Abstract: A plastic sealing fastener includes a fixing member, a locking member defining a locking slot, a latching strip formed on the fixing member and a cover fixed on the fixing member. The locking member forms a locking portion in the locking slot. The cover defines a covering hole communicating with the locking slot, and a size of the covering hole is less than that of the locking slot. The locking portion comprises, for example, three locking teeth.

Abstract: Disclosed is a drain plug for an enclosure that contains a female-threaded opening. The drain plug contains a male-threaded portion and a head portion. The head portion contains a drive structure, an annular groove of substantially rectangular cross section, and a washer of substantially rectangular cross section in the groove. An outer wall of the annular groove is positioned to contact the enclosure when secured to the female-threaded opening.

Abstract: A fastening device comprising a head, an elongated shaft and a seal. The seal has a sealing element and a covering elements made of different materials.

Abstract: A waterproof structure for a tightening section where a first member (1) having a screw hole (1a) with a bottom and a second member (2) having a screw insertion hole (2a) are fastened with a screw (4) that is inserted into the screw insertion hole (2a) and screwed to the screw hole (1a). The screw (4) is a flat head screw, and an annular groove (3b) is formed in the outer surface of a spacer (3) having an insertion hole where recessed circular conical surface (3a) is formed. The spacer (3) is fitted in the screw insertion hole (2a) to be in surface contact with a circular conical surface of a head of the flat head screw. The annular groove (3b) is coaxial with the recessed circular conical surface (3a).

Abstract: In order to produce a combination of a screw member comprising a screw head, a threaded portion and a shank portion which is arranged between the screw head and the threaded portion and has an external diameter that is smaller than the external diameter of the threaded portion, a washer incorporating a passage opening the diameter of which is smaller than the external diameter of the threaded portion, and a sleeve the internal diameter of which is greater than the external diameter of the threaded portion, whereby said combination can be produced in a simple manner but nevertheless ensures that the sleeve and the washer are held securely on the screw member, it is proposed that the sleeve have at least one projection which engages in a recess provided in the washer, wherein the sleeve is pressed against the washer in such a manner that the sleeve and the washer are connected together and held captive on the screw member.

Abstract: A screw including a sealing washer assembly and a shank which defines a screw axis and has a thread in at least a portion thereof and whose one end is provided with a head. The sealing washer assembly is disposed on the shank and includes at least one sealing washer and a reinforcing washer, said reinforcing washer having a thickness, and the sealing washer assembly having a cumulative thickness is disclosed. The sealing washer assembly is spaced, along the screw axis, at a distance from an underside of the head facing the shank, said distance being greater than the thickness of the reinforcing washer and smaller than the cumulative thickness of the sealing washer assembly.

Abstract: A fastener is provided for projection resistance welding to a panel. The fastener includes a base having a fastening element, such as a threaded stud or a nut integral therewith. Multiple projections formed integral with the base extend therefrom to engage with the panel to be welded to the panel by electric resistance welding. A groove is provided in the base facing the panel and is filled with a heat activated expandable sealer material. Upon heating of the base during the electric resistance welding, or in an oven, the sealer expands to fill and seal any gap between the base and the panel.

Abstract: A fastener assembly including an elongate fastener adapted to extend through a chamber having a longitudinal axis, a first end and a second end; a first seal disposed at least partially at the first end of the fastener to prevent leakage of fluid from the chamber; and a second seal disposed at least partially at the second end of the fastener to prevent leakage of fluid from the chamber. In a specific embodiment, the first and second seals are conical seals and a third seal is provided by a gasket.

Abstract: A fastener apparatus includes a frusto-hemispherical head portion having a flat top surface, a curved outer surface, a base portion, and a peripheral edge, with the flat top surface bearing a tool fitting. A downwardly-depending lip portion extends from the head peripheral edge and defines an annular recess in the base, the annular recess having a flat upper surface. The lip has a curved outer edge, a curved lower edge, and an inner edge having a curved lower portion and a vertical upper portion terminating in the annular recess flat upper surface. A shank portion is connected to the base and bears screw threads and a tip. An annular gasket portion is carried on the shank, and has a first uncompressed position contained radially within the annular recess, and a second compressed position extending radially beyond the lip outer edge.

