includes spaced parallel plates with front and rear ends, an exterior air pressure sensor positioned at the front end of the plates, and an interior air pressure sensor positioned at the rear end of the plates. The interior air pressure sensor includes openings substantially equidistant between the plates that are toward the rear of the pitot when the pitot is mounted on a fume hood. The exterior end of the pitot preferably curves below horizontal to minimize the effect of transient air currents.
Abstract: A simulated Christmas tree light display having a circular ring and a plurality of elongated legs attached to the ring. Each of the elongated legs has a first end connected to the ring and a second end positioned opposite the ring. The first end has an aperture for threading the ring through the leg and a flattened end section. The apertures are sized to allow the legs to rotate about the ring to form a variety of angled designs. Lights and other holiday decorations may be wrapped about the legs to further provide the appearance of a lighted Christmas tree.
Abstract: Broadcast towers used for the co-location of wireless antennas and having a plurality of antenna wires spaced from a support are modified with an insulation system including flexible, non-conductive insulation sleeves to cover the lower section of the antenna wires. These sleeves include an inner tubular member having an inner diameter greater than the outer diameter of the antenna wire and an outer tubular member having an inner diameter greater than the outer diameter of the inner tubular member. An improved cabinet for isolating cables is also described. The cabinet includes a conductive housing having a top wall, a bottom wall, and parallel first and second side walls joining said top and bottom walls, and removable front and back plates. A non-conductive cable support frame is slidable within said housing. The side walls have corresponding attachment means, whereby a side wall of one cabinet can be aligned with and attached to a side wall of another cabinet of the same construction.
Abstract: A filter for a filter vessel which converts the filter vessel to use disposable filters for removing hazardous particulate matter from an aqueous flow. The filter includes a rigid support housing having an input passage for the aqueous flow, an exit passage for the aqueous flow, an internal sealing surface and a locking seal located adjacent to the input passage to securingly engage the filter vessel for the aqueous flow. The invention also includes a sleeveless disposable filter cartridge. The cartridge includes a flexible filtering medium having first and second ends. A terminal seal is affixed to the first end of the filtering medium for sealing engagement with the filter vessel and a wall seal on the second end of the filtering medium for engagement with the internal sealing surface of the support housing.
Abstract: An apparatus for separating an immiscible or insoluble fluid mixture into its components, namely, a less-dense component and a denser component, is described. The apparatus may be used in commercial kitchens to separate grease-oil/water mixtures into a grease-oil component and a gray water component, the grease-oil being diverted to a receptacle for subsequent disposal and the gray water component being directed to a drain or sewer. The apparatus may be described as a pump/separator when attached to a vacuum source or a pump to assist with filling. Additionally, a compressed gas source may be attached to the apparatus to assist with the discharge of the denser component and the less dense component. The apparatus may include a controller, such as a microprocessor, to coordinate filling, separation, and discharge. Parallel and serial arrangements of the apparatus are shown.
Abstract: An athletic shoe cleaner for cleaning a shoe bottom, especially the bottom of a shoe having non-metal spikes. The athletic shoe cleaner includes a pair of opposed faces each having a cleaning surface having a plurality of spaced apart rods, wherein each of the plurality of spaced apart rods is formed from a semi-rigid material. In the preferred embodiment, the cleaner includes a flexible carrying strap in the form of a continuous loop for permitting the cleaner to be attached to a golf bag or golf cart. Also, in the preferred embodiment, the opposed faces are generally round and the plurality of spaced apart rods are arranged in an overlapping and radially symmetrical fashion with respect to the center of the cleaner with the height of each of the plurality of spaced apart rods increasing from the outer edge to the center.
Abstract: A moving fabric web vision inspection system. The apparatus includes at least two electronic cameras on one side of the moving fabric web for measuring the light intensity of a predetermined area of the moving fabric web. A high frequency, backlight, contrast panel on the other side of the moving fabric web provides reference point for the cameras to detect a defect. A controller connected to each of the electronic cameras generates a stop signal if the light intensity of the predetermined area of the moving fabric web deviates from a predetermined value. The predetermined value corresponds to a detected defect in the moving fabric web. Finally, a repair station downstream from the cameras allows an operator to repair a defect detected by the vision inspection system.
March 1, 1999
Date of Patent:
July 10, 2001
Sara Lee Corporation
Edmund L. Pace, Glenn R. Pierce, John R. Everhart, David L. Kamp, Jimmy F. Plyler, Dennis Starnes, James Moore Schenck, George S. Noonkester