Abstract: A sealing structure using a liquid gasket, having a liquid gasket interposed in the form of a thin film between mating surfaces of a first member and a second member, thereby preventing the movement of oil via the mating surfaces, the sealing structure, includes at oil-side end portions of the mating surfaces, a gasket lump portion that is formed of an excess of the thin-film liquid gasket squeezed out from the mating surfaces, and an oil-shielding portion that covers a boundary portion where the gasket lump portion and the first member come into contact, thereby preventing a flow of the oil from directly striking the boundary portion, and is provided on an oil-flow upstream side from the boundary portion.

Abstract: The present invention provides a blade seal for use with a blade that compresses the blade seal to form a seal across a sealing junction. The blade seal includes a recessed ridge for receiving the blade and having a plurality of ridge contact points. When the blade compresses the blade seal to form the seal, the plurality of ridge contact points contacts the blade. The blade seal also may include side lobes extending from the recessed ridge and having respective lobe contact points. When the blade compresses the blade seal, the lobe contact points also contact the blade. The blade seal also includes a secondary sealing portion. When the blade compresses the blade seal to form the seal, the recessed ridge presses against the secondary sealing portion. The multiple contact points between the blade seal and blade, and the presence of a secondary sealing portion, enhance the efficacy of the seal.

Abstract: A motor includes a sleeve supporting a shaft such that an upper end of the shaft protrudes upwardly along an axial direction, a sleeve housing in which an outer diameter portion of the sleeve is inserted and supported, an oil sealing cap covering the sleeve at an opposite side of the sleeve housing, and having a sealing protrusion protruding from a top surface thereof to form a capillary seal of oil between the shaft and the sleeve, and a hub base pressure-fitted and fixed on the upper end of the shaft, and having a hub-base outer diameter portion facing the sealing protrusion and forming a first oil sealing part with the sealing protrusion.

Abstract: A seal design provides positive compression to produce a hermetic seal around a feedthrough pin in a hermetically sealed device, including an implantable medical device. One embodiment of the seal design uses a plurality of “micro-flanges” placed along the length of a feedthrough pin, which micro-flanges grabs and compresses the insulator material to form a hermetic seal. Because the seal design produces positive compression of the insulator, the seal is relatively insensitive to changes in temperature and to differences in thermal expansion coefficients (“TCEs”) between the metal feedthrough and the insulator. It is therefore possible to use a wider variety of materials for the insulator and the feedthrough with the described sealing design, while achieving a superior hermetic seal.

Abstract: Provided is a seal that can ensure a satisfactory sealing property and can be easily separated from a sealing surface even in the case in which the seal is used for a long period of time under the conditions of a high temperature and a high pressure. The seal includes a seal body mounted in a seal groove that is formed in a first member and a second member is made to be in pressure contact with the first member to form a sealing part. The sealing part that comes into contact with the second member at the entire surface of the sealing part is formed along the entire circumference of the outer peripheral surface of the seal. A step portion is formed on the outer peripheral surface of the seal in such a manner that an area of a contact surface is smaller for the sealing part as the contact area is closer to the bottom side of the seal groove.

Abstract: A turbine blade assembly, in particular for a gas turbine, is provided. The turbine blade assembly includes a disc with a rotation axis, turbine blades, each turbine blade including an airfoil, a blade root and a platform between the airfoil and the blade root by which it may be fixed to the disc, locking plates and bent seal strips. The turbine blades are arranged adjacent to each other on the disc, such that gaps are present between the platforms of adjacent turbine blades and root cavities are present between the portions of the roots of adjacent turbine blades. The turbine blades are secured axially to the disc by the locking plates. The seal strips are arranged in the gaps between the platforms of neighbouring turbine blades to seal the gap and protrude axially over the blade root and over the locking plate.

Abstract: A silicone seal for surrounding and sealing an object has spaced thick beads and a rigid ring positioned between the beads. When the silicone seal is slid on the object, the silicone is compressed between the ring and the object and between the beads and the object. A plate has a flat base and an angular raised central portion with a ledge at an angle to the base. The silicone continues downward from the seal through a flexible middle to an enlarged part which has a complementary ledge that is seated on the plate ledge. An end of the large part is joined to the plate inward of the ledge.

