Portable heat circulation means

Claim 2

A portable heat circulation means, particularly adapted to be placed upon heaters such as kerosene heaters, comprising: (a) a plenum housing means defining a plenum chamber therein and adapted to be positionable upon a heater, said plenum housing means defining a plenum intake means therein to receive warm air to be gathered within said plenum chamber, said plenum housing further comprising: 1. a plenum wall means extending about said plenum chamber and defining a plurality of hot air apertures therethrough establishing fluid flow communication between said plenum chamber and the external environment; and 2. a plenum top means extending over said plenum wall means to define said plenum chamber therebelow, said plenum top means being generally convex in an upwardly facing direction to provide: a. a convex convection surface thereabove; b. a main housing means fixedly secured above said plenum housing means and defining a cool air inlet adjacent said convex convection surface, said main housing means defining a cool air chamber therein, said main housing means and said plenum housing means defining a main outlet means therebetween, said main housing means defining a cool air inlet means therein; and c. a blower means located within said main housing means and being operative to draw air inwardly through said cool air inlet means into said cool air chamber and outwardly through said cool air outlet means along said convex convection surface for heating thereof and out through said main outlet means into the surrounding environment.

Claim 3

The means as defined in claim 1 wherein said blower means comprises a fan means mounted within said main housing means and a drive means operatively secured to said fan means for rotation thereof.

Claim 4

The means as defined in claim 2 further including a control means in electrical connection with respect to said drive means to vary the speed of operation thereof to vary the speed of rotation of said fan means.

Claim 5

The means as defined in claim 2 further including an indicator means in electrical communication with respect to said drive means to be in the indicating mode responsive to operation of said drive means.

Claim 6

The means as defined in claim 2 further including a switch means in electrical communication with respect to said drive means to selectively interrupt and communicate electrical power to said drive means.

Claim 7

The means as defined in claim 2 wherein said main housing means defines a drive compartment within which said drive means is located and a firewall means separating said drive compartment from said cool air chamber to protect said drive means from excessive heat.

Claim 8

The means as defined in claim 6 wherein said firewall means defines firewall apertures therethrough to admit cool air into said cool air chamber.

Claim 9

The means as defined in claim 6 further including a heat shield fixedly secured to said firewall between said drive means and said firewall.

Claim 10

The means as defined in claim 1 wherein said convex convection surface is shaped as an inverted cone.

Claim 11

The means as defined in claim 1 wherein said main outlet means is located adjacent said hot air apertures to draw hot air therefrom when the air is flowing thereacross.

Claim 12

The means as defined in claim 10 wherein said convex convection surface includes a lip means extending outwardly therefrom over said plenum wall means to increase the suction of air traveling adjacent said hot air apertures and to increase the circulation of warmed air being circulated out through said main outlet means.

Claim 13

A portable heat circulation means, particularly adapted to be placed upon heaters such as kerosene heaters, comprising: (a) a plenum housing means defining a plenum chamber therein and adapted to be positionable upon a heater, said plenum housing means defining a plenum intake means therein to receive warm air to be gathered within said plenum chamber, said plenum housing further comprising: 1. a plenum wall means extending about said plenum chamber and defining a plurality of hot air apertures therethrough establishing fluid flow communication between said plenum chamber and the external environment; and 2. a plenum top means extending over said plenum wall means to define said plenum chamber therebelow, said plenum top means being generally convex in an upwardly facing direction to provide: a. a convex convection surface thereabove being shaped like an inverted cone; b. a main housing means fixedly secured above said plenum housing means and defining a cool air inlet adjacent said convex convection surface, said main housing means defining a cool air chamber therein, said main housing means and said plenum housing means defining a main outlet means therebetween, located adjacent to said hot air apertures to suction hot air therefrom, said main housing means defining a cool air inlet means therein, said main housing means defining a drive compartment and defining a firewall means separating said drive compartment from said cold air chamber; c. a blower means located within said main housing means and being operative to draw air inwardly through said cool air inlet means into said cool air chamber and outwardly through said cool air outlet means along said convex convection surface for heating thereof and out through said main outlet means into the surrounding environment, said blower means further comprising a fan means mounted within said cool air chamber of said main housing means and a drive means mounted in said drive compartment thereof and operatively secured to said fan means for rotation thereof; d. a control means in electrical connection with respect to said drive means to vary the speed of operation thereof to vary the speed of rotation of said fan means; e. an indicator means in electrical communication with respect to said drive means to be in the indicating mode responsive to operation of said drive means; and f. a switch means in electrical communication with respect to said drive means to selectively interrupt and communicate electrical power to said drive means.

Claim 14

A portable heat circulation means, particularly adapted to be placed upon heaters such as kerosene heaters, comprising: (a) a plenum housing means defining a plenum chamber therein and adapted to be positionable upon a heater, said plenum housing means defining a plenum intake means therein to receive warm air to be gathered within said plenum chamber, said plenum housing further comprising: 1. a plenum wall means extending about said plenum chamber and defining a plurality of hot air apertures therethrough establishing fluid flow communication between said plenum chamber and the external environment; and 2. a plenum top means extending over said plenum wall means to define said plenum chamber therebelow, said plenum top means being generally convex in an upwardly facing direction to provide: a. a convex convection surface thereabove being shaped like an inverted cone; b. a main housing means fixedly secured above said plenum housing means and defining a cool air inlet adjacent said convex convection surface, said main housing means defining a cool air chamber therein, said main housing means and said plenum housing means defining a main outlet means therebetween, located adjacent to said hot air apertures to suction hot air therefrom, said main housing means defining a cool air inlet means therein, said main housing means defining a drive compartment and defining a firewall means separating said drive compartment from said cold air chamber; c. a blower means located within said main housing means and being operative to draw air inwardly through said cool air inlet means into said cool air chamber and outwardly through said cool air outlet means along said convex convection surface for heating thereof and out through said main outlet means into the surrounding environment, said blower means further comprising a fan means mounted within said cool air chamber of said main housing means and a drive means mounted in said drive compartment thereof and operatively secured to said fan means for rotation thereof; d. a control means in electrical connection with respect to said drive means to vary the speed of operation thereof to vary the speed of rotation of said fan means; e. an indicator means in electrical communication with respect to said drive means to be in the indicating mode responsive to operation of said drive means; and f. a switch means in electrical communication with respect to said drive means to selectively interrupt and communicate electrical power to said drive means.