91results about How to "Reduced overall height dimension" patented technology

The present invention is a replacement mitral valve suitable for catheter-based deployment. The replacement mitral valve has structure and dimensions that are uniquely suited to engage the annulus surrounding the native mitral valve and to restore normal function to a diseased valve. The invention describes the structures and functions of a replacement mitral valve and methods that are adapted for minimally invasive, catheter-based deployment of the valve.

A magnetic position tracking system for performing a medical procedure on a patient who is positioned on an upper surface of a table includes a location pad, which is positioned on the upper surface of the table beneath the patient. The location pad includes one or more field generators, which are operative to generate respective magnetic fields and are arranged so that a thickness dimension of the location pad is no greater than 3 centimeters. A position sensor is fixed to an invasive medical device for insertion into a body of the patient, and is arranged to sense the magnetic fields so as to measure a position of the medical device in the body.

A support assembly capable of being raised and lowered on a mast and configured in a compact, volumetrically efficient conformation lending architectural significance to the appearance of the support assembly when used to mount a plurality of luminaires or other apparatus intended for use in a location above a surface, such as the surface of the earth, the invention permits remote latching and unlatching of the support assembly through use of an improved latching mechanism having dimensions permitting housing of the latching mechanism within an enclosure of a reduced height, thereby lending an esthetically pleasing appearance to a mast-mounted support arrangement relative to prior art assemblies intended to perform similar functions.

A plate material packing box capable of preventing dirt from entering thereinto, easily storable in a storage room with a low ceiling by reducing the height dimension during transportation, and capable of transporting plate materials efficiently and constantly; a plate material transporting method using such a plate material packing box; and a plate material loading or unloading method. The packing box comprises a pedestal 3 having an upper lining, a plate material storage box 14 put on the pedestal 3, and an upper cover 2 enclosing the plate material storage box 14 on the pedestal 3 and being detachable from the pedestal 3, wherein the plate material storage box 14 is an upwardly open support having a bottom plate 15 to have a plurality of plate materials G put thereon in a substantially horizontally stacked state, and side plate 16a to 16d along four sides of its periphery, the upper cover 2 is a downwardly open box having a top plate 6 covering the upper surface of the plate material storage box 14 and side frames 5 along four sides of its periphery; a vibration damper 17 is interposed between the pedestal 3 and the bottom plate 5; and a cushion material 20 is installed between the top plate 6 and the plate materials G put on the bottom plate 15.

For controlling a position indicator, e.g. a cursor, on a visual display, e.g. the monitor screen associated with a personal computer or a laptop computer screen, a position indicator controlling device (1) comprises an indicator position controller (6) in the form of a continuous membrane of elastomeric material (8) stretched, in wrinkle-free manner, around a solid form-keeping core (7) held captive in a housing (2) so that by applying finger pressure in a generally horizontal direction to an uppermost exposed, part-spheroidal, portion of the membrane, the membrane can slide on the core to produce a corresponding output signal from one or more motion detectors (11, 12). The indicator position controller gives the appearance to a user of a spherical ball device (such as is commonly used in a laptop computer), but the special shape of the form-keeping core is such as to reduce the overall height requirement and leads to a heightwise compact construction for the position indicator controlling device (1'). According to two modifications (FIGS. 5 and 6), the indicator position controller (6) is realized by a normally spheroidal thick-walled elastomeric ball (8'), or by a solid elastomeric ball (8'') held in a deformed state by the housing (2). The position indicator controlling device (1) can be designed for use as a ball-type device for a laptop computer or as a mouse for a personal computer.

A key switch used for a keyboard incorporated as an input device in electronic equipment. The key switch includes a support plate; a key top arranged above the support plate; a pair of link members interlocked to each other to support the key top above the support plate and direct the key top in a vertical direction; and a switch mechanism capable of opening and closing a contact section of an electric circuit in accordance with a vertical movement of the key top. The switch mechanism includes a membrane switch sheet carrying the contact section at a position corresponding to the key top and placed on the support plate. Each of the link members includes a sliding part slidably engaged with the support plate. The membrane switch sheet is provided with a through-hole in a region where the sliding part of each link member is engaged with the support plate, the sliding part of the link member being slidably placed on the support plate through the through-hole in the membrane switch sheet.