Abstract: A compliant structure comprises first and second sections 22, 24 which are separated by a gap 26 but connected by flexure elements 28. The element is compliant in the direction to close the gap 26. The element may take the form of a seal to fit between flanges 12, 14 (FIG. 1) engaging sealing surfaces 30, 32 of the element. Alternatively, a plurality of the elements may be formed into a partitioned structure which is compliant in one direction but relatively stiff in other directions.

Abstract: A ring seal includes a sealing ring including an asymmetric body portion having axially-opposed and radially-offset seal beads. The ring seal may also include a reinforcement ring carried at least partially in the sealing ring to distribute load across the seal beads. The ring seal may further include a skirt depending generally axially from the body portion and defining an inner diameter of the sealing ring and preferably having frusto-conical cross-sectional shape.

Abstract: A method for producing a seal-in foil for the gas-tight electrical feed in a lamp is provided. The seal-in foil may be separated from a foil perform. The method may include forming a weakened zone and separating the seal-in foil along the weakened zone.

Abstract: A closure assembly with a shape memory polymer seal is provided for use with a vehicle. The closure assembly includes a frame member configured for attachment to the vehicle body to selectively transition from a closed position to an open position. The seal structure includes a base portion elongated along and attached to a peripheral edge of the frame member or the vehicle body, and a flexible contact portion extending integrally from the base portion and configured for sealing communication with an opposing surface. A thermally-activated smart material (TASM), namely a shape memory polymer member, is disposed inside a cavity within the contact portion. A thermoelectric device is in thermal communication with the TASM, and is characterized by a thermal differential when current flows therethrough. The TASM is activated in response to the thermal differential of the thermoelectric device, thereby altering at least one physical property of the TASM.

Abstract: An apparatus for connecting a plurality of structures, such as ends of a sealing ring, with each end defining an aperture therein and with the ring being adapted to mount a meter to a meter box structure. The apparatus comprises a locking pin with a distal end adapted to be insertable through each of the apertures of the first and second ends of the ring. The locking pin comprises a head member having at least an engageable end and a fracturable member. The locking pin further comprises a shaft portion having the distal end. The apparatus further comprises a lock housing adapted to retain at least a part of the shaft portion such that the first and second ends of the ring are connected between the head member of the locking pin and the lock housing. The head member has an outer surface adapted to receive at least two opposing forces, the at least two opposing forces being of sufficient magnitude to break the fracturable member.

Abstract: A sealing system for a pump having a plunger includes a housing having an internal chamber adapted to receive a portion of the plunger. Primary and secondary seals are located within the internal chamber and adapted to sealingly engage the plunger. The primary seal communicates with the fluid being pumped. A barrier fluid chamber contains a barrier fluid in contact with the primary seal and the secondary seal. A pressure referencing device has an inlet port in communication with the pumped fluid and an outlet port providing fluid at a pressure magnitude equal to a peak pressure of the pumped fluid. A pressurizing device is in communication with the fluid at the peak pressure and the barrier fluid to maintain the barrier fluid pressure at a magnitude greater than the peak pressure of the pumped fluid such that the pumped fluid is restricted from leaking past the primary seal.

Abstract: A railroad tanker car 10 with a fluid cargo tank 11 and a manway assembly 12 is disclosed. The manway assembly 12 includes a nozzle 17 having a nozzle sealing surface 24 and a cover 18 having a cover sealing surface 33. An attachment device 19 supplies a closing force to bias the cover 18 toward the nozzle 17. A fluid seal 51 prevents egress of fluids from and ingress of contaminants into the tank 11. The seal 51 includes a cover seal member 54, a nozzle seal member 55, and an expander 56 that forces the members 54 and 55 against their respective cover and nozzle sealing surfaces. The fluid seal 51 also includes a compression limiting carrier 52 with integral locating tabs 53 that locates the seal 51 and controls the compression of the elastomeric components of the seal 51.

Abstract: The description relates to a handle shell to be installed in an opening in a thin wall such as a sheet-metal door leaf, a side wall of a sheet-metal cabinet, or the like, with a flange part, fastening elements proceeding from or being received in the flange part for fastening the flange part to the thin wall, and with a shell part. According to the invention, the flange part and shell part are two separate structural component parts, the flange part has a first flange supported on the edge of the opening in the thin wall, and the shell part of the handle shell has another flange which is enclosed in such a way by the first flange part after being installed that it extends between the thin wall and the first flange part.

