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A frost protective device for citrus trees having a pad of thick, dark colored, water repellent urethane foam which may be wrapped in a cylinder around the budunion or branch of a citrus tree and secured in position using Velcro�

A frost protective device for citrus trees having a pad of thick, dark colored, water repellent urethane foam which may be wrapped in a cylinder around the budunion or branch of a citrus tree and secured in position using Velcro�

대표청구항 ▼

A protective device for protecting a tree from damage due to frost, said tree including a trunk or branch having a circumference, said protective device being applied to the tree by a user, said protective device comprising: an insulating protective pad, said protective pad having two opposing end e

A protective device for protecting a tree from damage due to frost, said tree including a trunk or branch having a circumference, said protective device being applied to the tree by a user, said protective device comprising: an insulating protective pad, said protective pad having two opposing end edges and a length measured therebetween sufficient that said protective pad may be wrapped around the trunk or branch of the tree in a generally upright position and creating a barrier to retard the loss of thermal energy from the proximity of the trunk or branch of the tree; means for securing said protective pad in said generally upright position wrapped around the trunk or branch of the tree; at least one self-contained exothermic heat source which produces heat other than by the release of the latent heat of fusion of a liquid, said exothermic heat source being positioned between said protective pad and the trunk or branch of the tree and capable of selectively generating sufficient and sustained thermal energy over a prolonged period when activated by the user to warm the tree to a temperature above the freezing point of water and prevent frost damage to the tree; and means for securing said exothermic heat source at a predetermined position relative to said protective pad and the trunk or branch of the tree and enclosed within said protective pad.