Abstract: A closed leveling system for a vehicle includes a suspension system having a number of corners, and each corner includes at least one strut to be coupled to at least one wheel of the vehicle. The closed leveling system also includes a sensor and a master controller in communication with the sensor. The master controller includes a memory device including computer-readable instructions, and a processor in communication with the memory device. The leveling system also includes a power module assembly including a reservoir containing compressible liquid, a pump configured to withdraw the compressible liquid from the reservoir, a dump valve configured to transfer the compressible liquid into the reservoir, and isolation valves. Each isolation valve is associated with at least one corner. The leveling system further includes secondary volumes in selective fluid communication with the reservoir. Each secondary volume is associated with one isolation valve and at least one corner.

Abstract: A resilient expandable pressure vessel configured to function like a spring. The resilient expandable pressure vessel includes a body portion, a cavity defined within the body portion, and at least one port in communication with the cavity defined in the body portion. The at least one port is configured to receive a fluid into the cavity and discharge the fluid from the cavity. The resilient expandable pressure vessel has a predetermined expansibility across a range of operating pressures of the fluid in the cavity. The range is at least 200 psi.

Abstract: A resilient expandable pressure vessel configured to function like a spring. The resilient expandable pressure vessel includes a body portion, a cavity defined within the body portion, and at least one port in communication with the cavity defined in the body portion. The at least one port is configured to receive a fluid into the cavity and discharge the fluid from the cavity. The resilient expandable pressure vessel has a predetermined expansibility across a range of operating pressures of the fluid in the cavity. The range is at least 200 psi.

Abstract: A resilient expandable pressure vessel configured to function like a spring. The resilient expandable pressure vessel includes a body portion, a cavity defined within the body portion, and at least one port in communication with the cavity defined in the body portion. The at least one port is configured to receive a fluid into the cavity and discharge the fluid from the cavity. The resilient expandable pressure vessel has a predetermined expansibility across a range of operating pressures of the fluid in the cavity. The range is at least 200 psi.

Abstract: A <110> domain engineered relaxor-PT single crystals having a dielectric loss of about 0.2%, a high electromechanical coupling factor greater than about 85%, and high mechanical quality factor greater than about 500 is disclosed. In one embodiment, the relaxor-PT material has the general formula, Pb(B1B2)O3—Pb(B3)O3, where B1 may be one ion or combination of Mg2+, Zn2+, Ni2+, Sc3+, In3+, Yb3+, B2 may be one ion or combination of Nb5+, Ta5+, W6+, and B3 may be Ti4+ or combination of Ti4+ with Zr4+ and/or Hf4+.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to seamlessly generate spring and/or damping forces in the suspension system in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid is located in a second chamber. The second volume is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage, the valve selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emitting a control signal to control the valve.

Abstract: A <110> domain engineered relaxor-PT single crystals having a dielectric loss of about 0.2%, a high electromechanical coupling factor greater than about 85%, and high mechanical quality factor greater than about 500 is disclosed. In one embodiment, the relaxor-PT material has the general formula, Pb(B1B2)O3—Pb(B3)O3, where B1 may be one ion or combination of Mg2+, Zn2+, Ni2+, Sc3+, In3+, Yb3+, B2 may be one ion or combination of Nb5+, Ta5+, W6+, and B3 may be Ti4+ or combination of Ti4+ with Zr4+ and/or Hf4+.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to seamlessly generate spring and/or damping forces in the suspension system in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid is located in a second chamber. The second volume is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage, the valve selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emitting a control signal to control the valve.

Abstract: An electroacoustic transducer having a tail mass, a head mass and at least two parallelepiped shaped piezoelectric material elements disposed between and attached to the tail mass and the head mass is provided. The tail mass has a body extending between a first end and a second end, the body having a cavity with a cavity wall and the cavity extending from the first end towards the second end. The head mass has a head and an elongated shaft attached to and extending from the head, the shaft having a shaft axis and being located at least partially within the cavity of the tail mass. The at least two parallelepiped shaped piezoelectric material elements are made from a piezoelectric material having a non-zero d3y shear piezoelectric coefficient where the d3y coefficient can be d34, d35 or d36.

