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 seal nut assembly includes a locking member, a bearing member, and a resilient member. The locking member defines a threaded aperture. The bearing member has an inner annular portion and an outer annular portion which radially circumscribes the inner annular portion. The inner annular portion comprises a first lower surface and defines an opening. The outer annular portion comprises a second lower surface which is stepped with respect to the first lower surface. The bearing member is disposed adjacent to the locking member such that the opening is aligned with the threaded aperture. The resilient member is attached to the second lower surface of the bearing member adjacent to the outer perimeter. A vehicle including a seal nut assembly and a method of manufacturing a seal nut assembly are also provided.

Abstract: A sheet of deformable adhesive sealant material having a release material formed thereon, a plurality of pre-cut shaped members of different diameters being formed in the sheet. A user drills a bolt or screw hole into parts to be attached for the selected fastener and the surfaces to be attached are then cleaned and dried. The user then removes a selected shaped member from a release sheet and applies it to the part over the hole and pushes the fastener through a centering cut formed on the shaped member into the part to be attached. The fastener becomes coated with rubber adhesive sealant when pushed through the shaped member and, as a result, the sealant coats the fastener threads while at the same time being embedded under the fastener head.

Abstract: An adapter assembly having an intermediate ring and a screw-in part for a fluid plug-in system. The adapter assembly includes an externally threaded portion for threading into a threaded bore and an actuating shoulder. A receiving groove is formed in the transition between the actuating shoulder and the externally threaded portion with a first sealing ring is disposed therein. The intermediate ring fits onto the externally threaded portion and has opposing axially spaced annular portions. A first annular portion cooperates with the receiving groove and the actuating shoulder to form a first sealing chamber for the first sealing ring. A second sealing seat of a second annular portion facing away from the actuating shoulder cooperates with a surrounding surface adjacent to the bore and the externally threaded portion to form a second sealing chamber for the second sealing ring axially spaced from the first sealing chamber.

Abstract: The metal sheet of the invention includes means for fixing it to a support and a seal gasket laid out along these means. The fixing means comprise at least one lumen provided on the metal sheet by punching, with a cavity for receiving a head of a fixing component corresponding to a metal sheet portion protruding on the opposite face and a washer for transferring stresses between the metal sheet and the support on said protruding portion.

Abstract: A fibrous microencapsulated washer is provided for sealing and retaining a fastener. The fibrous microencapsulated washer includes a substrate and a coating of a microencapsulated material on the substrate. The fibrous microencapsulated washer includes an aperture extending therethrough to receive a fastener, whereby a radial installation of the fastener causes the microencapsulated material to react on the substrate to form a seal and to adhesively secure the fastener to a workpiece.

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 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 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 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: The invention relates to a fixing element (10) for double pane insulating glass (42, 44), which is anchored by expansion of an expansible ring (16) in a drilled hole having a conical undercut in an outer glass pane (42) of the insulating glass (42, 44). The invention provides for the fixing element (10) to be sealed with two sealing rings (30, 40) on both sides of an inner glass pane (44) of the insulating glass (42, 44) and additionally for an injection opening (41) to be provided, through which a sealing compound, for example, silicone, can be introduced into a gap at the point at which the fixing element (10) passes through the inner glass pane (44) in order to provide an extra seal at the passage point. The fixing element (10) ensures a permanent seal of the passage point.

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 Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.

Abstract: A fastening element which is designed for driving-in a constructional component, includes a stem (11) adjoined, at it's opposite sides, by a load application section (13) and a tip (12) facing in the setting direction of the fastening element, and a prestress member (20) having a force-introducing section (21) engaging the stem (11) and/or the tip (12), and a bearing surface (22) remote from the load application section (13) and provided with an elastic layer (17) having an opening (18) a wall (19) of which is radially spaced from an axial projection of the stem (11).

Abstract: A fluid-tight, adjustable and self-locking threaded connection assembly comprising a nut and a bolt. The nut which is adapted to be fixed to a first structural member has a bore comprising a threaded portion and a smooth cylindrical portion. The bolt which is adapted to be removably connected to a second structural member has an intermediate portion provided with a plurality of circumferential sealing lips. The sealing lips are dimensioned with respect to said smooth cylindrical portion of the nut bore such that it is slidingly urged against said smooth portion of the nut bore when the bolt is adjusted relative to the nut. As a result thereof the threaded connection assembly is fluid-tight and self-locking while being adjustable.

