Abstract: Data structures, a method, and an associated transmission system for IP fragmentation and IP reassembly on network processors in order to minimize memory allocation requirements. Frame data for IP fragmentation or reassembly on a network processor is read into buffers to which are associated various control structures. The control structures permit IP fragmentation or reassembly to be accomplished without creating multiple copies of the frame or fragments.

Abstract: Off-current is not compromised in a field effect transistor having a gate length less than 100 nanometers in length by maintaining the conduction channel width one-half to one-quarter of the gate length and locating the gate on at least two sides of the conduction channel and to thus create a full depletion device. Such a narrow conduction channel is achieved by forming a trough at minimum lithographic dimensions, forming sidewalls within the trough and etching the gate structure self-aligned with the sidewalls. The conduction channel is then epitaxially grown from the source structure in the trough such that the source, conduction channel and drain region are a unitary monocrystalline structure.

Abstract: A flywheel energy storage system for maintaining fan speed of a cooling fan on an internal combustion engine. The flywheel energy storage system allows a fan to rotate independent of the internal combustion engine and use energy stored in a flywheel for the continued rotation of the fan when a speed of the internal combustion engine falls below a predetermined speed. In this manner, the fan can provide an adequate air flow to cool the components of the internal combustion engine regardless of the speed of the internal combustion engine. To accomplish this, a fan is coupled to a clutch and a flywheel.

Abstract: A method of inserting a piston assembly into a cylinder of an engine block. The method eliminates the need for a technician to individually lift and insert the piston assemblies into the respective cylinders. The method for inserting the piston assembly into the cylinder aligns the piston assembly with the cylinder and inserts the piston assembly into the cylinder by pivoting the piston assembly from an upright position to a horizontal position, and inserting the piston assembly into the cylinder of the engine block.

Abstract: A cylinder head sealing system having a fail safe leakage control system. The fail safe leakage control system provides a leakage fluid path which allows any sealed fluid to leak externally from a cylinder head joint and not contaminate any other vital fluids. This feature permits the engine to “limp home” or continue operation until a permanent repair can be made to the engine. Thus, when a seal of the internal combustion engine fails, the fluid may flow within the fluid leakage paths externally from the cylinder head joint which prevents the fluid from flowing within the cylinder or other engine ports and contaminating the fluids therein.

Abstract: A wrist mechanism for a robotic manipulator having kinematically zero length and mutually orthogonal unlimited joints is provided. The wrist mechanism provides access to any reachable point from any arbitrary direction. The wrist mechanism includes an intermediate joint created by two parallelogram four-bar linkages operating in parallel. Each of the four bar linkages include two side bars, a fixed bar and a coupler bar. The coupler bars extend to support a last link of the wrist mechanism which holds an end effector. The kinematic lengths of the side bars are less than the kinematic lengths of the fixed and coupler bars. The side bars of the first parallelogram four-bar linkage are fixed out of phase with respect to the side bars of the second parallelogram four-bar linkage. Also, the side bars of both parallelogram four-bar linkages occupy multiple planes which, along with the kinematic lengths of all the linkage bars, allows for unlimited rotation and zero dwell time.

Abstract: A portable dryer including a housing having an integrated fold up handle. At the outlet of the housing is an adjustable vent. The portable dryer is battery powered and may be used as cosmetic air dryer. A motor drives a variable speed fan which produces both cool and hot air.