Abstract: An electroacoustic transducer having a tail mass, a head mass and at least two parallelepiped shaped piezoelectric material elements disposed between and attached to the tail mass and the head mass is provided. The tail mass has a body extending between a first end and a second end, the body having a cavity with a cavity wall and the cavity extending from the first end towards the second end. The head mass has a head and an elongated shaft attached to and extending from the head, the shaft having a shaft axis and being located at least partially within the cavity of the tail mass. The at least two parallelepiped shaped piezoelectric material elements are made from a piezoelectric material having a non-zero d3y shear piezoelectric coefficient where the d3y coefficient can be d34, d35 or d36.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to seamlessly generate spring and/or damping forces in the suspension system in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid is located in a second chamber. The second volume is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage, the valve selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emitting a control signal to control the valve.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to seamlessly generate spring and/or damping forces in the suspension system in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid is located in a second chamber. The second volume is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage, the valve selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emitting a control signal to control the valve.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to generate spring forces in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid in a second chamber is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage. The valve is selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emits a control signal to control the valve. The control signal is determined by a combination of at least a first component to alter the stiffness of the liquid spring and a second component to alter the damping of the liquid spring.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to generate spring forces in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid in a second chamber is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage. The valve is selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emits a control signal to control the valve. The control signal is determined by a combination of at least a first component to alter the stiffness of the liquid spring and a second component to alter the damping of the liquid spring.

Abstract: A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The liquid spring uses a compressible liquid to seamlessly generate spring and/or damping forces in the suspension system in response to relative displacement between the first structural member and the second structural member. A second volume of compressible liquid is located in a second chamber. The second volume is removably connected to the liquid spring by a fluid passage. A valve is coupled to the fluid passage, the valve selectively operable to place the second volume in communication with the liquid spring. A controller is electrically coupled to the valve. The controller emitting a control signal to control the valve.

Abstract: Top and bottom frame supports are spaced apart and secured together by central end posts. Downwardly opening grooves along the arcuate edges of the top frame support align with upwardly opening grooves along the arcuate edges of the bottom frame support to form mating tracks into which credit cards are inserted. The credit cards bend into the shape of the grooves and overlap with two cards on each side to form side enclosure surfaces which enclose a storage space between the cards on each side and the top and bottom frame supports for storing money and other valuables. A holder with a key, pen, knife, or other device may be inserted in a notch in the top frame support. Alternately the framed supports may be hinged together at one end to form a hinged clamshell-type container.

Abstract: A vibration control system utilizes a liquid spring filled with a compressible liquid. In its most general embodiment, the vibration control system minimizes the transmission of vibration between a first mass and a second mass, i.e. vehicle frame/vehicle cabin, structure/ground, machinery/platform. The liquid spring can be either a passive or an active system. An active system utilizes a second volume of compressible fluid. A passive system only uses a single volume of fluid. Further, the liquid spring can provide either spring force or both spring and damping forces. Alternatively, a single volume liquid spring can be utilized in conjunction with a conventional damper.

Abstract: A transfer press having a plurality of generally linearly spaced die stations, a transfer mechanism for successively advancing blanks or partially stamped parts from one station to the next each cycle of the press and quick change upper and lower die plates mounted in fixtures attached to the press slide and bed or bolster, respectively. Each of the die sets includes a plurality of die fixtures having extendible and retractable clamps which open to permit a die plate to be slid therein and approximately located by means of locating ears on the die plate which contact the forward surface of the respective fixture or by contacting locating blocks at the rear of the fixture. When the clamps are retracted, the die plates are pulled downwardly and are accurately located by means of a plurality of locating pins which engage corresponding apertures in the plates. The clamps lock the plates in their final operative positions for the successive stamping operations.

Abstract: Aqueous pigment concentrates are produced by a two-step milling process. The process comprisesa. pumping a crude with from about 12% to about 48% by weight of surfactant, based on pigment, and an amount of water sufficient to reduce the crude concentration to 10 to 50% by weight, based on the total mixture, andb. continuously pumping the blend of (a) through at least two shot mills in series containing between 50 and 90% by volume of a grinding media that has a size in the range of 0.1 to 1.5 mm diameter and then grinding until the particle size has been reduced to where the pigment dispersion has suitable tinctorial strength for use in inks and coatings.