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 bushing and sealing ring assembly including a sealing ring and a bushing. The sealing ring has a cylindrical base with an external thread and a reduced diameter, upstanding cylindrical sleeve extending co-axially from one end of the base with a predetermined height, an upper outer edge and an upper inner edge. The base and the sleeve are provided with a circular central aperture for receiving and retaining a first cylindrical member. The bushing has a cylindrical depending sidewall with an internal thread and a circular central aperture for receiving the sealing ring and a second cylindrical member and a top plate extending transversely partially inwardly into the central aperture to sealingly receive the upper outer edge of the sealing ring and having a predetermined thickness.

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: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: A variable pressure washer has two interlocking channel rings separated by a channel and retained by a captive set of fasteners. Within the channel between the rings are multiple rows of springs having at least two different spring moduli. The washer is particularly suited for use with a polar boss assembly secured to a bulkhead of a pressure vessel such as of propellent tank dome structure where the washer allows for the substantially uniform deflection of multiple O-rings as affected by the curved structure.

Abstract: An assembly unit includes at least one component and at least one screw including a shank having an outer diameter and at least partially including a thread. The head of the screw is designed and arranged to rotate the screw. A supporting surface of the screw faces the component. The component for each screw includes a through hole having a diameter. At least one bush is associated with the at least one screw, and it is designed and arranged to be insertable into the respective through hole. The bush is made of plastic material, and it is designed and arranged to be fixedly connected in the through hole resulting in elastic deformation of the bush. The inner diameter of the bush is slightly more than the outer diameter of the shank. The supporting surface is designed and arranged to operatively contact the component after assembly without contacting the bush to transmit an axial force. The bush, the screw and the component are designed and arranged to be captively connected.

Abstract: A seam plate for use in connection with securing membrane sheets to underlying roof decking substructure comprises a substantially rectangular plate having a central aperture for receiving a bolt fastener. Upstanding rib structure is provided upon the plate so as to provide different regions thereof with different rigidity, flexibility, and bendability properties. The rib structure can have, for example, a substantially diamond-shaped configuration or an X-shaped configuration for respectively providing corner regions of the plate with increased or decreased flexibility. A plurality of downwardly extending projections, having substantially V-shaped cross-sectional configurations, are provided upon the underside of the seam plate so as to engage the membrane sheets and retain the same at their desired locations upon the underlying roof deck substructure assembly.

Abstract: A stress plate or seam plate for use in connection with securing membrane sheets to underlying roofing decking substructure comprises a circular disk having a central aperture for receiving a screw fastener. A plurality of concentric ribs are defined between the central aperture and the peripheral edge of the plate for providing reinforcing and bending or flexibility characteristics to the stress plate or seam plate, and in accordance with the principles and teachings of the present invention, a plurality of circumferentially spaced, downwardly extending projections having substantially V-shaped cross-sectional configurations are provided upon the underside of the seam or stress plate so as to engage the membrane sheets and retain the same at their desired locations upon the underlying roofing deck substructural assembly.

Abstract: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: An attachment implement, for use in connection with the mounting of a relatively thin, highly dense insulation panel upon an underlying structural substrate, comprises a washer plate portion and an integral lower body portion which has a substantially inverted dome-shaped or bell-shaped configuration. The axial depth dimension of the implement is relatively shallow or small, and the inverted dome-shaped or bell-shaped configuration advantageously distributes or disperses the compressive forces attendant the mounting of the insulation panel upon the underlying structural substrate whereby desired compression of the insulation panel, and its rigidifying or strength-enhancing membrane, occurs without tearing or cutting of the insulation panel and its membrane so as not to adversely affect the strength, rigidity, and structural integrity of the insulation panel.

Abstract: A thread covering assembly for threaded shafts of food equipment components such as scale adjustment feet includes at least one thread cover positioned around the threaded shaft and moveable along the length of the threaded shaft for preventing the threads of the shaft from being exposed to the environment.

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 sealing fastener, which expands by the insertion of preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The fastener has further an elastic body, especially a thermoplastic elastomer, molded at least on the lower side of the head by insert injection molding. The elastic body does not contain plasticizers which may be harmful to other plastics (such as polycarbonate and ABS for example) coming in contact with the fastener, all its surfaces are well defined, has well defined properties, and its dimensions are characterized by narrow tolerances.

Abstract: The attachment member includes a bore (6) for receiving a fastener (10), a front support surface (3) intended to be placed against the component (20) to be fixed, and an extension (8) for positioning the attachment member and absorbing the shock caused by the fastener (10) striking the attachment member upon fixing.

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: 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: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head also has an oblong hole in which the expanding body engages for securing one object to another object. The oblong hole represents a plurality of regular generally round holes, so that it becomes easy for the fastener to be located in difficult positions of the objects to be connected. The oblong hole has sides on different planes, and each side has an edge. Preferably, at least one of the two edges contains arcs for better guidance of the expanding member. Additional engagement may be provided at lower portions of the fastener for improving pulling force and/or prevailing torque. Further, an elastic body may be integrally molded at least at the lower side of the head of the fastener, and preferably throughout the head of the fastener.