Abstract: A sealing member for reducing or preventing loss of air from a multi-cyclone dust separating apparatus in a vacuum cleaner is provided. A sealing member comprises an inner sealing portion for maintaining sealing between a first cyclone unit and second cyclone units, an outer sealing portion for reducing or preventing the inflow of air to the cyclone dust separating apparatus from its exterior, and a cyclone receiving portion connected to the inner and outer sealing portions by a connecting member. The cyclone receiving portion includes holes in which at least portions of the second cyclone units are respectively received.

Abstract: The present invention is directed to a resilient, annular, seal. In one embodiment, the annular axial seal comprises a first linear section consisting of a first end and a second end, a first side in a first plane and an opposite second side in a second plane. The second plane is substantially parallel to the first plane, wherein the first linear section does not have any inflection points formed therein. The annular axial seal further comprises a first portion contiguous with the first end of the first linear section. The first portion is curved with respect to the first linear section and in accordance with a first predetermined radius such that the first portion breaks the first plane. The first portion extends to a first distal end. The annular axial seal further comprises a second portion contiguous with the second end of the first linear section.

Abstract: The invention relates to a method for depositing samples in modules, in particular, in kits, in addition to an adapter. The inventive adapter (1) is embodied in such a manner that an injection needle can be received in a liquid-tight manner. It is connected in a liquid-tight manner to the low-lying module or kit (20) and enables a continuous flow of samples.

Abstract: The invention relates to a sealing mechanism for a scale, in which a connection element connected to a moving lifting element seals or opens an annular gap, wherein, for an opened annular gap, the connection element and lifting element form a biasing load for the weighing sensor of the scale.

Abstract: The present invention provides various aspects of support for a processing tool in a fabrication facility capable of routine placement and replacement of processing tools and component assemblies of the tools. Support aspects include a support structure for component assemblies and a quick disconnect flange which facilitates connecting and disconnect of electrical, liquid and gas utilities to a tool component placed in the processing tool.

Abstract: A seal assembly includes a first seal and a second seal and positioned in the first end element. The second seal can include at least one longitudinal groove therein and have members connected thereto. A stopper member is coaxially positionable within the second seal and the first seal and a lubricant can be positioned between the stopper member and the second seal. The seal assembly can also be integrated with a capsule for removable insertion within a tubular member.

Abstract: Embodiments of the present invention provide systems, methods and apparatus for providing reliable sealed enclosures for surveillance cameras that are capable of protecting an internal surveillance camera and related electronics from harsh external environmental conditions without using adhesives using a unique a sealing gasket that is sandwiched between upper and lower housing parts of a camera enclosure. The unique sealing gasket includes a flexible portion corresponding to the surfaces of the housing parts to be engaged that is generally perpendicularly attached to a front panel. The front panel has a central viewing pane, and a peripheral flexible sealing surface. A unique aspect of the sealing member of embodiments of the present invention is the inclusion of the front panel, viewing pane and upper/lower housing seal in a single member.

Abstract: The invention relates to a high temperature-resistant sealing assembly comprising a sealing segment and a component border which is connected to the sealing segment. A flexible sealing element is provided in order to joining the sealing segment and the component border. The invention is characterized in that the flexible sealing element compensates both thermal expansions and relative movements of the component border and the components resting against the sealing segment. The flexible sealing element and the sealing segment are subject to little wear and have a long service life. The invention further relates to a combustion chamber that is equipped with a high temperature-resistant sealing assembly as well as a gas turbine encompassing such a combustion chamber.

Abstract: A seal assembly for an optical sensor employed in a high temperature environment is disclosed which includes an elongated metal guide tube having a distal end portion defining an open distal end and an inner rear wall, a sapphire window disposed within the distal end portion of the metal guide tube, the sapphire window having a rear end surface abutting the inner rear wall of the distal end portion of the metal guide tube, and a platinum mounting sleeve for securing the sapphire window to the metal guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire window.

Abstract: A method of assembling a pressure sensing module includes affixing a pressure sensor unit to an alignment tool and indexing the alignment tool to a circuit board. After the pressure sensor unit is attached to the circuit board, a seal plate is indexed thereto. A locator feature indexes receptacle elements on the circuit board, alignment tool, and seal plate. An integrated seal module includes a mounting plate having first and second opposing faces, and at least one locator hole and one or more pressure passages extending therethrough. A unitary seal member effects a fluid seal between the pressure ports and the first face and the pressure sources and the second face. A seal member and locator bushings may be formed as a single, continuous liquid injection molded framework, including portions encased by the mounting plate. Pressure passages provide fluid to pressure sensors, which may be overmolded in the mounting plate.

