Ventilating unit for sound control room

Claim 2

An enclosed ventilating unit for circulating air through a portable sound control room constructed of insulating materials providing an acoustically isolated environment in a larger surrounding space, said ventilating unit comprising, a. a casing adapted to be mounted on a wall of the sound control room, said casing including an inlet aperture adapted to register with a ventilating aperture in the wall and an outlet aperture leading from the casing to the surrounding space, b. a fan unit in the casing including a motor driven fan and a fan housing having an inlet adjacent the inlet aperture in the casing and an outlet opening into the casing, c. means resiliently mounting the fan unit in the casing to absorb vibration, and d. exposed sound insulating means lining the interior of the casing to absorb sound therein, e. resilient sealing means on the casing around the inlet aperture and engageable with the wall of the sound coNtrol room, and f. resilient sealing means around the inlet to the fan housing, between the fan housing and the casing, g. whereby the sound and vibration of the fan unit are substantially absorbed in the ventilating unit without transmission into the sound control room or the surrounding space.

Claim 3

A ventilating unit as defined in claim 1, wherein the fan housing includes a diffuser of increasing cross section leading to the outlet for reducing the velocity of the air discharged by the fan.

Claim 4

A ventilating unit for a sound control room, comprising, a. a support panel adapted to be attached to a wall of a sound control room with an inlet aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including an electric drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel having an axial laterally opening inlet and a tangential diffuser of increasing cross section with an outlet directed away from the fan, c. means mounting the fan unit on the support panel with the inlet in register with the inlet aperture in the panel, and d. a cover on the support panel enclosing the fan unit and including an exhaust opening at the opposite side of the fan unit from the diffuser outlet.

Claim 5

A ventilating unit for a sound control room, comprising, a. a support panel adapted to be attached to a wall of a sound control room with an inlet aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including an electric drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel having an axial laterally opening inlet and a tangential diffuser of increasing cross section with an outlet directed away from the fan, c. means mounting the fan unit on the support panel with the inlet in register with the inlet aperture in the panel, and d. a cover on the support panel enclosing the fan unit and including an exhaust opening at the opposite side of the fan unit from the diffuser outlet.

Claim 6

A ventilating unit as defined in claim 3, wherein the tangential diffuser is upwardly directed, and the cover has an exhaust opening at the bottom thereof.

Claim 7

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured to the outside of a wall of a sound control room with an aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft, and a fan housing around the fan wheel including a laterally opening inlet and an outlet directed away from the fan, c. means resiliently mounting the fan unit on the panel adjacent the aperture in the panel comprising resilient suspension means permitting lateral movement of the fan unit toward the panel responsive to pressure differential on operation of the fan wheel, d. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel and compressible on movement of the fan unit toward the panel, and e. a cover on the panel enclosing the fan unit and including an exhaust opening.

Claim 8

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured to the outside of a wall of a sound control room with an aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft, and a fan housing around the fan wheel including a laterally opening inlet and an outlet directed away from the fan, c. means resiliently mounting the fan unit on the panel adjacent the aperture in the panel comprising resilient suspension means permitting lateral movement of the fan unit toward the panel responsive to pressure differential on operation of the fan wheel, d. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel and compressible on movement of the fan unit toward the panel, and e. a cover on the panel enclosing the fan unit and including an exhaust opening.

Claim 9

A ventilating unit as defined in claim 5, including sound insulating material lining the interior of the cover and the surface of the panel cover. the cover

Claim 10

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured to the outside of a wall of a sound control room with an aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft, and a fan housing around the fan wheel including a laterally opening inlet and an outlet directed away from the fan, c. means resiliently mounting the fan unit on the panel adjacent the aperture in the panel for movement of the fan unit inlet toward the panel adjacent the ventilating aperture, d. a cover on the panel enclosing the fan unit and including an exhaust opening, and e. resilient sealing means along the perimeter of the panel on the surface thereof adapted to be disposed adjacent the sound control room.

Claim 11

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured to the outside of a wall of a sound control room with an aperture in the panel in register with a ventilating aperture in the wall, b. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft, and a fan housing around the fan wheel including a laterally opening inlet and an outlet directed away from the fan, c. means resiliently mounting the fan unit on the panel adjacent the aperture in the panel for movement of the fan unit inlet toward the panel adjacent the ventilating aperture, d. a cover on the panel enclosing the fan unit and including an exhaust opening, and e. resilient sealing means along the perimeter of the panel on the surface thereof adapted to be disposed adjacent the sound control room.

Claim 12

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion fo the panel in register with a ventilating aperture in the wall, b. fan support means on the panel, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support meAns with the inlet in register with the aperture in the panel, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, and i. sound insulating means lining the interior of the cover and the surface of the panel within the cover.

Claim 13

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion fo the panel in register with a ventilating aperture in the wall, b. fan support means on the panel, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support meAns with the inlet in register with the aperture in the panel, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, and i. sound insulating means lining the interior of the cover and the surface of the panel within the cover.

Claim 14

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion of the panel in register with a ventilating aperture in the wall, b. fan support means on the panel comprising spaced outwardly projecting support members rigidly secured to the panel adjacent the aperture therein, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support means with the inlet in register with the aperture in the panel comprising resilient suspension means hung respectively from said support members and supporting the fan unit, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, and i. sound insulating means lining the interior of the cover and the surface of the panel within the cover.

Claim 15

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion of the panel in register with a ventilating aperture in the wall, b. fan support means on the panel comprising spaced outwardly projecting support members rigidly secured to the panel adjacent the aperture therein, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support means with the inlet in register with the aperture in the panel comprising resilient suspension means hung respectively from said support members and supporting the fan unit, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient sealing means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, and i. sound insulating means lining the interior of the cover and the surface of the panel within the cover.

Claim 16

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion of the panel in register with a ventilating aperture in the wall, b. fan support means on the panel, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support means with the inlet in register with the aperture in the panel, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, i. sound insulating means lining the interior of the cover and the surface of the panel within the cover, j. an inverted L-shaped bracket on the lower portion of the panel adapted to be inserted in a ventilating aperture in a wall of the sound control room upon removal of a louvered vent, and k. a plurality of small apertures in the upper portion of the panel adapted to receive screws for attaching the panel to the wall.

Claim 17

A ventilating unit for a sound control room, comprising, a. a panel adapted to be secured on a wall of a sound control room with an aperture in the lower portion of the panel in register with a ventilating aperture in the wall, b. fan support means on the panel, c. a fan unit including a drive motor with a shaft, a fan wheel on the motor shaft and a fan housing around the fan wheel including a laterally opening inlet and a tangential diffuser with an outlet directed upwardly, d. means resiliently mounting the fan unit on the fan support means with the inlet in register with the aperture in the panel, e. a cover enclosing the fan unit and including an outlet at the bottom thereof, f. means securing the cover to the panel, g. resilient sealing means around the aperture in the panel adapted to engage the wall of the sound control room around the ventilating aperture in the wall, h. resilient means around the inlet to the fan unit housing and the aperture in the panel, between the housing and the panel, i. sound insulating means lining the interior of the cover and the surface of the panel within the cover, j. an inverted L-shaped bracket on the lower portion of the panel adapted to be inserted in a ventilating aperture in a wall of the sound control room upon removal of a louvered vent, and k. a plurality of small apertures in the upper portion of the panel adapted to receive screws for attaching the panel to the wall.