72 results about "Lip structure" patented technology

Flat gasket ring, in particular for producing a flange connection between moldings, the flat gasket ring having, along its outer circumferential line, lip structures which are intended for accommodating the gasket ring in a positively locking manner in relation to moldings.

The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented. Alternatively, the cervical plate locking mechanism of the present invention utilizes a locking plate having petal structures that are inwardly biased prior to insertion of the head portion of the locking screws via an externally-disposed c-ring or the like.

The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented.

An electric motor comprising a stator and a rotor, the stator comprising: a stator core having a yoke and a plurality of teeth extending inwardly from the yoke, a slot being formed between adjacent teeth; windings wound around the teeth; and a dielectric slot liner disposed between the stator core and the windings in each slot for insulating the stator core from the windings. Each slot liner comprises a body conforming the stator core in the slot and two ends each with a lip structure protruding relative to the body in a radial direction of the stator to increase the creepage distance between the winding and a distal end of a corresponding tooth of the stator core.

The present invention relates to a reciprocating seal used, for example, for a shock absorber. A main seal lip 32 has a two-step lip structure including a first lip 32a and a second lip 32b and a plurality of protrusions 34 extending in the direction of the shaft are formed on sliding contact surface of the second lip 32b, thereby improving frictional force characteristics and, at the same time, improving sealing performance.

An optical disc holder made of molded elastomeric material designed to protect the recorded side of the optical disc and provide a convenient storage method. The holder includes a flat, circular body with a circular central region and a raised perimeter edge, and three radially aligned tabs. The central region is slightly smaller in diameter than an optical disc so that the body snap fits around an optical disc. Formed on each tab is a curved slot that engages the perimeter edge of the optical disc when the optical disc is inserted over the central region of the body. Formed on opposite surfaces of each tab is a raised lip structure and a recessed surface that are engaged with adjacent disc holders to hold stacked disc holders together.

A patient's smile is improved by photoimaging the patient's smile and scanning the patient's anterior teeth and associated soft lip structure to obtain sets of data mapping the patient's anterior teeth and associated soft tissue structure. The photo image is used to create a desired smile image which is then used to amend the data map of anterior teeth to a substantially identical resultant image which is then used to mill temporary and permanent prosthesis

The present invention provides a mold for oil seal includes an outside diameter upper mold, an oil seal lip mold core and a spring groove lower mold, the oil seal lip mold core is composed of a semi-minor lip mold core, a main lip and a semi-minor mold core, the main lip and the semi-minor lip mold core follow-up with the spring groove lower mold and the semi-minor lip mold core follow-up with the outside diameter upper mold. Applying the mold for oil seal of the invention can assure the machining accuracy and assembly accuracy easily that assures structure of the lip. No matter how much the compound blank weight differs, as long as it can full fill the cavity that can assure products of the same mold with identical lip structure and identical quality. The mold for oil seal can be used for various molding technics of molding, pressure casting and injection, which is suitable for all forms of oil seal production.

The invention relates to a composite type rotary shaft seal and belongs to the technical field of hydraulic and pneumatic sealing piece. The shaft seal comprises a composite sealing body, a spacing ring and a movable retaining ring which are embedded between a shell hole and a rotating shaft and are sequentially assembled together along the axial direction; the composite sealing body consists of a rubber ring body and a frame ring body of which end faces are tightly adhered; the rubber ring body is in interference fit with the shell hole and the rotating shaft respectively to form a lip structure facing towards a high-pressure medium along the axial direction; the lip structure consists of an upper lip clinging to the shell hole, a lower lip clinging to the rotating shaft and a recess part connected with the upper lip and the lower lip; the recess part consists of two sections of bevels and a section of cambered surface connected with two sections of the bevels; and the section of the frame ring body is of a U shape basically. The shaft seal can bear high pressure for a long time, obviously prolong the service life and remarkably improve sealing performance.