Abstract: A seal ring includes a weld and a thermoplastic material. The thermoplastic material has a weld elongation-at-break of at least 3%. The thermoplastic material can have a glass transition temperature of at least 100° C. The thermoplastic material with the weld can have a weld elongation-at-break of at least 3%. The seal ring can have a circumference of at least 0.62 meters. The seal ring can have a coefficient of friction of not greater than 0.45.

Abstract: A home appliance and a washing machine are provided. With a configuration in which an ornament having a patterned portion on which a predetermined image is formed and a transparent member placed on an outer surface of the ornament are closely attached to each other, it is possible to prevent water from entering a gap between the ornament and the transparent member.

Abstract: A seal structure for sealing a first molding member and a second molding member that covers the first molding member, the seal structure includes a seal portion functioning as a boundary between the first molding member and the second molding member and sealing the first molding member and the second molding member by means of a thermal action, and a stress relax portion mounted around the seal portion and releasing a stress applied to the seal portion caused by the thermal action.

Abstract: A grommet is formed having a funnel shaped portion and a tubular portion linked to a small diameter end portion of the funnel shaped portion. The grommet is inserted to an aperture of a car body panel after a wire harness is passed through and attached to the funnel shaped portion and the tubular portion, and a body latch groove provided on the external circumferential surface of the funnel shaped portion is latched to the car body panel. An extended tubular portion is provided that projects from the tubular portion, and extends inside the funnel shaped portion. A plurality of ribs is provided on an external circumferential surface of the extended tubular portion. The ribs include type one ribs having grooves on both surfaces of an element linking the rib to the extended tubular portion, and a type two rib having no groove.

Abstract: Dry-to-the-touch compositions containing a polymeric matrix and a anaerobically curable component present within the polymeric matrix are disclosed. In a particularly desirable form, the compositions are moisture curable. The compositions are non-flowable, at high temperatures, and have an improved solvent resistance once cured.

Abstract: A fireplace comprised of a burning chamber having an opening to a room and a vertically lifting door having a top edge, a bottom edge and opposing side edges. The door narrows in width from the top edge to the bottom edge to provide a keystone-shaped door. A frame is fitted in front of the burning chamber. The frame includes guide tracks configured to accept the edges of the door. A drive mechanism is provided to raise and lower the door within the guide tracks. The guide tracks may further incorporate a high temperature gasket to prevent airflow and promote energy efficiency when the door is closed.

Abstract: Sealing device (23) for a machine (1) for the plasma treatment of containers (2), comprising at least first and second annular sealing surfaces (24, 25) suitable for cooperating respectively with first and second separate annular zones (13, 15) of the neck (12) of a container (2).

Abstract: A gasket and sealing system are described herein. One aspect of the invention is a gasket for providing a seal between a first object and a second object. The gasket comprises a base portion for sealing engagement with the first object at a first location and a deflectable portion extending from the base portion. The deflectable portion has an end portion initially spaced from the first object. The deflectable portion is engageable with the second object for sealing therebetween upon engagement with and movement of the second object towards the first object. The end portion is engageable with the first object at a second location upon the second object being further moved towards the first object.

Abstract: A gap 6 between a stationary component 2 and a rotating component 4 is sealed by means of a leaf seal comprising leaves 8 having a geometry such that the centre of torsion CR of the leaf 8 is disposed upstream of the centre of pressure CP at the tip 12 of the leaf 8. As a result, the tip region of the leaf 8 is relatively stable when subjected to an air flow F, enabling damaging flutter to be suppressed.

Abstract: The present invention concerns a seal for a cable entry, pipe penetration or the like formed of two halves. The seal is to be received in a sleeve or the like and forms a central opening for a cable (7), pipe or the like when the seal halves are brought together. The outer diameter of the seal is variable to be adapted to different mounting dimensions. To adapt the outer diameter of the seal to the mounting dimension of the sleeve, a number of outer peeling sheets (5) are arranged on the outside of the seal. The sheets (5) adhere to each other but may be peeled off by hand.