Abstract: A connecting assembly is disclosed having a first component defining an opening, a second component adapted to be retained together with the first component and a connector component made of a superelastic alloy. Relative motion between at least two of the components causes a super-elastic activation of the connector wherein the activation simultaneously retains the components together with the connector interposed jointly therebetween. Preferably the connector component is pre-assembled to one of the first and second components. More preferably, the first component is pre-assembled with the connector and the second component is moved relative to the pre-assembled components to activate the superelastic alloy of the connector. Alternatively, the second component is pre-assembled with the connector and the first component is moved relative to the pre-assembled components to activate the superelastic alloy of the connector.

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 forged, integral bolt (20) has a head, a tapered neck (22), a shank, and a plurality of plastically deformable, raised, contact surface portions (31) uniformly positioned adjacent the neck and extending axially and radially of the bolt for spreading a load applied to the bolt. Each raised portion has a base portion contiguous the neck, and an elongated, V-shaped, ridge portion raised above the base which is constructed to contact and fay with a congruent wall portion of a bolt bore (12) in a support structure. The bolt may have various shapes. (FIGS. 1-3, 10-23). The ridges may extend up onto the sides of the head. (FIG. 9). The ridge portions and base portions may be integrally forged as a pair of symmetrical, self-aligning, inserts (40) separate from, but mating with, opposite sides of the neck when a load is applied to 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.

Abstract: A sealing ring having a base body manufactured of thermoplastic synthetic resin material and a sealing body of elastomeric synthetic resin material. The two bodies are molded permanently on one another and each possess a sealing section, which serves for producing a sealing action at sealing faces of two oppositely placed components which are to be sealed in relation to each other.

Abstract: An improved capped wheelnut of the type including a nut body having a central threaded aperture and a pair of ends, one end being adapted to engage a wheel, and a cap for said nut body at the other end. The cap has an end wall and a continuous side wall which terminates intermediate the ends of said nut body in an annular edge, an insulating washer constructed of material having low heat conductivity, said washer being of annular ring shape and positioned on said nut adjacent the lower end of said cap, a portion of said cap being engaged with said washer so as to maintain said washer in engagement with said nut body so that it will not fall off the nut.

Abstract: Round spring wire (20) FIG. (1) formed into concave tri-elliptic wire (22) FIG. (2-A) and processed to include reversing wave crests (24) FIG. (3-A) having not opposed crest contact (28) FIG. (3-B) requires forming into ring or shape and heat treated as completed elastic form of locking ring device. Unique featured locking of joints and locking of standard fasteners is provided by continuous elastic internal beaming in combination with proportional penetration of joint surfaces by a multitude of relatively sharp reversing wave crests, which are always erect. Useful form is readily shaped and size configured in flat plane such as essentially round form of locking ring device (34) FIG. (4). The locking ring device is used for locking joint by curl formed flange (47b) FIG. (5-B), for plural use in locking of joint by single formed rivet (59) FIG. (6-B), for plural locking of joint by single screw thread fastener such as socket cap screw (78a) FIG.

Abstract: A fastening screw is used to hold a hollow body against a base body. To assure that no dirt can get into the hollow body, sealing between the fastening screw and the hollow body is necessary. The fastening screw has a bevel (10s) coated with a relatively soft coating at the transition between the screw shaft and the screw head. When the fastening screw is tightened, one edge of the hollow body digs into the coating, thus assuring a secure seal. The fastening screw is intended in particular in a brake system for securing a motor housing to a pump housing.

Abstract: A sealing fastener, such as a sealing rivet, is disclosed for sealing engagement with a workpiece. The sealing fastener has a head and a shank extending from a lower surface of the head. An aperture passes through the head and shank, and a mandrel and collar fit within the aperture. A sealing member, such as an O-ring is disposed between the collar and the mandrel. The head of the sealing fastener may also have a groove formed therein and may have a sealing member disposed at least in part in the groove. In use, the rivet is placed through an opening in the workpiece, and a lower portion of the shank is collapsed so to form a lower head and so that the upper and lower heads engage the workpiece. The sealing member is compressed between the collar and a wall of the aperture, and the collar and mandrel are placed in locking engagement to maintain the sealing member in a compressed state.

Abstract: A blind setting rivet assembly capable of permanently fastening one or more sheet metal work pieces or the like together is disclosed. The rivet assembly may be self tapping and may also provide a hollow cylindrical threaded bolt head onto which a nut may be affixed to provide a means to removably attach other work pieces, components or the like. The rivet assembly comprises a rivet body having a hollow tubular sleeve and an enlarged flattened head. The rivet body surrounds a mandrel which may have a weakened area of reduced diameter to allow detachment of the mandrel shaft following application of sufficient axial force to the shank. This application of force sets the rivet by causing a tapered shoulder section of the mandrel to deform the rivet sleeve. The mandrel shank may be terminated in a screw tip. This screw tip punctures, spreads, and self-taps an aperture in the work pieces through which the rivet sleeve passes.

