Abstract: An electro-magnetic landing gear up-lock includes at least one electro-magnet mounted to the aircraft structure positioned adjacent the landing gear trunion. When the at least one electro-magnet is energized, magnetically responsive material in the landing gear positioned adjacent to the electro-magnet is attracted to the electro-magnet with sufficient force to hold the landing gear in a retracted. De-energizing the electro-magnet causes the electro-magnet to release the landing gear to allow the landing gear to extend.

Abstract: A system and method for moving livestock includes a sequence of interconnected semicircular enclosures in which the periphery of each enclosure extends generally to the center of the next enclosure. At the center of each enclosure is a turret unit including a support frame, a turret frame and a panel. The panel extends generally to the edge of the enclosure. The turret frame and panel are capable of two modes of movement: a sweeping mode and a shuttle mode. In the sweeping mode, the turret frame rotates the extended panel as the panel sweeps around the semicircular enclosure. In the shuttle mode the panel is translated across the enclosure from one side of the turret frame to the other side of the turret frame. Panels can thus be alternately swept around their respective enclosures and shuttled across their respective enclosures to present translating enclosed areas for livestock as the livestock progress through a series of interconnected semicircular enclosures.

Abstract: An emergency tool for escaping from a motor vehicle has a generally symmetrical body including a handle portion and a cutting portion. The handle portion carries two opposite window breaking elements adapted for breaking and shattering tempered motor vehicle window glass. The cutting portion includes opposite cutters having fingers which define slots for receiving belt webbing material. The cutting slots lead to sharp blades fixed at the closed end of each slot which are adapted for cutting the belt webbing material of motor vehicle seat belts. The body optionally includes at least one compartment for carrying an emergency item such as a fire starting flare or an emergency locating transmitter and may also incorporate optional LED lights to provide illumination for emergency operations.

Abstract: A drug disposal and verification device includes a first chamber and a second chamber. The first chamber has an injection port for receiving wasted drug solution and a disposal volume. A positive displacement flow measuring device positioned between the injection port and the disposal volume is used to measure the volume of wasted drug solution injected into the device. The positive displacement flow measuring device is also adapted to divert a small portion of the wasted drug solution to the second chamber. The second chamber holds a breakable test reagent ampule for quantitative testing of the wasted drug solution. The disposal volume of the first chamber may include at least one test strip for qualitative testing of the wasted drug solution.

Abstract: A system and method for moving livestock includes a sequence of interconnected enclosures in which the periphery of each enclosure extends generally to the center of the next enclosure. At the center of each enclosure is a turret unit including a support frame, a turret frame and a panel. The panel extends generally to the edge of the enclosure. The turret frame and panel are capable of two modes of movement: a sweeping mode and a shuttle mode. In the sweeping mode, the turret frame rotates the extended panel as the panel sweeps around the semicircular enclosure. In the shuttle mode the panel is translated across the enclosure from one side of the turret frame to the other side of the turret frame. Panels can thus be alternately swept around their respective enclosures and shuttled across their respective enclosures to present translating enclosed areas for livestock as the livestock progress through a series of interconnected semicircular enclosures.

Abstract: An exchange blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

Abstract: A lawn mower drive arrangement delivers power to a mower deck of a lawn mower vehicle. The drive arrangement includes a prime mover and a drive sheave, at least one mower deck sheave for powering at least one cutting blade and an endless engaging the drive sheave and at least one mower deck sheave. The drive sheave is oriented such that its axis of rotation is generally transverse. Guide pulleys engage the tension side and the slack side of the endless belt between the drive sheave and at least one mower deck sheave. The guide pulleys are positioned such that the endless belt twists by an acute angle substantially less than 60 degrees between the drive sheave and the guide pulleys.

Abstract: The device for carrying articles includes a first side portion, a second side portion and a holder unit. The first and second side portions include a means for holding the first and second side portions together. Each of the first and second side portions include an inside face and an outside face. The inside faces of the side portions are at least partially covered with either the hook or loop fabric of a hook and loop fabric fastening system. The holder unit is adapted for fitting between the side portions. At least portions of the sides of the holder unit are covered with corresponding hook or loop fabric appropriate for engaging the hook or loop fabric of the side portions. At least one of the outside faces of the side portions includes provisions for securing the carrying device to a military garment.

Abstract: An adjustable livestock alleyway includes an alleyway frame, a center frame and first and second panels which define two side by side alleyways within the alleyway frame. The first and second panels are pivotably mounted to the center frame to pivot between a first open position in which the panels are pivoted toward the center frame and a second constricted position in which the panel are pivoted away from the center frame. A linkage connecting between the center frame and the first and second panels is powered by an actuator in order to pivot the first and second panels between the first and second positions such that the widths of both side by side alleyways may be changed to a desired width.

