US 6,341,467 B1 · Internal reinforcement for hollow structural elements

Abstract

A reinforced beam has an internal I-beam structure with opposed adhesive foam layers. The foam layers are extruded, cut to length and placed on opposed surfaces of the I-beam. When the reinforced beam is heated. The adhesive layers expand to secure the I-beam in place.

Claims0

Dependent claims

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Facts

Application

09/440,746Filed 16 Nov 1999

Granted

29 Jan 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

B29C 44/18
Incorporating or moulding on preformed parts, e.g. inserts or reinforcements: filling preformed cavities
B62D 29/002
Characterised by combining metal and synthetic material: a foamable synthetic material or metal being added in situ
E04C 3/29
Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces: built-up from parts of different material, i.e.…
E06B 3/222
With the frame member having local reinforcements in some parts of its cross-section or with a filled cavity: with internal prefabricated…

Internal reinforcement for hollow structural elements

Life of this patent

Abstract

Claims0

Internal reinforcement for hollow structural elements

Life of this patent

Abstract

Claims0