Abstract: A two piece, resilient plastic assembly for decoratively covering the head of an installed fastener such as a screw or the like. The assembly comprises a resilient base member adapted to be held by the fastener or screw upon a planar portion of a workpiece. A resilient anchor member includes a planar, flange like base of generally circular cross section having a central orifice defined therein through which a screw or fastener passes, and an integral peripheral rim having an external surface upon which a plurality of radially spaced apart petals are integrally formed. A cup-like, resilient plastic cover plate adapted to be snap-fitted upon the anchor includes a generally convex top portion and a peripheral downwardly projecting rim. The cover plate rim includes a snap fit groove into which the anchor petals are received.

Abstract: An impact resistant assembly is provided which comprises a longitudinal, molded shaft composed of a thermoplastic material and having screw threads at one end thereof and a planar head plate at the opposite end. Adjacent to the head plate is an upper cylindrical shaft section upon which is securely positioned a metal collar, which is preferably provided with an enlarged metal rim, to support the head plate and adjacent cylindrical shaft section against substantial deformation during the subsequent molding thereon of a resilient, head member which is formed from a thermosetting material. It has been found that the combination of the planar head plate and the adjacent metal collar is essential to form the desired impact resistant assembly having the resilient, impact resistant head member molded thereon. The impact resistant assemblies of this invention are particularly suited for use in bowling alley backstops which are subjected to repeated and severe direct impacts by bowling balls of high mass.

Abstract: A mine roof bolt of the type used in supporting the ceiling or roofs of underground mine passages is disclosed. The mine bolt includes an elongated shaft, threaded on one end with a stop member in the form of a hemispherical head provided at the other end. A bolt head is force fitted onto the shaft into abutment with the outer stop member. Similarly, a washer is also force fitted onto the shaft and into abutment with the bolt head. An inner stop in the form of an annular bead is formed on the shaft adjacent the underside of the washer.

Abstract: A bolt formed of two separate members, one of the members defining the shank and wrench-engagement portions of the bolt, the other member defining a work-engagement washer-flange surface. This two-member construction minimizes the amount of upsetting required to form the wrench-engagement portion of the bolt, with resulting reduction in total energy costs to form the bolt. The two-member construction provides other advantages, such as possible use of harder, higher tensile strength materials having improved wear characteristics, the elimination of a potential stress riser condition at the juncture of the shank and head portions, and possible use of different materials for the shank and head flange areas of the bolt.

Abstract: The present invention is directed to a method of manufacturing a support fixture for securing thermal insulation, such as glass wool batts and the like, to air conduit ducts forming parts of heating and air conditioning systems. The device comprises a metal pin weldingly connected to a planar sheet metal blank, the rear surface of the blank carrying a double faced adhesive tape, the rear surface of which is adapted to be adhesively connected to a duct. In accordance with the method of making the fixture, an improved adhesive connection is obtained between the sheet metal member and the adhesive tape by applying the tape to the blank while the blank is hot as a result of effecting the welded connection between the blank and the pin.

Abstract: A hose clip wherein the housing is made of an originally flat sheet metal blank and has a tubular section for the shank of a rotary screw mating with one end portion of a band whose end portions extend through the tubular section between the thread on the shank and a flat bottom wall of the tubular section. The head of the screw has a tubular portion which surrounds one end portion of the tubular section so as to hold such end portion against radial and/or axial movement relative to the screw whereby the head cannot penetrate into and cannot expand the tubular section while it rotates in a direction to tension the band around the end portion of a hose or an analogous structure. The tubular portion may be integral with the remaining portion of the head, it can be bonded to such remaining portion or it may be rotatably mounted on the shank adjacent to the remaining portion of the head.