Abstract: A device is provided for storing a supply of particles for use in a developer unit of an electrophotographic printing machine. The device includes an open ended container which has a chamber in communication with the open end of the container. The particles are stored in the chamber of the container. The device also includes a feature associated with the container which extends substantially the length of the container, for urging the marking particles in the chamber toward the center of the chamber.

Abstract: A ribbon cartridge and drive system for use in printers, typewriters, copiers or the like in which a supply spool and a take-up spool are enclosed in a housing with each spool extending from the housing for selective alternate engagement with a drive member connected to a brake member, both being coordinated with the movement of a printing head. A stripper bar peels the ribbon from a copy sheet downstream of printing head movement. The drive system cooperates with the printing head whereby a method of ribbon conservation is realized.

Abstract: A device is provided for storing a supply of particles for use in a developer unit of an electrophotographic printing machine. The device comprises an open ended container defining a chamber in communication with the open end thereof. The particles are stored in the chamber of the container. The device further comprises a puncturable seal attached to the open end of the container for sealing the chamber. The container is installable into the developer unit without removal of the seal.

Abstract: In a universal document feeder with which either conventional cut sheet documents or computer form (CF) web fan-folded documents may be fed to an imaging station, with an upper document loading tray with an associated feeder, but also having a separate side feeding entrance for feeding computer form web to the imaging station, there is provided a CF guide such as a bail pivotally mounted to the document feeder with a web guide surface positionable substantially above the upper document loading tray and adjacent the side of the document feeder having the side feeder entrance. This forms guide provides a path thereover for unfolding and upwardly feeding out CF which is fan-fold stacked in the upper document tray, and then downwardly in a path to the side entrance feeder, defining a web slack loop.

Abstract: The disclosed battery-powered vapor dispensing apparatus has a housing with an access opening, an air intake port, an air discharge port, and means for supporting a vaporizable product in a path between the intake and discharge ports. A structurally-integrated mechanism for creating air flow along the path, assembles as a unit with the housing. The mechanism includes a chassis and an electric motor having electrical contact lugs on one end and a shaft supporting a fan projecting from the other. The chassis comprises a base, means for mounting the motor, a battery compartment, and means for mounting two resilient wire connectors such that one portion of each is resiliently urged against a lug of the motor and a second portion of each is resiliently urged against a battery terminal.

Abstract: A battery-powered apparatus, for inducing air flow past a product capable of being vaporized, includes a compact housing that comprises a hollow outer shell and a hollow, generally cylindrical inner shell, having an axis, on which the operating components of the apparatus are supported. The inner shell is mounted with the outer shell by a hinge to pivot substantially on the axis between closed and open positions. In the closed position the inner shell compliments the outer shell to define an enclosed space and shield the apparatus components. In the open position, the inner shell is nested within the outer shell to expose the apparatus components. The product and a battery for powering the apparatus may be assembled into a cartridge formed to be received in the apparatus housing. Electrical battery contacts and a support for the cartridge in the housing are also disclosed.

Abstract: A device for releasing a volatile substance into the environment in a controlled manner comprises a reservoir of substance-absorbent material, for storing the substance, that is encapsulated in an envelope, at least a portion of which comprises a permeable material having porosity at least equal to ultramicroporosity. The permeable envelope portion has a greater affinity for the substance than does the reservoir material. The remainder of the envelope comprises a material impermeable to the substance. Accordingly, the substance permeates through the permeable envelope portion to be released therefrom in vapor form into the environment.

Abstract: A walled enclosure or cage is provided in which laboratory animals may be maintained for observation and evaluation. The floor of the enclosure is provided by a plurality of conductive bar elements that are spacially separate and extend across the bottom of the enclosure. Spacial separation of the bars insulates one from the other and further, space is provided in the floor to remove animal waste, excess food and the like. An electrical resistor is connected between each two adjacent conductive bars and cooperate with the bars to define a resistor network to which a closely controlled feed current is supplied. An animal makes contact with the conductive bars which lowers resistance of the network and produces a voltage change. The resistor network is a.c. coupled to a differential amplifier, and a comparator which receive pulses from capacitors between the network and the amplifier and prepare same for an interface means for a pulse recording system.