Abstract: A swage collar and an internal sealing insert form a swage collar assembly used in combination with a structural fastener to prevent leakage through a connection of workpieces fastened together by the structural fastener. The swage collar has a hollow, generally cylindrical main body portion with a main central bore, and a base portion with an internal shoulder formed in the main central bore so as to form a seal receiving guide. The shaft of the fastener typically includes a threaded section and an unthreaded section, and the internal sealing insert interfaces with the threaded section and the unthreaded section of the shaft of the pin. In an alternate embodiment, the internal sealing insert interfaces with the unthreaded section of shaft of the pin.

Abstract: A power seal bolt assembly includes a bolt having a head and a shaft having an unthreaded shaft portion and a threaded portion. A washer is fixed to the bolt proximate to the head. A compressible washer retainer frictionally engages the unthreaded shaft portion and contacts the head. The compressible washer retainer includes a retainer portion having flexible legs extending inwardly into a washer retainer through aperture. The flexible legs flex to frictionally engage the retainer portion to the unthreaded shaft portion. A compressible washer portion homogenously connected to the retainer portion is oriented to contact the washer when a bolt torque is applied. The compressible washer portion includes at least one raised ring contacting the washer to create a fluid seal at the washer; and at least one partial cavity permitting the compression washer portion to axially compress upon application of the torque.

Abstract: A waterproof structure for a tightening section where a first member (1) having a screw hole (1a) with a bottom and a second member (2) having a screw insertion hole (2a) are fastened with a screw (4) that is inserted into the screw insertion hole (2a) and screwed to the screw hole (1a). The screw (4) is a flat head screw, and an annular groove (3b) is formed in the outer surface of a spacer (3) having an insertion hole where recessed circular conical surface (3a) is formed. The spacer (3) is fitted in the screw insertion hole (2a) to be in surface contact with a circular conical surface of a head of the flat head screw. The annular groove (3b) is coaxial with the recessed circular conical surface (3a).

Abstract: A brick tie anchor secures a brick veneer to an underlying structure. The anchor includes a head portion having a shaped body defining a longitudinal axis. The head includes a key portion extending from an end of the body having generally flat sides and an open central area. A shank has an upper shank portion and a lower shank portion. The lower shank portion is threaded for penetration into the underlying structure. The upper shank portion and the lower shank portion are separated from one another by a shoulder. The upper shank portion includes a knurled region extending from the shoulder. A washer is disposed at the juncture of the head portion and the shank. The washer has a diameter greater than a largest measurement across the head portion. The washer includes a resilient sealing element on the side of the washer adjacent to the shank. A driving tool for the anchor is also disclosed.

Abstract: In a gas compressor, a fastener part is fastened by a fastener member comprised of a bolt coated with a zincate bath and a gasket, any leakage from the fastener member is prevented, the gas compressor including a case 11 and a front head 12 fastened by a first fastener member 80, a housing 10 having a holding space in the interior portion, a compressor main body 60 that compresses gas held in the holding space and fastened to the housing 10 by a second fastener member 70, the second fastener member 70 being a fastener member comprised of a bolt 71 coated with a zincate bath in combination with a copper gasket 72 coated with tin.

Abstract: A composite drain plug for an automobile engine. The drain plug is made up of a hollow metal sleeve that is flanged at one end and closed at the other end. There is a core portion filling the hollow sleeve and having a head portion and a stub flange adjacent the flanged end of the sleeve. A circumferential sealing bead is bonded to the stub flange. The core portion is a glass-filled polymer and the sealing bead is made from a material which includes a cross-linked elastomer dispersed in a thermoplastic carrier.

Abstract: The fastening base plate includes a conduit for receiving the plug and support means intended to be applied to the component to be fastened. The plug comprises a shank and a head and the means for receiving the fastening plug comprise the conduit for guiding and damping the shank of the plug. The base plate moreover includes a damping cup in which the conduit, following compression by the head of the plug having a larger diameter than the conduit, and the head of the plug are intended to be housed once the plug has been driven through the base plate. The cup made of elastic material and the conduit are designed in such a manner that the cooperation between the plug shank and the conduit when the plug is driven through the base plate leads the cup to at least partially cover the head of the plug. The invention is particularly suitable for fastening wiring ducts.

