An improved plug for an aperture such as the paint drain hole in an automotive body comprises an integral flat body having two opposed aligning protuberances and two opposed engaging protuberances formed adjacent the edge of the body. At least one engaging protuberance is angled radially outwardly and has sufficient spring qualities to allow a snap mount of the plug into the aperture.
A radio frequency cover and complementary shaped hole that securely fit together to provide electro magnetic and electrostatic shielding of adjustment access holes. The cover preferably is cold headed and the complementary hole is either stamped, machined or cast for inexpensive mass production. Each cover preferably has a socket or slit on its top surface to receive and be guided by a tool, which also secures the cover in an access hole within a second access hole in radio frequency and/or electronic systems. The covers include self tapping thread formers to further reduce manufacturing time and costs.
A removable covering plate for a hole in a computer housing is substantially rectangular with outwardly protruding elements formed along the edges of the plate. The leading edges of the individual elements are bent towards the central axis of the covering plate. The covering plate can be fastened to a hole in a computer housing with the protruding elements in engagement with the edges of the hole.
A two-component, heat reactive patch particularly useful for sealing gage and drain holes in automobile bodies which comprises an ionomer component and an olefinic/elastomeric component. The ionomer component contains an ionomeric copolymer of ethylene and an .alpha.,.beta.-ethylenically-unsaturated C.sub.3 -C.sub.8 carboxylic acid, a metallic coagent and a filler and, optionally, a non-ionomeric copolymer of ethylene. The olefinic/elastomeric component contains an uncrosslinked elastomer, a multifunctional acrylic monomer, and a free-radical curing agent.
A device for child proofing a cassette player includes a front plate portion of elongated rectangular configuration and a pair of clip members which are integrally attached to opposite ends of the plate portion. The clip members are of generally U-shaped configuration and they are receivable in resiliently biased engagement with opposite extremities of a cassette port in a cassette player for releasably securing the front plate portion in obstructing relation with respect to the cassette port.
A plug for closing a hole in a panel includes an enlargement for inserting into the hole and a flange for engaging the panel. Activatable adhesive on the flange adheres the plug to the panel upon activation. Segments of adhesive are applied to the enlargement to wedge the plug in the hole, for holding the plug in position prior to activation of the adhesive.
