Infrared heater and ventilator unit

Claim 2

A combination heater-ventilator unit, comprising a housing adapted to be mounted in a wall of a room with its front facing outward and having an opening in its front extending to the exterior of the housing, and an opening adjacent its rear, a strap extending transversely across said housing intermediate its front and rear, a lamp socket mounted on the front side of said strap and adapted to hold an infrared lamp in alignment with the firstnamed opening, a fan disposed between said strap and the rear of said housing, a motor mounted in said housing for driving said fan and a first electric circuit for supplying power only to said motor to drive said fan, and including a first manually operable switch for closing and opening said first circuit, and a second circuit energizable independently of said first switch to supply power to said socket and selectively to said motor, said second circuit including a second manually operable switch, a normally-open thermostatic switch responsive to the temperature within said housing and which closes automatically to connect said motor in said second circuit, when the temperature in said housing rises to a first predetermined level, and opens automatically when the temperature in said housing has been lowered to a predetermined degree, thereby to cause said fan to draw air into said housing through said first-named openiNg and to exhaust air through said secondnamed opening, when said thermostatic switch is closed, thereby to ventilate said housing.

Claim 3

A combination heater-ventilator unit according to claim 1, including a second, normally-closed thermostatic switch in said second responsive to the temperature within said housing and circuit operative, when the temperature in said housing rises above said first predetermined level, to open and deenergize said second circuit.

Claim 4

A combination heater-ventilator unit as claimed in claim 1, wherein said motor is mounted on to rear of said strap, and said fan is mounted on the armature shaft of said motor.

Claim 5

A combination heater-ventilator unit, comprising a housing adapted to be mounted in a wall of a room with its front facing outwardly and having an opening through its front extending to the exterior of said housing and an opening at its rear for venting the housing, a strap extending transversely across said housing intermediate its front and rear, two lamp sockets mounted on the front side of said strap and adapted to hold infrared lamps, a fan disposed between said strap and the rear of said housing, a motor mounted in said housing on the rear of said strap for driving said fan to draw air through said front opening and exhaust through said rear opening, first electric circuit means for connecting said lamps to an electric power source including two separate manually-operable switches operable independently of one another, electric conductors connecting said lamps with said two switches, respectively, a normally-closed thermostatic switch responsive to the temperature within said housing, and common conducting means for connecting each of said lamps through said thermostatic switch to said power source, and second electric circuit means for supplying power from said source to said motor including a normally-open thermostatic switch responsive to the temperature within said housing for connecting said motor to one of said two separate manually-operable switches, and operative to close and energize said motor whenever said one switch is closed and the temperature in said housing exceeds a predetermined level.

Claim 6

A combination heater-ventilator unit, comprising a housing adapted to be mounted in a wall of a room with its front facing outwardly and having an opening through its front extending to the exterior of said housing and an opening at its rear for venting the housing, a strap extending transversely across said housing intermediate its front and rear, two lamp sockets mounted on the front side of said strap and adapted to hold infrared lamps, a fan disposed between said strap and the rear of said housing, a motor mounted in said housing on the rear of said strap for driving said fan to draw air through said front opening and exhaust through said rear opening, first electric circuit means for connecting said lamps to an electric power source including two separate manually-operable switches operable independently of one another, electric conductors connecting said lamps with said two switches, respectively, a normally-closed thermostatic switch responsive to the temperature within said housing, and common conducting means for connecting each of said lamps through said thermostatic switch to said power source, and second electric circuit means for supplying power from said source to said motor including a normally-open thermostatic switch responsive to the temperature within said housing for connecting said motor to one of said two separate manually-operable switches, and operative to close and energize said motor whenever said one switch is closed and the temperature in said housing exceeds a predetermined level.

Claim 7

A combination heater-ventilator unit as claimed in claim 4, having a third manually-operable switch for connecting said motor directly to said power source.

Claim 8

A combination heater-ventilator unit as claimed in claim 4, wherein said normally-closed thermostatic switch is adjusted to open at a temperature greater than said predetermined level.