# US 5,348,263 A · Portable expandable lap desk

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- Number: US 5,348,263 A
- Document ID: US5348263A
- Status: Granted
- Kind: A
- Application number: 08/138,347
- Filed: 1993-10-18
- Granted: 1994-09-20
- Earliest claimed: 1993-10-18
- Inventors: Frank M. Hubbard
- Web page: https://patentgrep.com/patent/US5348263A

## CPC

- A47B 23/002: {supported only by a person}
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)

## Abstract

This invention relates to a portable expandable desk comprising a first substantially rigid flat surface member; a second substantially rigid flat surface member; a means for hingedly attaching the first surface member to the second surface member so that the first and second surface members are capable of folding together; and a means for bracing the first surface member and the second surface member in an unfold position wherein the bracing means comprises a gripping means to prevent the bracing means from inadvertently disengaging from the first or second surface member.

## Claims

### Claim 1

A portable expandable desk article comprising a first substantially rigid flat surface member; a second substantially rigid flat surface member; a means for hingedly attaching the first surface member to the second surface member so that the first and second surface members are capable of folding together; and a means for bracing the first surface member and the second surface member in an unfolded position wherein the bracing means comprises a gripping means to prevent the bracing means from inadvertently disengaging from the first or second surface member wherein the width of the second surface member is greater than the width of the first surface member to provide a storage surface for storing the bracing means when the first and second surface members are in a folded position.

### Claim 2 (depends on 1)

A desk article as defined in claim 1 further comprising a locking means for securing the first and second surface members in a folded position.

### Claim 3 (depends on 2)

A desk article as defined in claim 2 wherein the locking means is also the bracing means.

### Claim 4 (depends on 2)

A desk article as defined in claim 2 wherein the locking means is eye and hook fabric.

### Claim 5 (depends on 1)

A desk article as defined in claim 1 wherein the first surface member, the second surface member and the bracing means are fabricated from wood, cardboard, plastic, aluminum, metal or any combination of the foregoing.

### Claim 6 (depends on 1)

A desk article as defined in claim 1 wherein the gripping means comprise a friction fit resilent material.

### Claim 7 (depends on 6)

A desk article as defined in claim 6 wherein said gripping means is made of rubber, plastic or felt.

### Claim 8 (depends on 1)

A desk article as defined in claim 1 further comprising a means for retaining a writing implement.

### Claim 9 (depends on 1)

A desk article as defined in claim 1 further comprising a means for storing paper.

### Claim 10 (depends on 9)

A desk article as defined in claim 9 wherein the paper storage means is a clip, pocket structure or any combination of the foregoing.

### Claim 11 (depends on 1)

A desk article as defined in claim 1 further comprising a means for positioning and maintaining the desk article in an inclined state.

### Claim 12

A portable expandable desk article consisting essentially of a first substantially rigid flat surface member; a second substantially rigid flat surface member that is longer in width than the first surface member; a hinge means for attaching the first surface member to the second surface member so that the first and second surface members are capable of folding together; a bracing means for bracing the first surface member and the second surface member in an unfolded position, that is stored on a portion of the second surface member that extends beyond the first surface member when the first and second surface members are in a folded position; a gripping means for preventing the bracing means from inadvertently disengaging from the first or second surface member; optionally a locking means for securing the first and second surface members in a folded position; optionally a means for retaining a writing implement; optionally a means for storing paper; and optionally a means for positioning and maintaining the desk article in an inclined state.