Abstract: A protective ring for resisting contact corrosion for a connecting element such as a screw which can be fitted to a component and which has a bearing surface for bearing against the component includes a sealing ring of plastic material. The sealing ring is carried on the connecting element in such a position that before the connecting element is tightened the sealing ring provides a bead which projects in the axial direction beyond the bearing surface and which, upon tightening of the connecting element, can be permanently axially braced relative to the component to form an annular sealing surface which extends around the contact surface between the connecting element and the component. The sealing ring has a protective sheathing for the connecting element, which projects in the opposite direction to the bead.

Abstract: A sealing washer assembly includes a threaded fastener, a nut and a resilient member attached to the nut and washer or screw and washer. The resilient member, typically a polymer of propylene, ethylene or other suitable material, is oversized with respect to the nut. The assembly is useful for connecting one member to another via an opening in the first member, and particularly, provides a system for sealing the opening against the passage of fluid, such as air.

Abstract: A locking nut for use with a bolt for connecting members together. The bolt has a head and a shank. The members are disposed between the head and the nut when the locking nut connects the members together. At least a portion of the shank has external threads formed thereon. The locking nut includes a shell having a bore extending therethrough for receiving the bolt. At least a portion of a wall of the bore has internal threads formed thereon. The shell is sized and shaped to permit rotation of the nut on the bolt for tightening the nut on the bolt. The nut further includes a generally tubular insert sized for being received in the bore of the shell. The insert has a threaded portion having an outer surface with external threads for threaded engagement with the internal threads of the shell, and an inner surface with internal threads for threaded engagement with the external threads of the bolt. The insert includes a locking portion constructed for interlocking the insert with the shell.

Abstract: A controlled atmosphere incubator having an interior chamber surrounded by a heated water jacket. A glass access door of the chamber is directly heated by a clear, electrically conductive coating. The door is sealed against the perimeter of the opening by a readily replaceable gasket and is field reversible due to unique hinge mounting assemblies. An easily accessed blower assembly is located within the chamber and includes a HEPA filter readily replaceable by the user from within the chamber. A filtered air exchange system is provided for limiting the maximum level of humidity in the chamber. The incubator control maintains constant power output from the blower motor so that the heat output of the motor is also constant. A voltage compensated temperature control is also provided for the heaters associated with the water jacket. Compensation for environmental conditions inside the chamber is also provided by the control for producing more accurate readings of carbon dioxide levels.

Abstract: An attachment plate is used to attach insulation panels to building substrates using internal combustion cordless nail setting tools loaded with collating strips for feeding and holding nails in the tool magazine. The attachment plate has a washer and an annular chamber at a first end. A wall of the annular chamber is defined by a band of fingers. The interior of the attachment plate has a recess. The attachment plate second end has flexible tabs. The attachment plate is placed on a pilot and against a flange of a tool adapter. The attachment plate is pushed into the insulation panel such that the tool muzzle bends the fingers and passes through the same. When the tool is fired, a nail and nail collating ring are forced into and captured within the recess. The tabs bend against the substrate if the insulation panel is of less than nominal thickness.

Abstract: A means for temporarily securing a tarpaulin or like fabric having a series of grommeted holes about its periphery. The means comprises a double headed nail with an apron or apron frictionally engaging the nail immediately below the second or lower head.

Abstract: A very simple and economic method for quickly repairing a puncture in a vehicle tire utilizes a screw having a concave slot beneath its head, with the circumference of the head portion cooperating with the slot to provide an edge which slightly cuts into the surface of the tire when the screw is inserted into the puncture. A sealing material such as an adhesive rubber is placed in the slot and seals the top of the puncture when the screw is threaded into the puncture hole. The design provides easy, quick, efficient and very low cost repairs for a puncture in a tire, not only for temporary repairs but for long term repairs. The design is simple and includes only two parts: a screw having a spiral thread by which the screw is affixed in the tire, and a concave slot under the screw head with the sealing material such as an adhesive or sticky rubber which is secured in the slot. The screw body is fixed in the tire hole and the head presses the sealing material into the hole.

Abstract: A sealing fastener, which expands by the insertion of preferably a screw. The fastener comprises a substantially flat and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The fastener has further an elastic body molded at least on the lower surface of the head. A large unexpected improvement is achieved by having the elastic body also molded in the gap between the upper surface and the lower surface.