Bell + Howell Company

Clintec Nutrition Company

Baxter International Inc.

Rudolph Starai

Aleandro DiGianfilippo

James R Hitchcock

Robert E Lewis

Michael J Becker

Randall A Zielsdorf

Leon Huang

James P Vos

Donald W Warner

Robert R Parker

Nicholas Mischenko

A method for transferring fluids from multiple source containers to a single receiving container wherein fluid is transferred from a source container to a transfer chamber under the influence of a differential pressure and under the control of an occlusion force between the source container and the transfer chamber; the amount of fluid in the transfer chamber is confirmed; and, subsequently, the fluid is transferred from the transfer chamber to the receiving container under the influence of a differential pressure and under the control of an occlusion force between the transfer chamber and the receiving container.

Automated system for adding multiple fluids to a single container

A device is described for accurately transferring multiple individual fluids from multiple source containers into a single receiving container. Fluid flows from the multiple source containers through individual fluid conduits to a chamber having a single fluid outlet conduit. The fluid outlet conduit is in fluid communication with a single receiving container. A pressure conduit is in communication with the chamber for alternately creating positive and negative pressures in the chamber to cause fluid to flow from the individual source containers into the chamber, and to cause fluid to flow from the chamber into the receiving container in response to commands from a control means in the device.

A device is described for accurately transferring multiple individual fluids from multiple source containers into a single receiving container. Fluid flows from the multiple source containers through individual fluid conduits to a chamber having a single fluid outlet conduit. The fluid outlet conduit is in fluid communication with a single receiving container. A pressure conduit is in communication with the chamber for alternately creating positive and negative pressures in the chamber to cause fluid to flow from the individual source containers into the chamber, and to cause fluid flow from the chamber into the receiving container in response to commands from a controller.

A slide tray position sensing arrangement is provided for slide projector apparatus. The slide tray position sensing arrangement is arranged at a detection station. A coded aperture ring is provided that moves in a manner correlated to the movement of a slide tray turntable. The slide tray turntable carries the slide tray that holds the slides for projection and also functions as a tray transport arrangement. The coded aperture ring includes two circumferential arrays of apertures. Each of the apertures in the first array corresponds to a controlled slide position of a first tray type; e.g., an 80 slide tray. Each of the apertures in the second array corresponds to a controlled side position of a second tray type; e.g., a 140 slide tray. The slide tray position sensing arrangement is controllable to selectively sense the appropriate array of apertures corresponding to the slide tray type being utilized. In a first arrangement, the position sensing arrangement is selectively movable between two detection positions; each of the detection positions being aligned with a respective one of the aperture arrays. In a second arrangement, two detection arrangements are provided; each of the detection arrangements being aligned with a respective one of the aperture arrays.

Slide tray position sensing arrangement for slide projector apparatus

Control apparatus is provided for a slide projector to accurately control rotation of a slide tray to predetermined slide positions of the slide tray and to provide integrated control of the slide change function at each slide position. The control apparatus operates in a forced mode between slide positions and operates in a servo mode to accurately position the slide tray at each of the predetermined slide positions. The detection of the slide positions utilizes a circumferential, apertured ring carried on a movable turntable that also carries the slide tray; the ring including a single incremental position aperture corresponding to each of the slide positions. Dual photodetectors are positioned at a sensing station to sense the respective slide position apertures, to provide differential position feedback detection signals in a servo loop, to interrupt the forced mode of operation and for controlling the stopping and positioning of the slide tray to a selected slide position in the servo mode. The control apparatus is operable by a forward/reverse selector switch in a first manual arrangement. Further, the control apparatus is also operable to advance to successive slide positions in response to a control signal derived as a tape advance signal from a cassette tape at variable, preprogrammed intervals. A random access slide projector is provided in another arrangement with the control apparatus being actuated either by decoded slide addresses from a program tape, or by the direct input from a local or remote keyboard.

Tray drive and slide change control apparatus for slide projector

A servo control arrangement is provided that accurately controls the positioning of a movable member. The movable member is controlled by a motor through a drive train. A coded member is carried either by the drive train or the controlled movable member so as to move in accordance with the controlled movable member. The coded member includes an array of apertures with each of the apertures corresponding to a controlled position of the controlled movable member. In a preferred arrangement, the controlled movable member is a rotary turntable that carries a slide tray for projection apparatus. In that arrangement, each of the apertures corresponds to one of the slide positions of the rotary turntable and slide tray. Feedback information representing the position of the coded member is provided by alternately energized light sources and a single photodetector device. The light sources are disposed on one side of the coded member and the single photodetector is disposed on the opposite side of the coded member such that light from the illumination sources passes through each aperture of the coded member and impinges upon the photodetector device as each aperture moves to within a predetermined positional range of a detecting station formed at the point of alignment of the illumination sources and the photodetector. The output of the photodetector represents the illumination received by the photodetector during the energized time of each respective illumination source. Thus, the output of the photodetector provides differential position feedback signals during the respective energized time period of the illumination sources; the differential position feedback signals being utilized to control operation of the motor.

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Arlington Heights, IL, United States of America

Rudolph Starai