39results about How to "Small hole" patented technology

A ceiling-mounted loudspeaker includes a horn-shaped enclosure, an acoustic driver, and a front module. The tubular or horn-shaped enclosure carries a slanted woofer or loudspeaker driver which radiates into an angled or slanted first opening. The tubular enclosure terminates at bottom in a second, circular opening substantially parallel to a second plane, wherein the woofer's slanted plane is inclined with respect to the second plane. The slanted woofer can be oval and radiates sound through the enclosure's interior lumen and outwardly through ports defined in a substantially circular baffle carrying the front module and connected to the second opening. The baffle carries a midrange and tweeter near the ceiling where they can provide enhanced sound dispersion.

A steering locking device (1, 1A, 1B, 1C) includes: a locking member (6) including a first face (B) parallel to an axial direction of a steering shaft, a second face (C) perpendicular to the first face (B), and a protrusion (62) protruding from the second face (B); and a sliding plate (91) extending from the first face (B) in a plate thickness direction (D) of the locking member (6), arranged outside the first face (B), and engageable with the protrusion (62).

A probe card includes a probe seat having upper and lower dies and a probe accommodating hole, a spring probe inserted through the probe accommodating hole and including a spring sleeve having upper and lower non-spring sections, and a circuit board disposed on the upper die and having a contact pad against which the spring probe is abutted. At least one of the upper and lower dies has a stopping surface partially facing the probe accommodating hole and an extended portion inserting hole in alignment with the probe accommodating hole. At least one of the upper and lower non-spring sections has a cylinder portion abutted on the stopping surface and an extended portion inserted through the extended portion inserting hole.

A vehicle wheel, comprising: a rim; a hub; a plurality of spokes; a bracing element including a hole, a hole sidewall, and an engagement surface outward of the hole; and a connecting element with a spoke opening and an overhang surface. The spoke is connected to the connecting element and the connecting element is connected to the bracing element at the hole, with the bracing element comprising one of the rim and hub. With the spoke maintaining alignment with the connector, the connecting element may be transitioned between an insertion orientation where the connecting element may be inserted in the hole and an engagement orientation where the connecting element is engaged to the bracing element, with a toggle angle between the insertion and engagement orientations. The hole is preferably a circular hole. The spoke opening preferably includes internal threads to mate with external threads of the spoke.

There is provided apparatus for propagation of a wireless signal through a barrier comprising a first antenna for location on a first side of the barrier, a second antenna for location on a second side of the barrier and a waveguide. The waveguide comprises a conducting member passing through the barrier between the first and second sides. The conducting member is held within an insulator sleeve such that it is spaced from a surrounding metal wall of the waveguide. A wireless signal received by the waveguide on the first side of the barrier is transmitted through the barrier by Transverse Electro-Magnetic (TEM) mode propagation along the waveguide is re-radiated on the second side.

A method and an apparatus are provided for preventing formation of dew and/or ice on an optical glass window, with which formation of dew and/or ice is easily and simply prevented while an air turbulent disturbance is minimized and a deformation is inhibited as little as possible.

A protective tube (6) covering an external atmosphere of a cooled optical glass window (2) and thermally insulated from the optical glass window (2) is provided so as to prevent the external atmosphere from being cooled in order to prevent the optical glass window (2) from having dew and/or ice formed thereon.

The invention discloses a spunlaced nonwoven filter material and a weaving process thereof. The spunlaced nonwoven filter material is formed by weaving bamboo charcoal fibers, linen fibers, viscose, polyester fibers and hot-melt fibers, wherein the mass of the bamboo charcoal fibers is 25%-35%of the total mass of the spunlaced nonwoven filter material, the mass of the linen fibers is 15%-25% of the total mass of the spunlaced nonwoven filter material, the mass of the viscose is 5%-10% of the total mass of the spunlaced nonwoven filter material, the mass of the polyester fibers is 10%-30% of the total mass of the spunlaced nonwoven filter material, and the mass of the hot-melt fibers 5%-10% of the total mass of the spunlaced nonwoven filter material. The filter material is prepared from the hot-melt fibers, thereby having the higher stiffness and the better effect; meanwhile, the filter efficiency of the filter material is quite high, and the spunlaced nonwoven filter efficiency is improved to 99.995% from the original 20%-40%.

The present invention relates to a process for the manufacture of infusion packets, the process comprising: • (a) providing a first sheet of thermoplastic material (2) which is porous or non- porous; • (b) thermoforming portions of the first sheet into a three-dimensional shape; • (c) providing a second sheet of material; • (d) dosing an infusible substance into the thermoformed portions of the first sheet or onto the second sheet; • (e) sealing the first and second sheets together to form pockets containing the infusible substance such that each pocket includes at least one thermoformed portion of the first sheet; • (f) severing the pockets at the seals to form infusion packets each having a chamber containing the infusible substance,

The present disclosure relates to the field of endovascular treatment. More particularly, the present invention uses a modified hydrogel intrasaccular occlusion device designed to implement an endovascular treatment to ameliorating or eliminating aneurysm recurrence, which hydrogel may optionally be impregnated with pharmaceutical compounds. The present invention also teaches the use of thin hydrogel coatings to ameliorate endovascular treatment related difficulties.

The invention relates to fixed facility of a substation, in particular to a rainwater head cover plate of a substation, which comprises a cover plate base body, wherein the cover plate base body is provided with a grating groove running through up and down; edges of two sides of the back of the cover plate base board are provided with two insertion strips with L-shaped sections, vertical edges of the insertion strips are embedded into the cover plate base board, and horizontal edges of the insertion strips are positioned below the bottom face of the cover plate base body to enable gaps among the horizontal edge of the insertion strips and the bottom plane of the cover plate base body to form a pair of slots positioned at two sides; and a filter screen layer is horizontally inserted into the slots in a plug way, and can be freely inserted or drawn out of the slots. The invention has the advantages that: 1, the filter screen can prevent impurities with larger volume from entering a rainwater head so as to avoid the blockage of the rainwater head; 2, the drawable filter screen is convenient for cleaning the impurities and is more convenient; and 3, holes of the filter screen are smaller, which can prevent small animals from entering the rainwater head and a cable duct and ensures the safety operation of equipment.

An aircraft structure comprising a wing tip device connected to a wing by a plurality of connectors, wherein each connector comprises a spigot associated with the wing tip device or the wing, and a lug associated with the other of the wing tip device or wing. The lug has a hole for receiving the respective spigot. The spigot of each connector is moveably mounted, relative to said wing tip device or wing, about a central position, such that during movement of the connectors from a dis-engaged configuration to an engaged configuration, each spigot can move away from the central position to align itself with the hole of the respective lug.

A stylet, apparatus and method for inserting a catheter into the dura of a patient. A hole having a predetermined diameter is made in the dura of the patient. An extensible catheter having a predetermined diameter in a relaxed state is stretched. The predetermined diameter in the relaxed state being greater than or equal to the predetermined diameter of the hole. The catheter is stretched a predetermined distance to a stretched state such that the catheter has a diameter in the stretched state that is smaller than the predetermined diameter of the hole. The stretched catheter is secured in the stretched state. The stretched catheter is inserted through the hole into the dura of the patient. The catheter is returned to its relaxed state allowing the catheter to fill the hole.