Grill/filter mounting assembly

Claim 2

In combination with a duct for a forced air system, a grill assembly disposed in a rectangular duct opening in a wall surface of a room into which said duct terminates including; a pair of mounting brackets fixedly mounted on opposite sides of said rectangular duct adjacent the duct opening; said mounting brackets formed in a generally L-shaped cross section having a first side and a second side, said first side having a length to be received and fixedly mounted within said duct adjacent the opening; said second side of said bracket disposed adjacent and overlying the outside wall surface at the duct opening when said bracket is fixedly secured in said duct; at least one of said mounting brackets having hinge means including an axis about which hinge members of said hinge swing, one of said hinge members of said hinge means being fixedly secured on said second side of said mounting bracket oriented such that the axis of said hinge means is generally parallel to and adjacent one of the rectangular sides of the duct opening; a grill plate, mounted on said at least one said mounting brackets having hinge means, containing an air flow opening disposed in close proximity to and over said duct opening, said grill plate having a rectangular shape corresponding to the shape of said duct opening and having a size larger than the duct opening to cover the duct opening and said mounting bracket; and a closure device disposed on said grill assembly to retain said grill plate in a closed position over the duct opening.

Claim 3

A grill assembly according to claim 1 wherein said assembly includes at least one stabilizing attached to the first side of said mounting brackets and extending therebetween, disposed adjacent to one of the other sides of said duct.

Claim 4

A grill assembly according to claim 1 wherein said grill plate air opening includes louvers for directing air flow transiting said grill plate.

Claim 5

A grill assembly according to claim 2 wherein said mounting brackets are adapted to receive moveable louvers disposed intermediate said brackets in rows extending from adjacent one side of said duct opening and parallel thereto, to adjacent the opposite wall of said duct whereby movement of said louvers will regulate the flow of air exiting said duct.

Claim 6

A grill assembly according to claim 1 wherein said grill face! plate is adapted with a retaining bracket on the duct side thereof for receiving and retaining thereon a particulate filter disposed over said air flow opening in said face plate.

Claim 7

A grill assembly according to claim 2 wherein said assembly includes a second stabilizing bracket disposed between said mounting brackets and extending adjacent said side of said duct opposite said first stabilizing bracket thereby forming a generally rectangular assembly for being closely received within said duct opening.

Claim 8

A grill assembly according to claim 5 wherein said grill plate retaining bracket is disposed adjacent to the lower edge of said grill plate.

Claim 9

A grill assembly according to claim 5 wherein said grill plate retaining bracket is disposed adjacent a vertical edge of said grill plate.

Claim 10

A grill assembly according to claim 1 wherein hinge means is located on each of said mounting brackets whereby said grill plate swings about an axis parallel to the a side of said duct opening between said mounting brackets.

Claim 11

A grill assembly according to claim 9 wherein said hinge means are located on said mounting brackets adjacent the lower edge of said duct opening whereby said gill plate swings on an axis adjacent said lower edge of said duct opening.

Claim 12

A grill assembly according to claim 1 wherein said closure device is a spring device in said hinge means, preloaded to hold said grill plate in a closed position relative to said duct opening.

Claim 13

A grill assembly according to claim 1 wherein said hinge means is located on one of said mounting brackets whereby said grill plate swings about an axis parallel to the edge of said duct opening wherein said mounting bracket is mounted.

Claim 14

A grill filter assembly for mounting in the a duct opening of a rectangular, forced air duct terminating in a wall surface of a room in a building comprising: a pair of side mounting brackets fixedly secured on opposite sides of said rectangular duct, adjacent the duct opening; said mounting brackets formed in a generally L-shaped cross section having a first side and a second side, said first side having a length received and mounted within said duct adjacent the duct opening, said second side disposed adjacent the outside wall surface at the duct opening when said bracket is fixedly secured in said duct, at least one of said mounting bracket having hinge means for mounting and retaining thereon a grill plate containing an air flow opening disposed in close proximity to the duct opening; a pair of stabilizing brackets disposed respectively adjacent the other opposite sides of said rectangular duct extending between said pair of mounting brackets and fixedly attached thereto forming a rectangular frame inside said duct; said grill plate of said grill assembly having a rectangular shape corresponding to the shape of said duct opening and having a size larger than the duct opening to cover the duct opening and said mounting bracket; said grill plate being fixedly secured to said hinge means on at least one of said mounting brackets, said hinge means having a swing axis being adjacent one side of said duct at the opening whereby said plate may swing about said hinge means axis from a closed position covering the duct opening to an open position; and a closure device disposed on said grill assembly to selectively retain said grill plate in the closed position.

Claim 15

A grill filter assembly for mounting in the a duct opening of a rectangular, forced air duct terminating in a wall surface of a room in a building comprising: a pair of side mounting brackets fixedly secured on opposite sides of said rectangular duct, adjacent the duct opening; said mounting brackets formed in a generally L-shaped cross section having a first side and a second side, said first side having a length received and mounted within said duct adjacent the duct opening, said second side disposed adjacent the outside wall surface at the duct opening when said bracket is fixedly secured in said duct, at least one of said mounting bracket having hinge means for mounting and retaining thereon a grill plate containing an air flow opening disposed in close proximity to the duct opening; a pair of stabilizing brackets disposed respectively adjacent the other opposite sides of said rectangular duct extending between said pair of mounting brackets and fixedly attached thereto forming a rectangular frame inside said duct; said grill plate of said grill assembly having a rectangular shape corresponding to the shape of said duct opening and having a size larger than the duct opening to cover the duct opening and said mounting bracket; said grill plate being fixedly secured to said hinge means on at least one of said mounting brackets, said hinge means having a swing axis being adjacent one side of said duct at the opening whereby said plate may swing about said hinge means axis from a closed position covering the duct opening to an open position; and a closure device disposed on said grill assembly to selectively retain said grill plate in the closed position.

Claim 16

A grill assembly according to claim 13 wherein said grill plate air opening includes louvers for directing air flow transiting said gill plate.

Claim 17

A grill assembly according to claim 13 wherein said mounting brackets are adapted to receive moveable louvers disposed intermediate said brackets in rows extending from adjacent one side of said duct opening and parallel thereto, to adjacent the opposite wall of said duct whereby movement of said louvers will regulate the flow of air exiting said duct.

Claim 18

A grill assembly according to claim 13 wherein said grill plate is adapted with a retaining bracket on the duct side thereof for receiving and retaining thereon a particulate filter disposed over said air flow opening in said gill plate.

Claim 19

A grill assembly according to claim 13 wherein said hinge means are located on said mounting brackets adjacent the lower edge of said duct opening whereby said gill plate swings on an axis adjacent said lower edge of said duct opening.

Claim 20

A grill assembly according to claim 13 wherein said closure device is a spring device in said hinge means, reloaded to hold said gill plate in a closed position relative to said duct opening.