The invention pertains to an engine mount onto an aircraft structure comprising at least one connection means between a first and a second element such as an engine case and said structure, characterized by the fact that said connection means comprises an eccentric member housed in a bore of the first element, being rotational about a first axis, the eccentric member comprising a trunnion attached to the second element and of axis off-centred with respect to the first axis of rotation, the eccentric member being rotational about said off-centred axis.The solution of the invention has the advantage of allowing a compact assembly.

A lead wire led-out type crystal oscillator of constant temperature type for high stability is disclosed, which includes a heat supply body that supplies heat to a crystal resonator from which a plurality of lead wires are led out, to maintain the temperature constant. The heat supply body includes a heat conducting plate which has through-holes for the lead wires and is mounted on the circuit board, and which faces, and is directly thermally joined to, the crystal resonator and a chip resistor for heating which is mounted on the circuit board adjacent to the heat conducting plate, and is thermally joined to the heat conducting plate.

A loudspeaker diaphragm having a small overall height dimension, in which a dome portion has a sufficient rigidity and which is capable of realizing a stable loudspeaker operation, wherein the loudspeaker diaphragm can realize a desirable sound reproduction without noise, or the like, with a frequency response that is flat over a wide range. In the loudspeaker diaphragm of the present invention, the dome portion includes a concave dome portion formed at a center thereof, a convex dome portion along an outer periphery of the concave dome portion, a plurality of depressed ribs each extending in a radial direction across a boundary between the concave dome portion and the convex dome portion, a voice coil attachment portion along an outer periphery of the convex dome portion, and a plurality of protruding ribs extending in the radial direction across a boundary between the convex dome portion and the voice coil attachment portion, wherein each protruding rib is spaced apart in a circumferential direction from two adjacent depressed ribs.

The present invention is one where, in a lead wire led-out type crystal oscillator of constant temperature type for high stability, comprising: a heat supply body that supplies heat to a crystal resonator from which a plurality of lead wires are led out, to maintain the temperature constant; an oscillating element that constitutes an oscillating circuit together with the crystal resonator; a temperature control element that constitutes a temperature control circuit for controlling the temperature of the crystal resonator; and a circuit board for mounting the heat supply body, the oscillating element, and the temperature control element, and through which lead wires of the crystal resonator are passed through for mounting, the heat supply body comprises: a heat conducting plate which has through-holes for the lead wires and is mounted on the circuit board, and which faces, and is directly thermally joined to, the crystal resonator; and a chip resistor for heating which is mounted on the circuit board adjacent to the heat conducting plate, and is thermally joined to the heat conducting plate. As a result, a lead wire led-out type crystal oscillator of constant temperature type for high stability wherein the structure is simplified, and in particular the height dimension is reduced can be provided. Moreover, the present invention is a constant temperature type surface mounting type crystal oscillator which uses a crystal resonator for surface mounting which is mounted on the circuit board together with the oscillating elements and temperature control elements, and is constructed such that the crystal resonator is arranged on a ceramic substrate, and at least a chip resistor for heat generation and a highly temperature-dependent highly heat sensitive element are arranged on the ceramic substrate. The structure is such that the crystal resonator is arranged on one principal plane of the ceramic substrate, and the chip resistor and the temperature sensitive element are arranged on the other principal plane of the ceramic substrate, and the other principal plane of the ceramic substrate is positioned facing one principal plane of the circuit board, and heat conductive resin is interposed between the chip resistor and the circuit board. A surface mounted crystal oscillator of constant temperature type in which miniaturization is advanced, and the structure is simplified, is provided.