A coupler is disclosed for coupling floor maintenance pads to a pad driven disc. The coupler has one part which is mounted to or from an integral part of the driver disc and a second part which snaps onto the first part for holding and centering a maintenance pad to a disc. A spring lock arrangement is provided for preventing the coupler from separating and comprises a spring clip carried by the retainer engageable with lip structure formed on an axially extending wall or flange forming part of the base part. The spring clip is held to the retainer by hub segments and axially spaced tabs which define slots for slidably receiving portions of the spring clip. The spring clips include a pair of elongate legs interconnected by a bridging segment on one end and a pair of finger engageable pressure pads on opposite ends by which the spring clip is squeezed to move corner segments carried by legs inwardly in order to disengage the lip structure thereby releasing the retainer from the base.

The invention provides a method for measuring the size of a bearing sealing ring. The method comprises the following steps of: (1) measuring the sizes of an inner diameter and an outer diameter of the bearing sealing ring; (2) cutting a small section of measurement sample down along the radial direction of the sealing ring; (3) fixing the measurement sample, and detecting the size of the measurement sample under an image measurer; and (4) combining the sizes of the inner diameter, the outer diameter and the measurement sample of the bearing sealing ring, and thus obtaining the size of the sealing ring. According to the method, the sizes of the inner diameter and the outer diameter of the bearing sealing ring are measured at first; then the measurement sample is cut along the radial direction of the sealing ring; the sizes of a lip structure and the like with complicated shapes are measured by the image measurer; and finally, the sizes are combined to obtain the whole size of the sealing ring. The method is simple and feasible, realizes that the bearing sealing ring which has a complicated structure and a small measurement space and is made of a soft material can be measured effectively; and reliable support is supplied for guaranteeing the sealing effect of the bearing sealing ring.

A cylindrical valve assembly, including: a housing defining a port, an interior volume, and an interior surface; a lip structure disposed about the periphery of the port, wherein the lip structure protrudes into the interior volume past the interior surface of the housing; and a valve door defining an exterior surface disposed concentrically within the housing, wherein the valve door is configured to move from an open configuration in which it does not obstruct the port to a closed configuration in which it does obstruct the port, and wherein, when the valve door is in the closed configuration, the exterior surface of the valve door is in contact with the lip structure and not the interior surface of the housing. Optionally, the lip structure is provided by an insert structure that is disposed through the port. Optionally, an end of the insert structure opposite the lip structure includes a velocity stack. Optionally, a plurality of dimples are manufactured into the exterior surface of the valve door.

The invention relates to an automobile water pump bearing sealing device. A sealing member of the device is arranged at a joint on an open end part of a space formed between a rotating shaft and a bearing and arranged in a sealing groove on the outer ring of the bearing under the action of pressure. The sealing member consists of a sealing body, a metal frame and a water throwing ring; the sealing body has a three-lip structure, is elastically pressed against the water throwing ring 30 through a main lip and a second secondary lip respectively and is sealed by contacting a first secondary lip with the bearing; a circular arc water discharge groove is formed on the outer ring of the water throwing ring; centrifugal water throwing effect is produced during rotation, so that substances such as water vapor and the like can be effectively prevented from being immersed into the bearing; the device is used in a high temperature environment so as to prevent lubricating grease leakage caused by pressure rise due to heating inside the bearing; meanwhile, a sealing ring does not deform when contacted with cold water, so that the absorption phenomenon of vapor and dust outside the bearing, which is caused by abrupt pressure drop inside the bearing, can be avoided when the temperature of the bearing is decreased to room temperature from a high temperature.

The invention relates to a composite two-lip threaded lip oil seal, which comprises a metal framework and a rubber body. The inner side of the rubber body is provided with a main lip which has a composite two-lip structure and consists of a threaded lip, a sealing lip and an R-shaped oil storage groove; the threaded lip is positioned at the inner end of the sealing lip; the R-shaped oil storage groove is positioned between the threaded lip and the sealing lip; the thread direction of the threaded lip is opposite to the rotating direction of a working shaft. Because of the threaded multi-lip sealing structure, the oil seal can work under the conditions of high pressure and high rotating speed, has high wear resistance and obvious oil return effect, is more stable and reliable than an oil seal of which the lip is directly provided with an oil return line structure, achieves better durability under the condition that the rubber material is not changed, has longer service life and wider application range, reduces material cost, improves use value and keeps higher economic benefit.

