Abstract: An apparatus for limiting the travel of a slave piston in a slave piston cylinder in a compression release engine retarder is disclosed. The apparatus is connected to a hydraulic circuit and comprises an internal passageway in the slave piston head. The internal passageway comprises a vertical bore, a horizontal bore, and an annular channel which together provide a path for bleeding off the pressure on the top of the slave piston when the annular channel and an aperture in the slave piston cylinder are aligned. The bleeding of the hydraulic pressure on top of the slave piston clips the motion of the slave piston at a desired stroke. The apparatus includes a locking adjustable foot on the slave piston stem which provides a means to adjust the lash.

Abstract: The present invention is directed to an organic light emitting device having a substrate, and at least one conductor formed on the substrate. A first insulator layer is formed on the at least one conductor and the substrate. The insulator layer includes at least one pixel opening formed therein defining a pixel area. A second insulator layer is formed on the first insulator layer. The organic light emitting device also include an OLED layer formed on the at least one conductor in the pixel area. The organic light emitting device may further include a sealing structure formed over the OLED layer. The sealing structure includes at least one material formed over the OLED layer. The first insulator layer and the sealing structure form a protective barrier around the OLED layer. The first insulator layer includes a uniformly sloping surface surrounding the pixel area. The OLED layer preferably extends over the uniformly sloping surface.

Abstract: A pulse detonation power generation apparatus is provided. This apparatus is provided with a detonation chamber connected to fuel and air sources which detonate to produce energy which may be converted to electrical energy.

Abstract: Isolation structures and means for isolating the electron injectors in an organic light emitting device are disclosed. The isolation structures may reduce the likelihood of electrical shorts or cross-talks between adjacent columns of electron injector material. The isolation structures may comprise multiple layers of distinct material, including a layer of organic insulation material, such as photoresist or other hydrophobic organic material. The insulation material may be spin or extrusion coated onto the device. The insulation material may be sandwiched between inorganic oxide layers. The insulation material may be selected such that it is capable of being preferentially etched relative to the oxide layers by dry etching methods such as oxygen plasma. Alternatively, the insulation material may be made of material that does not have a very strong adhesion to an underlying oxide layer, so that the insulation material and any conductive material formed on top of it may be removed using a tape lift-off process.

Abstract: The present invention relates to a co-axial master piston for use in providing hydraulic fluid to effectuate a compression release braking function and hydraulic fluid to effectuate an exhaust gas recirculation function. In particular, the coaxial master piston includes an inner master piston driven by an exhaust cam to provide the hydraulic force to cause the compression release braking function. An outer piston, driven by the same exhaust cam, provides the hydraulic force to cause the EGR function during positive power operation of the engine and during compression release braking when required.

Abstract: A mask structure may be formed on a field emitter substrate for use in forming emitter wells on and in the substrate. The mask structure may be formed from a multilayered structure on the surface of the substrate using a laser lithography process. From the substrate up, the multilayered structure may include an antireflective coating, a photoresistive layer, an optional etch resistant layer between the antireflective coating and the photoresistive layer, and an optional second antireflective coating between the optional etch resistant layer and the photoresistive layer. The pattern of the mask structure may be transferred to the multilayer structure by exposing the photoresistive layer to laser light. The antireflective coatings may reduce the amount of stray laser light that reflects off the substrate and onto the back of the photoresistive layer.

Abstract: The present invention is a current driver for an active matrix organic light emitting device display. As embodied herein, the driver relies upon a single transistor, driven in a saturation regime to provide a current source for an OLED. This results in a pulse drive. The driver of the present invention is compatible with high speed integrated drivers and can be fabricated on the same substrate as the OLED. A technique for driving an OLED is disclosed that will produce a good quality gray scale image.

Abstract: The present invention is directed to an electrode structure for an organic light-emitting device display. The electrode structure includes a transparent electrode and a high conductivity rib. The structure provides top side light output and a low line resistance, and enables a high resolution display. The structure permits a display to be built on top of a silicon driver chip for active matrix addressing.

Abstract: A method and apparatus of carrying out exhaust gas recirculation and compression release retarding is disclosed for use during both positive power and retarding operation of an overhead cam internal combustion engine. Energy is derived from an engine component and stored as potential energy. The stored energy is selectively applied to a valve actuator to carry out exhaust gas recirculation in an engine cylinder. The energy derived from the engine may be stored in the form of a compressed hydraulic fluid and selectively applied to the valve actuator with an electronically controlled trigger valve. The valve actuator may be a slave piston having an inner core and an outer sleeve capable of opening the valve of the cylinder in response to independent exhaust gas recirculation and compression release hydraulic systems.

