# US 2016/0258458 A1 · Kraft dovetail and slot assembly

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- Number: US 2016/0258458 A1
- Document ID: US20160258458A1
- Status: Published application
- Kind: A1
- Application number: 15/154,923
- Filed: 2016-05-13
- Published: 2016-09-08
- Earliest claimed: 2014-02-12
- Inventors: Matthew E. Gerstle
- Web page: https://patentgrep.com/patent/US20160258458A1

## CPC

- F16B 12/125: {using mortise and tenon joints}
- A47B 13/00: Details of tables or desks (drawers A47B88/00; feet for furniture in general A47B91/00)
- A47B 13/086: {Table tops provided with a protecting coating made of veneer, linoleum, paper or the like}
- A47B 47/042: {Panels connected without frames}
- A47B 47/06: made mainly of cardboard, textile, paper, or the like, e.g. with separate frame of other materials {(hand-folded and specially adapted for display A47F5/116)}
- A47C 4/021: {connected by slotted joints}
- A47C 5/005: {of paper, cardboard or similar pliable material}
- A47C 5/14: characterised by the use of laminated wood
- A47C 11/00: Benches not otherwise provided for
- A47D 1/00: Children's chairs
- A47F 1/04: {Racks or} containers with arrangements for dispensing articles {, e.g. by means of gravity or springs}
- A47F 5/11: made of cardboard, paper or the like {(racks or cabinets made of cardboard, paper or the like A47B43/02, A47B47/06; stands for packaging and displaying B65D5/52)}
- F16B 5/0012: {a tongue on the edge of one sheet, plate or panel co-operating with a groove in the edge of another sheet, plate or panel}
- F16B 12/00: Jointing of furniture or the like, e.g. hidden from exterior (F16B2/00 - F16B11/00 take precedence; fastening means per se F16B13/00 - F16B47/00; wood-working B27)
- A47B 43/02: made of cardboard or the like {(travelling wardrobes A47B61/06; hand-folded from sheet material and specially adapted for display A47F5/116)}
- A47B 2220/0086: made of cardboard
- A47C 4/00: Foldable, collapsible or dismountable chairs (of tubular metal type A47C5/10)
- A47C 4/02: Dismountable chairs
- F16B 2200/65: Miter joints
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)
- A47C: CHAIRS; SOFAS; BEDS
- A47D: FURNITURE SPECIALLY ADAPTED FOR CHILDREN (school benches or desks A47B39/00, A47B41/00)
- A47F: SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS

## Abstract

A dovetail and slot assembly made from panels comprising layered corrugated Kraft. The applications are multiple, ranging from items of furniture such as chairs, tables, benches, shelves, items for loading products, display units, and packagings. The assembly systems are also designed to be set up in such a way that it is practical and easy for the user without needing to use tools. It enables and facilitates the transport of the structures prior to assembly in parts arranged in a compact manner, occupying a relatively small space.

## Claims

### Claim 1

A dovetail and slot assembly for two substantially planar members, the assembly comprising:
a first member and a second member that each comprise at least two glued layers selected from corrugated Kraft layers and honeycomb Kraft layers;
the first member has a first contacting edge, and a first planar surface, the first contacting edge and first planar surface forming a substantially right-angled corner, and the second member has a second contacting edge and a substantially rectangular dovetail cantilevered from the second contacting edge;
the first planar surface having a slot to accept a dovetail, the slot optionally having a rounded entrance;
the dovetail having a rectangular block and a fin, wherein the rectangular block is wider than the fin and the block is attached to the first member by the fin;
wherein the fin comprises at least one continuous corrugated Kraft layer that also makes up at least a portion of the first member, and wherein the block comprises a center portion comprising a continuous corrugated Kraft layer that extends through the fin and into the first member, and the block comprises at least two more layers of corrugated Kraft than the corrugated Kraft in the fin; and
a means for interlocking the first and second members, the means for interlocking comprising a frictionally engaged dovetail and slot connection formed by slidibly inserting the block of the dovetail into the slot of the first member forming a substantially tight connection, and wherein the first and second members are substantially perpendicular to each other.

### Claim 2 (depends on 1)

The assembly of claim 1, wherein the fin comprises at least three glued corrugated Kraft layers.

### Claim 3 (depends on 1)

The assembly of claim 1, wherein block comprises at least three layers of corrugated Kraft glued on each side of the fin.

### Claim 4 (depends on 1)

The assembly of claim 1, wherein flutes of the corrugate in the fin are perpendicular to flutes of at least one layer in the block.

### Claim 5 (depends on 1)

The assembly of claim 1, wherein flutes of the corrugate in the fin are aligned substantially parallel to a longitudinal axis of the dovetail.

### Claim 6 (depends on 1)

The assembly of claim 1, wherein the Kraft is selected from the group consisting of Kraft paper, fiberboard, chipboard, and paperboard.

### Claim 7 (depends on 1)

The assembly of claim 1, wherein the corrugated Kraft comprises a flute that is selected from the group consisting of A flute, B flute, C flute D flute, G flute, N flute, double wall AB, double wall BC, double wall BB, double wall AC, E flute, double wall EE, F flute, double wall EB, double wall CC, triple wall EBE, triple wall ABB, triple wall CBC flute, and triple wall ACA flute.