Abstract: A fastener apparatus includes a frusto-hemispherical head portion having a flat top surface, a curved outer surface, a base portion, and a peripheral edge, with the flat top surface bearing a tool fitting. A downwardly-depending lip portion extends from the head peripheral edge and defines an annular recess in the base, the annular recess having a flat upper surface. The lip has a curved outer edge, a curved lower edge, and an inner edge having a curved lower portion and a vertical upper portion terminating in the annular recess flat upper surface. A shank portion is connected to the base and bears screw threads and a tip. An annular gasket portion is carried on the shank, and has a first uncompressed position contained radially within the annular recess, and a second compressed position extending radially beyond the lip outer edge.

Abstract: A threaded fastener assembly includes a male threaded component having a thread and a thread advancement stop as a compression limiter for engagement of the thread in a female threaded component. A conical spring washer establishes pre-load of an assembled joint in a variable clamp design. Prevailing torque is established by a wave thread portion of the male thread in the female threaded component.

Abstract: Vibration-damping ring insert arrangement includes a vibration-damping ring. A hollow cylinder member includes a first end, a second end, and an inner surface that is connected to an outer surface of the vibration-dampening ring. One of an outwardly extending edge and outwardly extending edge segments is arranged at the second end. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A sealing plug for blind installation in a suitable hole thereby to plug and seal the hole, which sealing plug has a sleeve (1); a stem (2) having a head at least part of which is radially enlarged with respect to the remainder of the stem (2); the stem head (4) having a shoulder, the shoulder being provided with an annular protrusion (9); the stem (2) protruding from one end of the sleeve (1), and the annular protrusion (9) abutting the other end of the sleeve (1); the stem head (4) being of a material which is harder than that of the sleeve (1) and being formed with a weakened portion (3) intermediate the head (4) and the part of the stem remote therefrom; whereby, when the sealing plug is inserted in a suitable hole, with the sleeve (1) entirely within the hole, and increasing force is applied to the stem (2) with respect to the sleeve (1), axial compression is applied by the shoulder to the sleeve material abutting it, thereby causing the annular protrusion (9) on the stem head (4) to embed into the sleev

Abstract: A sealing washer includes a connecting portion and an inner edge portion disposed radially inward of the connecting portion. The inner edge portion terminates in an edge disposed in an edge plane that is offset from the connecting portion. The sealing washer may be used, for example, to form a seal between a bolt and an elastomeric sheet, by forming a tight seal as the bolt is tightened.

Abstract: A temporary fastener includes a grip length indicator. By machining a flattened area into a body of the temporary fastener, by engraving an scale into the flattened area, and by attaching an indicator dot visible in the groove to a moving part of an internal assembly of the temporary fastener, the grip length of the installed temporary fastener may be read directly on the scale while the temporary fastener applies a clamp-up force to a structure. By using the temporary fastener of the present invention, it is possible to determine a fastener hole length while a temporary fastener is installed. Using the method for determining a fastener grip length of the present invention enables the effective determination of the correct fastener grip length for each particular fastener hole of a large structure, such as an aircraft airframe.

Abstract: A gasket comprises a ring member made of a metal material, and a covering section composed of an elastic material, wherein the covering section integrally covers side surfaces and an inner circumferential surface of the ring member respectively. First to third protruding sections, which protrude radially inwardly by predetermined lengths and which have linear side sections, are provided on an inner circumference of the covering section.

Abstract: A substantially watertight grommet having a sealing mechanism that can simultaneously form a watertight seal between the grommet and a pin received therein and between the grommet and a panel within which the grommet is received is herein described. In a preferred embodiment, the sealing mechanism is formed integrally with the head of the grommet by an overmolding process. A body of the grommet has a retention structure for securing the grommet within a bore formed in a panel and a catchment mechanism for securing a pin within the grommet. The catchment mechanism is constructed so as to permit the pin to be secured within the grommet in a plurality of positions.

Abstract: A pin-and-bushing clip connects a panel member to a body while providing a water-tight seal between the panel member and the body and between a pin head and a bushing flange. Appropriate and limited pressing force is applied to seal members even when a strong pressing force is applied to the pin head.

