# US 5,699,646 A · Method of storing logs and lumber cut therefrom

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- Number: US 5,699,646 A
- Document ID: US5699646A
- Status: Granted
- Kind: A
- Application number: 08/574,399
- Filed: 1995-12-18
- Granted: 1997-12-23
- Earliest claimed: 1994-06-30
- Assignees: Cornelia Textiles, Inc.
- Inventors: John F. Hammer
- Web page: https://patentgrep.com/patent/US5699646A

## CPC

- F26B 9/006: {Removable covering devices, e.g. pliable or flexible}
- F26B: DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM (drying devices for combines A01D41/133; racks for drying fruit or vegetables A01F25/12; drying foodstuffs A23; drying hair A45D20/00; body-drying implements A47K10/00; drying household articles A47L; drying gases or vapours B01D; chemical or physical processes for dewatering or like separating liquids from solids B01D43/00; centrifugal apparatus B04; drying ceramics C04B33/30; drying yarns or fabrics in association with some other form of treatment D06C; drying frames for laundry without heating or positive air circulation, domestic laundry-or spin-driers, wringing or hot pressing laundry D06F; furnaces, kilns, ovens F27)

## Abstract

A stack of dried lumber (50) is inhibited from staining and discoloring as it is stored in open air by being overlaid with an air pervious plastic material (16). The plastic material has a material to air density of greater than 70% to restrict sunlight, wind and rain and less than 90% to allow for adequate ventilation.

## Claims

### Claim 1

A method of inhibiting the staining and discoloring of dried lumber during unsheltered storage in open air comprising the steps of:
(a) overlaying the dried lumber with an air pervious plastic material having a material to air density of between 70% and 90%, and
(b) positioning the material overlaid dried lumber in open air.

### Claim 2 (depends on 1)

The method of claim 1 wherein the dried lumber is overlaid with a plastic material having a material to air density of approximately 80% over the dried lumber.

### Claim 3 (depends on 2)

The method of claim 2 wherein the periphery of the plastic material is anchored to the lumber supporting terrain.

### Claim 4 (depends on 1)

The method of claim 1 wherein the dried lumber is overlaid with plastic material comprised of polymeric material selected from the group consisting of polyethylene and polypropylene polymers.

### Claim 5 (depends on 1)

The method of claim 1 wherein the dried lumber is overlaid with a woven air pervious plastic material.

### Claim 6 (depends on 1)

The method of claim 1 wherein steps (a) and (b) are performed in sequence.

### Claim 7

A method of inhibiting the staining and discoloring of dried lumber during unsheltered storage in open air wherein:
(a) the dried lumber is positioned in unsheltered, open air, and
(b) the dried lumber is overlaid with an air pervious plastic material having a material to air density of between 70% and 90%.

### Claim 8 (depends on 7)

The method of claim 7 wherein the dried lumber is overlaid with a plastic material having a material to air density of approximately 80% over the dried lumber.

### Claim 9 (depends on 8)

The method of claim 8 wherein the periphery of the plastic material is anchored to the lumber supporting terrain.

### Claim 10 (depends on 7)

The method of claim 7 wherein the dried lumber is overlaid with plastic material comprised of polymeric material selected from the group consisting of polyethylene and polypropylene polymers.

### Claim 11 (depends on 7)

The method of claim 7 wherein the dried lumber is overlaid with a woven air pervious plastic material.

### Claim 12 (depends on 7)

The method of claim 7 wherein steps (a) and (b) are performed in sequence.