Abstract: There is disclosed a tree harvesting apparatus which provides a helical spline for permitting movement of a harvesting head about a central vertical axis thereof. This provides enhanced manoeuverability of the head to prevent damage to saplings or other immature timber. A chain saw chain detensioning system is also disclosed. The system permits a quick removal of a saw chain from the chain saw without the use of tools therefore is more easily changed in an expedited manner.

Abstract: The present invention discloses an aircraft control system having simultaneously controllable rear aileron/elevators and a retractable body flap for longitudinal stabilization. The aileron/elevators are airfoils comprising the complete horizontal tail plane. Control arms for the rear aileron/elevators are capable of pivotal movement about the longitudinal axis of the aircraft while the aileron/elevators are secured to the control arms by axles pivotal about the lateral axis of the airfoil, for directional control. With two degrees of rotational movement, the aileron/elevators are capable of maneuvering the aircraft in all three axes, providing a much simpler mechanism than the conventional control surfaces. Added safety is accomplished by removing lateral control from the wings. Weight savings and reduced drag also result from eliminating the vertical stabilizer and rudder and consolidating the controls for both ailerons and elevators of conventional aircraft.

Abstract: A method and apparatus for the treatment of sediment. The apparatus provides a plurality of injection sites for injecting a biochemical oxidant into the sediment. The oxidant is useful for oxidizing a bacterial growth inhibitor to a non-inhibiting form thus permitting bacterial growth and thus greater numbers for sediment detoxification.

Abstract: Disclosed are embodiments of a composite type spacer for use in insulated glass assemblies. In one embodiment, the spacer includes an alternating sequence of cellular and non-cellular materials. In a further embodiment, there is disclosed a C-shaped body with a cellular material disposed therein and further including a plurality of adhesives and sealants for engagement of the body with substrates. In both instances, the result is a superior one-step extrudible spacer which circumvents the energy limitations with the presently known spacers.

Abstract: A method of removing contaminated phosphate ester materials is provided. The method involves the use of an anionic resin and a polymeric sorbent. The contaminated phosphate ester material is passed into contact with the anionic resin and optionally the sorbent. The method is particularly useful since it removes substantially all of the contaminants, generally metal material and acids, from the phosphate ester such that the phosphate ester can be reused for further applications.

Abstract: There is disclosed a method for applying sealant material between spaced-apart substrates in an insulated glass assembly. The method is sequential and employs extrusion nozzles and smoothing plates. The smoothing plates move in concert with the extrusion nozzles to ensure uniform distribution of the sealant material from the spacer, spacing the substrates, to the perimeter of the substrates. The smoothing plates ensure a uniform and planar surface at the perimeter. The method of operation is automated and accordingly, the sealant can be applied in an expedited manner with a high degree of precision and uniformity.

Abstract: A resuscitation and inhalation device which can be used alternatively in each of two modes. The flow of oxygen or gas is controlled by a control valve, itself controlled by a movable member acted upon by the pressure of oxygen or gas in a chamber after having flowed passed the control valve. On meeting a preset maximum pressure, the valve member moves to close the control valve. The movable valve member is acted upon by a magnetic field which is adjustable, and the magnetic field strength sets the pressure at which the valve member moves. Oxygen or gas is admitted to the control valve by two alternative inlet valves, one for resuscitation with only oxygen or gas flowing through the mask, and one for inhalation, with oxygen or gas and air or a second gas being fed through the mask, allowing ambient air to mix prior to the flow to the patient as a result of inhalation effort by the patient.