Abstract: A control device for use on film cleaners that remove dust, lint and static charge from plastic film surfaces by the use of high velocity ionized air. The high velocity ionized air removes static charge from the film simultaneously as the dust and lint are blown from the surface of the film by the convective action of the air. The control device is automatically activated when film is inserted between two sets of intersecting conductive fibers, thereby breaking the contact between the two sets of conductive fibers. In addition, the control device can be switched between a constant mode, where the air is on continuously, to a pulse mode where the air is pulsed alternately on and off, in a periodic manner, to synchronize the cleaning action with the stop and go advance of an automatic film printer system. The intersecting fibers also prevent the film from being drawn into the air inlets by the "Bernoulli Effect".

Abstract: A device for removing dust, lint and static charge from film and plastic surfaces. The device uses an improved design of rotating brushes incorporating electrically conductive fiber tufts. These electrically conductive fiber tufts remove the static charge while the rotating brush produces a sweeping action as well as an air convective action to remove the dust and conduct it away.

Abstract: A device for removing static charge, dust and lint from surfaces by use of electrically ionized high velocity air. The device generates high air velocities by means of high speed centrifugal impellers. The air from the impellers is passed through ducts to an ionizing section where it is electrically ionized, by high voltage emitters, and then directed through a nozzle means to exit the device to the adjacent atmosphere. Upon coming in contact with a statically charged surface, the ionized high velocity air neutralizes the static charge and convects away any dust or lint adhering thereto.

Abstract: A novel examination light that utilizes a quartz halogen lamp and dichroic reflector to produce heat free white light, mounted on a versatile support arm that is moveable in a vertical arc through any angle about a support axes and is counterbalanced by a unique spring and friction arrangement that allows it to remain, drift free, at any location. The arm is mounted on a vertical pole affixed in a castered base and is rotatable through a horizontal circle of almost two revolutions.

Abstract: A device for eliminating static charge, dust and lint from surfaces by forced convection of electrically ionized air or gas. The device utilizes high voltage direct current and forced convection sources to ionize the air or gas into separate positive and negative flows which are joined into concentric interlaced helical streams in a rotating vortex forming chamber. The rotating streams exit the device into the adjacent atmosphere, whereupon coming in contact with a statically charged surface, they cause the neutralization of the static charge by the alternate passage of the streams of positive and negative ionized air or gas over that surface. The device may also incorporate high velocity jets to additionally convect away dust and lint adhering to a surface.

Abstract: An air cleaning device including an electrostatic apparatus which removes particulates from the air by causing them to be precipitated on an electrically charged grid. The device includes a dielectric conduit structure, open at both ends. One end is the air inlet and the other is the air outlet. Three sets of electrically charged elements are positioned within the conduit. Starting just within the inlet end, they are, in order: (1) a first grid structure maintained at a high negative electrical potential: (2) a needle electrode also maintained at a high negative electrical potential: (3) a second grid structure maintained at a high positive potential. The air molecules and particulates are charged negatively by the needle electrode and are forced away from the negatively charged first grid structure and drawn toward the positively charged second grid structure, by electrostatic forces, causing the air to move through the conduit.

Abstract: A device which enables film cleaners, designed for cleaning strip-film, to also clean disc-film. The device consists of a spindle means, which fits through the center hole of the disc-film and holds it firmly, and a rotational means, which imparts a rotational motion to the spindle, a housing means for enclosing the mechanism, a lever means, which releases the disc-film from the spindle, and an attachment means for holding the device to the film cleaner. In the preferred embodiment, a spring mechanism means is cocked by pivoting the device on the attachment means which moves the disc-film into the jaws of the film cleaner. The spring mechanism means is released as the disc-film reaches its limit within the jaws actuating the cleaning mechanism and rotating the disc-film so that every portion of the disc-film passes through the cleaning jaws many times. Pivoting the device so that the disc-film is moved out of the jaws releases the disc-film from the spindle so that it can be removed.

Abstract: A novel signaling device for mounting on the rear of a bicycle that reflects and redirects light from a remote source back toward that source in the form of a pulsating or oscillating signal. It consists of a light collecting and directing means, such as a reflector or a refractive lens and a corner retro-reflector which is made to oscillate through a range of focal positions. The motion of the retro-reflector causes light from sources at any location in a particular field to periodically be reflected back to that location in a manner that produces either a pulsating signal or a signal that oscillates between separate portions of the device.

Abstract: A novel optical device that is mounted on the handle-bars of a bicycle and provides a rectified forward looking field of view for a bike rider is bent over the handlebars in the head down bike riding position and looking in downward direction. It consists of a first reflecting surface which receives light from the field of view and directs it to a second reflecting surface which, in turn, directs it to the bike rider.

Abstract: A fingerprint inking apparatus, incorporating a self-contained supply of ink and a drive means that automatically produces a uniform film of ink of the correct thickness, on a thin elastic membrane, in preparation to the taking of rolled fingerprints. The membrane is supported on a compressible foam structure or between two rollers such that a downward pressure of the finger causes the membrane to form around the finger, thereby transferring the ink to the finger.