A key switch used for a keyboard incorporated as an input device in electronic equipment. The key switch includes a support plate; a key top arranged above the support plate; a pair of link members interlocked to each other to support the key top above the support plate and direct the key top in a vertical direction; and a switch mechanism capable of opening and closing a contact section of an electric circuit in accordance with a vertical movement of the key top. The switch mechanism includes a membrane switch sheet carrying the contact section at a position corresponding to the key top and placed on the support plate. Each of the link members includes a sliding part slidably engaged with the support plate. The membrane switch sheet is provided with a through-hole in a region where the sliding part of each link member is engaged with the support plate, the sliding part of the link member being slidably placed on the support plate through the through-hole in the membrane switch sheet.

A display apparatus is described comprising a plurality of electrofluidic chromatophore (EFC) pixel cells. Each pixel cell comprises a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties. The fluid holder comprises a fluid reservoir with a geometry having a small visible area onto the polar fluid, and a channel with a geometry having a large visible area onto the polar fluid. The channel is connected to the reservoir to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir. At least part of a surface of the channel comprises a wetting property responsive to a supply voltage. The pixel cell comprises at least one further pixel cell terminal that is coupled to a further electrode to supply a direct voltage to the pixel cell.

A display apparatus is described comprising a plurality of electrofluidic chromatophore (EFC) pixel cells. Each pixel cell comprises a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties. The fluid holder comprises a fluid reservoir with a geometry having a small visible area onto the polar fluid, and a channel with a geometry having a large visible area onto the polar fluid. The channel is connected to the reservoir to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir. At least part of a surface of the channel comprises a wetting property responsive to a supply voltage. The pixel cell comprises at least one further pixel cell terminal that is coupled to a further electrode to supply a direct voltage to the pixel cell.

An oven-controlled crystal oscillator includes a circuit board, a crystal unit surface-mounted on the circuit board, and a temperature control circuit that maintains operating temperature of the crystal unit constant. The temperature control circuit includes a heating resistor, a power transistor that supplies power to a heating resistor, and a temperature sensitive resistor that detects temperature of the crystal unit. The heating resistor is formed, as a film resistor, on a surface of the circuit board in an area thereof in which the crystal unit is located. The temperature sensitive resistor is provided on the circuit board as a film resistor.

A patch antenna apparatus includes an antenna element and a metal frame, which are disposed on a ground plane. The antenna element has a dielectric substrate, which has a patch electrode on the top surface and has a ground electrode on the bottom surface. The patch electrode is connected to current-feed pins. The metal frame is positioned so as to surround the peripheral surface of the dielectric substrate. The height dimension of the metal frame is set to be slightly larger than the thickness dimension of the dielectric substrate. Electromagnetic radiation radiated from the antenna element is reflected upon reaching the metal frame. Thus, the metal frame causes interference with the electromagnetic radiation such that the traveling direction of the electromagnetic radiation is redirected closer to the lateral direction.

The invention relates to an oven controlled crystal oscillator for surface mounting with reduced height (low profile). The oven controlled crystal oscillator for surface mounting comprises: a flat first substrate made of ceramic and on which are installed a crystal device and a heat resistor; and a second substrate made of a glass epoxy resin which is quadrangular in plan view and which faces the first substrate and has a larger external shape in plan view than the first substrate. The second substrate has an opening into whose center the crystal device is inserted, and has terminal sections on four locations corresponding to the surface outer periphery of the first substrate and the peripheral surfaces of the opening in the second substrate, and the terminal sections of the first substrate and second substrate are connected by solder. A front end side head section of the crystal device inserted into the opening section of the second substrate is positioned inside the open surface of the opening section, and from terminal sections provided at four locations on the second substrate, conductive paths extend via the outside surface of the second substrate to external terminals formed on the outside bottom surface of the second substrate.

An engine-driven generator includes a fuel tank disposed in front of a cooling fan, an air guide space defined between the fuel tank and the cooling fan, an inverter disposed beside a lateral side part of the air guide space, and an air shroud provided between the inverter and the air guide space. The fuel tank is vertically elongated to face a cylinder block of a vertical engine. A storage space having the inverter disposed therein is connected to the air guide space via the air shroud.