Abstract: A sealed wheel case for use on a vibrating aggregate processing device comprises a housing sized to hold a rotatable wheel supported on a shaft, the housing having a base, a peripheral sidewall, and a cover. The cover includes an aperture adapted to receive therethrough a driven portion of the shaft. A seal is disposed adjacent the shaft and the aperture, and an annular baffle is mounted to an inside surface of the cover and extends into the wheel case. The annular baffle is positioned on the inside surface of the cover to generally surrounding the shaft and the seal, and a plurality of attachment bolts are arranged to secure the housing to the frame.

Abstract: A screw having a primary thread extending along its shank and terminating at the screw head is formed with a supplemental thread extending between adjacent convolutions of the primary thread and also terminating at the head of the screw. The spaced termini of the two threads maintain a washer at the head in a position perpendicular to the axis of the shank of the screw.

Abstract: An integrally formed screw, such as a wood screw has a threaded cylindric stem and a head (9). At least a part (25) of the head (9) is shallowly convexly curved (25) and is provided with a screwdriver recess (26). The head (9) has an annular, shallowly concave underside (22) adapted to accommodate a relatively soft, polymeric washer (27).

Abstract: A fastener having a shank and head, the latter formed with a recess in its lower surface. A gasket is positioned in the recess, which it partially fills until the screw is employed to joint two elements and the gasket is compressed so that it fills the entirety of the recess, thereby preventing the ingress of undesirable materials.

Abstract: An integrally formed screw, such as a wood screw has a threaded cylindric stem and a head (9). At least a part (25) of the head (9) is shallowly convexly curved (25) and is provided with a screwdriver recess (26). The head (9) has an annular, shallowly concave underside (22) adapted to accommodate a relatively soft, polymeric washer (27).

Abstract: An isolated mechanical fastening system, which includes an exterior first section having a first transverse bore. The system also includes an exterior second section having a second transverse bore, wherein the second transverse bore is aligned with the first transverse bore. There is also an interior third section having a third transverse aperture. This third section is interposed between the first section and the second section and the third transverse bore is aligned with the first and second transverse bores. A fastener is positioned in the first, second and third transverse bore and is fixed to the first section. A polymeric material is positioned in the third section between the fastener and the peripheral wall of the third section.

Abstract: A unitary boundary gasket is adapted for sealing between flanged portions of two axially mated surfaces of rigid metallic members, such as between the bottom of an engine block and an associated engine oil pan. In one preferred form, the gasket has a rectilinearly shaped annular body, and is formed of a one-piece radially outermost rigid metallic carrier having a first axial thickness, and adhesively bonded to a one-piece radially innermost elastomeric sealing body. The sealing body is bonded to the metallic carrier at the radially innermost edge of the carrier. The sealing body includes a plurality of spaced elastomeric apertures adapted for accommodating passage of bolt members for fastening said flanged portions together about the gasket body. The apertures are designed for sealing against leakage of fluids between said apertures and said bolt members. For this purpose, each aperture includes at least two axially spaced integral sealing lips.

Abstract: A synthetic resin grommet is provided which has a substantially cylindrical body having a flange portion and a head portion. The flange portion has an inverted dish-like shape and includes an elastically deformable vane-like shaped rim portion. Stopping claws are arranged on an outer circumference of the cylindrical body such that tips of the claws face the flange portion, and an elastically compressible annular rib is formed on top of the head portion of the cylindrical body. An upper portion of the head portion has a tapered face, and the annular rib is formed above the tapered face. With this structure, an inexpensive synthetic resin grommet is provided which exhibits sealing facility when it is fitted to a body of a car or a home electric appliance and when a part is attached thereto through the grommet, and which accurately and securely prevents the entrance of water into the body without requiring intricate procedures such a fitting of a sealing annulus.

Abstract: A sealed wheel case for use on a vibrating aggregate processing device comprises a housing sized to hold a rotatable wheel supported on a shaft, the housing having a base, a peripheral sidewall, and a cover. The cover includes an aperture adapted to receive therethrough a driven portion of the shaft. A seal is disposed adjacent the shaft and the aperture, and an annular baffle is mounted to an inside surface of the cover and extends into the wheel case. The annular baffle is positioned on the inside surface of the cover to generally surrounding the shaft and the seal, and a plurality of attachment bolts are arranged to secure the housing to the frame.

