FASTENING FLAT-MEMBERS STACK

An assembly for fastening a compressible layer of insulation includes a threaded screw projecting through the center of a flat circular disk of a resilient plastic material. A central hub on the disk is received between the head and a flange spaced below the head to hold the disk adjacent the head,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JOHN SPIBEY, ERNEST W. REINWALL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GUTTERS HEATING LIGHTING MECHANICAL ENGINEERING ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An assembly for fastening a compressible layer of insulation includes a threaded screw projecting through the center of a flat circular disk of a resilient plastic material. A central hub on the disk is received between the head and a flange spaced below the head to hold the disk adjacent the head, the hub being defined in part by resilient fingers which flex outwardly to let the flange pass through the hub as the screw and the disk are assembled together. An annular surface is formed on the underside of the disk at the periphery thereof to engage the insulation and ribs which decrease in width are formed on the underside of the disk and project radially from the hub to the peripheral surface so that an uplift force causes the disk to flex upwardly progressively from the periphery toward the center.