Abstract: A metal to metal seal for downhole tools. A sealing device includes a metal seal. A nonmetal seal may be used to bias the metal seal in a radial direction in response to a pressure differential applied to the sealing device. A well tool includes a housing assembly, a closure member and the sealing device. Both of the metal and nonmetal seals contact a selected one of the housing assembly and closure member when the closure member blocks flow through the housing assembly. A method of sealing between the housing assembly and closure member includes the step of displacing the closure member to relieve the pressure differential, the metal seal continuing to seal against the pressure differential until the nonmetal seal no longer seals between the housing assembly and the closure member.

Abstract: A turbine includes a static member, a moveable member fluidly connected to the static member, and a flexible seal. The flexible seal includes a spring component having a base section mounted to one of the static member and the moveable member of the turbine and a plurality of biasing members. Each of the plurality of biasing members includes a first portion extending from the base section and a cantilevered portion. The flexible seal further includes a seal component provided on the cantilevered portion of each of the plurality of biasing members. The seal component is biased into contact with the other of the static member and the moveable member.

Abstract: A seal structure of a fuel cell includes a first seal surface formed in a first separator disposed on one side of an electrolyte membrane and a second seal surface formed in a second separator disposed on the other side of the electrolyte membrane, and a sealant collecting structure formed in or outside at least one of the first and second seal surfaces. The sealant collecting structure is constructed of a stepped receding surface formed in at least one of the first and second seal surfaces, a concave or groove formed in an inner portion and/or an outer portion of at least one of the first and second seal surfaces, a space formed outside at least one of the separators, or a stepped recess formed in at least one of the separators. The sealant collecting structure receives an extra sealant therein to ensure uniform seal pressure acting on the sealant and to prevent the extra sealant from being bulged out to gas passages and to a gas manifold.

Abstract: Mounting rings and methods for mounting structures to shafts are provided. The rings and methods may be used to mount other rings or housings to a shaft. The rings are characterized by having flexible inner diameters that can deflect under a radial load. The radial deflection of the inner diameter permits the rings to deflect and engage an outer diameter of a shaft. The engagement of the rings with a shaft provides at least some resistance to the rotation of the shaft relative to the ring and structure. In one aspect, the ring is substantially rigidly mounted to the shaft. The ring may include a plurality of indentations, such as slots, on the inside diameter of the ring. These indentations may relieve at least some of the circumferential stress created by the radial deflection. Methods for using the rings to mount a structure to a shaft are also disclosed.

Abstract: A sealing system is disclosed. One such sealing system includes a first vacuum chamber and a second vacuum chamber. The sealing system includes a first sealing unit having a proximal end and a distal end, the proximal end of the first sealing unit disposed on the first vacuum chamber. The sealing system includes a second sealing unit having a distal end and a proximal end, the distal end of the second sealing unit disposed on the distal end of the first sealing unit and the proximal end of the second sealing unit disposed on the second vacuum chamber. One of the sealing units is concave, while the other is convex. The sealing system also includes a first o-ring, a second o-ring, and a third o-ring.

Abstract: A latch for attaching a display module to a face panel, the latch comprising: a front panel; rear panel; latch arm; circular extension; and circular rotating cuff; wherein the top and bottom portions of the rear panel are fixedly attached to the front panel; the latch arm is situated in between the front panel and the middle portion of the rear panel; the circular extension extends perpendicularly from the front panel and is fixedly attached to the latch arm; the circular rotating cuff is located in a cut-out in the middle portion of the rear panel and is fixedly attached to the latch arm; the circular extension and circular rotating cuff each comprises a wrench hole; the wrench holes in the circular extension and circular rotating cuff do not extend all the way through the latch; and the circular extension comprises one or more O-rings.

Abstract: An instrument panel assembly for a motor vehicle includes a panel member, a first conduit, a second conduit and a gasket disposed between the first and second conduit. The panel member has a vent for directing air toward a window in the vehicle. The first conduit has a first end coupled to a bottom side of the panel member and providing air to the vent. The first conduit has a second end with a peripheral wall forming an inlet. The second conduit has an outlet that provides air to the inlet of the first conduit. The second conduit has a flange that extends outwardly from the outlet and includes a support surface that supports a gasket for sealing an interface between the outlet of the second conduit and the inlet of tie first conduit. The second conduit has a lip that extends outwardly from the support surface of the flange and supports the gasket to prevent deformation of the gasket during assembly of the first conduit and second conduit.