Abstract: A bipod for supporting the forward portion of a firearm includes a clamp portion, a pivot body and a pair of leg assemblies. The clamp portion is adapted for clamping to a firearm and is pivotably mounted to the pivot body for pivoting about a vertical axis and a longitudinal axis. The pivot body includes a pair of leg mounting surfaces. A pair of leg assemblies are pivotably mounted to the mounting surfaces of the pivot block so that each leg assembly may be pivoted about an axis that is generally normal to the mounting surface and such that each leg assembly can be adjustably positioned in one of at least two positions.

Abstract: A civil defense air powered siren includes an air powered tone generator, a compressed air tank, an air compressor, an air line with a control valve connecting between the compressed air tank and the tone generator. A pressure switch communicates with the compressor and the compressed air tank. The pressure switch activates the compressor to charge the compressed air tank when air pressure in the tank falls below a pre-selected limit. The control valve is remotely controlled preferably by a radio signal to cause the control valve to open the air line and supply the tone generator with air in order to cause a civil defense warning tone to be generated when it is appropriate to do so.

Abstract: The present invention is a system for joining tubes in a structure. The system includes hollow tubes and pressure assemblies. The tubes have tool holes spaced from the ends which are to be joined together. The pressure assemblies include members which can be spread apart by threaded inserts threaded into one of the members. The threaded inserts are spaced to correspond to the spacing between the tool holes as occurs when the tube ends are placed together. Accordingly, a pressure assembly can be inserted into adjacent tube ends and then expanded with sufficient expanding force for joining the tube ends in a rigid, strong joint. The system of the present invention may be used to make highly versatile and portable structures such as soccer goals, American football uprights and basketball goals.

Abstract: An improved squeeze chute includes opposing neck bar assemblies. Each neck bar assembly is mounted to a head door of a cattle chute of the type where the head doors pivot in unison between open and closed positions. Each neck bar assembly may be independently actuated to move the neck bar from a first position close to the head door and separated from the center line of the squeeze chute to a second position spaced away from the squeeze chute and closer to the center line of the squeeze chute.

Abstract: A drive wheel steering system for a lawnmower has a handle bar assembly that is pivotal about a vertical axis to provide directional control of the mower and rotatable about a horizontal axis to provide speed control of the mower. A control bar is operable to set a desired forward speed of the mower via engagement of a cam and the linkage assembly providing directional and speed control for the mower.

Abstract: A lawn mower drive arrangement delivers power to a mower deck of a lawn mower vehicle. The drive arrangement includes a prime mover and a drive sheave, at least one mower deck sheave for powering at least one cutting blade and an endless engaging the drive sheave and at least one mower deck sheave. The drive sheave is oriented such that its axis of rotation is generally transverse. Guide pulleys engage the tension side and the slack side of the endless belt between the drive sheave and at least one mower deck sheave. The guide pulleys are positioned such that the endless belt twists by an acute angle substantially less than 60 degrees between the drive sheave and the guide pulleys.

Abstract: An article support device includes a cradle and a support shaft. The cradle includes a cradle portion and a slip yoke portion. The cradle portion presents an open channel for receiving and supporting an article such as a fire arm, a camera or telescope. The slip yoke portion is enclosed by a slip yoke wall. The slip yoke wall perforated by a strap receiving slot for receiving into the slip yoke an article carrying strap. The support shaft is fixed to the cradle and is for supporting the cradle in an elevated position above the ground.

Abstract: The present invention is a process for removing hydrogen sulfide gas from natural gas by contacting a flow of sour natural gas containing hydrogen sulfide gas with a scavenging agent including a group IIA metal hydroxide such as calcium hydroxide for a sufficient amount of time to form calcium sulfide and water to yield natural gas that is substantially depleted of hydrogen sulfide gas. Sour natural gas may be percolated through a column containing a scavenging agent such as calcium hydroxide suspended as a fine particulate in water or a bed of dry calcium hydroxide granules. The scavenging agent may be periodically or continuously replenished with fresh scavenging agent rich in the selected group IIA metal hydroxide.

Abstract: A bipod for supporting the forward portion of a firearm includes a clamp portion, a pivot body and a pair of leg assemblies. The clamp portion is adapted for clamping to a firearm and is pivotably mounted to the pivot body for pivoting about a vertical axis and a longitudinal axis. The pivot body includes a pair of leg mounting surfaces. A pair of leg assemblies are pivotably mounted to the mounting surfaces of the pivot body so that each leg assembly may be pivoted about an axis that is generally normal to the mounting surface and such that each leg assembly can be adjustably positioned in one of at least two positions.

Abstract: A process arrangement for distilling fuel grade ethanol include a distillation portion which distills beer to produce thin stillage and hot ethanol vapor. In an evaporation portion, a set of first effect evaporators which are heated either by plant steam or hot ethanol vapor, concentrate thin stillage into mid stillage while producing first effect steam. The first effect steam from the first effect evaporators provides heat to a set of second effect evaporators which concentrate the mid stillage into a syrup for further drying. The second effect evaporators produce second effect steam which is used to heat the distillation portion of the process arrangement. The multiple evaporators of the first and second effects of the evaporation portion can be selectively taken off-line for maintenance while the evaporation portion and the remainder of the process arrangement continue to operate at full capacity.