PCBs, PCB components and PCB assemblies are provided with mounting configurations and structures for reducing Z height dimensions of the PCB assemblies and, in some instances, for improving thermal conductivity of the PCB components and assemblies. The active illumination device or other PCB components (e.g., camera modules and LED packages) are affixed to a mounting substrate that has a top surface that is physically and electrically mounted to a bottom surface of a PCB, with at least a portion of the active illumination device being concurrently positioned within one or more holes in the PCB. A thermal interface in contact with at least the mounting substrate can also be used for dissipating heat from the PCB components and PCB.

A laboratory instrument with a housing containing a weighing cell has a working compartment that is connected to the housing. The working compartment has a floor, a top cover, a rear wall, a front wall and two sidewalls. Arranged in the working compartment is a load receiver which is connected to the weighing cell. Also connected to the housing is at least one guiding device which serves to guide a linear movement and simultaneous swivel movement of individual portions of the front wall or the entire front wall.

A loudspeaker diaphragm having a small overall height dimension, in which a dome portion has a sufficient rigidity and which is capable of realizing a stable loudspeaker operation, wherein the loudspeaker diaphragm can realize a desirable sound reproduction without noise, or the like, with a frequency response that is flat over a wide range. In the loudspeaker diaphragm of the present invention, the dome portion includes a concave dome portion formed at a center thereof, a convex dome portion along an outer periphery of the concave dome portion, a plurality of depressed ribs each extending in a radial direction across a boundary between the concave dome portion and the convex dome portion, a voice coil attachment portion along an outer periphery of the convex dome portion, and a plurality of protruding ribs extending in the radial direction across a boundary between the convex dome portion and the voice coil attachment portion, wherein each protruding rib is spaced apart in a circumferential direction from two adjacent depressed ribs.

A refrigerant evaporator includes a plurality of vertically disposed flat tubes, and a refrigerant distribution and supply section that causes inflowing refrigerant to flow out to the plurality of flat tubes on a downstream side. The refrigerant distribution and supply section includes a refrigerant supply section having plural supply spaces, a refrigerant introduction and distribution section having an introduction space to introduce the inflowing refrigerant from a lower end side surface, and a distribution space to distribute the refrigerant, and plural connecting passages that guide the refrigerant to the supply spaces. A first flat tube communicating with a lowermost-tier supply space positioned on the lowermost side is disposed at a height position included in a height range of the introduction space, and a lowermost-tier connecting passage that guides the refrigerant to the lowermost-tier supply space is disposed at a position higher than the introduction space.

A portable plastic film wrapping system comprises a push-cart having a vertical mast member mounted thereon, and a film roll carriage is vertically movable along the mast member. The film roll carriage is operatively connected to negator spring members by a film roll carriage lift cable, and a holding pawl mechanism is adapted to be movable between ENGAGED and DISENGAGED positions with respect to the film roll carriage lift cable. When the holding pawl mechanism is moved to its DISENGAGED position, the negator spring members cause the film roll carriage to be vertically elevated, whereas when the holding pawl mechanism is disposed at its ENGAGED position, movement of the film roll carriage lift cable, and the film roll carriage, is effectively prevented. The film roll carriage can also be controllably moved in both upward and downward directions so as to achieve bottom-to-top, as well as top-to-bottom, wrapping modes of operation upon palletized loads.

A surface-mount type crystal oscillator includes: a container body with a first recess and a second recess; a crystal blank including excitation electrodes on respective principal surfaces thereof and hermetically encapsulated in the first recess; and an IC chip which is accommodated in the second recess and into which at least an oscillation circuit using the crystal blank is integrated. The container body includes a bottom wall and a frame wall provided on the bottom wall. Two openings which make up the first and second recesses, respectively, are formed in juxtaposition in the frame wall. A pair of inspection terminals are provided in an area of a top surface of the frame wall which surrounds the second recess. The inspection terminals are electrically connected to the excitation electrodes of the crystal blank.