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US 4,406,033 AGranted
Fastener for attachment of a continuous article to a support
AssigneeIllinois Tool Works Inc.
InventorsLisa E. Chisholm, Richard F. Daubert
Life of this patent
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AssigneeIllinois Tool Works Inc.
InventorsLisa E. Chisholm, Richard F. Daubert
Estimating the term…
A multi-part fastener assembly for attachment of a carpet-like member to a support. The fastener is designed to minimize snagging and/or scraping-type of engagement with objects that come in contact therewith. The exposed fastener part is an annular member which has a radiussed outer edge from which a plurality of rigid projections extend. The projections are designed to be able to penetrate the carpet-like member and a radially extending flange of another fastener part and be folded to fixedly position the fastener relative to the carpet-like member. The radially extending flange has areas of reduced thickness to ease the projections therethrough and is deflected to create an annular mounding of the carpet-like member around the annular member to cooperate therewith in increasing the resistance of the fastener to snagging type of engagement.
A multi-part fastener adapted to releasably attach carpet-like and panel-like members to a support, said multi-part fastener comprising a plurality of fastening elements including at least first and second fastener elements, said first fastener element includes an annular coupler having a top portion and a plurality of rigid projections extending from the outer edge of one side of said top portion, said top portion having means integrally associated with the outer edge thereof for limiting snagging-type of engagement of objects that contact therewith, said second fastener element having fastening means extending from one side thereof for attachment to a support and a generally annular and radially extending flange with a non-constant outer diameter, whereby rotation of said first and second fastener elements relative to the carpet-like member is inhibited and said fastener fastening means is engageable with said support to releasably attach said carpet-like member thereto, said rigid projections of said coupler adapted to penetrate the carpet-like member and the radially extending flange of said second fastener and be folded under said flange to lock the carpet-like member between said first and second elements.
A multi-part fastener adapted to releasably attach carpet-like and panel-like members to a support, said multi-part fastener comprising a plurality of fastening elements including at least first and second fastener elements, said first fastener element includes an annular coupler having a top portion and a plurality of rigid projections extending from the outer edge of one side of said top portion, said top portion having means integrally associated with the outer edge thereof for limiting snagging-type of engagement of objects that contact therewith, said second fastener element having fastening means extending from one side thereof for attachment to a support and a radially extending flange, said rigid projections of said coupler adapted to penetrate the carpet-like member and the radially extending flange of said second fastener and be folded under said flange to lock the carpet-like member between said first and second fastener elements, said radially extending flange of the second fastener element includes an area of a predetermined thickness, the radially extending flange includes a plurality of elongated apertures therein corresponding to and registrable with the plurality of rigid projections, the area around each said elongated aperture in the radially extending flange is inclined to guide each corresponding one of said rigid projections into one of the apertures, and said second fastener element is generally annular with a non-constant outer diameter, whereby rotation of said first and second fastener elements relative to the carpet-like member is inhibited.
Dependencies are inferred from the claim text.