Abstract: Methods and Apparatuses for Generating a Seal Between a Conduit and a Reservoir Well. According to one embodiment, an apparatus is provided for generating a seal between a conduit and a reservoir well. The apparatus can include a mount including a first and second end. The mount can also include a first aperture extending between the first and second ends. The apparatus can also include a tube including a first end engaging the first end of the mount, and operable to hold a conduit having an end such that the conduit extends through the first aperture of the mount and the end of the conduit communicates with a reservoir well. Further, the apparatus can include a nut operable to engage the mount and tube and seal the conduit to the first aperture of the mount such that air cannot communicate from the reservoir well through the first aperture of the mount.

Abstract: A low-leakage seal system for a pivot door type thrust reverser comprises a forward seal, an aft seal, and a pair of seal stops. The forward seal is attached to a forward portion of a thrust reverser. The aft seal is attached to an aft portion of the pivot door. The seal stops are attached to opposing sides of the pivot door and each seal stop couples with a pivot door hinge pin. Each seal stop includes a forward tab and an aft tab. The forward tabs of the seal stops make flush contact with the forward seal and the aft tabs make flush contact with the aft seal such that a continuous seal is formed between the pivot door and the fixed structure of the thrust reverser when the pivot door is stowed.

Abstract: A pump, preferably a vane cell pump for supplying a transmission with oil, includes a pump housing and a rotating group which is disposed inside the pump housing. The rotating group includes a side plate that may be mounted inside the pump housing in such a manner as to produce, at least temporarily, an axial gap between the side plate and the pump housing. A shaft is mounted inside the pump housing and a radial packing ring is located in a recess around the shaft. The packing ring seals off the rotating group towards the exterior radially on the pump housing and radially on the shaft using a sealing lip.

Abstract: The invention relates to a control device in a fluid environment with a housing, comprising a housing lid (1) for accommodating sensors and a housing shell (2) for receiving at least one control unit (3). The inventive control device further comprises at least one device (4) for electrically connecting the sensors to the control unit (3) as well as at least one sealing element (5) for sealing the housing shell (2) against the fluid environment. According to the invention the device (4) for electrically connecting the sensors located on the housing lid (1) to the control unit (3) in the housing shell (2) is embodied as a film conductor between the housing lid (1) and the sealing element (5) while the sealing element (5) is embodied as a plane sealing element.

Abstract: The present invention provides a sealing device of a steering column where a sealing member of a steering column passing through a dashboard and a dust cover provided to a dashboard are separately formed and detachably attached to each other, thereby effectively intercepting noise and foreign substances transmitted into a vehicle cabin from an engine room. The sealing device includes a shaft, a sealing member, and a dust cover. The shaft connects a steering column with a steering gearbox. The sealing member is rotatably provided on shaft at a predetermined position. The dust cover is detachably attached to sealing member and is provided to a dashboard.

Abstract: A housing comprises a first housing part, having a first bearing surface for a first contact surface of a sealing ring, and a second housing part, which can be screwed together with the first housing part and has a second bearing surface for a second contact surface of the sealing ring. The first contact surface of the sealing ring is produced from a first material having a first coefficient of friction in relation to the material of the first bearing surface, the second contact surface of the sealing ring is produced from a second material that has a second coefficient of fiction in relation to the material of the second bearing surface, and the first coefficient of friction is smaller than the second coefficient of friction.

Abstract: A safe, reliable chemical reactor (1, 20) with a simple construction, easy to assemble and to disassemble comprises a casing (2), a male member (3) supported by the casing (2) and inserted with a certain clearance in a female member (4) associated to the casing (2), as well as a metallic foil (10) capable of being deformed fixedly connected to the male member (3) and protruding into said clearance (8), in order to hinder the fluid passage through the clearance.

Abstract: Sealing member seals a through-hole formed in a panel that defines first and second compartments of a vehicle, and it has a tubular section and stopper portions. The intercompartment sealing member is fit onto a receiving member provided in the first compartment. Lip section, extending from the tubular section toward the panel in a spread-out form, is bendable (reversible) with respect to the panel. The lip section has operating convexities provided on its panel-facing surface. Manipulation of the operating convexities can invert the lip section, initially bent away from the panel, to contact the panel. The stopper portions function to limit a bent amount through which the lip section can be bent away from the panel (in the reverse direction).