Abstract: The present invention provides an impact crushing apparatus that includes a housing, a chamber defined within the housing, a rotor assembly for receiving material and throwing the material radially outward, and a drive unit for rotating the rotor assembly. The rotor assembly comprises a plurality of shoes pivotable about a pin, the plurality of shoes having an impact surface configured to transport material received through the internal opening to the outer periphery of the chamber.

Abstract: An integrated sash lock and tilt latch assembly is mounted in a sash window having a top rail, a base, and two stiles connected together at their extremities. The integrated assembly contains a sash lock mechanism, a tilt latch mechanism, and a connector. The sash lock mechanism includes an actuator movable to adjust the assembly among a locked position, an unlocked position, and a tiltable position, and a rotor coupled to the actuator. The tilt latch mechanism includes a tilt latch housing supported by the top rail and a latch bolt slidably supported by the tilt latch housing and moveable between an extended position and a retracted position. At least a portion of the tilt latch housing has a generally circular cross-section. The connector has a first end of operably coupled to the latch bolt and a second end operably coupled to the sash lock mechanism.

Abstract: A voltage control circuit accepts an input voltage and produces a regulated output voltage. Embodiments provide improved responsiveness to variations in input voltage, load current, and ambient temperature. Exemplary embodiments include an NPN transistor connected between the input and output terminals, which is controlled by a feedback circuit. In an embodiment, the feedback circuit includes a PMOS transistor and in another embodiment the feedback circuit includes a PNP transistor.

Abstract: A repositionable loading dock pit seal panel comprising: (a) a repositionable pit seal panel including a substantially incompressible height and width sized to substantially span an entire vertical dimension and substantially span an entire widthwise dimension of a loading dock pit to substantially close off a cross-sectional area of the loading dock pit when the repositionable pit seal panel is in a barrier position, where the repositionable pit seal panel is repositionably mounted to at least one of an overhead door, a surface partially defining the loading dock pit, and a surface adjacent to the loading dock pit, where the repositionable pit seal panel is repositionable between the barrier position inhibiting horizontal use of a vertically stored dock leveler and a storage position allowing horizontal use of the vertically stored dock leveler, where the repositionable pit seal panel in the barrier position cooperates with the overhead door to close off a loading dock opening defined by a loading dock doorw

Abstract: A method and apparatus for containing fluid in ah area of a wellbore annulus, in which fluid is energized to create a fluid flow which is at least partially obstructed and is directed to form in the annulus a localized area of high pressure to contain fluid in an area of the annulus of lower pressure. In an embodiment, the method creates a pressure plug in the annulus.

Abstract: A medical procedure drape, for use during a diagnostic and therapeutic procedures performed on a patient supported by a patient cart, including a cover and a holder for the endoscope. The cover superimposes a portion of the patient and a portion of the patient cart. The endoscope holder is fixed to a boundary of the cover and extends above the level of the patient support surface on the patient cart. The endoscope holder retains and supports the endoscope during insertion and at other such times that the endoscopist may wish to set the endoscope aside to perform other tasks.

Abstract: A track system for slidably mounting a frame. The track system includes an upper track parallel to a lower track, and the tracks may be mounted to a wall. A left carriage upright and a right carriage upright are aligned orthogonally to the tracks, and the carriage uprights are slidably connected to the tracks on each end through a roller assembly, each roller assembly having a wheel that is slidably mounted to the corresponding track. The wheel is kept on the track by a stop at either end of the track. A stabilizing support structure fixes the left carriage upright parallel to the right carriage upright. Finally, the carriage uprights each have a bracket at each end, the brackets adapted to hold a frame and projector screen in front of the carriage uprights. The projector screen, frame, carriage uprights, and stabilizing support structure may then slide laterally as a whole.

Abstract: An integrated sash lock and tilt latch assembly is mounted in a sash window having a top rail, a base, and two stiles connected together at their extremities. The integrated assembly contains a sash lock mechanism, a tilt latch mechanism, and a connector. The sash lock mechanism includes an actuator movable to adjust the assembly among a locked position, an unlocked position, and a tiltable position, and a rotor coupled to the actuator. The tilt latch mechanism includes a tilt latch housing supported by the top rail and a latch bolt slidably supported by the tilt latch housing and moveable between an extended position and a retracted position. At least a portion of the tilt latch housing has a generally circular cross-section. The connector has a first end of operably coupled to the latch bolt and a second end operably coupled to the sash lock mechanism.

Abstract: A resist pattern forming method capable of obtaining a smooth resist pattern. An exemplary method may utilize a photomask including a plurality of mask cells arranged in the form of a matrix. The length of one side of each of the mask cells may be smaller than the length corresponding to the resolution limit of the optical system of the exposure device. Each mask cell may have one or both of a light transmission region and a light shielding region, and the intensity of light passing through each mask cell may be determined by the ratio of the area of the light transmission region to the area of the mask cell. The photomask may be positioned at a vertical focus position other than the optimal focus position. The resist film may be exposed with light and may then be developed to produce the resist pattern.

Abstract: A gate latch assembly comprising: (a) a biased latchbolt repositionable between a retracted position and an extended position; (b) a latchbolt catch to receive the latchbolt; and (c) a two-stage mechanism for repositioning the latchbolt from the extended position to the retracted position including a first stage mechanism having a clutch for selectively engaging the latchbolt, and a second stage mechanism for repositioning the latchbolt from the extended position to the retracted position while the clutch is engaged, where the second stage mechanism is repositionable independent of the latchbolt when the clutch is not engaged.

Abstract: A bias voltage generation circuit includes a data holding section, a correction value storage section, a computing circuit, a voltage dividing circuit and a selection circuit. The data holding section holds a variable n-bit data value that is set from an exterior, wherein n is a positive integer. The correction value storage section stores an n-bit correction value for correcting the n-bit data value. The computing circuit computes the n-bit data value and the n-bit correction value, and outputs an n-bit computing result. The voltage dividing circuit divides a reference voltage into 2n voltages, and outputs 2n levels of divided voltages. The selection circuit selects one level of a divided voltage from the 2n levels of divided voltages on the basis of the n-bit computing result and outputs the selected divided voltage as a bias voltage, the output bias voltage having a variation over 2n levels.

Abstract: The present invention includes methods and apparatuses for producing hydrogen peroxide using microchannel technology. An exemplary process for producing hydrogen peroxide comprises flowing feed streams into intimate fluid communication with one another within a process microchannel to form a reactant mixture stream comprising a hydrogen source and an oxygen source such as, without limitation, hydrogen gas and oxygen gas. Thereafter, a catalyst is contacted by the reactant mixture and is operative to convert a majority of the reactant mixture to hydrogen peroxide that is withdrawn via an egressing product stream. During the hydrogen peroxide chemical reaction, exothermic energy is generated and absorbed by the fluid within the microchannel as well as the microchannel itself.