The invention relates to design of a high performance supersonic inlet, and in particular to an air inlet lip structure. The structure comprises an air inlet lip body formed by a support plate, an upper flexible skin and a lower flexible skin, an upper cavity, a lower cavity, an upper lip margin driving part, a lower lip margin driving part and a temperature controlling device, wherein one end, which is close to lip margins, of the support plate is formed by shape memory alloy which has at least two change states to ensure that the air inlet with the air inlet lip structure has a normal state,an opening enlarging state and an opening shrinking state; the upper lip margin driving part and the lower lip margin driving part are both formed by the shape memory alloy and are respectively fixedly arranged on the positions where an upper lip margin and a lower lip margin are located; and the temperature controlling device are used for respectively controlling the temperature in the upper cavity and the lower cavity. The air inlet lip structure disclosed by the invention has the advantages that in the flying process, shapes of the lip margins can be controlled along with the flying speedto ensure that an air inlet lip can maintain good aerodynamic performance in different flying states and can maintain good inlet-engine matching performance in a wide flying speed range.

The invention discloses a food garbage disposal bag for aerospace. The food garbage disposal bag for aerospace is characterized in that the disposal bag comprises (i) a bag body with a foreign object placement opening, (ii) a sealing component which comprises a bone zipper which is arranged at the foreign object placement opening, a slide sheet for pressing the bone zipper and a limiter for limiting the position of the slide sheet, and (iii) a suction component air valve on the side face of the bag body, wherein the air valve comprises a valve body, an air plug and an air valve cover; the valve body is provided with a flange structure; a cylindrical structure is arranged on the upper side of the valve body and is provided with external threads; a circular boss structure is arranged on the inner side; an annular convex lip structure is arranged at the periphery on the upper side of the boss structure; the air plug is an elastic spacer; the outer edge of the elastic spacer covers the annular convex lip structure for forming air-tight matching with the convex lip structure under the action of external pressing force; the air valve cover is provided with internal threads and is in threaded connection with the cylindrical structure for providing pressing force of the elastic spacer and the convex lip structure.

The invention discloses a tour guide robot face device with a human eye concentration identification function and control, and belongs to the field of intelligent service robots. The problem that in the prior art, a tour guide robot is low in man-machine interaction intelligent degree is solved. The robot comprises a robot face and eye mechanism, a mouth mechanism and a control system. The robot face is of a plate-shaped structure, and the eye mechanisms and the mouth mechanisms are arranged on the surface of the robot face. The robot face comprises a visual module, a voice module and a face support. The eye mechanism comprises an eye structure and an eyebrow structure; the mouth mechanism comprises a mouth action mechanism and a lip structure. According to the control system, an improvedRBF neural network learning algorithm is adopted, a human eye concentration prediction model is established, and higher classification accuracy is achieved; the robot can achieve the basic tour guideintroduction function, can detect the micro-expression change of the eye concentration degree of a tourist in real time, adjusts the tour guide introduction content, and meanwhile changes the facial expression of the robot to improve the man-machine interaction performance.

An air intake structure for a turbojet engine nacelle includes a substantially annular main structure having an internal wall, an external wall and an air intake lip structure connecting the external and internal walls upstream. The air intake structure also includes a first acoustic attenuation structure which has a holed acoustic skin, a cellular core and a solid rear skin with which the internal wall is equipped, and a second acoustic attenuation structure having a similar architecture fitted to a part of the air intake lip substantially near a junction with the internal wall. The rear skin of the first acoustic attenuation structure is aligned with the rear skin of the second acoustic attenuation structure, both of rear skins being structural.