# US 4,397,902 A · Construction-element

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- Number: US 4,397,902 A
- Document ID: US4397902A
- Status: Granted
- Kind: A
- Application number: 05/973,707
- Filed: 1979-03-21
- Granted: 1983-08-09
- Earliest claimed: 1977-12-27
- Assignees: Ronald D. Resch
- Inventors: Ronald D. Resch
- Web page: https://patentgrep.com/patent/US4397902A

## CPC

- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 15/01: all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)}
- B32B 27/08: of synthetic resin
- B65D 85/32: for eggs
- B32B 2038/042: {Punching}
- B32B 2311/00: Metals, their alloys or their compounds
- B32B 2553/00: Packaging equipment or accessories not otherwise provided for
- Y10T 428/24174: including sheet or component perpendicular to plane of web or sheet
- Y10T 428/24669: Aligned or parallel nonplanarities
- Y10T 428/24678: Waffle-form
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A construction element of folded sheet material having a repetitive pattern of similarly shaped geometric figures. The tops of the figures lie in one plane and the troughs in a second parallel plane. Four tops are situated around one trough and are connected with it through four angled surfaces.

## Claims

### Claim 1

A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by four inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges which are unconnected such that the unconnected side edges of said inclined flat surfaces define voids located between said tops and troughs which define rectangular openings in said construction element in a direction normal to said first and second planes.

### Claim 2

A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges, said side edges of said inclined surfaces being connected along their length to respective triangular flat surfaces which are perpendicular to the inclined surfaces to which they are connected and perpendiular to said first and second planes, a pair said triangular flat surfaces being edge connected and defining, with another pair of edge connected triangular flat surfaces, an opening in said construction element in a direction normal to said first and second planes.

### Claim 3 (depends on 1, 2)

A construction-element according to claims 1 or 2, wherein said troughs and tops respectively have an opening at their corners.

### Claim 4 (depends on 1, 2)

A contruction-element according to claims 1 or 2, wherein the tops and troughs are square surfaces.

### Claim 5 (depends on 1, 2)

A construction-element according to claims 1 or 2, wherein the tops have a smaller area than the troughs and the inclined flat surfaces between the tops and troughs are in the form of a trapezoid.

### Claim 6 (depends on 1, 2)

A construction element according to claims 1 or 2, further comprising two flat plates respectively connected to the tops and troughs.

### Claim 7 (depends on 6)

A construction element according to claim 6, wherein said plates are curved.