Abstract: An extended range test strip includes a simple system where the end user can determine the concentration of the analyte at high concentration with a single drop of whole blood. A single drop of blood spreads across a spreading layer and into multiple reagent stacks. Multiple reagent stacks of the test strip may be configured to test for different ranges by adding a peroxide modulator. Readings from multiple reagent stacks producing a colorimetric response may be tested simultaneously. Working from the lowest range to the highest range of reagent stacks, the first reagent stack to be less than its maximum range is considered to be the reagent stack that is producing a colorimetric response related to the actual amount of analyte in the sample.

Abstract: A floating conveyor belt cleaner assembly for removing residual material on the surface of a conveyor belt has a scraper assembly with a plurality of scraper blades rotatably mounted between mounting frames attached to the support structure of a conveyor belt adjacent the opposing edges of the belt. A rotating mechanism selectively rotates the scraper assembly relative to the mounting frames to position a new set of scraper blades against the conveyor belt once the worn set of scraper blades requires replacement. A float mechanism permits movement of the scraper assembly vertically substantially perpendicular to the surface of the belt as the scraper blades wear down.

Abstract: A return roller battery has a plurality of idler rollers rotatably attached at either end to opposing mounting plates. The mounting plates are rotatably attached to a conveyor belt frame and selectively rotated by a crank mechanism to position one of the idler rollers beneath the conveyor belt to support the belt. A locking mechanism secures the mounting plates against rotation when an idler roller is in position.

Abstract: A floating conveyor belt cleaner assembly for removing residual material on the surface of a conveyor belt has a scraper assembly with a plurality of scraper blades rotatably mounted between mounting frames attached to the support structure of a conveyor belt adjacent the opposing edges of the belt. A rotating mechanism selectively rotates the scraper assembly relative to the mounting frames to position a new set of scraper blades against the conveyor belt once the worn set of scraper blades requires replacement. A float mechanism permits movement of the scraper assembly vertically substantially perpendicular to the surface of the belt as the scraper blades wear down.

Abstract: A return roller battery has a plurality of idler rollers rotatably attached at either end to opposing mounting plates. The mounting plates are rotatably attached to a conveyor belt frame and selectively rotated by a crank mechanism to position one of the idler rollers beneath the conveyor belt to support the belt. A locking mechanism secures the mounting plates against rotation when an idler roller is in position.

Abstract: An extended range test strip includes a simple system where the end user can determine the concentration of the analyte at high concentration with a single drop of whole blood. A single drop of blood spreads across a spreading layer and into multiple reagent stacks. Multiple reagent stacks of the test strip may be configured to test for different ranges by adding a peroxide modulator. Readings from multiple reagent stacks producing a colorimetric response may be tested simultaneously. Working from the lowest range to the highest range of reagent stacks, the first reagent stack to be less than its maximum range is considered to be the reagent stack that is producing a colorimetric response related to the actual amount of analyte in the sample.

Abstract: An ambulance cot comprising a kickstand having a lowered position and a raised position is disclosed.

Abstract: A multiple level elevating cot adapted to be rolled into emergency vehicles, the cot having a wheeled undercarriage supporting a cot frame having a leading end and a trailing end, The leading end comprises a drop frame adapted to be positionable in extended, middle, collapsed, and lengthened positions. Leg members interconnect the cot frame and the undercarriage. A latching device is adapted to selectively secure the leg members in a plurality of elevational positions. The cot further comprises a pair of sidearm supports provided to the cot frame between the leading end and the trailing end, each of the sidearm supports being adapted to be positionable in vertically-up, vertically-down, substantially horizontal, and folded positions relative to the cot frame.

Abstract: The present invention provides a method for the treatment of interferon resistant tumors through the use of recombinant vectors encoding interferon species. In particular it is noted that interferon species provided by recombinant vectors possesses properties not associated with the recombinantly produced interferon proteins. The present invention further provides compositions useful in the treatment of interferon resistant tumors using recombinant vectors encoding interferons.

Abstract: A multiple level elevating cot adapted to be rolled into emergency vehicles, the cot having a wheeled undercarriage supporting a cot frame having a leading end and a trailing end, and adapted to selectively secure the cot frame in a plurality of elevational positions. The cot frame includes a pair of side extension arms provided between the leading end and the trailing end, each of the side extension arms being adapted to slidably extend outwardly from a stowed position adjacent the cot frame to an extended position substantially perpendicular to the cot frame. The cot further includes a drop frame that may be lengthened and sidearm supports positionable in vertically-up, vertically-down, substantially horizontal, and a folded position relative to the cot frame. The cot frame may form a part of an integral stretcher or may serve as a carrier to which a separable top structure mounts.

Abstract: A collapsible pneumatically operated ambulance cot having a support frame, a wheeled base, a support mechanism disposed therebetween, and a lift mechanism for pneumatically moving the upper frame relative to the lower frame is disclosed. The lift mechanism permits a single attendant to raise the cot from a lowered position to a raised position, and an infinite number of positions therebetween, and to raise the wheeled base relative to the support frame to situate the cot onto an elevated surface such as the transport deck of an ambulance.

Abstract: A cable television measurement system uses a modified spectrum analyzer for determining both carrier-to-noise and triple beat ratios for a cable television (CATV) system. The modified spectrum analyzer is triggered for single sweep during the vertical interval of a selected channel, and the noise amplitude, peak sync tip amplitude and frequency of the channel are determined. The carrier-to-noise ratio is determined from the noise amplitude and the peak sync tip amplitude and the ratio and frequency are displayed. For triple beat ratio measurements a headend unit coupled between a television signal source and a combiner in the CATV headend prior to distribution offsets a selected channel by a predetermined frequency for a specified number of lines in the vertical interval. The modified spectrum analyzer measures the peak sync tip amplitude and a triple beat amplitude at the end of the specified number of lines.