Abstract: A sealed wheel case is provided for use with a vibratory device for vibrating aggregate material. The vibratory device includes a frame and a rotating shaft extending transversely across the frame, with the shaft having a wheel. The sealed wheel case includes a housing having a base, a peripheral sidewall, and a cover. The housing is sized to receive therein the wheel and is further adapted to house therein a quantity of lubricating oil for lubricating the wheel. A plurality of attachment bolts are provided for securing the housing to the frame. Each of the attachment bolts includes a shank, an inner end disposed within the wheel case and having an inner contact surface, an inner control washer disposed between the inner contact surface and the housing base, with the inner control washer having a first predetermined thickness.

Abstract: Disclosed herein is a container closure sealing washer pre-assembly (40) comprising at least one part (42) of one material integrally formed with another part (44) of another material, preferably both materials are resiliently deformable, elastomers, with said one material being capable of greater compression than said another material and being a nitrile rubber and said another material being more inert to or compatible with given container contents than said one material and being an ethylene-propylene-diene-monomer rubber; the sealing washer may be used in combination with an insert (10) having a body (12) with a radially extending flange (14), the sealing washer being stretched about and thereby retained on the flanged insert and assuming a cylindrical to frusto-conic shape with at least said one part tightly in contact with the insert body and the said another part proximate to or contacting the insert flange; and the combination may be included in a closure for a container (22) with the flanged insert l

Abstract: A method of attaching a vibration floating washer with a sleeve to a heat insulating plate including an attaching-bolt insertion hole. The method comprises: disposing the metallic damping element on an inner side and a peripheral edge portion of the attaching-bolt insertion hole; inserting a male sleeve of a male washer and a female sleeve of a female washer respectively into the bolt insertion hole from both sides of the heat insulating plate; and fitting and fixing the male washer and the female washers to each other with a fitting portion provided on at least one of the male sleeve and the female sleeve so that the heat insulating plate is maintained in a state of noncontact with both the male washer and the female washer.

Abstract: A sealing nut is disclosed for sealed engagement with a workpiece. The sealing nut has a nut body having a lower face, and a bore extends through at least a portion of the nut body. A groove is formed in the lower face, the groove having a side wall which extends upwardly from the lower face. At least a lower portion of the side wall slants outward from a remotely disposed axis of the bore as the side wall extends upward from the lower face. A sealing element, such as an O-ring is disposed within the groove. The sealing element has an outer diameter greater than the diameter of the groove at the lower face of the nut body so that the sealing element must be compressed slightly to be fitted within the groove and so that the groove removably retains the sealing element in place without the need for a sealant or glue.

Abstract: A connection element (1) between a support (2), specifically a body part of a motor vehicle, and a plate element, specifically a door or wall facing. The connection element (1) includes an upper piece (3) attachable to the plate element and a lower piece (4) connectable with a support (2). A neck-shaped intermediate region (5) is provided between the upper part (3) and the lower part (4). The intermediate region (5) is equipped with locking elements (10) and penetrates into a support opening (7) embeddable contact piece (12). The intermediate region (5) above the support (2) is surrounded by a casing part (15), which is lockable with the locking elements (10) and the contact piece (12). A sealing element (20), which acts upon the surface of the support (2), is arranged between a casing piece (15) and a contact piece (12).

Abstract: A double seal nut having a wrenching element to which a torquing force is applied, an internal bore running longitudinally through the wrenching element and having a set of screw threads to be mated to a correspondingly threaded bolt by which to hold together a pair of opposing metal workpieces, and a washer base having a bearing surface to be seated flush against the faying surface of a first of the pair of workpieces. The double seal nut includes a Teflon seal ring located within the internal bore to engage the threads of the bolt and thereby block the leakage of fluid in a longitudinal (i.e. axial) direction along the bolt.

Abstract: A fastener is disclosed for sealed engagement with a workpiece. The fastener has a head having a lower face, and a shank extends from the lower surface of the head. A groove is formed in the lower surface, the groove having an inner wall and an outer wall. The inner wall has a proximal end which is adjacent the lower surface of the head and which is disposed radially remotely from the shank. A sealing element, such as an O-ring, is disposed at least partially within the groove. The groove may be configured so that a distal end of the inner wall is near to the axis of the shank than is the proximal end of the inner wall.