Abstract: Field emission devices may include emitter wells formed in a body of dielectric material. A gate conductor may be provided along the upper surface of the dielectric material. A gate hole may be provided in the gate conductor directly above each of the emitter wells. A method for forming the gate holes and emitter wells is disclosed. The method includes the steps of providing a first gate conductor layer on a dielectric layer. A pattern of second gate conductor material may be formed over the first gate conductor layer, said pattern defining gate holes in the second gate conductor material. The gate holes may then be completed and emitter wells formed by etching through the first gate conductor layer and into the dielectric layer using an etch that selectively etches the first gate conductor layer and the dielectric layer, and does not etch substantially the second gate conductor material.

Abstract: An apparatus and method for effectuating multi-cycle engine braking is disclosed. The present invention controls the operation of the engine valves to permit more than one compression release event during a single engine operating cycle. The apparatus includes an assembly for operating at least one exhaust valve of an engine cylinder during a positive power operation. The apparatus further includes an assembly for operating at least one intake valve of the engine cylinder. The apparatus further including an assembly for operating the at least one exhaust valve during an engine braking operation.

Abstract: An internal combustion engine may include a hydraulic linkage used to transfer motion from a valve train element, such as a cam, to an engine valve. Method and apparatus for selectively limiting the motion transferred by the hydraulic linkage from the valve train element to the engine valve are disclosed. The hydraulic linkage may comprise means for resetting or clipping the displacement of the engine valves into the engine cylinder following a compression release event. The hydraulic linkage may also limit the displacement of the engine valves into the engine cylinder for main exhaust and/or other valve events, as well as limit the overlap between a main exhaust valve event and an intake valve event.

Abstract: A fastener for use during a surgical procedure for securing a surgical component to a vessel wall is disclosed having a flexible fastening assembly for securing the surgical component to the vessel wall under a compressive force. The fastening assembly has a first portion located on one side of the surgical component and the vessel wall, a second portion located on another side of the surgical component and the vessel wall, and an intermediate portion connecting to the first portion and the second portion, the intermediate portion extending through the vessel wall and the surgical component. The first portion, second portion and the intermediate portion act together to apply a compressive force to the surgical component and the vessel wall to secure the surgical component to the vessel wall. The fastening assembly may further include at least one supplemental fastening assembly to secure the surgical component to the vessel wall.

Abstract: The present invention is directed to a locking assembly for use in a rocker arm assembly for an engine brake assembly. The rocker arm assembly includes a rocker arm pivotally mounted on a shaft. The rocker arm has a first end and a second end, wherein the first end includes a cam follower and the second end includes an actuator assembly for operating at least one valve during a braking operation. The improved rocker arm includes a locking assembly for releasably securing the rocker arm to the shaft to prevent pivoting of the rocker arm during a positive power operation. The locking assembly includes a releasable latching assembly located on one of the rocker arm and the shaft. The locking assembly also includes a latch receiving recess located on another of the rocker arm and the shaft. The releasable latching assembly engages the latch receiving recess during a positive power operation.

Abstract: A surgical stapler and method for implanting an aortic graft with staples to treat an aortic aneurysm. A prosthetic graft is implanted within the aorta to functionally replace the segment of the aorta damaged by an aneurysm. The stapler would typically be used where the graft is to be attached to an area of the aorta which lacks sufficient healthy tissue to ensure secure attachment by conventional fasteners such as when an aneurysm develops near the iliac arteries. The graft is implanted with staples fired from the surgical stapler. The stapler consists of a stapling device attached to the end of a modified catheter by a hinge. In order to allow greater flexibility in positioning the staples, a mechanism may be used to move the stapling device into the desired angle or position to implant the staple. The stapler may be positioned and fired by remote control.

Abstract: Electronic controls for compression release engine retarders of internal combustion engines which provide electronic signals to control hydraulic valves assembled in the hydraulic actuators of the retarders, to open engine exhaust valves to provide compression release events. The electronic controls may produce signals for both opening and/or closing the controlled valves. The electronic controls may monitor various engine operating conditions and/or parameters with one or more sensors distributed in the engine and vehicle in which the engine is installed. The timing of valve actuation, particularly that for compression release events, can be automatically modified responsive to the level of engine operating conditions and parameters. Various operating routines for the electronic controls are also disclosed.

Abstract: A high aspect ratio gated emitter structure and a method of making the structure are disclosed. Emitters may be provided in a densely packed array on a support. Two distinct layers of insulator material may surround the emitters. The lower layer of insulator material may be a non-conformally applied spray-on or spin-on insulator. The non-conformal insulator material may pool at the base regions of the emitters so that the tip regions of the emitters extend out of the lower layer of insulator material. The upper layer of insulator material is applied to the lower layer using a conformal process so that the tip regions of the emitters are covered by the upper layer of insulator material. Gate material is applied to the upper layer of insulator material. Holes are provided in the gate material over the tip regions and wells are provided in the upper layer of insulator material surrounding the tip regions.

Abstract: A large area energy beam intensity profiler and method of profiling are disclosed. The profiler includes intensity detectors which generate electrical signals corresponding to the intensity of the beam. The output of the detectors is processed by a computer and displayed on a monitor. The invention provides for adjustment of the beam in response to a nonuniform intensity profile, or an indication that the beam is misaligned.